I-pipe frozen back-tracing service on 2.6.20-adeos1.8_05-xenomai2.3.2/ipipe-1.8-05
------------------------------------------------------------
Freeze: 279106468935 cycles, Trace Points: 1000 (+1000)
Calibrated minimum trace-point overhead: 0.116 us

 +----- Hard IRQs ('|': locked)
 |+---- <unused>
 ||+--- <unused>
 |||+-- Xenomai
 ||||+- Linux ('*': domain stalled, '+': current, '#': current+stalled)
 |||||                        +---------- Delay flag ('+': > 1 us, '!': > 10 us)
 |||||                        |        +- NMI noise ('N')
 |||||                        |        |
      Type    User Val.   Time    Delay  Function (Parent)
:|   #begin   0x80000000 -8553    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000 -8553    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func               -8553    0.187  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func               -8552    0.131  skb_copy_datagram_iovec+0xe (packet_recvmsg+0xb7 [af_packet])
:    +func               -8552    0.139  memcpy_toiovec+0xe (skb_copy_datagram_iovec+0x141)
:    +func               -8552    0.127  copy_to_user+0xb (memcpy_toiovec+0x4c)
:    +func               -8552    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
:    +func               -8552    0.116  cond_resched+0x8 (copy_to_user+0x3b)
:    +func               -8552    0.150  __copy_to_user_ll+0xa (copy_to_user+0x46)
:    +func               -8552    0.326  __copy_user_intel+0x12 (__copy_to_user_ll+0x51)
:    +func               -8551    0.127  skb_free_datagram+0x8 (packet_recvmsg+0x159 [af_packet])
:    +func               -8551    0.131  kfree_skb+0x8 (skb_free_datagram+0xf)
:    +func               -8551    0.146  __kfree_skb+0xd (kfree_skb+0x23)
:    +func               -8551    0.157  sock_rfree+0x8 (__kfree_skb+0x56)
:    +func               -8551    0.116  kfree_skbmem+0x9 (__kfree_skb+0x9a)
:    +func               -8551    0.135  skb_release_data+0xa (kfree_skbmem+0x10)
:    +func               -8550    0.116  kfree+0xb (skb_release_data+0x5e)
:    +func               -8550    0.120  ipipe_check_context+0x11 (kfree+0x1b)
:    +func               -8550    0.127  __ipipe_test_and_stall_root+0x16 (kfree+0x20)
:|   +begin   0x80000001 -8550    0.165  __ipipe_test_and_stall_root+0x6b (kfree+0x20)
:|   #end     0x80000001 -8550    0.150  __ipipe_test_and_stall_root+0x47 (kfree+0x20)
:    #func               -8550    0.127  __ipipe_restore_root+0x8 (kfree+0x75)
:    #func               -8550    0.154  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000 -8550    0.139  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000 -8549    0.142  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func               -8549    0.139  kmem_cache_free+0xe (kfree_skbmem+0x3d)
:    +func               -8549    0.120  ipipe_check_context+0x11 (kmem_cache_free+0x40)
:    +func               -8549    0.123  __ipipe_test_and_stall_root+0x16 (kmem_cache_free+0x45)
:|   +begin   0x80000001 -8549    0.142  __ipipe_test_and_stall_root+0x6b (kmem_cache_free+0x45)
:|   #end     0x80000001 -8549    0.142  __ipipe_test_and_stall_root+0x47 (kmem_cache_free+0x45)
:    #func               -8549    0.131  __ipipe_restore_root+0x8 (kmem_cache_free+0x86)
:    #func               -8548    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000 -8548    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000 -8548    0.184  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func               -8548    0.150  move_addr_to_user+0x16 (sys_recvfrom+0xbd)
:    +func               -8548    0.116  copy_to_user+0xb (move_addr_to_user+0x65)
:    +func               -8548    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
:    +func               -8548    0.116  cond_resched+0x8 (copy_to_user+0x3b)
:    +func               -8547    0.263  __copy_to_user_ll+0xa (copy_to_user+0x46)
:    +func               -8547    0.139  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
:|   +begin   0x80000001 -8547    0.146  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
:|   #end     0x80000001 -8547    0.142  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
:    #func               -8547    0.127  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
:|   #begin   0x80000000 -8547    0.127  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
:|   +end     0x8000000d -8547    0.435  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
:    +func               -8546    0.150  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
:|   +begin   0x80000001 -8546    0.135  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
:|   +end     0x80000001 -8546    0.176  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
:    +func               -8546    0.131  sys_ioctl+0x14 (sysenter_past_esp+0x6c)
:    +func               -8546    0.135  fget_light+0x16 (sys_ioctl+0x27)
:    +func               -8545    0.165  dummy_file_ioctl+0x8 (sys_ioctl+0x3e)
:    +func               -8545    0.161  vfs_ioctl+0x14 (sys_ioctl+0x70)
:    +func               -8545    0.120  do_ioctl+0x14 (vfs_ioctl+0x5c)
:    +func               -8545    0.240  sock_ioctl+0x14 (do_ioctl+0x2d)
:    +func               -8545    0.127  sock_get_timestamp+0x16 (sock_ioctl+0xa8)
:    +func               -8545    0.116  copy_to_user+0xb (sock_get_timestamp+0x4c)
:    +func               -8544    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
:    +func               -8544    0.112  cond_resched+0x8 (copy_to_user+0x3b)
:    +func               -8544    0.172  __copy_to_user_ll+0xa (copy_to_user+0x46)
:    +func               -8544    0.127  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
:|   +begin   0x80000001 -8544    0.142  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
:|   #end     0x80000001 -8544    0.142  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
:    #func               -8544    0.127  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
:|   #begin   0x80000000 -8543    0.131  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
:|   +end     0x8000000d -8543    0.830  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
:    +func               -8543    0.123  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
:|   +begin   0x80000001 -8542    0.131  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
:|   +end     0x80000001 -8542    0.169  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
:    +func               -8542    0.112  sys_time+0xc (sysenter_past_esp+0x6c)
:    +func               -8542    0.146  do_gettimeofday+0xe (sys_time+0x17)
:    +func               -8542    0.214  read_tsc+0x8 (do_gettimeofday+0x38)
:    +func               -8542    0.123  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
:|   +begin   0x80000001 -8542    0.146  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
:|   #end     0x80000001 -8541    0.139  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
:    #func               -8541    0.131  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
:|   #begin   0x80000000 -8541    0.127  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
:|   +end     0x8000000d -8541    0.402  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
:    +func               -8541    0.135  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
:|   +begin   0x80000001 -8540    0.127  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
:|   +end     0x80000001 -8540    0.150  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
:    +func               -8540    0.146  sys_socketcall+0xc (sysenter_past_esp+0x6c)
:    +func               -8540    0.116  copy_from_user+0xb (sys_socketcall+0x36)
:    +func               -8540    0.120  ipipe_check_context+0x11 (copy_from_user+0x34)
:    +func               -8540    0.116  cond_resched+0x8 (copy_from_user+0x39)
:    +func               -8540    0.229  __copy_from_user_ll+0xa (copy_from_user+0x44)
:    +func               -8539    0.123  sys_recvfrom+0x11 (sys_socketcall+0x1bb)
:    +func               -8539    0.120  fget_light+0x16 (sys_recvfrom+0x1f)
:    +func               -8539    0.127  sock_from_file+0x11 (sys_recvfrom+0x38)
:    +func               -8539    0.161  sock_recvmsg+0x11 (sys_recvfrom+0x98)
:    +func               -8539    0.131  dummy_socket_recvmsg+0x8 (sock_recvmsg+0xda)
:    +func               -8539    0.161  skb_recv_datagram+0xe (packet_recvmsg+0x6b [af_packet])
:    +func               -8539    0.112  skb_dequeue+0x16 (skb_recv_datagram+0x146)
:    +func               -8538    0.112  _spin_lock_irqsave+0x12 (skb_dequeue+0x22)
:    +func               -8538    0.123  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func               -8538    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001 -8538    0.146  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001 -8538    0.135  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func               -8538    0.184  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func               -8538    0.116  _spin_unlock_irqrestore+0x8 (skb_dequeue+0x49)
:    #func               -8538    0.112  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func               -8537    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000 -8537    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000 -8537    0.127  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func               -8537    0.142  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func               -8537    0.127  prepare_to_wait_exclusive+0x14 (skb_recv_datagram+0xd9)
:    +func               -8537    0.112  _spin_lock_irqsave+0x12 (prepare_to_wait_exclusive+0x22)
:    +func               -8537    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func               -8537    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001 -8536    0.146  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001 -8536    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func               -8536    0.176  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func               -8536    0.116  _spin_unlock_irqrestore+0x8 (prepare_to_wait_exclusive+0x57)
:    #func               -8536    0.112  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func               -8536    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000 -8536    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000 -8535    0.127  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func               -8535    0.154  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func               -8535    0.116  schedule_timeout+0x11 (skb_recv_datagram+0x125)
:    +func               -8535    0.139  __sched_text_start+0xe (schedule_timeout+0x76)
:    +func               -8535    0.123  ipipe_check_context+0x11 (__sched_text_start+0x18)
:    +func               -8535    0.123  ipipe_check_context+0x11 (__sched_text_start+0x66)
:    +func               -8535    0.172  sched_clock+0x12 (__sched_text_start+0xa5)
:    +func               -8534    0.112  _spin_lock_irq+0x9 (__sched_text_start+0x11b)
:    +func               -8534    0.123  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
:    +func               -8534    0.123  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
:|   +begin   0x80000001 -8534    0.146  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
:|   #end     0x80000001 -8534    0.131  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
:    #func               -8534    0.199  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
:    #func               -8534    0.150  deactivate_task+0x9 (__sched_text_start+0x4ad)
:    #func               -8534    0.169  dequeue_task+0x12 (deactivate_task+0x1f)
:    #func               -8533    0.187  find_busiest_group+0xe (__sched_text_start+0x878)
:    #func               -8533    0.116  __first_cpu+0x8 (find_busiest_group+0x375)
:    #func               -8533    0.135  __first_cpu+0x8 (find_busiest_group+0xe5)
:    #func               -8533    0.146  idle_cpu+0x8 (find_busiest_group+0x18c)
:    #func               -8533    0.116  __next_cpu+0x9 (find_busiest_group+0x13b)
:    #func               -8533    0.191  find_next_bit+0xe (__next_cpu+0x1a)
:    #func               -8532    0.157  __first_cpu+0x8 (find_busiest_group+0xe5)
:    #func               -8532    0.116  __next_cpu+0x9 (find_busiest_group+0x13b)
:    #func               -8532    0.326  find_next_bit+0xe (__next_cpu+0x1a)
:|   #begin   0x80000000 -8532    0.176  __sched_text_start+0x5a1 (schedule_timeout+0x76)
:|   #func               -8532    0.210  __switch_to+0xe (__sched_text_start+0x423)
:|   #end     0x80000000 -8531    0.142  __sched_text_start+0x590 (cpu_idle+0xa1)
:    #func               -8531    0.127  __ipipe_unstall_root+0x8 (__sched_text_start+0x4dc)
:|   #begin   0x80000000 -8531    0.139  __ipipe_unstall_root+0x53 (__sched_text_start+0x4dc)
:|   +end     0x80000000 -8531    0.127  __ipipe_unstall_root+0x45 (__sched_text_start+0x4dc)
:    +func               -8531    0.139  ipipe_check_context+0x11 (__sched_text_start+0x513)
:    +func               -8531    0.157  ipipe_check_context+0x11 (cpu_idle+0xab)
:    +func               -8531    0.127  ipipe_suspend_domain+0xe (cpu_idle+0x82)
:|   +begin   0x80000001 -8530    0.131  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
:|   +end     0x80000001 -8530    0.135  ipipe_suspend_domain+0xef (cpu_idle+0x82)
:    +func               -8530    0.108  mwait_idle+0x8 (cpu_idle+0x84)
:    +func               -8530    0.127  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
:|   +begin   0x80000000 -8530    0.131  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
:|   +end     0x80000000 -8530    0.127  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
:    +func               -8530! 2429.240  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
:|   +begin   0xffffffef -6100    0.154  common_interrupt+0x29 (mwait_idle_with_hints+0x4e)
:|   +func               -6100    0.225  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
:|   +func               -6100    0.131  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0x1e4)
:|   +func               -6100    0.154  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
:|   +func               -6100    0.187  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|   +func               -6100    0.146  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
:|   #end     0x80000000 -6099    0.169  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
:    #func               -6099    0.157  do_IRQ+0xd (__ipipe_sync_stage+0x1a8)
:    #func               -6099    0.123  handle_fasteoi_irq+0x14 (do_IRQ+0x47)
:    #func               -6099    0.135  _spin_lock+0x9 (handle_fasteoi_irq+0x2a)
:    #func               -6099    0.199  ipipe_check_context+0x11 (_spin_lock+0x15)
:    #func               -6099    0.154  handle_IRQ_event+0xe (handle_fasteoi_irq+0x76)
:    #func               -6099    0.142  __ipipe_unstall_root+0x8 (handle_IRQ_event+0x6d)
:|   #begin   0x80000000 -6098    0.135  __ipipe_unstall_root+0x53 (handle_IRQ_event+0x6d)
:|   +end     0x80000000 -6098    0.488  __ipipe_unstall_root+0x45 (handle_IRQ_event+0x6d)
:    +func               -6098    0.150  __wake_up+0x14 (i915_driver_irq_handler+0xbc [i915])
:    +func               -6098    0.112  _spin_lock_irqsave+0x12 (__wake_up+0x20)
:    +func               -6098    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func               -6097    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001 -6097    0.146  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001 -6097    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func               -6097    0.157  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func               -6097    0.142  __wake_up_common+0xe (__wake_up+0x3c)
:    #func               -6097    0.127  _spin_unlock_irqrestore+0x8 (__wake_up+0x45)
:    #func               -6097    0.127  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func               -6096    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000 -6096    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000 -6096    0.127  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func               -6096    0.131  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func               -6096    0.112  _spin_lock_irqsave+0x12 (drm_vbl_send_signals+0x17 [drm])
:    +func               -6096    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func               -6096    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001 -6096    0.146  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001 -6095    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func               -6095    0.176  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func               -6095    0.123  _spin_unlock_irqrestore+0x8 (i915_driver_irq_handler+0xc3 [i915])
:    #func               -6095    0.127  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func               -6095    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000 -6095    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000 -6095    0.127  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func               -6094    0.131  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func               -6094    0.146  ipipe_check_context+0x11 (handle_IRQ_event+0x59)
:    +func               -6094    0.123  __ipipe_stall_root+0x12 (handle_IRQ_event+0x5e)
:|   +begin   0x80000001 -6094    0.146  __ipipe_stall_root+0x5b (handle_IRQ_event+0x5e)
:|   #end     0x80000001 -6094    0.135  __ipipe_stall_root+0x41 (handle_IRQ_event+0x5e)
:    #func               -6094    0.146  note_interrupt+0x14 (handle_fasteoi_irq+0xb3)
:    #func               -6094    0.135  _spin_lock+0x9 (handle_fasteoi_irq+0x88)
:    #func               -6094    0.187  ipipe_check_context+0x11 (_spin_lock+0x15)
:    #func               -6093    0.187  ack_ioapic_quirk_irq+0x9 (handle_fasteoi_irq+0x97)
:    #func               -6093    0.139  irq_exit+0x8 (do_IRQ+0x4c)
:    #func               -6093    0.184  ipipe_check_context+0x11 (irq_exit+0x43)
:    #func               -6093    0.176  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   #begin   0x80000000 -6093    0.161  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -6092    0.304  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:|   #end     0xffffffef -6092    0.150  common_interrupt+0x38 (mwait_idle_with_hints+0x4e)
:|   #func               -6092    0.139  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -6092    0.300  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:    +func               -6092    0.139  ipipe_suspend_domain+0xe (cpu_idle+0x82)
:|   +begin   0x80000001 -6091    0.142  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
:|   +end     0x80000001 -6091    0.131  ipipe_suspend_domain+0xef (cpu_idle+0x82)
:    +func               -6091    0.108  mwait_idle+0x8 (cpu_idle+0x84)
:    +func               -6091    0.135  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
:|   +begin   0x80000000 -6091    0.142  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
:|   +end     0x80000000 -6091    0.135  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
:    +func               -6091!  36.525  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
:|   +begin   0xffffffff -6054    0.154  common_interrupt+0x29 (mwait_idle_with_hints+0x4e)
:|   +func               -6054    0.161  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
:|   +func               -6054    0.120  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0x1e4)
:|   +func               -6054    0.135  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
:|   +func               -6054    0.120  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|   +func               -6053    0.139  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
:|   #end     0x80000000 -6053    0.154  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
:    #func               -6053    0.161  do_IRQ+0xd (__ipipe_sync_stage+0x1a8)
:    #func               -6053    0.112  handle_fasteoi_irq+0x14 (do_IRQ+0x47)
:    #func               -6053    0.112  _spin_lock+0x9 (handle_fasteoi_irq+0x2a)
:    #func               -6053    0.161  ipipe_check_context+0x11 (_spin_lock+0x15)
:    #func               -6053    0.157  handle_IRQ_event+0xe (handle_fasteoi_irq+0x76)
:    #func               -6052    0.139  timer_interrupt+0xa (handle_IRQ_event+0x31)
:    #func               -6052    0.112  _spin_lock+0x9 (timer_interrupt+0x14)
:    #func               -6052    0.176  ipipe_check_context+0x11 (_spin_lock+0x15)
:|   #begin   0x80000001 -6052+   2.070  timer_interrupt+0xd2 (handle_IRQ_event+0x31)
:|   #end     0x80000001 -6050    0.176  timer_interrupt+0xc5 (handle_IRQ_event+0x31)
:    #func               -6050    0.120  do_timer+0xe (timer_interrupt+0x6a)
:    #func               -6050    0.225  read_tsc+0x8 (do_timer+0x38)
:    #func               -6049    0.270  current_tick_length+0x8 (do_timer+0x101)
:    #func               -6049    0.112  clocksource_get_next+0x8 (do_timer+0x232)
:    #func               -6049    0.131  _spin_lock_irqsave+0x12 (clocksource_get_next+0x12)
:    #func               -6049    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    #func               -6049    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   #begin   0x80000001 -6049    0.161  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001 -6048    0.135  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func               -6048    0.169  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func               -6048    0.131  _spin_unlock_irqrestore+0x8 (clocksource_get_next+0x42)
:    #func               -6048    0.127  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x1a)
:    #func               -6048    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -6048    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -6048    0.131  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -6048    0.131  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x24)
:    #func               -6047    0.157  tsc_update_callback+0x14 (do_timer+0x480)
:    #func               -6047    0.142  smp_send_timer_broadcast_ipi+0x8 (timer_interrupt+0xa6)
:    #func               -6047    0.116  rthal_broadcast_to_local_timers+0x8 (handle_IRQ_event+0x31)
:    #func               -6047    0.131  send_IPI_mask_bitmask+0xe (rthal_broadcast_to_local_timers+0x20)
:|   #begin   0x80000001 -6047    0.184  send_IPI_mask_bitmask+0x80 (rthal_broadcast_to_local_timers+0x20)
:|   #end     0x80000001 -6047    0.383  send_IPI_mask_bitmask+0x6b (rthal_broadcast_to_local_timers+0x20)
:|   #begin   0xffffff1f -6046    0.142  apic_timer_interrupt+0x2e (send_IPI_mask_bitmask+0x6d)
:|   #func               -6046    0.229  __ipipe_handle_irq+0xe (apic_timer_interrupt+0x33)
:|   #func               -6046    0.135  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0x1e4)
:|   #func               -6046    0.123  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|   #end     0xffffff1f -6046    0.300  apic_timer_interrupt+0x3d (send_IPI_mask_bitmask+0x6d)
:    #func               -6045    0.120  ipipe_check_context+0x11 (handle_IRQ_event+0x59)
:    #func               -6045    0.127  __ipipe_stall_root+0x12 (handle_IRQ_event+0x5e)
:|   #begin   0x80000001 -6045    0.154  __ipipe_stall_root+0x5b (handle_IRQ_event+0x5e)
:|   #end     0x80000001 -6045    0.150  __ipipe_stall_root+0x41 (handle_IRQ_event+0x5e)
:    #func               -6045    0.139  note_interrupt+0x14 (handle_fasteoi_irq+0xb3)
:    #func               -6045    0.112  _spin_lock+0x9 (handle_fasteoi_irq+0x88)
:    #func               -6045    0.150  ipipe_check_context+0x11 (_spin_lock+0x15)
:    #func               -6044    0.139  ack_apic+0x8 (handle_fasteoi_irq+0x97)
:    #func               -6044    0.123  irq_exit+0x8 (do_IRQ+0x4c)
:    #func               -6044    0.139  ipipe_check_context+0x11 (irq_exit+0x43)
:    #func               -6044    0.127  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   #begin   0x80000000 -6044    0.240  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -6044    0.319  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:|   #end     0x80000000 -6043    0.184  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
:    #func               -6043    0.191  smp_apic_timer_interrupt+0x9 (__ipipe_sync_stage+0x1a8)
:    #func               -6043    0.142  profile_tick+0x12 (smp_apic_timer_interrupt+0x45)
:    #func               -6043    0.139  profile_pc+0x12 (profile_tick+0x57)
:    #func               -6043    0.161  in_lock_functions+0x8 (profile_pc+0x47)
:    #func               -6042    0.146  update_process_times+0x16 (smp_apic_timer_interrupt+0x70)
:    #func               -6042    0.195  account_system_time+0x14 (update_process_times+0x81)
:    #func               -6042    0.135  run_local_timers+0x8 (update_process_times+0x3b)
:    #func               -6042    0.120  raise_softirq+0x16 (run_local_timers+0x12)
:    #func               -6042    0.123  ipipe_check_context+0x11 (raise_softirq+0x24)
:    #func               -6042    0.131  __ipipe_test_and_stall_root+0x16 (raise_softirq+0x29)
:|   #begin   0x80000001 -6042    0.202  __ipipe_test_and_stall_root+0x6b (raise_softirq+0x29)
:|   #end     0x80000001 -6041    0.146  __ipipe_test_and_stall_root+0x47 (raise_softirq+0x29)
:    #func               -6041    0.116  __ipipe_restore_root+0x8 (raise_softirq+0x87)
:    #func               -6041    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -6041    0.255  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -6041    0.142  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -6041    0.165  softlockup_tick+0x14 (run_local_timers+0x17)
:    #func               -6040    0.116  rcu_pending+0x9 (update_process_times+0x42)
:    #func               -6040    0.180  __rcu_pending+0x8 (rcu_pending+0x21)
:    #func               -6040    0.150  __rcu_pending+0x8 (rcu_pending+0x42)
:    #func               -6040    0.112  scheduler_tick+0xe (update_process_times+0x54)
:    #func               -6040    0.236  sched_clock+0x12 (scheduler_tick+0x18)
:    #func               -6040    0.131  raise_softirq+0x16 (scheduler_tick+0xb7)
:    #func               -6040    0.176  ipipe_check_context+0x11 (raise_softirq+0x24)
:    #func               -6039    0.131  __ipipe_test_and_stall_root+0x16 (raise_softirq+0x29)
:|   #begin   0x80000001 -6039    0.157  __ipipe_test_and_stall_root+0x6b (raise_softirq+0x29)
:|   #end     0x80000001 -6039    0.202  __ipipe_test_and_stall_root+0x47 (raise_softirq+0x29)
:    #func               -6039    0.127  __ipipe_restore_root+0x8 (raise_softirq+0x87)
:    #func               -6039    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -6039    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -6038    0.154  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -6038    0.142  run_posix_cpu_timers+0xe (update_process_times+0x5b)
:    #func               -6038    0.127  __ipipe_test_root+0x12 (run_posix_cpu_timers+0x21)
:|   #begin   0x80000001 -6038    0.146  __ipipe_test_root+0x4b (run_posix_cpu_timers+0x21)
:|   #end     0x80000001 -6038    0.214  __ipipe_test_root+0x6a (run_posix_cpu_timers+0x21)
:    #func               -6038    0.154  irq_exit+0x8 (smp_apic_timer_interrupt+0x75)
:    #func               -6038    0.116  do_softirq+0x12 (irq_exit+0x4a)
:    #func               -6037    0.120  ipipe_check_context+0x11 (do_softirq+0x3c)
:    #func               -6037    0.187  __ipipe_test_and_stall_root+0x16 (do_softirq+0x41)
:|   #begin   0x80000001 -6037    0.169  __ipipe_test_and_stall_root+0x6b (do_softirq+0x41)
:|   #end     0x80000001 -6037    0.139  __ipipe_test_and_stall_root+0x47 (do_softirq+0x41)
:    #func               -6037    0.142  __do_softirq+0xe (do_softirq+0x78)
:    #func               -6037    0.127  __ipipe_unstall_root+0x8 (__do_softirq+0x6c)
:|   #begin   0x80000000 -6037    0.135  __ipipe_unstall_root+0x53 (__do_softirq+0x6c)
:|   +end     0x80000000 -6036    0.154  __ipipe_unstall_root+0x45 (__do_softirq+0x6c)
:    +func               -6036    0.131  run_timer_softirq+0xe (__do_softirq+0x83)
:    +func               -6036    0.165  hrtimer_run_queues+0xe (run_timer_softirq+0x29)
:    +func               -6036    0.131  _spin_lock_irq+0x9 (hrtimer_run_queues+0xd7)
:    +func               -6036    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
:    +func               -6036    0.123  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
:|   +begin   0x80000001 -6036    0.146  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
:|   #end     0x80000001 -6035    0.202  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
:    #func               -6035    0.176  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
:    #func               -6035    0.251  __ipipe_unstall_root+0x8 (hrtimer_run_queues+0x102)
:|   #begin   0x80000000 -6035    0.135  __ipipe_unstall_root+0x53 (hrtimer_run_queues+0x102)
:|   +end     0x80000000 -6035    0.135  __ipipe_unstall_root+0x45 (hrtimer_run_queues+0x102)
:    +func               -6034    0.112  _spin_lock_irq+0x9 (run_timer_softirq+0x3e)
:    +func               -6034    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
:    +func               -6034    0.180  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
:|   +begin   0x80000001 -6034    0.146  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
:|   #end     0x80000001 -6034    0.127  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
:    #func               -6034    0.202  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
:    #func               -6034    0.195  __ipipe_unstall_root+0x8 (run_timer_softirq+0x169)
:|   #begin   0x80000000 -6033    0.135  __ipipe_unstall_root+0x53 (run_timer_softirq+0x169)
:|   +end     0x80000000 -6033    0.161  __ipipe_unstall_root+0x45 (run_timer_softirq+0x169)
:    +func               -6033    0.240  run_rebalance_domains+0xe (__do_softirq+0x83)
:    +func               -6033    0.139  find_busiest_group+0xe (run_rebalance_domains+0x155)
:    +func               -6033    0.131  __first_cpu+0x8 (find_busiest_group+0x375)
:    +func               -6033    0.127  __first_cpu+0x8 (find_busiest_group+0xe5)
:    +func               -6032    0.150  idle_cpu+0x8 (find_busiest_group+0x18c)
:    +func               -6032    0.116  __next_cpu+0x9 (find_busiest_group+0x13b)
:    +func               -6032    0.225  find_next_bit+0xe (__next_cpu+0x1a)
:    +func               -6032    0.247  __first_cpu+0x8 (find_busiest_group+0xe5)
:    +func               -6032    0.131  __next_cpu+0x9 (find_busiest_group+0x13b)
:    +func               -6032    0.210  find_next_bit+0xe (__next_cpu+0x1a)
:    +func               -6031    0.229  ipipe_check_context+0x11 (__do_softirq+0xaa)
:    +func               -6031    0.139  __ipipe_stall_root+0x12 (__do_softirq+0xaf)
:|   +begin   0x80000001 -6031    0.176  __ipipe_stall_root+0x5b (__do_softirq+0xaf)
:|   #end     0x80000001 -6031    0.150  __ipipe_stall_root+0x41 (__do_softirq+0xaf)
:    #func               -6031    0.142  _local_bh_enable+0xb (__do_softirq+0xe2)
:    #func               -6031    0.131  __ipipe_test_root+0x12 (_local_bh_enable+0x20)
:|   #begin   0x80000001 -6030    0.142  __ipipe_test_root+0x4b (_local_bh_enable+0x20)
:|   #end     0x80000001 -6030    0.157  __ipipe_test_root+0x6a (_local_bh_enable+0x20)
:    #func               -6030    0.131  __ipipe_restore_root+0x8 (do_softirq+0x68)
:    #func               -6030    0.131  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -6030    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -6030    0.150  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -6030    0.169  ipipe_check_context+0x11 (irq_exit+0x54)
:    #func               -6029    0.131  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   #begin   0x80000000 -6029    0.146  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -6029    0.319  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:|   #end     0xffffffff -6029    0.131  common_interrupt+0x38 (mwait_idle_with_hints+0x4e)
:|   #func               -6029    0.120  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -6029    0.341  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:    +func               -6028    0.127  ipipe_suspend_domain+0xe (cpu_idle+0x82)
:|   +begin   0x80000001 -6028    0.131  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
:|   +end     0x80000001 -6028    0.135  ipipe_suspend_domain+0xef (cpu_idle+0x82)
:    +func               -6028    0.108  mwait_idle+0x8 (cpu_idle+0x84)
:    +func               -6028    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
:|   +begin   0x80000000 -6028    0.142  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
:|   +end     0x80000000 -6027    0.131  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
:    +func               -6027! 3971.307  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
:|   +begin   0xffffffff -2056    0.139  common_interrupt+0x29 (mwait_idle_with_hints+0x4e)
:|   +func               -2056    0.187  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
:|   +func               -2056    0.127  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0x1e4)
:|   +func               -2056    0.123  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
:|   +func               -2055    0.150  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|   +func               -2055    0.139  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
:|   #end     0x80000000 -2055    0.165  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
:    #func               -2055    0.142  do_IRQ+0xd (__ipipe_sync_stage+0x1a8)
:    #func               -2055    0.116  handle_fasteoi_irq+0x14 (do_IRQ+0x47)
:    #func               -2055    0.112  _spin_lock+0x9 (handle_fasteoi_irq+0x2a)
:    #func               -2055    0.161  ipipe_check_context+0x11 (_spin_lock+0x15)
:    #func               -2054    0.120  handle_IRQ_event+0xe (handle_fasteoi_irq+0x76)
:    #func               -2054    0.112  timer_interrupt+0xa (handle_IRQ_event+0x31)
:    #func               -2054    0.116  _spin_lock+0x9 (timer_interrupt+0x14)
:    #func               -2054    0.172  ipipe_check_context+0x11 (_spin_lock+0x15)
:|   #begin   0x80000001 -2054+   2.077  timer_interrupt+0xd2 (handle_IRQ_event+0x31)
:|   #end     0x80000001 -2052    0.142  timer_interrupt+0xc5 (handle_IRQ_event+0x31)
:    #func               -2052    0.120  do_timer+0xe (timer_interrupt+0x6a)
:    #func               -2052    0.180  read_tsc+0x8 (do_timer+0x38)
:    #func               -2051    0.191  current_tick_length+0x8 (do_timer+0x101)
:    #func               -2051    0.131  clocksource_get_next+0x8 (do_timer+0x232)
:    #func               -2051    0.116  _spin_lock_irqsave+0x12 (clocksource_get_next+0x12)
:    #func               -2051    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    #func               -2051    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   #begin   0x80000001 -2051    0.150  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001 -2051    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func               -2050    0.154  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func               -2050    0.112  _spin_unlock_irqrestore+0x8 (clocksource_get_next+0x42)
:    #func               -2050    0.120  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x1a)
:    #func               -2050    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -2050    0.154  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -2050    0.127  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -2050    0.123  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x24)
:    #func               -2049    0.123  tsc_update_callback+0x14 (do_timer+0x480)
:    #func               -2049    0.120  smp_send_timer_broadcast_ipi+0x8 (timer_interrupt+0xa6)
:    #func               -2049    0.116  rthal_broadcast_to_local_timers+0x8 (handle_IRQ_event+0x31)
:    #func               -2049    0.123  send_IPI_mask_bitmask+0xe (rthal_broadcast_to_local_timers+0x20)
:|   #begin   0x80000001 -2049    0.161  send_IPI_mask_bitmask+0x80 (rthal_broadcast_to_local_timers+0x20)
:|   #end     0x80000001 -2049    0.368  send_IPI_mask_bitmask+0x6b (rthal_broadcast_to_local_timers+0x20)
:|   #begin   0xffffff1f -2048    0.139  apic_timer_interrupt+0x2e (send_IPI_mask_bitmask+0x6d)
:|   #func               -2048    0.221  __ipipe_handle_irq+0xe (apic_timer_interrupt+0x33)
:|   #func               -2048    0.135  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0x1e4)
:|   #func               -2048    0.123  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|   #end     0xffffff1f -2048    0.300  apic_timer_interrupt+0x3d (send_IPI_mask_bitmask+0x6d)
:    #func               -2048    0.120  ipipe_check_context+0x11 (handle_IRQ_event+0x59)
:    #func               -2047    0.127  __ipipe_stall_root+0x12 (handle_IRQ_event+0x5e)
:|   #begin   0x80000001 -2047    0.165  __ipipe_stall_root+0x5b (handle_IRQ_event+0x5e)
:|   #end     0x80000001 -2047    0.150  __ipipe_stall_root+0x41 (handle_IRQ_event+0x5e)
:    #func               -2047    0.123  note_interrupt+0x14 (handle_fasteoi_irq+0xb3)
:    #func               -2047    0.116  _spin_lock+0x9 (handle_fasteoi_irq+0x88)
:    #func               -2047    0.150  ipipe_check_context+0x11 (_spin_lock+0x15)
:    #func               -2047    0.120  ack_apic+0x8 (handle_fasteoi_irq+0x97)
:    #func               -2046    0.120  irq_exit+0x8 (do_IRQ+0x4c)
:    #func               -2046    0.123  ipipe_check_context+0x11 (irq_exit+0x43)
:    #func               -2046    0.127  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   #begin   0x80000000 -2046    0.131  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -2046    0.356  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:|   #end     0x80000000 -2046    0.176  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
:    #func               -2045    0.172  smp_apic_timer_interrupt+0x9 (__ipipe_sync_stage+0x1a8)
:    #func               -2045    0.120  profile_tick+0x12 (smp_apic_timer_interrupt+0x45)
:    #func               -2045    0.135  profile_pc+0x12 (profile_tick+0x57)
:    #func               -2045    0.123  in_lock_functions+0x8 (profile_pc+0x47)
:    #func               -2045    0.116  update_process_times+0x16 (smp_apic_timer_interrupt+0x70)
:    #func               -2045    0.139  account_system_time+0x14 (update_process_times+0x81)
:    #func               -2045    0.131  run_local_timers+0x8 (update_process_times+0x3b)
:    #func               -2045    0.116  raise_softirq+0x16 (run_local_timers+0x12)
:    #func               -2044    0.120  ipipe_check_context+0x11 (raise_softirq+0x24)
:    #func               -2044    0.127  __ipipe_test_and_stall_root+0x16 (raise_softirq+0x29)
:|   #begin   0x80000001 -2044    0.169  __ipipe_test_and_stall_root+0x6b (raise_softirq+0x29)
:|   #end     0x80000001 -2044    0.135  __ipipe_test_and_stall_root+0x47 (raise_softirq+0x29)
:    #func               -2044    0.172  __ipipe_restore_root+0x8 (raise_softirq+0x87)
:    #func               -2044    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -2044    0.165  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -2043    0.131  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -2043    0.184  softlockup_tick+0x14 (run_local_timers+0x17)
:    #func               -2043    0.112  rcu_pending+0x9 (update_process_times+0x42)
:    #func               -2043    0.116  __rcu_pending+0x8 (rcu_pending+0x21)
:    #func               -2043    0.135  __rcu_pending+0x8 (rcu_pending+0x42)
:    #func               -2043    0.187  scheduler_tick+0xe (update_process_times+0x54)
:    #func               -2043    0.240  sched_clock+0x12 (scheduler_tick+0x18)
:    #func               -2042    0.120  raise_softirq+0x16 (scheduler_tick+0xb7)
:    #func               -2042    0.123  ipipe_check_context+0x11 (raise_softirq+0x24)
:    #func               -2042    0.123  __ipipe_test_and_stall_root+0x16 (raise_softirq+0x29)
:|   #begin   0x80000001 -2042    0.244  __ipipe_test_and_stall_root+0x6b (raise_softirq+0x29)
:|   #end     0x80000001 -2042    0.135  __ipipe_test_and_stall_root+0x47 (raise_softirq+0x29)
:    #func               -2042    0.120  __ipipe_restore_root+0x8 (raise_softirq+0x87)
:    #func               -2041    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -2041    0.251  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -2041    0.154  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -2041    0.142  run_posix_cpu_timers+0xe (update_process_times+0x5b)
:    #func               -2041    0.131  __ipipe_test_root+0x12 (run_posix_cpu_timers+0x21)
:|   #begin   0x80000001 -2041    0.127  __ipipe_test_root+0x4b (run_posix_cpu_timers+0x21)
:|   #end     0x80000001 -2040    0.154  __ipipe_test_root+0x6a (run_posix_cpu_timers+0x21)
:    #func               -2040    0.123  irq_exit+0x8 (smp_apic_timer_interrupt+0x75)
:    #func               -2040    0.116  do_softirq+0x12 (irq_exit+0x4a)
:    #func               -2040    0.176  ipipe_check_context+0x11 (do_softirq+0x3c)
:    #func               -2040    0.123  __ipipe_test_and_stall_root+0x16 (do_softirq+0x41)
:|   #begin   0x80000001 -2040    0.165  __ipipe_test_and_stall_root+0x6b (do_softirq+0x41)
:|   #end     0x80000001 -2040    0.135  __ipipe_test_and_stall_root+0x47 (do_softirq+0x41)
:    #func               -2039    0.120  __do_softirq+0xe (do_softirq+0x78)
:    #func               -2039    0.180  __ipipe_unstall_root+0x8 (__do_softirq+0x6c)
:|   #begin   0x80000000 -2039    0.135  __ipipe_unstall_root+0x53 (__do_softirq+0x6c)
:|   +end     0x80000000 -2039    0.131  __ipipe_unstall_root+0x45 (__do_softirq+0x6c)
:    +func               -2039    0.116  run_timer_softirq+0xe (__do_softirq+0x83)
:    +func               -2039    0.157  hrtimer_run_queues+0xe (run_timer_softirq+0x29)
:    +func               -2039    0.131  _spin_lock_irq+0x9 (hrtimer_run_queues+0xd7)
:    +func               -2038    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
:    +func               -2038    0.127  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
:|   +begin   0x80000001 -2038    0.142  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
:|   #end     0x80000001 -2038    0.131  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
:    #func               -2038    0.154  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
:    #func               -2038    0.161  __ipipe_unstall_root+0x8 (hrtimer_run_queues+0x102)
:|   #begin   0x80000000 -2038    0.135  __ipipe_unstall_root+0x53 (hrtimer_run_queues+0x102)
:|   +end     0x80000000 -2038    0.127  __ipipe_unstall_root+0x45 (hrtimer_run_queues+0x102)
:    +func               -2037    0.112  _spin_lock_irq+0x9 (run_timer_softirq+0x3e)
:    +func               -2037    0.123  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
:    +func               -2037    0.180  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
:|   +begin   0x80000001 -2037    0.150  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
:|   #end     0x80000001 -2037    0.131  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
:    #func               -2037    0.161  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
:    #func               -2037    0.180  __ipipe_unstall_root+0x8 (run_timer_softirq+0x169)
:|   #begin   0x80000000 -2036    0.139  __ipipe_unstall_root+0x53 (run_timer_softirq+0x169)
:|   +end     0x80000000 -2036    0.135  __ipipe_unstall_root+0x45 (run_timer_softirq+0x169)
:    +func               -2036    0.191  run_rebalance_domains+0xe (__do_softirq+0x83)
:    +func               -2036    0.206  find_busiest_group+0xe (run_rebalance_domains+0x155)
:    +func               -2036    0.131  __first_cpu+0x8 (find_busiest_group+0x375)
:    +func               -2036    0.127  __first_cpu+0x8 (find_busiest_group+0xe5)
:    +func               -2035    0.142  idle_cpu+0x8 (find_busiest_group+0x18c)
:    +func               -2035    0.172  __next_cpu+0x9 (find_busiest_group+0x13b)
:    +func               -2035    0.206  find_next_bit+0xe (__next_cpu+0x1a)
:    +func               -2035    0.187  __first_cpu+0x8 (find_busiest_group+0xe5)
:    +func               -2035    0.131  __next_cpu+0x9 (find_busiest_group+0x13b)
:    +func               -2035    0.187  find_next_bit+0xe (__next_cpu+0x1a)
:    +func               -2034    0.146  ipipe_check_context+0x11 (__do_softirq+0xaa)
:    +func               -2034    0.127  __ipipe_stall_root+0x12 (__do_softirq+0xaf)
:|   +begin   0x80000001 -2034    0.195  __ipipe_stall_root+0x5b (__do_softirq+0xaf)
:|   #end     0x80000001 -2034    0.135  __ipipe_stall_root+0x41 (__do_softirq+0xaf)
:    #func               -2034    0.139  _local_bh_enable+0xb (__do_softirq+0xe2)
:    #func               -2034    0.187  __ipipe_test_root+0x12 (_local_bh_enable+0x20)
:|   #begin   0x80000001 -2033    0.127  __ipipe_test_root+0x4b (_local_bh_enable+0x20)
:|   #end     0x80000001 -2033    0.157  __ipipe_test_root+0x6a (_local_bh_enable+0x20)
:    #func               -2033    0.116  __ipipe_restore_root+0x8 (do_softirq+0x68)
:    #func               -2033    0.131  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001 -2033    0.146  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001 -2033    0.154  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func               -2033    0.169  ipipe_check_context+0x11 (irq_exit+0x54)
:    #func               -2032    0.131  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   #begin   0x80000000 -2032    0.131  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -2032    0.319  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:|   #end     0xffffffff -2032    0.131  common_interrupt+0x38 (mwait_idle_with_hints+0x4e)
:|   #func               -2032    0.120  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d -2032    0.323  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:    +func               -2031    0.127  ipipe_suspend_domain+0xe (cpu_idle+0x82)
:|   +begin   0x80000001 -2031    0.131  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
:|   +end     0x80000001 -2031    0.135  ipipe_suspend_domain+0xef (cpu_idle+0x82)
:    +func               -2031    0.108  mwait_idle+0x8 (cpu_idle+0x84)
:    +func               -2031    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
:|   +begin   0x80000000 -2031    0.135  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
:|   +end     0x80000000 -2031    0.131  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
:    +func               -2030! 1567.590  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
:|   +begin   0xffffff16  -463    0.139  ipipe_ipi3+0x2e (mwait_idle_with_hints+0x4e)
:|   +func                -463    0.172  __ipipe_handle_irq+0xe (ipipe_ipi3+0x33)
:|   +func                -463    0.120  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0xe7)
:|   +func                -462    0.146  __ipipe_dispatch_wired+0x14 (__ipipe_handle_irq+0x7d)
:|  # func                -462    0.120  xnintr_clock_handler+0x8 (__ipipe_dispatch_wired+0xbe)
:|  # func                -462    0.255  xnintr_irq_handler+0xe (xnintr_clock_handler+0x17)
:|  # func                -462    0.191  xnpod_announce_tick+0x8 (xnintr_irq_handler+0xa6)
:|  # func                -462    0.202  xntimer_do_tick_aperiodic+0xe (xnpod_announce_tick+0x44)
:|  # func                -461    0.131  xnthread_timeout_handler+0x8 (xntimer_do_tick_aperiodic+0x222)
:|  # func                -461    0.135  xnpod_resume_thread+0xe (xnthread_timeout_handler+0x1e)
:|  # [   -1] -<?>-   99  -461    0.278  xnpod_resume_thread+0x7e (xnthread_timeout_handler+0x1e)
:|  # func                -461    0.184  xnpod_schedule+0xe (xnintr_irq_handler+0x1f5)
:|  # [    0] -<?>-   -1  -461    0.665  xnpod_schedule+0x503 (xnintr_irq_handler+0x1f5)
:|  # [   -1] -<?>-   99  -460    0.232  xnpod_schedule+0x327 (xnpod_suspend_thread+0x257)
:|  # func                -460    0.142  __ipipe_restore_pipeline_head+0x11 (rtdm_task_sleep_until+0xec)
:|  + end     0x80000000  -460    0.176  __ipipe_restore_pipeline_head+0x96 (rtdm_task_sleep_until+0xec)
:|  + begin   0x80000000  -460    0.184  tdma_worker+0x785 [tdma] (xnarch_thread_redirect+0x25)
:|  # func                -459    0.139  __ipipe_restore_pipeline_head+0x11 (tdma_worker+0x775 [tdma])
:|  + end     0x80000000  -459    0.139  __ipipe_restore_pipeline_head+0x96 (tdma_worker+0x775 [tdma])
:   + func                -459    0.131  tdma_xmit_sync_frame+0xe [tdma] (tdma_worker+0x467 [tdma])
:   + func                -459    0.123  alloc_rtskb+0xb [rtnet] (tdma_xmit_sync_frame+0x25 [tdma])
:|  + begin   0x80000000  -459    0.255  alloc_rtskb+0xcb [rtnet] (tdma_xmit_sync_frame+0x25 [tdma])
:|  # func                -459    0.139  __ipipe_restore_pipeline_head+0x11 (alloc_rtskb+0xd7 [rtnet])
:|  + end     0x80000000  -458    0.247  __ipipe_restore_pipeline_head+0x96 (alloc_rtskb+0xd7 [rtnet])
:   + func                -458    0.232  rt_eth_header+0x14 [rtnet] (tdma_xmit_sync_frame+0x93 [tdma])
:   + func                -458    0.157  rtcap_xmit_hook+0xe [rtcap] (tdma_xmit_sync_frame+0x119 [tdma])
:|  + begin   0x80000000  -458    0.270  rtcap_xmit_hook+0x191 [rtcap] (tdma_xmit_sync_frame+0x119 [tdma])
:|  # func                -457    0.146  __ipipe_restore_pipeline_head+0x11 (rtcap_xmit_hook+0x19d [rtcap])
:|  + end     0x80000000  -457    0.131  __ipipe_restore_pipeline_head+0x96 (rtcap_xmit_hook+0x19d [rtcap])
:   + func                -457    0.232  xnpod_get_time+0x14 (rtcap_xmit_hook+0xd6 [rtcap])
:|  + begin   0x80000000  -457    0.191  rtcap_xmit_hook+0x1db [rtcap] (tdma_xmit_sync_frame+0x119 [tdma])
:|  # func                -457    0.146  __ipipe_restore_pipeline_head+0x11 (rtcap_xmit_hook+0x1c9 [rtcap])
:|  + end     0x80000000  -457    0.142  __ipipe_restore_pipeline_head+0x96 (rtcap_xmit_hook+0x1c9 [rtcap])
:   + func                -457    0.135  ipipe_trigger_irq+0xd (rtcap_xmit_hook+0x173 [rtcap])
:|  + begin   0x80000001  -456    0.157  ipipe_trigger_irq+0x3f (rtcap_xmit_hook+0x173 [rtcap])
:|  + func                -456    0.176  __ipipe_handle_irq+0xe (ipipe_trigger_irq+0xbb)
:|  + func                -456    0.139  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|  + end     0x80000001  -456    0.165  ipipe_trigger_irq+0xc5 (rtcap_xmit_hook+0x173 [rtcap])
:   + func                -456    0.157  e1000_xmit_frame+0xe [rt_e1000] (rtcap_xmit_hook+0x17e [rtcap])
:|  + begin   0x80000000  -456    0.206  e1000_xmit_frame+0x470 [rt_e1000] (rtcap_xmit_hook+0x17e [rtcap])
:|  # func                -455    0.139  __ipipe_restore_pipeline_head+0x11 (e1000_xmit_frame+0x48f [rt_e1000])
:|  + end     0x80000000  -455    0.232  __ipipe_restore_pipeline_head+0x96 (e1000_xmit_frame+0x48f [rt_e1000])
:|  + begin   0x80000000  -455    0.142  e1000_xmit_frame+0x480 [rt_e1000] (rtcap_xmit_hook+0x17e [rtcap])
:|  # func                -455    0.281  xnpod_get_time+0x14 (e1000_xmit_frame+0x35e [rt_e1000])
:|  # func                -455    0.142  __ipipe_restore_pipeline_head+0x11 (e1000_xmit_frame+0x3be [rt_e1000])
:|  + end     0x80000000  -454    0.154  __ipipe_restore_pipeline_head+0x96 (e1000_xmit_frame+0x3be [rt_e1000])
:   + func                -454    0.139  _rtdm_synch_flush+0xb (tdma_xmit_sync_frame+0x12c [tdma])
:|  + begin   0x80000000  -454    0.187  _rtdm_synch_flush+0xf8 (tdma_xmit_sync_frame+0x12c [tdma])
:|  # func                -454    0.161  xnsynch_flush+0xe (_rtdm_synch_flush+0x63)
:|  # func                -454    0.146  __ipipe_restore_pipeline_head+0x11 (_rtdm_synch_flush+0xa2)
:|  + end     0x80000000  -454    0.157  __ipipe_restore_pipeline_head+0x96 (_rtdm_synch_flush+0xa2)
:|  + begin   0x80000000  -453    0.229  tdma_worker+0x6de [tdma] (xnarch_thread_redirect+0x25)
:|  # func                -453    0.142  __ipipe_restore_pipeline_head+0x11 (tdma_worker+0x6ff [tdma])
:|  + end     0x80000000  -453    0.139  __ipipe_restore_pipeline_head+0x96 (tdma_worker+0x6ff [tdma])
:   + func                -453    0.135  rtdm_task_sleep_until+0xe (tdma_worker+0x5fa [tdma])
:|  + begin   0x80000000  -453    0.199  rtdm_task_sleep_until+0x14b (tdma_worker+0x5fa [tdma])
:|  # func                -453    0.236  xnpod_get_time+0x14 (rtdm_task_sleep_until+0x75)
:|  # func                -452    0.157  xnpod_suspend_thread+0xe (rtdm_task_sleep_until+0xa9)
:|  # func                -452    0.150  xntimer_set_sched+0xe (xnpod_suspend_thread+0x1f9)
:|  # func                -452    0.417  xntimer_do_start_aperiodic+0xe (xnpod_suspend_thread+0x21a)
:|  # func                -452    0.139  xnpod_schedule+0xe (xnpod_suspend_thread+0x257)
:|  # [   -1] -<?>-   99  -452    0.387  xnpod_schedule+0x503 (xnpod_suspend_thread+0x257)
:|  # func                -451    0.323  __switch_to+0xe (xnpod_schedule+0x218)
:|  # [    0] -<?>-   -1  -451    0.349  xnpod_schedule+0x327 (xnintr_irq_handler+0x1f5)
:|   +func                -450    0.131  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|   +func                -450    0.139  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
:|   #end     0x80000000  -450    0.195  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
:    #func                -450    0.345  rtcap_signal_handler+0xe [rtcap] (__ipipe_sync_stage+0x1ea)
:|   #begin   0xffffffea  -450    0.157  common_interrupt+0x29 (mcount+0x24)
:|   #func                -450    0.165  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
:|   #func                -449    0.142  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0xe7)
:|   #func                -449    0.120  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
:|   #func                -449    0.135  __ipipe_dispatch_wired+0x14 (__ipipe_handle_irq+0x7d)
:|  #*func                -449    0.259  xnintr_irq_handler+0xe (__ipipe_dispatch_wired+0xbe)
:|  #*func                -449+   1.018  e1000_intr+0x11 [rt_e1000] (xnintr_irq_handler+0xa6)
:|  #*func                -448    0.311  xnpod_get_time+0x14 (e1000_intr+0x39 [rt_e1000])
:|  #*func                -447    0.139  e1000_alloc_rx_buffers+0xe [rt_e1000] (e1000_intr+0x3fb [rt_e1000])
:|  #*func                -447    0.364  alloc_rtskb+0xb [rtnet] (e1000_alloc_rx_buffers+0x149 [rt_e1000])
:|  #*func                -447    0.202  e1000_check_64k_bound+0x9 [rt_e1000] (e1000_alloc_rx_buffers+0x163 [rt_e1000])
:|  #*func                -447    0.195  e1000_check_64k_bound+0x9 [rt_e1000] (e1000_alloc_rx_buffers+0x9e [rt_e1000])
:|  #*func                -446    0.383  alloc_rtskb+0xb [rtnet] (e1000_alloc_rx_buffers+0x149 [rt_e1000])
:|  #*func                -446    0.169  e1000_unmap_and_free_tx_resource+0x9 [rt_e1000] (e1000_intr+0x2d8 [rt_e1000])
:|  #*func                -446    0.368  kfree_rtskb+0xe [rtnet] (e1000_unmap_and_free_tx_resource+0x16 [rt_e1000])
:|  #*func                -446    0.135  e1000_alloc_rx_buffers+0xe [rt_e1000] (e1000_intr+0x3fb [rt_e1000])
:|  #*func                -445    0.315  alloc_rtskb+0xb [rtnet] (e1000_alloc_rx_buffers+0x149 [rt_e1000])
:|  #*func                -445    0.112  rthal_irq_end+0x8 (xnintr_irq_handler+0x1d9)
:|  #*func                -445    0.120  __ipipe_end_fasteoi_irq+0x8 (rthal_irq_end+0x24)
:|  #*func                -445    0.323  ack_ioapic_quirk_irq+0x9 (__ipipe_end_fasteoi_irq+0xe)
:|   #func                -445    0.154  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
:|   #end     0xffffffea  -444    0.334  common_interrupt+0x38 (mcount+0x24)
:|   #begin   0x80000000  -444    0.199  rtcap_signal_handler+0x230 [rtcap] (__ipipe_sync_stage+0x1ea)
:|  *#func                -444    0.157  __ipipe_restore_pipeline_head+0x11 (rtcap_signal_handler+0x23c [rtcap])
:|   #end     0x80000000  -444    0.165  __ipipe_restore_pipeline_head+0x96 (rtcap_signal_handler+0x23c [rtcap])
:    #func                -444    0.150  __alloc_skb+0xe (rtcap_signal_handler+0x111 [rtcap])
:    #func                -443    0.116  kmem_cache_alloc+0x14 (__alloc_skb+0x30)
:    #func                -443    0.123  ipipe_check_context+0x11 (kmem_cache_alloc+0x29)
:    #func                -443    0.123  __ipipe_test_and_stall_root+0x16 (kmem_cache_alloc+0x2e)
:|   #begin   0x80000001  -443    0.150  __ipipe_test_and_stall_root+0x6b (kmem_cache_alloc+0x2e)
:|   #end     0x80000001  -443    0.172  __ipipe_test_and_stall_root+0x47 (kmem_cache_alloc+0x2e)
:    #func                -443    0.131  __ipipe_restore_root+0x8 (kmem_cache_alloc+0x6c)
:    #func                -443    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001  -442    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001  -442    0.139  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func                -442    0.123  __kmalloc+0xe (__alloc_skb+0x4d)
:    #func                -442    0.131  ipipe_check_context+0x11 (__kmalloc+0x4e)
:    #func                -442    0.165  __ipipe_test_and_stall_root+0x16 (__kmalloc+0x53)
:|   #begin   0x80000001  -442    0.150  __ipipe_test_and_stall_root+0x6b (__kmalloc+0x53)
:|   #end     0x80000001  -442    0.146  __ipipe_test_and_stall_root+0x47 (__kmalloc+0x53)
:    #func                -441    0.157  __ipipe_restore_root+0x8 (__kmalloc+0x8e)
:    #func                -441    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001  -441    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001  -441    0.236  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func                -441    0.180  eth_type_trans+0xa (rtcap_signal_handler+0x276 [rtcap])
:    #func                -441    0.135  rtcap_kfree_rtskb+0xa [rtcap] (rtcap_signal_handler+0x2dc [rtcap])
:|   #begin   0x80000000  -440    0.172  rtcap_kfree_rtskb+0x16b [rtcap] (rtcap_signal_handler+0x2dc [rtcap])
:|  *#func                -440    0.157  __ipipe_restore_pipeline_head+0x11 (rtcap_kfree_rtskb+0x187 [rtcap])
:|   #end     0x80000000  -440    0.161  __ipipe_restore_pipeline_head+0x96 (rtcap_kfree_rtskb+0x187 [rtcap])
:|   #begin   0x80000000  -440    0.195  rtcap_kfree_rtskb+0x17b [rtcap] (rtcap_signal_handler+0x2dc [rtcap])
:|  *#func                -440    0.131  __ipipe_restore_pipeline_head+0x11 (rtcap_kfree_rtskb+0x122 [rtcap])
:|   #end     0x80000000  -440    0.165  __ipipe_restore_pipeline_head+0x96 (rtcap_kfree_rtskb+0x122 [rtcap])
:    #func                -439    0.116  netif_rx+0xe (rtcap_signal_handler+0x2fc [rtcap])
:    #func                -439    0.135  ipipe_check_context+0x11 (netif_rx+0x77)
:    #func                -439    0.127  __ipipe_test_and_stall_root+0x16 (netif_rx+0x7c)
:|   #begin   0x80000001  -439    0.150  __ipipe_test_and_stall_root+0x6b (netif_rx+0x7c)
:|   #end     0x80000001  -439    0.172  __ipipe_test_and_stall_root+0x47 (netif_rx+0x7c)
:    #func                -439    0.116  __netif_rx_schedule+0x16 (netif_rx+0x195)
:    #func                -439    0.139  ipipe_check_context+0x11 (__netif_rx_schedule+0x24)
:    #func                -438    0.123  __ipipe_test_and_stall_root+0x16 (__netif_rx_schedule+0x29)
:|   #begin   0x80000001  -438    0.150  __ipipe_test_and_stall_root+0x6b (__netif_rx_schedule+0x29)
:|   #end     0x80000001  -438    0.169  __ipipe_test_and_stall_root+0x47 (__netif_rx_schedule+0x29)
:    #func                -438    0.120  __ipipe_restore_root+0x8 (__netif_rx_schedule+0x98)
:    #func                -438    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001  -438    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001  -438    0.172  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func                -437    0.120  __ipipe_restore_root+0x8 (netif_rx+0x126)
:    #func                -437    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001  -437    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001  -437    0.150  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:|   #begin   0x80000000  -437    0.176  rtcap_signal_handler+0x230 [rtcap] (__ipipe_sync_stage+0x1ea)
:|  *#func                -437    0.154  __ipipe_restore_pipeline_head+0x11 (rtcap_signal_handler+0x333 [rtcap])
:|   #end     0x80000000  -437    0.165  __ipipe_restore_pipeline_head+0x96 (rtcap_signal_handler+0x333 [rtcap])
:    #func                -436    0.146  irq_exit+0x8 (__ipipe_sync_stage+0x1f2)
:    #func                -436    0.116  do_softirq+0x12 (irq_exit+0x4a)
:    #func                -436    0.135  ipipe_check_context+0x11 (do_softirq+0x3c)
:    #func                -436    0.123  __ipipe_test_and_stall_root+0x16 (do_softirq+0x41)
:|   #begin   0x80000001  -436    0.154  __ipipe_test_and_stall_root+0x6b (do_softirq+0x41)
:|   #end     0x80000001  -436    0.135  __ipipe_test_and_stall_root+0x47 (do_softirq+0x41)
:    #func                -436    0.120  __do_softirq+0xe (do_softirq+0x78)
:    #func                -435    0.127  __ipipe_unstall_root+0x8 (__do_softirq+0x6c)
:|   #begin   0x80000000  -435    0.135  __ipipe_unstall_root+0x53 (__do_softirq+0x6c)
:|   +end     0x80000000  -435    0.165  __ipipe_unstall_root+0x45 (__do_softirq+0x6c)
:    +func                -435    0.127  net_rx_action+0xe (__do_softirq+0x83)
:    +func                -435    0.123  ipipe_check_context+0x11 (net_rx_action+0x41)
:    +func                -435    0.123  __ipipe_stall_root+0x12 (net_rx_action+0x46)
:|   +begin   0x80000001  -435    0.146  __ipipe_stall_root+0x5b (net_rx_action+0x46)
:|   #end     0x80000001  -435    0.139  __ipipe_stall_root+0x41 (net_rx_action+0x46)
:    #func                -434    0.127  __ipipe_unstall_root+0x8 (net_rx_action+0x80)
:|   #begin   0x80000000  -434    0.135  __ipipe_unstall_root+0x53 (net_rx_action+0x80)
:|   +end     0x80000000  -434    0.127  __ipipe_unstall_root+0x45 (net_rx_action+0x80)
:    +func                -434    0.146  ipipe_check_context+0x11 (net_rx_action+0x94)
:    +func                -434    0.150  process_backlog+0xe (net_rx_action+0xdd)
:    +func                -434    0.120  ipipe_check_context+0x11 (process_backlog+0x6d)
:    +func                -434    0.127  __ipipe_stall_root+0x12 (process_backlog+0x72)
:|   +begin   0x80000001  -433    0.146  __ipipe_stall_root+0x5b (process_backlog+0x72)
:|   #end     0x80000001  -433    0.157  __ipipe_stall_root+0x41 (process_backlog+0x72)
:    #func                -433    0.127  __ipipe_unstall_root+0x8 (process_backlog+0x9d)
:|   #begin   0x80000000  -433    0.135  __ipipe_unstall_root+0x53 (process_backlog+0x9d)
:|   +end     0x80000000  -433    0.131  __ipipe_unstall_root+0x45 (process_backlog+0x9d)
:    +func                -433    0.199  netif_receive_skb+0xe (process_backlog+0xa7)
:    +func                -433    0.259  ipipe_check_context+0x11 (netif_receive_skb+0xc7)
:    +func                -432    0.150  local_bh_disable+0x8 (packet_rcv+0x7e [af_packet])
:    +func                -432    0.135  sk_run_filter+0x14 (packet_rcv+0x99 [af_packet])
:    +func                -432    0.135  local_bh_enable+0xb (packet_rcv+0xa0 [af_packet])
:    +func                -432    0.123  __ipipe_test_root+0x12 (local_bh_enable+0x10)
:|   +begin   0x80000001  -432    0.169  __ipipe_test_root+0x4b (local_bh_enable+0x10)
:|   +end     0x80000001  -432    0.169  __ipipe_test_root+0x6a (local_bh_enable+0x10)
:    +func                -431    0.169  ipipe_check_context+0x11 (local_bh_enable+0x5a)
:    +func                -431    0.169  eth_header_parse+0x8 (packet_rcv+0x109 [af_packet])
:    +func                -431    0.116  _spin_lock+0x9 (packet_rcv+0x1cd [af_packet])
:    +func                -431    0.184  ipipe_check_context+0x11 (_spin_lock+0x15)
:    +func                -431    0.127  sock_def_readable+0x11 (packet_rcv+0x1f7 [af_packet])
:    +func                -431    0.120  _read_lock+0x9 (sock_def_readable+0x1e)
:    +func                -431    0.154  ipipe_check_context+0x11 (_read_lock+0x15)
:    +func                -430    0.112  __wake_up+0x14 (sock_def_readable+0x78)
:    +func                -430    0.112  _spin_lock_irqsave+0x12 (__wake_up+0x20)
:    +func                -430    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func                -430    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001  -430    0.165  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001  -430    0.135  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func                -430    0.154  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func                -429    0.187  __wake_up_common+0xe (__wake_up+0x3c)
:    #func                -429    0.120  autoremove_wake_function+0x11 (__wake_up_common+0x3e)
:    #func                -429    0.135  default_wake_function+0x8 (autoremove_wake_function+0x20)
:    #func                -429    0.112  try_to_wake_up+0x14 (default_wake_function+0x10)
:    #func                -429    0.120  task_rq_lock+0x14 (try_to_wake_up+0x24)
:    #func                -429    0.127  ipipe_check_context+0x11 (task_rq_lock+0x28)
:    #func                -429    0.123  __ipipe_test_and_stall_root+0x16 (task_rq_lock+0x2d)
:|   #begin   0x80000001  -429    0.150  __ipipe_test_and_stall_root+0x6b (task_rq_lock+0x2d)
:|   #end     0x80000001  -428    0.142  __ipipe_test_and_stall_root+0x47 (task_rq_lock+0x2d)
:    #func                -428    0.116  _spin_lock+0x9 (task_rq_lock+0x52)
:    #func                -428    0.195  ipipe_check_context+0x11 (_spin_lock+0x15)
:    #func                -428    0.123  idle_cpu+0x8 (try_to_wake_up+0x1db)
:    #func                -428    0.202  sched_clock+0x12 (try_to_wake_up+0x2be)
:    #func                -428    0.146  recalc_task_prio+0xa (try_to_wake_up+0x314)
:    #func                -427    0.157  effective_prio+0x9 (recalc_task_prio+0x74)
:    #func                -427    0.131  __activate_task+0x12 (try_to_wake_up+0x34e)
:    #func                -427    0.169  enqueue_task+0x12 (__activate_task+0x26)
:    #func                -427    0.154  resched_task+0x9 (try_to_wake_up+0x40a)
:    #func                -427    0.112  _spin_unlock_irqrestore+0x8 (try_to_wake_up+0x54)
:    #func                -427    0.120  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x1a)
:    #func                -427    0.131  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001  -426    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001  -426    0.131  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func                -426    0.150  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x24)
:    #func                -426    0.150  _spin_unlock_irqrestore+0x8 (__wake_up+0x45)
:    #func                -426    0.127  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func                -426    0.142  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000  -426    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000  -425    0.127  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func                -425    0.195  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func                -425    0.184  ipipe_check_context+0x11 (netif_receive_skb+0x225)
:    +func                -425    0.135  ipipe_check_context+0x11 (process_backlog+0x6d)
:    +func                -425    0.127  __ipipe_stall_root+0x12 (process_backlog+0x72)
:|   +begin   0x80000001  -425    0.142  __ipipe_stall_root+0x5b (process_backlog+0x72)
:|   #end     0x80000001  -425    0.161  __ipipe_stall_root+0x41 (process_backlog+0x72)
:    #func                -424    0.142  __ipipe_unstall_root+0x8 (process_backlog+0x12b)
:|   #begin   0x80000000  -424    0.135  __ipipe_unstall_root+0x53 (process_backlog+0x12b)
:|   +end     0x80000000  -424    0.142  __ipipe_unstall_root+0x45 (process_backlog+0x12b)
:    +func                -424    0.161  ipipe_check_context+0x11 (net_rx_action+0xfe)
:    +func                -424    0.120  ipipe_check_context+0x11 (net_rx_action+0x10f)
:    +func                -424    0.123  __ipipe_stall_root+0x12 (net_rx_action+0x114)
:|   +begin   0x80000001  -424    0.146  __ipipe_stall_root+0x5b (net_rx_action+0x114)
:|   #end     0x80000001  -423    0.131  __ipipe_stall_root+0x41 (net_rx_action+0x114)
:    #func                -423    0.123  ipipe_check_context+0x11 (net_rx_action+0x137)
:    #func                -423    0.123  ipipe_check_context+0x11 (net_rx_action+0x19a)
:    #func                -423    0.127  __ipipe_unstall_root+0x8 (net_rx_action+0x19f)
:|   #begin   0x80000000  -423    0.135  __ipipe_unstall_root+0x53 (net_rx_action+0x19f)
:|   +end     0x80000000  -423    0.142  __ipipe_unstall_root+0x45 (net_rx_action+0x19f)
:    +func                -423    0.120  ipipe_check_context+0x11 (__do_softirq+0xaa)
:    +func                -423    0.127  __ipipe_stall_root+0x12 (__do_softirq+0xaf)
:|   +begin   0x80000001  -422    0.146  __ipipe_stall_root+0x5b (__do_softirq+0xaf)
:|   #end     0x80000001  -422    0.131  __ipipe_stall_root+0x41 (__do_softirq+0xaf)
:    #func                -422    0.120  _local_bh_enable+0xb (__do_softirq+0xe2)
:    #func                -422    0.127  __ipipe_test_root+0x12 (_local_bh_enable+0x20)
:|   #begin   0x80000001  -422    0.120  __ipipe_test_root+0x4b (_local_bh_enable+0x20)
:|   #end     0x80000001  -422    0.142  __ipipe_test_root+0x6a (_local_bh_enable+0x20)
:    #func                -422    0.116  __ipipe_restore_root+0x8 (do_softirq+0x68)
:    #func                -422    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
:|   #begin   0x80000001  -421    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
:|   #end     0x80000001  -421    0.146  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
:    #func                -421    0.165  ipipe_check_context+0x11 (irq_exit+0x54)
:    #func                -421    0.146  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   #begin   0x80000000  -421    0.142  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d  -421    0.338  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:|   #end     0xffffff16  -420    0.142  ipipe_ipi3+0x3d (mwait_idle_with_hints+0x4e)
:|   #func                -420    0.146  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
:|   +end     0x8000000d  -420    0.315  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
:    +func                -420    0.154  ipipe_check_context+0x11 (cpu_idle+0x9c)
:    +func                -420    0.116  __sched_text_start+0xe (cpu_idle+0xa1)
:    +func                -419    0.135  ipipe_check_context+0x11 (__sched_text_start+0x18)
:    +func                -419    0.154  ipipe_check_context+0x11 (__sched_text_start+0x66)
:    +func                -419    0.176  sched_clock+0x12 (__sched_text_start+0xa5)
:    +func                -419    0.112  _spin_lock_irq+0x9 (__sched_text_start+0x11b)
:    +func                -419    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
:    +func                -419    0.127  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
:|   +begin   0x80000001  -419    0.146  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
:|   #end     0x80000001  -418    0.142  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
:    #func                -418    0.206  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
:    #func                -418    0.127  recalc_task_prio+0xa (__sched_text_start+0x5f9)
:    #func                -418    0.255  effective_prio+0x9 (recalc_task_prio+0x74)
:|   #begin   0x80000000  -418    0.240  __sched_text_start+0x5a1 (cpu_idle+0xa1)
:|   #func                -417    0.236  __switch_to+0xe (__sched_text_start+0x423)
:|   #end     0x80000000  -417    0.150  __sched_text_start+0x590 (schedule_timeout+0x76)
:    #func                -417    0.139  __ipipe_unstall_root+0x8 (__sched_text_start+0x4dc)
:|   #begin   0x80000000  -417    0.135  __ipipe_unstall_root+0x53 (__sched_text_start+0x4dc)
:|   +end     0x80000000  -417    0.157  __ipipe_unstall_root+0x45 (__sched_text_start+0x4dc)
:    +func                -417    0.176  ipipe_check_context+0x11 (__sched_text_start+0x513)
:    +func                -416    0.131  finish_wait+0x16 (skb_recv_datagram+0x133)
:    +func                -416    0.139  skb_dequeue+0x16 (skb_recv_datagram+0x146)
:    +func                -416    0.112  _spin_lock_irqsave+0x12 (skb_dequeue+0x22)
:    +func                -416    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func                -416    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001  -416    0.142  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001  -416    0.135  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func                -416    0.176  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func                -415    0.116  _spin_unlock_irqrestore+0x8 (skb_dequeue+0x49)
:    #func                -415    0.112  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func                -415    0.139  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000  -415    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000  -415    0.127  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func                -415    0.176  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func                -415    0.154  skb_copy_datagram_iovec+0xe (packet_recvmsg+0xb7 [af_packet])
:    +func                -414    0.135  memcpy_toiovec+0xe (skb_copy_datagram_iovec+0x141)
:    +func                -414    0.146  copy_to_user+0xb (memcpy_toiovec+0x4c)
:    +func                -414    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
:    +func                -414    0.131  cond_resched+0x8 (copy_to_user+0x3b)
:    +func                -414    0.304  __copy_to_user_ll+0xa (copy_to_user+0x46)
:    +func                -414    0.123  skb_free_datagram+0x8 (packet_recvmsg+0x159 [af_packet])
:    +func                -413    0.127  kfree_skb+0x8 (skb_free_datagram+0xf)
:    +func                -413    0.150  __kfree_skb+0xd (kfree_skb+0x23)
:    +func                -413    0.139  sock_rfree+0x8 (__kfree_skb+0x56)
:    +func                -413    0.139  kfree_skbmem+0x9 (__kfree_skb+0x9a)
:    +func                -413    0.139  skb_release_data+0xa (kfree_skbmem+0x10)
:    +func                -413    0.127  kfree+0xb (skb_release_data+0x5e)
:    +func                -413    0.120  ipipe_check_context+0x11 (kfree+0x1b)
:    +func                -413    0.123  __ipipe_test_and_stall_root+0x16 (kfree+0x20)
:|   +begin   0x80000001  -412    0.146  __ipipe_test_and_stall_root+0x6b (kfree+0x20)
:|   #end     0x80000001  -412    0.154  __ipipe_test_and_stall_root+0x47 (kfree+0x20)
:    #func                -412    0.127  __ipipe_restore_root+0x8 (kfree+0x75)
:    #func                -412    0.154  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000  -412    0.139  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000  -412    0.135  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func                -412    0.139  kmem_cache_free+0xe (kfree_skbmem+0x3d)
:    +func                -411    0.120  ipipe_check_context+0x11 (kmem_cache_free+0x40)
:    +func                -411    0.123  __ipipe_test_and_stall_root+0x16 (kmem_cache_free+0x45)
:|   +begin   0x80000001  -411    0.146  __ipipe_test_and_stall_root+0x6b (kmem_cache_free+0x45)
:|   #end     0x80000001  -411    0.142  __ipipe_test_and_stall_root+0x47 (kmem_cache_free+0x45)
:    #func                -411    0.135  __ipipe_restore_root+0x8 (kmem_cache_free+0x86)
:    #func                -411    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000  -411    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000  -410    0.214  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func                -410    0.157  move_addr_to_user+0x16 (sys_recvfrom+0xbd)
:    +func                -410    0.116  copy_to_user+0xb (move_addr_to_user+0x65)
:    +func                -410    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
:    +func                -410    0.112  cond_resched+0x8 (copy_to_user+0x3b)
:    +func                -410    0.266  __copy_to_user_ll+0xa (copy_to_user+0x46)
:    +func                -409    0.150  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
:|   +begin   0x80000001  -409    0.142  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
:|   #end     0x80000001  -409    0.142  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
:    #func                -409    0.127  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
:|   #begin   0x80000000  -409    0.127  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
:|   +end     0x8000000d  -409    0.454  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
:    +func                -408    0.150  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
:|   +begin   0x80000001  -408    0.150  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
:|   +end     0x80000001  -408    0.169  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
:    +func                -408    0.116  sys_ioctl+0x14 (sysenter_past_esp+0x6c)
:    +func                -408    0.135  fget_light+0x16 (sys_ioctl+0x27)
:    +func                -408    0.127  dummy_file_ioctl+0x8 (sys_ioctl+0x3e)
:    +func                -407    0.131  vfs_ioctl+0x14 (sys_ioctl+0x70)
:    +func                -407    0.120  do_ioctl+0x14 (vfs_ioctl+0x5c)
:    +func                -407    0.255  sock_ioctl+0x14 (do_ioctl+0x2d)
:    +func                -407    0.127  sock_get_timestamp+0x16 (sock_ioctl+0xa8)
:    +func                -407    0.116  copy_to_user+0xb (sock_get_timestamp+0x4c)
:    +func                -407    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
:    +func                -407    0.116  cond_resched+0x8 (copy_to_user+0x3b)
:    +func                -406    0.172  __copy_to_user_ll+0xa (copy_to_user+0x46)
:    +func                -406    0.123  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
:|   +begin   0x80000001  -406    0.146  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
:|   #end     0x80000001  -406    0.139  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
:    #func                -406    0.131  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
:|   #begin   0x80000000  -406    0.127  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
:|   +end     0x8000000d  -406    0.811  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
:    +func                -405    0.120  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
:|   +begin   0x80000001  -405    0.131  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
:|   +end     0x80000001  -405    0.169  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
:    +func                -404    0.112  sys_time+0xc (sysenter_past_esp+0x6c)
:    +func                -404    0.176  do_gettimeofday+0xe (sys_time+0x17)
:    +func                -404    0.191  read_tsc+0x8 (do_gettimeofday+0x38)
:    +func                -404    0.142  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
:|   +begin   0x80000001  -404    0.154  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
:|   #end     0x80000001  -404    0.146  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
:    #func                -403    0.123  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
:|   #begin   0x80000000  -403    0.127  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
:|   +end     0x8000000d  -403    0.420  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
:    +func                -403    0.135  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
:|   +begin   0x80000001  -403    0.123  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
:|   +end     0x80000001  -403    0.154  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
:    +func                -402    0.142  sys_socketcall+0xc (sysenter_past_esp+0x6c)
:    +func                -402    0.116  copy_from_user+0xb (sys_socketcall+0x36)
:    +func                -402    0.116  ipipe_check_context+0x11 (copy_from_user+0x34)
:    +func                -402    0.116  cond_resched+0x8 (copy_from_user+0x39)
:    +func                -402    0.225  __copy_from_user_ll+0xa (copy_from_user+0x44)
:    +func                -402    0.154  sys_recvfrom+0x11 (sys_socketcall+0x1bb)
:    +func                -402    0.154  fget_light+0x16 (sys_recvfrom+0x1f)
:    +func                -401    0.154  sock_from_file+0x11 (sys_recvfrom+0x38)
:    +func                -401    0.157  sock_recvmsg+0x11 (sys_recvfrom+0x98)
:    +func                -401    0.127  dummy_socket_recvmsg+0x8 (sock_recvmsg+0xda)
:    +func                -401    0.191  skb_recv_datagram+0xe (packet_recvmsg+0x6b [af_packet])
:    +func                -401    0.139  skb_dequeue+0x16 (skb_recv_datagram+0x146)
:    +func                -401    0.112  _spin_lock_irqsave+0x12 (skb_dequeue+0x22)
:    +func                -401    0.123  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func                -400    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001  -400    0.146  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001  -400    0.135  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func                -400    0.172  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func                -400    0.116  _spin_unlock_irqrestore+0x8 (skb_dequeue+0x49)
:    #func                -400    0.112  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func                -400    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000  -399    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000  -399    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func                -399    0.142  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func                -399    0.120  prepare_to_wait_exclusive+0x14 (skb_recv_datagram+0xd9)
:    +func                -399    0.112  _spin_lock_irqsave+0x12 (prepare_to_wait_exclusive+0x22)
:    +func                -399    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
:    +func                -399    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
:|   +begin   0x80000001  -399    0.150  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
:|   #end     0x80000001  -398    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
:    #func                -398    0.176  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
:    #func                -398    0.112  _spin_unlock_irqrestore+0x8 (prepare_to_wait_exclusive+0x57)
:    #func                -398    0.116  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
:    #func                -398    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
:|   #begin   0x80000000  -398    0.135  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
:|   +end     0x80000000  -398    0.127  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
:    +func                -397    0.135  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
:    +func                -397    0.112  schedule_timeout+0x11 (skb_recv_datagram+0x125)
:    +func                -397    0.131  __sched_text_start+0xe (schedule_timeout+0x76)
:    +func                -397    0.123  ipipe_check_context+0x11 (__sched_text_start+0x18)
:    +func                -397    0.127  ipipe_check_context+0x11 (__sched_text_start+0x66)
:    +func                -397    0.176  sched_clock+0x12 (__sched_text_start+0xa5)
:    +func                -397    0.112  _spin_lock_irq+0x9 (__sched_text_start+0x11b)
:    +func                -397    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
:    +func                -396    0.127  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
:|   +begin   0x80000001  -396    0.146  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
:|   #end     0x80000001  -396    0.127  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
:    #func                -396    0.157  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
:    #func                -396    0.150  deactivate_task+0x9 (__sched_text_start+0x4ad)
:    #func                -396    0.180  dequeue_task+0x12 (deactivate_task+0x1f)
:    #func                -396    0.184  find_busiest_group+0xe (__sched_text_start+0x878)
:    #func                -395    0.120  __first_cpu+0x8 (find_busiest_group+0x375)
:    #func                -395    0.142  __first_cpu+0x8 (find_busiest_group+0xe5)
:    #func                -395    0.139  idle_cpu+0x8 (find_busiest_group+0x18c)
:    #func                -395    0.116  __next_cpu+0x9 (find_busiest_group+0x13b)
:    #func                -395    0.191  find_next_bit+0xe (__next_cpu+0x1a)
:    #func                -395    0.154  __first_cpu+0x8 (find_busiest_group+0xe5)
:    #func                -395    0.116  __next_cpu+0x9 (find_busiest_group+0x13b)
:    #func                -394    0.296  find_next_bit+0xe (__next_cpu+0x1a)
:|   #begin   0x80000000  -394    0.180  __sched_text_start+0x5a1 (schedule_timeout+0x76)
:|   #func                -394    0.221  __switch_to+0xe (__sched_text_start+0x423)
:|   #end     0x80000000  -394    0.142  __sched_text_start+0x590 (cpu_idle+0xa1)
:    #func                -394    0.127  __ipipe_unstall_root+0x8 (__sched_text_start+0x4dc)
:|   #begin   0x80000000  -393    0.139  __ipipe_unstall_root+0x53 (__sched_text_start+0x4dc)
:|   +end     0x80000000  -393    0.127  __ipipe_unstall_root+0x45 (__sched_text_start+0x4dc)
:    +func                -393    0.139  ipipe_check_context+0x11 (__sched_text_start+0x513)
:    +func                -393    0.139  ipipe_check_context+0x11 (cpu_idle+0xab)
:    +func                -393    0.127  ipipe_suspend_domain+0xe (cpu_idle+0x82)
:|   +begin   0x80000001  -393    0.154  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
:|   +end     0x80000001  -393    0.135  ipipe_suspend_domain+0xef (cpu_idle+0x82)
:    +func                -392    0.108  mwait_idle+0x8 (cpu_idle+0x84)
:    +func                -392    0.127  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
:|   +begin   0x80000000  -392    0.150  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
:|   +end     0x80000000  -392    0.127  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
:    +func                -392! 388.945  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
:|   +begin   0xffffff16    -3    0.139  ipipe_ipi3+0x2e (mwait_idle_with_hints+0x4e)
:|   +func                  -3    0.169  __ipipe_handle_irq+0xe (ipipe_ipi3+0x33)
:|   +func                  -3    0.123  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0xe7)
:|   +func                  -3    0.139  __ipipe_dispatch_wired+0x14 (__ipipe_handle_irq+0x7d)
:|  # func                  -2    0.127  xnintr_clock_handler+0x8 (__ipipe_dispatch_wired+0xbe)
:|  # func                  -2    0.221  xnintr_irq_handler+0xe (xnintr_clock_handler+0x17)
:|  # func                  -2    0.184  xnpod_announce_tick+0x8 (xnintr_irq_handler+0xa6)
:|  # func                  -2    0.244  xntimer_do_tick_aperiodic+0xe (xnpod_announce_tick+0x44)
:|  # func                  -2    0.135  xnthread_timeout_handler+0x8 (xntimer_do_tick_aperiodic+0x222)
:|  # func                  -2    0.161  xnpod_resume_thread+0xe (xnthread_timeout_handler+0x1e)
:|  # [   -1] -<?>-   99    -1    0.304  xnpod_resume_thread+0x7e (xnthread_timeout_handler+0x1e)
:|  # func                  -1    0.191  xnpod_schedule+0xe (xnintr_irq_handler+0x1f5)
:|  # [    0] -<?>-   -1    -1    0.631  xnpod_schedule+0x503 (xnintr_irq_handler+0x1f5)
:|  # [   -1] -<?>-   99     0    0.217  xnpod_schedule+0x327 (xnpod_suspend_thread+0x257)
:|  # func                   0    0.127  __ipipe_restore_pipeline_head+0x11 (rtdm_task_sleep_until+0xec)
:|  + end     0x80000000     0    0.169  __ipipe_restore_pipeline_head+0x96 (rtdm_task_sleep_until+0xec)
:|  + begin   0x80000000     0    0.210  tdma_worker+0x6ee [tdma] (xnarch_thread_redirect+0x25)
<|  # freeze  0x00000000     0    0.443  tdma_worker+0x9d [tdma] (xnarch_thread_redirect+0x25)
 |  # func                   0    0.157  __ipipe_restore_pipeline_head+0x11 (tdma_worker+0x81a [tdma])
 |  + end     0x80000000     0    0.202  __ipipe_restore_pipeline_head+0x96 (tdma_worker+0x81a [tdma])
    + func                   0    0.191  kfree_rtskb+0xe [rtnet] (tdma_worker+0x120 [tdma])
 |  + begin   0x80000000     0    0.221  kfree_rtskb+0x1eb [rtnet] (tdma_worker+0x120 [tdma])
 |  # func                   1    0.150  __ipipe_restore_pipeline_head+0x11 (kfree_rtskb+0x23c [rtnet])
 |  + end     0x80000000     1    0.172  __ipipe_restore_pipeline_head+0x96 (kfree_rtskb+0x23c [rtnet])
 |  + begin   0x80000000     1    0.199  kfree_rtskb+0x230 [rtnet] (tdma_worker+0x120 [tdma])
 |  # func                   1    0.161  __ipipe_restore_pipeline_head+0x11 (kfree_rtskb+0x1f7 [rtnet])
 |  + end     0x80000000     1    0.154  __ipipe_restore_pipeline_head+0x96 (kfree_rtskb+0x1f7 [rtnet])
 |  + begin   0x80000000     2    0.259  tdma_worker+0x80b [tdma] (xnarch_thread_redirect+0x25)
 |  # func                   2    0.150  __ipipe_restore_pipeline_head+0x11 (tdma_worker+0x794 [tdma])
 |  + end     0x80000000     2    0.135  __ipipe_restore_pipeline_head+0x96 (tdma_worker+0x794 [tdma])
    + func                   2    0.180  rtdm_task_sleep_until+0xe (tdma_worker+0x3cd [tdma])
 |  + begin   0x80000000     2    0.187  rtdm_task_sleep_until+0x14b (tdma_worker+0x3cd [tdma])
 |  # func                   2    0.240  xnpod_get_time+0x14 (rtdm_task_sleep_until+0x75)
 |  # func                   3    0.187  xnpod_suspend_thread+0xe (rtdm_task_sleep_until+0xa9)
 |  # func                   3    0.146  xntimer_set_sched+0xe (xnpod_suspend_thread+0x1f9)
 |  # func                   3    0.356  xntimer_do_start_aperiodic+0xe (xnpod_suspend_thread+0x21a)
 |  # func                   3    0.157  xnpod_schedule+0xe (xnpod_suspend_thread+0x257)
 |  # [   -1] -<?>-   99     4    0.447  xnpod_schedule+0x503 (xnpod_suspend_thread+0x257)
 |  # func                   4    0.296  __switch_to+0xe (xnpod_schedule+0x218)
 |  # [    0] -<?>-   -1     4    0.379  xnpod_schedule+0x327 (xnintr_irq_handler+0x1f5)
 |   +func                   5    0.187  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   #end     0xffffff16     5    0.157  ipipe_ipi3+0x3d (mwait_idle_with_hints+0x4e)
 |   #func                   5    0.120  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d     5    0.311  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
     +func                   5    0.127  ipipe_suspend_domain+0xe (cpu_idle+0x82)
 |   +begin   0x80000001     6    0.120  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
 |   +end     0x80000001     6    0.169  ipipe_suspend_domain+0xef (cpu_idle+0x82)
     +func                   6    0.127  mwait_idle+0x8 (cpu_idle+0x84)
     +func                   6    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
 |   +begin   0x80000000     6    0.120  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
 |   +end     0x80000000     6    0.157  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
     +func                   6  1934.735  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
 |   +begin   0xffffffff  1941    0.123  common_interrupt+0x29 (mwait_idle_with_hints+0x4e)
 |   +func                1941    0.244  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
 |   +func                1942    0.157  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0x1e4)
 |   +func                1942    0.169  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
 |   +func                1942    0.187  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   +func                1942    0.169  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
 |   #end     0x80000000  1942    0.225  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                1942    0.187  do_IRQ+0xd (__ipipe_sync_stage+0x1a8)
     #func                1943    0.161  handle_fasteoi_irq+0x14 (do_IRQ+0x47)
     #func                1943    0.165  _spin_lock+0x9 (handle_fasteoi_irq+0x2a)
     #func                1943    0.202  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                1943    0.161  handle_IRQ_event+0xe (handle_fasteoi_irq+0x76)
     #func                1943    0.112  timer_interrupt+0xa (handle_IRQ_event+0x31)
     #func                1943    0.112  _spin_lock+0x9 (timer_interrupt+0x14)
     #func                1944    0.184  ipipe_check_context+0x11 (_spin_lock+0x15)
 |   #begin   0x80000001  1944    2.077  timer_interrupt+0xd2 (handle_IRQ_event+0x31)
 |   #end     0x80000001  1946    0.150  timer_interrupt+0xc5 (handle_IRQ_event+0x31)
     #func                1946    0.161  do_timer+0xe (timer_interrupt+0x6a)
     #func                1946    0.244  read_tsc+0x8 (do_timer+0x38)
     #func                1946    0.229  current_tick_length+0x8 (do_timer+0x101)
     #func                1947    0.112  clocksource_get_next+0x8 (do_timer+0x232)
     #func                1947    0.112  _spin_lock_irqsave+0x12 (clocksource_get_next+0x12)
     #func                1947    0.161  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     #func                1947    0.142  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   #begin   0x80000001  1947    0.131  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  1947    0.172  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                1947    0.187  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                1948    0.120  _spin_unlock_irqrestore+0x8 (clocksource_get_next+0x42)
     #func                1948    0.127  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x1a)
     #func                1948    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  1948    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  1948    0.157  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                1948    0.150  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x24)
     #func                1948    0.169  tsc_update_callback+0x14 (do_timer+0x480)
     #func                1949    0.142  smp_send_timer_broadcast_ipi+0x8 (timer_interrupt+0xa6)
     #func                1949    0.120  rthal_broadcast_to_local_timers+0x8 (handle_IRQ_event+0x31)
     #func                1949    0.123  send_IPI_mask_bitmask+0xe (rthal_broadcast_to_local_timers+0x20)
 |   #begin   0x80000001  1949    0.161  send_IPI_mask_bitmask+0x80 (rthal_broadcast_to_local_timers+0x20)
 |   #end     0x80000001  1949    0.387  send_IPI_mask_bitmask+0x6b (rthal_broadcast_to_local_timers+0x20)
 |   #begin   0xffffff1f  1950    0.127  apic_timer_interrupt+0x2e (send_IPI_mask_bitmask+0x6d)
 |   #func                1950    0.232  __ipipe_handle_irq+0xe (apic_timer_interrupt+0x33)
 |   #func                1950    0.165  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0x1e4)
 |   #func                1950    0.202  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   #end     0xffffff1f  1950    0.319  apic_timer_interrupt+0x3d (send_IPI_mask_bitmask+0x6d)
     #func                1951    0.135  ipipe_check_context+0x11 (handle_IRQ_event+0x59)
     #func                1951    0.127  __ipipe_stall_root+0x12 (handle_IRQ_event+0x5e)
 |   #begin   0x80000001  1951    0.135  __ipipe_stall_root+0x5b (handle_IRQ_event+0x5e)
 |   #end     0x80000001  1951    0.165  __ipipe_stall_root+0x41 (handle_IRQ_event+0x5e)
     #func                1951    0.146  note_interrupt+0x14 (handle_fasteoi_irq+0xb3)
     #func                1951    0.120  _spin_lock+0x9 (handle_fasteoi_irq+0x88)
     #func                1951    0.187  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                1952    0.142  ack_apic+0x8 (handle_fasteoi_irq+0x97)
     #func                1952    0.206  irq_exit+0x8 (do_IRQ+0x4c)
     #func                1952    0.142  ipipe_check_context+0x11 (irq_exit+0x43)
     #func                1952    0.135  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  1952    0.116  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  1952    0.375  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0x80000000  1953    0.184  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                1953    0.139  smp_apic_timer_interrupt+0x9 (__ipipe_sync_stage+0x1a8)
     #func                1953    0.135  profile_tick+0x12 (smp_apic_timer_interrupt+0x45)
     #func                1953    0.161  profile_pc+0x12 (profile_tick+0x57)
     #func                1953    0.150  in_lock_functions+0x8 (profile_pc+0x47)
     #func                1953    0.169  update_process_times+0x16 (smp_apic_timer_interrupt+0x70)
     #func                1954    0.202  account_system_time+0x14 (update_process_times+0x81)
     #func                1954    0.206  run_local_timers+0x8 (update_process_times+0x3b)
     #func                1954    0.120  raise_softirq+0x16 (run_local_timers+0x12)
     #func                1954    0.120  ipipe_check_context+0x11 (raise_softirq+0x24)
     #func                1954    0.127  __ipipe_test_and_stall_root+0x16 (raise_softirq+0x29)
 |   #begin   0x80000001  1954    0.202  __ipipe_test_and_stall_root+0x6b (raise_softirq+0x29)
 |   #end     0x80000001  1955    0.154  __ipipe_test_and_stall_root+0x47 (raise_softirq+0x29)
     #func                1955    0.139  __ipipe_restore_root+0x8 (raise_softirq+0x87)
     #func                1955    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  1955    0.199  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  1955    0.142  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                1955    0.157  softlockup_tick+0x14 (run_local_timers+0x17)
     #func                1956    0.131  rcu_pending+0x9 (update_process_times+0x42)
     #func                1956    0.123  __rcu_pending+0x8 (rcu_pending+0x21)
     #func                1956    0.184  __rcu_pending+0x8 (rcu_pending+0x42)
     #func                1956    0.120  scheduler_tick+0xe (update_process_times+0x54)
     #func                1956    0.251  sched_clock+0x12 (scheduler_tick+0x18)
     #func                1956    0.202  run_posix_cpu_timers+0xe (update_process_times+0x5b)
     #func                1957    0.131  __ipipe_test_root+0x12 (run_posix_cpu_timers+0x21)
 |   #begin   0x80000001  1957    0.112  __ipipe_test_root+0x4b (run_posix_cpu_timers+0x21)
 |   #end     0x80000001  1957    0.154  __ipipe_test_root+0x6a (run_posix_cpu_timers+0x21)
     #func                1957    0.161  irq_exit+0x8 (smp_apic_timer_interrupt+0x75)
     #func                1957    0.116  do_softirq+0x12 (irq_exit+0x4a)
     #func                1957    0.123  ipipe_check_context+0x11 (do_softirq+0x3c)
     #func                1957    0.180  __ipipe_test_and_stall_root+0x16 (do_softirq+0x41)
 |   #begin   0x80000001  1958    0.135  __ipipe_test_and_stall_root+0x6b (do_softirq+0x41)
 |   #end     0x80000001  1958    0.150  __ipipe_test_and_stall_root+0x47 (do_softirq+0x41)
     #func                1958    0.157  __do_softirq+0xe (do_softirq+0x78)
     #func                1958    0.127  __ipipe_unstall_root+0x8 (__do_softirq+0x6c)
 |   #begin   0x80000000  1958    0.172  __ipipe_unstall_root+0x53 (__do_softirq+0x6c)
 |   +end     0x80000000  1958    0.187  __ipipe_unstall_root+0x45 (__do_softirq+0x6c)
     +func                1958    0.150  run_timer_softirq+0xe (__do_softirq+0x83)
     +func                1959    0.195  hrtimer_run_queues+0xe (run_timer_softirq+0x29)
     +func                1959    0.131  _spin_lock_irq+0x9 (hrtimer_run_queues+0xd7)
     +func                1959    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                1959    0.180  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  1959    0.131  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  1959    0.157  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                1960    0.161  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                1960    0.161  __ipipe_unstall_root+0x8 (hrtimer_run_queues+0x102)
 |   #begin   0x80000000  1960    0.123  __ipipe_unstall_root+0x53 (hrtimer_run_queues+0x102)
 |   +end     0x80000000  1960    0.161  __ipipe_unstall_root+0x45 (hrtimer_run_queues+0x102)
     +func                1960    0.112  _spin_lock_irq+0x9 (run_timer_softirq+0x3e)
     +func                1960    0.176  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                1960    0.123  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  1961    0.135  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  1961    0.127  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                1961    0.165  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                1961    0.150  __ipipe_unstall_root+0x8 (run_timer_softirq+0x169)
 |   #begin   0x80000000  1961    0.123  __ipipe_unstall_root+0x53 (run_timer_softirq+0x169)
 |   +end     0x80000000  1961    0.127  __ipipe_unstall_root+0x45 (run_timer_softirq+0x169)
     +func                1961    0.131  ipipe_check_context+0x11 (__do_softirq+0xaa)
     +func                1962    0.123  __ipipe_stall_root+0x12 (__do_softirq+0xaf)
 |   +begin   0x80000001  1962    0.195  __ipipe_stall_root+0x5b (__do_softirq+0xaf)
 |   #end     0x80000001  1962    0.135  __ipipe_stall_root+0x41 (__do_softirq+0xaf)
     #func                1962    0.157  _local_bh_enable+0xb (__do_softirq+0xe2)
     #func                1962    0.127  __ipipe_test_root+0x12 (_local_bh_enable+0x20)
 |   #begin   0x80000001  1962    0.112  __ipipe_test_root+0x4b (_local_bh_enable+0x20)
 |   #end     0x80000001  1962    0.135  __ipipe_test_root+0x6a (_local_bh_enable+0x20)
     #func                1963    0.116  __ipipe_restore_root+0x8 (do_softirq+0x68)
     #func                1963    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  1963    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  1963    0.127  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                1963    0.127  ipipe_check_context+0x11 (irq_exit+0x54)
     #func                1963    0.146  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  1963    0.112  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  1963    0.345  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0xffffffff  1964    0.127  common_interrupt+0x38 (mwait_idle_with_hints+0x4e)
 |   #func                1964    0.120  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  1964    0.300  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
     +func                1964    0.180  ipipe_suspend_domain+0xe (cpu_idle+0x82)
 |   +begin   0x80000001  1964    0.120  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
 |   +end     0x80000001  1965    0.146  ipipe_suspend_domain+0xef (cpu_idle+0x82)
     +func                1965    0.108  mwait_idle+0x8 (cpu_idle+0x84)
     +func                1965    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
 |   +begin   0x80000000  1965    0.123  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
 |   +end     0x80000000  1965    0.127  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
     +func                1965  3974.091  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
 |   +begin   0xffffffff  5939    0.127  common_interrupt+0x29 (mwait_idle_with_hints+0x4e)
 |   +func                5939    0.176  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
 |   +func                5940    0.123  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0x1e4)
 |   +func                5940    0.142  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
 |   +func                5940    0.139  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   +func                5940    0.142  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
 |   #end     0x80000000  5940    0.169  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                5940    0.135  do_IRQ+0xd (__ipipe_sync_stage+0x1a8)
     #func                5940    0.116  handle_fasteoi_irq+0x14 (do_IRQ+0x47)
     #func                5941    0.116  _spin_lock+0x9 (handle_fasteoi_irq+0x2a)
     #func                5941    0.161  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                5941    0.116  handle_IRQ_event+0xe (handle_fasteoi_irq+0x76)
     #func                5941    0.146  timer_interrupt+0xa (handle_IRQ_event+0x31)
     #func                5941    0.112  _spin_lock+0x9 (timer_interrupt+0x14)
     #func                5941    0.184  ipipe_check_context+0x11 (_spin_lock+0x15)
 |   #begin   0x80000001  5941    2.051  timer_interrupt+0xd2 (handle_IRQ_event+0x31)
 |   #end     0x80000001  5943    0.142  timer_interrupt+0xc5 (handle_IRQ_event+0x31)
     #func                5944    0.135  do_timer+0xe (timer_interrupt+0x6a)
     #func                5944    0.191  read_tsc+0x8 (do_timer+0x38)
     #func                5944    0.184  current_tick_length+0x8 (do_timer+0x101)
     #func                5944    0.123  clocksource_get_next+0x8 (do_timer+0x232)
     #func                5944    0.116  _spin_lock_irqsave+0x12 (clocksource_get_next+0x12)
     #func                5944    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     #func                5944    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   #begin   0x80000001  5945    0.135  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  5945    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                5945    0.154  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                5945    0.139  _spin_unlock_irqrestore+0x8 (clocksource_get_next+0x42)
     #func                5945    0.120  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x1a)
     #func                5945    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  5945    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  5946    0.131  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                5946    0.123  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x24)
     #func                5946    0.123  tsc_update_callback+0x14 (do_timer+0x480)
     #func                5946    0.116  smp_send_timer_broadcast_ipi+0x8 (timer_interrupt+0xa6)
     #func                5946    0.116  rthal_broadcast_to_local_timers+0x8 (handle_IRQ_event+0x31)
     #func                5946    0.127  send_IPI_mask_bitmask+0xe (rthal_broadcast_to_local_timers+0x20)
 |   #begin   0x80000001  5946    0.146  send_IPI_mask_bitmask+0x80 (rthal_broadcast_to_local_timers+0x20)
 |   #end     0x80000001  5946    0.368  send_IPI_mask_bitmask+0x6b (rthal_broadcast_to_local_timers+0x20)
 |   #begin   0xffffff1f  5947    0.123  apic_timer_interrupt+0x2e (send_IPI_mask_bitmask+0x6d)
 |   #func                5947    0.217  __ipipe_handle_irq+0xe (apic_timer_interrupt+0x33)
 |   #func                5947    0.142  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0x1e4)
 |   #func                5947    0.161  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   #end     0xffffff1f  5947    0.315  apic_timer_interrupt+0x3d (send_IPI_mask_bitmask+0x6d)
     #func                5948    0.120  ipipe_check_context+0x11 (handle_IRQ_event+0x59)
     #func                5948    0.131  __ipipe_stall_root+0x12 (handle_IRQ_event+0x5e)
 |   #begin   0x80000001  5948    0.135  __ipipe_stall_root+0x5b (handle_IRQ_event+0x5e)
 |   #end     0x80000001  5948    0.150  __ipipe_stall_root+0x41 (handle_IRQ_event+0x5e)
     #func                5948    0.120  note_interrupt+0x14 (handle_fasteoi_irq+0xb3)
     #func                5948    0.112  _spin_lock+0x9 (handle_fasteoi_irq+0x88)
     #func                5949    0.154  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                5949    0.116  ack_apic+0x8 (handle_fasteoi_irq+0x97)
     #func                5949    0.123  irq_exit+0x8 (do_IRQ+0x4c)
     #func                5949    0.184  ipipe_check_context+0x11 (irq_exit+0x43)
     #func                5949    0.169  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  5949    0.176  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  5949    0.300  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0x80000000  5950    0.236  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                5950    0.139  smp_apic_timer_interrupt+0x9 (__ipipe_sync_stage+0x1a8)
     #func                5950    0.127  profile_tick+0x12 (smp_apic_timer_interrupt+0x45)
     #func                5950    0.169  profile_pc+0x12 (profile_tick+0x57)
     #func                5950    0.139  in_lock_functions+0x8 (profile_pc+0x47)
     #func                5951    0.116  update_process_times+0x16 (smp_apic_timer_interrupt+0x70)
     #func                5951    0.142  account_system_time+0x14 (update_process_times+0x81)
     #func                5951    0.112  run_local_timers+0x8 (update_process_times+0x3b)
     #func                5951    0.120  raise_softirq+0x16 (run_local_timers+0x12)
     #func                5951    0.123  ipipe_check_context+0x11 (raise_softirq+0x24)
     #func                5951    0.131  __ipipe_test_and_stall_root+0x16 (raise_softirq+0x29)
 |   #begin   0x80000001  5951    0.217  __ipipe_test_and_stall_root+0x6b (raise_softirq+0x29)
 |   #end     0x80000001  5952    0.150  __ipipe_test_and_stall_root+0x47 (raise_softirq+0x29)
     #func                5952    0.120  __ipipe_restore_root+0x8 (raise_softirq+0x87)
     #func                5952    0.131  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  5952    0.139  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  5952    0.187  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                5952    0.154  softlockup_tick+0x14 (run_local_timers+0x17)
     #func                5952    0.112  rcu_pending+0x9 (update_process_times+0x42)
     #func                5953    0.120  __rcu_pending+0x8 (rcu_pending+0x21)
     #func                5953    0.184  __rcu_pending+0x8 (rcu_pending+0x42)
     #func                5953    0.116  scheduler_tick+0xe (update_process_times+0x54)
     #func                5953    0.240  sched_clock+0x12 (scheduler_tick+0x18)
     #func                5953    0.139  run_posix_cpu_timers+0xe (update_process_times+0x5b)
     #func                5953    0.127  __ipipe_test_root+0x12 (run_posix_cpu_timers+0x21)
 |   #begin   0x80000001  5953    0.116  __ipipe_test_root+0x4b (run_posix_cpu_timers+0x21)
 |   #end     0x80000001  5954    0.150  __ipipe_test_root+0x6a (run_posix_cpu_timers+0x21)
     #func                5954    0.195  irq_exit+0x8 (smp_apic_timer_interrupt+0x75)
     #func                5954    0.116  do_softirq+0x12 (irq_exit+0x4a)
     #func                5954    0.123  ipipe_check_context+0x11 (do_softirq+0x3c)
     #func                5954    0.123  __ipipe_test_and_stall_root+0x16 (do_softirq+0x41)
 |   #begin   0x80000001  5954    0.139  __ipipe_test_and_stall_root+0x6b (do_softirq+0x41)
 |   #end     0x80000001  5954    0.187  __ipipe_test_and_stall_root+0x47 (do_softirq+0x41)
     #func                5955    0.120  __do_softirq+0xe (do_softirq+0x78)
     #func                5955    0.127  __ipipe_unstall_root+0x8 (__do_softirq+0x6c)
 |   #begin   0x80000000  5955    0.123  __ipipe_unstall_root+0x53 (__do_softirq+0x6c)
 |   +end     0x80000000  5955    0.180  __ipipe_unstall_root+0x45 (__do_softirq+0x6c)
     +func                5955    0.116  run_timer_softirq+0xe (__do_softirq+0x83)
     +func                5955    0.157  hrtimer_run_queues+0xe (run_timer_softirq+0x29)
     +func                5955    0.184  _spin_lock_irq+0x9 (hrtimer_run_queues+0xd7)
     +func                5956    0.123  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                5956    0.123  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  5956    0.135  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  5956    0.214  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                5956    0.150  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                5956    0.150  __ipipe_unstall_root+0x8 (hrtimer_run_queues+0x102)
 |   #begin   0x80000000  5957    0.123  __ipipe_unstall_root+0x53 (hrtimer_run_queues+0x102)
 |   +end     0x80000000  5957    0.184  __ipipe_unstall_root+0x45 (hrtimer_run_queues+0x102)
     +func                5957    0.112  _spin_lock_irq+0x9 (run_timer_softirq+0x3e)
     +func                5957    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                5957    0.127  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  5957    0.131  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  5957    0.127  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                5957    0.165  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                5958    0.127  __ipipe_unstall_root+0x8 (run_timer_softirq+0x169)
 |   #begin   0x80000000  5958    0.214  __ipipe_unstall_root+0x53 (run_timer_softirq+0x169)
 |   +end     0x80000000  5958    0.127  __ipipe_unstall_root+0x45 (run_timer_softirq+0x169)
     +func                5958    0.123  ipipe_check_context+0x11 (__do_softirq+0xaa)
     +func                5958    0.180  __ipipe_stall_root+0x12 (__do_softirq+0xaf)
 |   +begin   0x80000001  5958    0.131  __ipipe_stall_root+0x5b (__do_softirq+0xaf)
 |   #end     0x80000001  5959    0.135  __ipipe_stall_root+0x41 (__do_softirq+0xaf)
     #func                5959    0.127  _local_bh_enable+0xb (__do_softirq+0xe2)
     #func                5959    0.131  __ipipe_test_root+0x12 (_local_bh_enable+0x20)
 |   #begin   0x80000001  5959    0.108  __ipipe_test_root+0x4b (_local_bh_enable+0x20)
 |   #end     0x80000001  5959    0.139  __ipipe_test_root+0x6a (_local_bh_enable+0x20)
     #func                5959    0.116  __ipipe_restore_root+0x8 (do_softirq+0x68)
     #func                5959    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  5959    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  5960    0.127  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                5960    0.142  ipipe_check_context+0x11 (irq_exit+0x54)
     #func                5960    0.154  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  5960    0.116  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  5960    0.319  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0xffffffff  5960    0.139  common_interrupt+0x38 (mwait_idle_with_hints+0x4e)
 |   #func                5961    0.120  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  5961    0.278  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
     +func                5961    0.139  ipipe_suspend_domain+0xe (cpu_idle+0x82)
 |   +begin   0x80000001  5961    0.131  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
 |   +end     0x80000001  5961    0.157  ipipe_suspend_domain+0xef (cpu_idle+0x82)
     +func                5961    0.131  mwait_idle+0x8 (cpu_idle+0x84)
     +func                5962    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
 |   +begin   0x80000000  5962    0.131  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
 |   +end     0x80000000  5962    0.131  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
     +func                5962  1318.160  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
 |   +begin   0xffffffef  7280    0.123  common_interrupt+0x29 (mwait_idle_with_hints+0x4e)
 |   +func                7280    0.187  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
 |   +func                7280    0.120  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0x1e4)
 |   +func                7280    0.139  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
 |   +func                7281    0.157  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   +func                7281    0.150  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
 |   #end     0x80000000  7281    0.169  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                7281    0.146  do_IRQ+0xd (__ipipe_sync_stage+0x1a8)
     #func                7281    0.116  handle_fasteoi_irq+0x14 (do_IRQ+0x47)
     #func                7281    0.112  _spin_lock+0x9 (handle_fasteoi_irq+0x2a)
     #func                7281    0.165  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                7282    0.142  handle_IRQ_event+0xe (handle_fasteoi_irq+0x76)
     #func                7282    0.142  __ipipe_unstall_root+0x8 (handle_IRQ_event+0x6d)
 |   #begin   0x80000000  7282    0.139  __ipipe_unstall_root+0x53 (handle_IRQ_event+0x6d)
 |   +end     0x80000000  7282    0.499  __ipipe_unstall_root+0x45 (handle_IRQ_event+0x6d)
     +func                7283    0.146  __wake_up+0x14 (i915_driver_irq_handler+0xbc [i915])
     +func                7283    0.112  _spin_lock_irqsave+0x12 (__wake_up+0x20)
     +func                7283    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     +func                7283    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   +begin   0x80000001  7283    0.142  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  7283    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                7283    0.154  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                7284    0.139  __wake_up_common+0xe (__wake_up+0x3c)
     #func                7284    0.116  _spin_unlock_irqrestore+0x8 (__wake_up+0x45)
     #func                7284    0.127  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
     #func                7284    0.142  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  7284    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  7284    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                7284    0.139  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
     +func                7284    0.112  _spin_lock_irqsave+0x12 (drm_vbl_send_signals+0x17 [drm])
     +func                7285    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     +func                7285    0.127  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   +begin   0x80000001  7285    0.135  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  7285    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                7285    0.165  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                7285    0.139  _spin_unlock_irqrestore+0x8 (i915_driver_irq_handler+0xc3 [i915])
     #func                7285    0.127  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
     #func                7285    0.139  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  7286    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  7286    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                7286    0.142  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
     +func                7286    0.131  ipipe_check_context+0x11 (handle_IRQ_event+0x59)
     +func                7286    0.123  __ipipe_stall_root+0x12 (handle_IRQ_event+0x5e)
 |   +begin   0x80000001  7286    0.135  __ipipe_stall_root+0x5b (handle_IRQ_event+0x5e)
 |   #end     0x80000001  7286    0.127  __ipipe_stall_root+0x41 (handle_IRQ_event+0x5e)
     #func                7287    0.157  note_interrupt+0x14 (handle_fasteoi_irq+0xb3)
     #func                7287    0.127  _spin_lock+0x9 (handle_fasteoi_irq+0x88)
     #func                7287    0.191  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                7287    0.150  ack_ioapic_quirk_irq+0x9 (handle_fasteoi_irq+0x97)
     #func                7287    0.131  irq_exit+0x8 (do_IRQ+0x4c)
     #func                7287    0.127  ipipe_check_context+0x11 (irq_exit+0x43)
     #func                7287    0.139  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  7288    0.112  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  7288    0.323  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0xffffffef  7288    0.139  common_interrupt+0x38 (mwait_idle_with_hints+0x4e)
 |   #func                7288    0.131  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  7288    0.278  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
     +func                7289    0.127  ipipe_suspend_domain+0xe (cpu_idle+0x82)
 |   +begin   0x80000001  7289    0.120  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
 |   +end     0x80000001  7289    0.146  ipipe_suspend_domain+0xef (cpu_idle+0x82)
     +func                7289    0.108  mwait_idle+0x8 (cpu_idle+0x84)
     +func                7289    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
 |   +begin   0x80000000  7289    0.135  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
 |   +end     0x80000000  7289    0.127  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
     +func                7289  1242.689  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
 |   +begin   0xffffff16  8532    0.112  ipipe_ipi3+0x2e (mwait_idle_with_hints+0x4e)
 |   +func                8532    0.165  __ipipe_handle_irq+0xe (ipipe_ipi3+0x33)
 |   +func                8532    0.157  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0xe7)
 |   +func                8533    0.123  __ipipe_dispatch_wired+0x14 (__ipipe_handle_irq+0x7d)
 |  # func                8533    0.150  xnintr_clock_handler+0x8 (__ipipe_dispatch_wired+0xbe)
 |  # func                8533    0.240  xnintr_irq_handler+0xe (xnintr_clock_handler+0x17)
 |  # func                8533    0.191  xnpod_announce_tick+0x8 (xnintr_irq_handler+0xa6)
 |  # func                8533    0.210  xntimer_do_tick_aperiodic+0xe (xnpod_announce_tick+0x44)
 |  # func                8533    0.150  xnthread_timeout_handler+0x8 (xntimer_do_tick_aperiodic+0x222)
 |  # func                8534    0.150  xnpod_resume_thread+0xe (xnthread_timeout_handler+0x1e)
 |  # [   -1] -<?>-   99  8534    0.308  xnpod_resume_thread+0x7e (xnthread_timeout_handler+0x1e)
 |  # func                8534    0.187  xnpod_schedule+0xe (xnintr_irq_handler+0x1f5)
 |  # [    0] -<?>-   -1  8534    0.593  xnpod_schedule+0x503 (xnintr_irq_handler+0x1f5)
 |  # [   -1] -<?>-   99  8535    0.221  xnpod_schedule+0x327 (xnpod_suspend_thread+0x257)
 |  # func                8535    0.131  __ipipe_restore_pipeline_head+0x11 (rtdm_task_sleep_until+0xec)
 |  + end     0x80000000  8535    0.176  __ipipe_restore_pipeline_head+0x96 (rtdm_task_sleep_until+0xec)
 |  + begin   0x80000000  8535    0.169  tdma_worker+0x785 [tdma] (xnarch_thread_redirect+0x25)
 |  # func                8536    0.154  __ipipe_restore_pipeline_head+0x11 (tdma_worker+0x775 [tdma])
 |  + end     0x80000000  8536    0.154  __ipipe_restore_pipeline_head+0x96 (tdma_worker+0x775 [tdma])
    + func                8536    0.131  tdma_xmit_sync_frame+0xe [tdma] (tdma_worker+0x467 [tdma])
    + func                8536    0.123  alloc_rtskb+0xb [rtnet] (tdma_xmit_sync_frame+0x25 [tdma])
 |  + begin   0x80000000  8536    0.266  alloc_rtskb+0xcb [rtnet] (tdma_xmit_sync_frame+0x25 [tdma])
 |  # func                8536    0.154  __ipipe_restore_pipeline_head+0x11 (alloc_rtskb+0xd7 [rtnet])
 |  + end     0x80000000  8537    0.180  __ipipe_restore_pipeline_head+0x96 (alloc_rtskb+0xd7 [rtnet])
    + func                8537    0.247  rt_eth_header+0x14 [rtnet] (tdma_xmit_sync_frame+0x93 [tdma])
    + func                8537    0.157  rtcap_xmit_hook+0xe [rtcap] (tdma_xmit_sync_frame+0x119 [tdma])
 |  + begin   0x80000000  8537    0.251  rtcap_xmit_hook+0x191 [rtcap] (tdma_xmit_sync_frame+0x119 [tdma])
 |  # func                8537    0.150  __ipipe_restore_pipeline_head+0x11 (rtcap_xmit_hook+0x19d [rtcap])
 |  + end     0x80000000  8538    0.131  __ipipe_restore_pipeline_head+0x96 (rtcap_xmit_hook+0x19d [rtcap])
    + func                8538    0.229  xnpod_get_time+0x14 (rtcap_xmit_hook+0xd6 [rtcap])
 |  + begin   0x80000000  8538    0.176  rtcap_xmit_hook+0x1db [rtcap] (tdma_xmit_sync_frame+0x119 [tdma])
 |  # func                8538    0.165  __ipipe_restore_pipeline_head+0x11 (rtcap_xmit_hook+0x1c9 [rtcap])
 |  + end     0x80000000  8538    0.139  __ipipe_restore_pipeline_head+0x96 (rtcap_xmit_hook+0x1c9 [rtcap])
    + func                8538    0.135  ipipe_trigger_irq+0xd (rtcap_xmit_hook+0x173 [rtcap])
 |  + begin   0x80000001  8539    0.146  ipipe_trigger_irq+0x3f (rtcap_xmit_hook+0x173 [rtcap])
 |  + func                8539    0.240  __ipipe_handle_irq+0xe (ipipe_trigger_irq+0xbb)
 |  + func                8539    0.180  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |  + end     0x80000001  8539    0.150  ipipe_trigger_irq+0xc5 (rtcap_xmit_hook+0x173 [rtcap])
    + func                8539    0.161  e1000_xmit_frame+0xe [rt_e1000] (rtcap_xmit_hook+0x17e [rtcap])
 |  + begin   0x80000000  8539    0.172  e1000_xmit_frame+0x470 [rt_e1000] (rtcap_xmit_hook+0x17e [rtcap])
 |  # func                8540    0.161  __ipipe_restore_pipeline_head+0x11 (e1000_xmit_frame+0x48f [rt_e1000])
 |  + end     0x80000000  8540    0.255  __ipipe_restore_pipeline_head+0x96 (e1000_xmit_frame+0x48f [rt_e1000])
 |  + begin   0x80000000  8540    0.135  e1000_xmit_frame+0x480 [rt_e1000] (rtcap_xmit_hook+0x17e [rtcap])
 |  # func                8540    0.274  xnpod_get_time+0x14 (e1000_xmit_frame+0x35e [rt_e1000])
 |  # func                8540    0.169  __ipipe_restore_pipeline_head+0x11 (e1000_xmit_frame+0x3be [rt_e1000])
 |  + end     0x80000000  8541    0.154  __ipipe_restore_pipeline_head+0x96 (e1000_xmit_frame+0x3be [rt_e1000])
    + func                8541    0.127  _rtdm_synch_flush+0xb (tdma_xmit_sync_frame+0x12c [tdma])
 |  + begin   0x80000000  8541    0.187  _rtdm_synch_flush+0xf8 (tdma_xmit_sync_frame+0x12c [tdma])
 |  # func                8541    0.180  xnsynch_flush+0xe (_rtdm_synch_flush+0x63)
 |  # func                8541    0.184  __ipipe_restore_pipeline_head+0x11 (_rtdm_synch_flush+0xa2)
 |  + end     0x80000000  8541    0.142  __ipipe_restore_pipeline_head+0x96 (_rtdm_synch_flush+0xa2)
 |  + begin   0x80000000  8542    0.225  tdma_worker+0x6de [tdma] (xnarch_thread_redirect+0x25)
 |  # func                8542    0.172  __ipipe_restore_pipeline_head+0x11 (tdma_worker+0x6ff [tdma])
 |  + end     0x80000000  8542    0.131  __ipipe_restore_pipeline_head+0x96 (tdma_worker+0x6ff [tdma])
    + func                8542    0.139  rtdm_task_sleep_until+0xe (tdma_worker+0x5fa [tdma])
 |  + begin   0x80000000  8542    0.161  rtdm_task_sleep_until+0x14b (tdma_worker+0x5fa [tdma])
 |  # func                8542    0.240  xnpod_get_time+0x14 (rtdm_task_sleep_until+0x75)
 |  # func                8543    0.169  xnpod_suspend_thread+0xe (rtdm_task_sleep_until+0xa9)
 |  # func                8543    0.139  xntimer_set_sched+0xe (xnpod_suspend_thread+0x1f9)
 |  # func                8543    0.383  xntimer_do_start_aperiodic+0xe (xnpod_suspend_thread+0x21a)
 |  # func                8543    0.165  xnpod_schedule+0xe (xnpod_suspend_thread+0x257)
 |  # [   -1] -<?>-   99  8543    0.409  xnpod_schedule+0x503 (xnpod_suspend_thread+0x257)
 |  # func                8544    0.308  __switch_to+0xe (xnpod_schedule+0x218)
 |  # [    0] -<?>-   -1  8544    0.368  xnpod_schedule+0x327 (xnintr_irq_handler+0x1f5)
 |   +func                8545    0.139  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   +func                8545    0.139  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
 |   #end     0x80000000  8545    0.191  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                8545    0.383  rtcap_signal_handler+0xe [rtcap] (__ipipe_sync_stage+0x1ea)
 |   #begin   0xffffffea  8545    0.139  common_interrupt+0x29 (rtcap_signal_handler+0x225 [rtcap])
 |   #func                8546    0.169  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
 |   #func                8546    0.146  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0xe7)
 |   #func                8546    0.131  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
 |   #func                8546    0.142  __ipipe_dispatch_wired+0x14 (__ipipe_handle_irq+0x7d)
 |  #*func                8546    0.285  xnintr_irq_handler+0xe (__ipipe_dispatch_wired+0xbe)
 |  #*func                8546    0.999  e1000_intr+0x11 [rt_e1000] (xnintr_irq_handler+0xa6)
 |  #*func                8547    0.443  xnpod_get_time+0x14 (e1000_intr+0x39 [rt_e1000])
 |  #*func                8548    0.210  e1000_alloc_rx_buffers+0xe [rt_e1000] (e1000_intr+0x3fb [rt_e1000])
 |  #*func                8548    0.319  alloc_rtskb+0xb [rtnet] (e1000_alloc_rx_buffers+0x149 [rt_e1000])
 |  #*func                8548    0.135  e1000_unmap_and_free_tx_resource+0x9 [rt_e1000] (e1000_intr+0x2d8 [rt_e1000])
 |  #*func                8549    0.326  kfree_rtskb+0xe [rtnet] (e1000_unmap_and_free_tx_resource+0x16 [rt_e1000])
 |  #*func                8549    0.135  e1000_alloc_rx_buffers+0xe [rt_e1000] (e1000_intr+0x3fb [rt_e1000])
 |  #*func                8549    0.323  alloc_rtskb+0xb [rtnet] (e1000_alloc_rx_buffers+0x149 [rt_e1000])
 |  #*func                8549    0.116  rthal_irq_end+0x8 (xnintr_irq_handler+0x1d9)
 |  #*func                8549    0.142  __ipipe_end_fasteoi_irq+0x8 (rthal_irq_end+0x24)
 |  #*func                8550    0.296  ack_ioapic_quirk_irq+0x9 (__ipipe_end_fasteoi_irq+0xe)
 |   #func                8550    0.202  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   #end     0xffffffea  8550    0.315  common_interrupt+0x38 (rtcap_signal_handler+0x225 [rtcap])
 |   #begin   0x80000000  8550    0.169  rtcap_signal_handler+0x230 [rtcap] (__ipipe_sync_stage+0x1ea)
 |  *#func                8551    0.180  __ipipe_restore_pipeline_head+0x11 (rtcap_signal_handler+0x23c [rtcap])
 |   #end     0x80000000  8551    0.210  __ipipe_restore_pipeline_head+0x96 (rtcap_signal_handler+0x23c [rtcap])
     #func                8551    0.176  __alloc_skb+0xe (rtcap_signal_handler+0x111 [rtcap])
     #func                8551    0.116  kmem_cache_alloc+0x14 (__alloc_skb+0x30)
     #func                8551    0.123  ipipe_check_context+0x11 (kmem_cache_alloc+0x29)
     #func                8551    0.127  __ipipe_test_and_stall_root+0x16 (kmem_cache_alloc+0x2e)
 |   #begin   0x80000001  8551    0.150  __ipipe_test_and_stall_root+0x6b (kmem_cache_alloc+0x2e)
 |   #end     0x80000001  8552    0.150  __ipipe_test_and_stall_root+0x47 (kmem_cache_alloc+0x2e)
     #func                8552    0.120  __ipipe_restore_root+0x8 (kmem_cache_alloc+0x6c)
     #func                8552    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  8552    0.150  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  8552    0.135  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                8552    0.127  __kmalloc+0xe (__alloc_skb+0x4d)
     #func                8552    0.120  ipipe_check_context+0x11 (__kmalloc+0x4e)
     #func                8553    0.127  __ipipe_test_and_stall_root+0x16 (__kmalloc+0x53)
 |   #begin   0x80000001  8553    0.135  __ipipe_test_and_stall_root+0x6b (__kmalloc+0x53)
 |   #end     0x80000001  8553    0.157  __ipipe_test_and_stall_root+0x47 (__kmalloc+0x53)
     #func                8553    0.154  __ipipe_restore_root+0x8 (__kmalloc+0x8e)
     #func                8553    0.142  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  8553    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  8553    0.221  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                8554    0.217  eth_type_trans+0xa (rtcap_signal_handler+0x276 [rtcap])
     #func                8554    0.157  rtcap_kfree_rtskb+0xa [rtcap] (rtcap_signal_handler+0x2dc [rtcap])
 |   #begin   0x80000000  8554    0.157  rtcap_kfree_rtskb+0x16b [rtcap] (rtcap_signal_handler+0x2dc [rtcap])
 |  *#func                8554    0.191  __ipipe_restore_pipeline_head+0x11 (rtcap_kfree_rtskb+0x187 [rtcap])
 |   #end     0x80000000  8554    0.202  __ipipe_restore_pipeline_head+0x96 (rtcap_kfree_rtskb+0x187 [rtcap])
 |   #begin   0x80000000  8555    0.232  rtcap_kfree_rtskb+0x17b [rtcap] (rtcap_signal_handler+0x2dc [rtcap])
 |  *#func                8555    0.191  __ipipe_restore_pipeline_head+0x11 (rtcap_kfree_rtskb+0x122 [rtcap])
 |   #end     0x80000000  8555    0.165  __ipipe_restore_pipeline_head+0x96 (rtcap_kfree_rtskb+0x122 [rtcap])
     #func                8555    0.169  netif_rx+0xe (rtcap_signal_handler+0x2fc [rtcap])
     #func                8555    0.157  ipipe_check_context+0x11 (netif_rx+0x77)
     #func                8555    0.123  __ipipe_test_and_stall_root+0x16 (netif_rx+0x7c)
 |   #begin   0x80000001  8556    0.139  __ipipe_test_and_stall_root+0x6b (netif_rx+0x7c)
 |   #end     0x80000001  8556    0.176  __ipipe_test_and_stall_root+0x47 (netif_rx+0x7c)
     #func                8556    0.157  __netif_rx_schedule+0x16 (netif_rx+0x195)
     #func                8556    0.135  ipipe_check_context+0x11 (__netif_rx_schedule+0x24)
     #func                8556    0.127  __ipipe_test_and_stall_root+0x16 (__netif_rx_schedule+0x29)
 |   #begin   0x80000001  8556    0.135  __ipipe_test_and_stall_root+0x6b (__netif_rx_schedule+0x29)
 |   #end     0x80000001  8556    0.180  __ipipe_test_and_stall_root+0x47 (__netif_rx_schedule+0x29)
     #func                8557    0.116  __ipipe_restore_root+0x8 (__netif_rx_schedule+0x98)
     #func                8557    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  8557    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  8557    0.169  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                8557    0.120  __ipipe_restore_root+0x8 (netif_rx+0x126)
     #func                8557    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  8557    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  8558    0.142  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
 |   #begin   0x80000000  8558    0.195  rtcap_signal_handler+0x230 [rtcap] (__ipipe_sync_stage+0x1ea)
 |  *#func                8558    0.191  __ipipe_restore_pipeline_head+0x11 (rtcap_signal_handler+0x333 [rtcap])
 |   #end     0x80000000  8558    0.161  __ipipe_restore_pipeline_head+0x96 (rtcap_signal_handler+0x333 [rtcap])
     #func                8558    0.154  irq_exit+0x8 (__ipipe_sync_stage+0x1f2)
     #func                8558    0.127  do_softirq+0x12 (irq_exit+0x4a)
     #func                8559    0.123  ipipe_check_context+0x11 (do_softirq+0x3c)
     #func                8559    0.127  __ipipe_test_and_stall_root+0x16 (do_softirq+0x41)
 |   #begin   0x80000001  8559    0.135  __ipipe_test_and_stall_root+0x6b (do_softirq+0x41)
 |   #end     0x80000001  8559    0.139  __ipipe_test_and_stall_root+0x47 (do_softirq+0x41)
     #func                8559    0.139  __do_softirq+0xe (do_softirq+0x78)
     #func                8559    0.127  __ipipe_unstall_root+0x8 (__do_softirq+0x6c)
 |   #begin   0x80000000  8559    0.123  __ipipe_unstall_root+0x53 (__do_softirq+0x6c)
 |   +end     0x80000000  8559    0.180  __ipipe_unstall_root+0x45 (__do_softirq+0x6c)
     +func                8560    0.135  net_rx_action+0xe (__do_softirq+0x83)
     +func                8560    0.120  ipipe_check_context+0x11 (net_rx_action+0x41)
     +func                8560    0.142  __ipipe_stall_root+0x12 (net_rx_action+0x46)
 |   +begin   0x80000001  8560    0.135  __ipipe_stall_root+0x5b (net_rx_action+0x46)
 |   #end     0x80000001  8560    0.150  __ipipe_stall_root+0x41 (net_rx_action+0x46)
     #func                8560    0.127  __ipipe_unstall_root+0x8 (net_rx_action+0x80)
 |   #begin   0x80000000  8560    0.123  __ipipe_unstall_root+0x53 (net_rx_action+0x80)
 |   +end     0x80000000  8561    0.123  __ipipe_unstall_root+0x45 (net_rx_action+0x80)
     +func                8561    0.146  ipipe_check_context+0x11 (net_rx_action+0x94)
     +func                8561    0.142  process_backlog+0xe (net_rx_action+0xdd)
     +func                8561    0.120  ipipe_check_context+0x11 (process_backlog+0x6d)
     +func                8561    0.123  __ipipe_stall_root+0x12 (process_backlog+0x72)
 |   +begin   0x80000001  8561    0.135  __ipipe_stall_root+0x5b (process_backlog+0x72)
 |   #end     0x80000001  8561    0.157  __ipipe_stall_root+0x41 (process_backlog+0x72)
     #func                8562    0.127  __ipipe_unstall_root+0x8 (process_backlog+0x9d)
 |   #begin   0x80000000  8562    0.123  __ipipe_unstall_root+0x53 (process_backlog+0x9d)
 |   +end     0x80000000  8562    0.127  __ipipe_unstall_root+0x45 (process_backlog+0x9d)
     +func                8562    0.161  netif_receive_skb+0xe (process_backlog+0xa7)
     +func                8562    0.259  ipipe_check_context+0x11 (netif_receive_skb+0xc7)
     +func                8562    0.142  local_bh_disable+0x8 (packet_rcv+0x7e [af_packet])
     +func                8563    0.135  sk_run_filter+0x14 (packet_rcv+0x99 [af_packet])
     +func                8563    0.150  local_bh_enable+0xb (packet_rcv+0xa0 [af_packet])
     +func                8563    0.123  __ipipe_test_root+0x12 (local_bh_enable+0x10)
 |   +begin   0x80000001  8563    0.150  __ipipe_test_root+0x4b (local_bh_enable+0x10)
 |   +end     0x80000001  8563    0.165  __ipipe_test_root+0x6a (local_bh_enable+0x10)
     +func                8563    0.176  ipipe_check_context+0x11 (local_bh_enable+0x5a)
     +func                8563    0.150  eth_header_parse+0x8 (packet_rcv+0x109 [af_packet])
     +func                8564    0.116  _spin_lock+0x9 (packet_rcv+0x1cd [af_packet])
     +func                8564    0.184  ipipe_check_context+0x11 (_spin_lock+0x15)
     +func                8564    0.127  sock_def_readable+0x11 (packet_rcv+0x1f7 [af_packet])
     +func                8564    0.112  _read_lock+0x9 (sock_def_readable+0x1e)
     +func                8564    0.157  ipipe_check_context+0x11 (_read_lock+0x15)
     +func                8564    0.131  __wake_up+0x14 (sock_def_readable+0x78)
     +func                8564    0.112  _spin_lock_irqsave+0x12 (__wake_up+0x20)
     +func                8564    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     +func                8565    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   +begin   0x80000001  8565    0.135  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  8565    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                8565    0.154  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                8565    0.187  __wake_up_common+0xe (__wake_up+0x3c)
     #func                8565    0.120  autoremove_wake_function+0x11 (__wake_up_common+0x3e)
     #func                8565    0.116  default_wake_function+0x8 (autoremove_wake_function+0x20)
     #func                8566    0.112  try_to_wake_up+0x14 (default_wake_function+0x10)
     #func                8566    0.123  task_rq_lock+0x14 (try_to_wake_up+0x24)
     #func                8566    0.120  ipipe_check_context+0x11 (task_rq_lock+0x28)
     #func                8566    0.127  __ipipe_test_and_stall_root+0x16 (task_rq_lock+0x2d)
 |   #begin   0x80000001  8566    0.135  __ipipe_test_and_stall_root+0x6b (task_rq_lock+0x2d)
 |   #end     0x80000001  8566    0.142  __ipipe_test_and_stall_root+0x47 (task_rq_lock+0x2d)
     #func                8566    0.116  _spin_lock+0x9 (task_rq_lock+0x52)
     #func                8566    0.161  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                8567    0.154  idle_cpu+0x8 (try_to_wake_up+0x1db)
     #func                8567    0.210  sched_clock+0x12 (try_to_wake_up+0x2be)
     #func                8567    0.165  recalc_task_prio+0xa (try_to_wake_up+0x314)
     #func                8567    0.172  effective_prio+0x9 (recalc_task_prio+0x74)
     #func                8567    0.161  __activate_task+0x12 (try_to_wake_up+0x34e)
     #func                8567    0.161  enqueue_task+0x12 (__activate_task+0x26)
     #func                8568    0.154  resched_task+0x9 (try_to_wake_up+0x40a)
     #func                8568    0.116  _spin_unlock_irqrestore+0x8 (try_to_wake_up+0x54)
     #func                8568    0.116  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x1a)
     #func                8568    0.131  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  8568    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  8568    0.131  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                8568    0.146  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x24)
     #func                8569    0.116  _spin_unlock_irqrestore+0x8 (__wake_up+0x45)
     #func                8569    0.116  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
     #func                8569    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  8569    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  8569    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                8569    0.195  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
     +func                8569    0.161  ipipe_check_context+0x11 (netif_receive_skb+0x225)
     +func                8570    0.127  ipipe_check_context+0x11 (process_backlog+0x6d)
     +func                8570    0.127  __ipipe_stall_root+0x12 (process_backlog+0x72)
 |   +begin   0x80000001  8570    0.131  __ipipe_stall_root+0x5b (process_backlog+0x72)
 |   #end     0x80000001  8570    0.180  __ipipe_stall_root+0x41 (process_backlog+0x72)
     #func                8570    0.184  __ipipe_unstall_root+0x8 (process_backlog+0x12b)
 |   #begin   0x80000000  8570    0.123  __ipipe_unstall_root+0x53 (process_backlog+0x12b)
 |   +end     0x80000000  8570    0.127  __ipipe_unstall_root+0x45 (process_backlog+0x12b)
     +func                8571    0.180  ipipe_check_context+0x11 (net_rx_action+0xfe)
     +func                8571    0.120  ipipe_check_context+0x11 (net_rx_action+0x10f)
     +func                8571    0.123  __ipipe_stall_root+0x12 (net_rx_action+0x114)
 |   +begin   0x80000001  8571    0.135  __ipipe_stall_root+0x5b (net_rx_action+0x114)
 |   #end     0x80000001  8571    0.127  __ipipe_stall_root+0x41 (net_rx_action+0x114)
     #func                8571    0.127  ipipe_check_context+0x11 (net_rx_action+0x137)
     #func                8571    0.120  ipipe_check_context+0x11 (net_rx_action+0x19a)
     #func                8571    0.127  __ipipe_unstall_root+0x8 (net_rx_action+0x19f)
 |   #begin   0x80000000  8572    0.123  __ipipe_unstall_root+0x53 (net_rx_action+0x19f)
 |   +end     0x80000000  8572    0.123  __ipipe_unstall_root+0x45 (net_rx_action+0x19f)
     +func                8572    0.123  ipipe_check_context+0x11 (__do_softirq+0xaa)
     +func                8572    0.123  __ipipe_stall_root+0x12 (__do_softirq+0xaf)
 |   +begin   0x80000001  8572    0.135  __ipipe_stall_root+0x5b (__do_softirq+0xaf)
 |   #end     0x80000001  8572    0.135  __ipipe_stall_root+0x41 (__do_softirq+0xaf)
     #func                8572    0.139  _local_bh_enable+0xb (__do_softirq+0xe2)
     #func                8573    0.127  __ipipe_test_root+0x12 (_local_bh_enable+0x20)
 |   #begin   0x80000001  8573    0.112  __ipipe_test_root+0x4b (_local_bh_enable+0x20)
 |   #end     0x80000001  8573    0.139  __ipipe_test_root+0x6a (_local_bh_enable+0x20)
     #func                8573    0.120  __ipipe_restore_root+0x8 (do_softirq+0x68)
     #func                8573    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  8573    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  8573    0.146  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                8573    0.195  ipipe_check_context+0x11 (irq_exit+0x54)
     #func                8574    0.142  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  8574    0.127  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  8574    0.345  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0xffffff16  8574    0.131  ipipe_ipi3+0x3d (mwait_idle_with_hints+0x4e)
 |   #func                8574    0.146  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  8575    0.296  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
     +func                8575    0.142  ipipe_check_context+0x11 (cpu_idle+0x9c)
     +func                8575    0.112  __sched_text_start+0xe (cpu_idle+0xa1)
     +func                8575    0.127  ipipe_check_context+0x11 (__sched_text_start+0x18)
     +func                8575    0.154  ipipe_check_context+0x11 (__sched_text_start+0x66)
     +func                8575    0.184  sched_clock+0x12 (__sched_text_start+0xa5)
     +func                8576    0.112  _spin_lock_irq+0x9 (__sched_text_start+0x11b)
     +func                8576    0.123  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                8576    0.123  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  8576    0.135  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  8576    0.127  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                8576    0.202  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                8576    0.131  recalc_task_prio+0xa (__sched_text_start+0x5f9)
     #func                8576    0.236  effective_prio+0x9 (recalc_task_prio+0x74)
 |   #begin   0x80000000  8577    0.255  __sched_text_start+0x5a1 (cpu_idle+0xa1)
 |   #func                8577    0.266  __switch_to+0xe (__sched_text_start+0x423)
 |   #end     0x80000000  8577    0.176  __sched_text_start+0x590 (schedule_timeout+0x76)
     #func                8577    0.150  __ipipe_unstall_root+0x8 (__sched_text_start+0x4dc)
 |   #begin   0x80000000  8578    0.123  __ipipe_unstall_root+0x53 (__sched_text_start+0x4dc)
 |   +end     0x80000000  8578    0.154  __ipipe_unstall_root+0x45 (__sched_text_start+0x4dc)
     +func                8578    0.184  ipipe_check_context+0x11 (__sched_text_start+0x513)
     +func                8578    0.146  finish_wait+0x16 (skb_recv_datagram+0x133)
     +func                8578    0.116  skb_dequeue+0x16 (skb_recv_datagram+0x146)
     +func                8578    0.112  _spin_lock_irqsave+0x12 (skb_dequeue+0x22)
     +func                8578    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     +func                8579    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   +begin   0x80000001  8579    0.135  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  8579    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                8579    0.157  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                8579    0.116  _spin_unlock_irqrestore+0x8 (skb_dequeue+0x49)
     #func                8579    0.112  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
     #func                8579    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  8579    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  8580    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                8580    0.184  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
     +func                8580    0.131  skb_copy_datagram_iovec+0xe (packet_recvmsg+0xb7 [af_packet])
     +func                8580    0.150  memcpy_toiovec+0xe (skb_copy_datagram_iovec+0x141)
     +func                8580    0.127  copy_to_user+0xb (memcpy_toiovec+0x4c)
     +func                8580    0.123  ipipe_check_context+0x11 (copy_to_user+0x36)
     +func                8580    0.127  cond_resched+0x8 (copy_to_user+0x3b)
     +func                8581    0.308  __copy_to_user_ll+0xa (copy_to_user+0x46)
     +func                8581    0.112  skb_free_datagram+0x8 (packet_recvmsg+0x159 [af_packet])
     +func                8581    0.131  kfree_skb+0x8 (skb_free_datagram+0xf)
     +func                8581    0.142  __kfree_skb+0xd (kfree_skb+0x23)
     +func                8581    0.139  sock_rfree+0x8 (__kfree_skb+0x56)
     +func                8581    0.120  kfree_skbmem+0x9 (__kfree_skb+0x9a)
     +func                8581    0.142  skb_release_data+0xa (kfree_skbmem+0x10)
     +func                8582    0.142  kfree+0xb (skb_release_data+0x5e)
     +func                8582    0.120  ipipe_check_context+0x11 (kfree+0x1b)
     +func                8582    0.123  __ipipe_test_and_stall_root+0x16 (kfree+0x20)
 |   +begin   0x80000001  8582    0.135  __ipipe_test_and_stall_root+0x6b (kfree+0x20)
 |   #end     0x80000001  8582    0.165  __ipipe_test_and_stall_root+0x47 (kfree+0x20)
     #func                8582    0.127  __ipipe_restore_root+0x8 (kfree+0x75)
     #func                8582    0.142  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  8583    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  8583    0.131  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                8583    0.157  kmem_cache_free+0xe (kfree_skbmem+0x3d)
     +func                8583    0.120  ipipe_check_context+0x11 (kmem_cache_free+0x40)
     +func                8583    0.123  __ipipe_test_and_stall_root+0x16 (kmem_cache_free+0x45)
 |   +begin   0x80000001  8583    0.135  __ipipe_test_and_stall_root+0x6b (kmem_cache_free+0x45)
 |   #end     0x80000001  8583    0.139  __ipipe_test_and_stall_root+0x47 (kmem_cache_free+0x45)
     #func                8584    0.154  __ipipe_restore_root+0x8 (kmem_cache_free+0x86)
     #func                8584    0.142  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  8584    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  8584    0.210  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                8584    0.165  move_addr_to_user+0x16 (sys_recvfrom+0xbd)
     +func                8584    0.116  copy_to_user+0xb (move_addr_to_user+0x65)
     +func                8584    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
     +func                8585    0.112  cond_resched+0x8 (copy_to_user+0x3b)
     +func                8585    0.270  __copy_to_user_ll+0xa (copy_to_user+0x46)
     +func                8585    0.139  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
 |   +begin   0x80000001  8585    0.135  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
 |   #end     0x80000001  8585    0.139  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
     #func                8585    0.127  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
 |   #begin   0x80000000  8585    0.116  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
 |   +end     0x8000000d  8586    0.462  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
     +func                8586    0.157  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
 |   +begin   0x80000001  8586    0.161  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
 |   +end     0x80000001  8586    0.199  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
     +func                8587    0.131  sys_ioctl+0x14 (sysenter_past_esp+0x6c)
     +func                8587    0.139  fget_light+0x16 (sys_ioctl+0x27)
     +func                8587    0.127  dummy_file_ioctl+0x8 (sys_ioctl+0x3e)
     +func                8587    0.135  vfs_ioctl+0x14 (sys_ioctl+0x70)
     +func                8587    0.123  do_ioctl+0x14 (vfs_ioctl+0x5c)
     +func                8587    0.221  sock_ioctl+0x14 (do_ioctl+0x2d)
     +func                8587    0.116  sock_get_timestamp+0x16 (sock_ioctl+0xa8)
     +func                8588    0.116  copy_to_user+0xb (sock_get_timestamp+0x4c)
     +func                8588    0.120  ipipe_check_context+0x11 (copy_to_user+0x36)
     +func                8588    0.112  cond_resched+0x8 (copy_to_user+0x3b)
     +func                8588    0.172  __copy_to_user_ll+0xa (copy_to_user+0x46)
     +func                8588    0.127  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
 |   +begin   0x80000001  8588    0.131  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
 |   #end     0x80000001  8588    0.139  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
     #func                8588    0.131  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
 |   #begin   0x80000000  8589    0.112  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
 |   +end     0x8000000d  8589    0.867  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
     +func                8590    0.127  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
 |   +begin   0x80000001  8590    0.112  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
 |   +end     0x80000001  8590    0.169  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
     +func                8590    0.116  sys_time+0xc (sysenter_past_esp+0x6c)
     +func                8590    0.127  do_gettimeofday+0xe (sys_time+0x17)
     +func                8590    0.214  read_tsc+0x8 (do_gettimeofday+0x38)
     +func                8590    0.127  __ipipe_stall_root+0x12 (sysenter_tail+0x5)
 |   +begin   0x80000001  8591    0.131  __ipipe_stall_root+0x5b (sysenter_tail+0x5)
 |   #end     0x80000001  8591    0.139  __ipipe_stall_root+0x41 (sysenter_tail+0x5)
     #func                8591    0.131  __ipipe_unstall_iret_root+0x9 (sysenter_exit+0x0)
 |   #begin   0x80000000  8591    0.112  __ipipe_unstall_iret_root+0x9b (sysenter_exit+0x0)
 |   +end     0x8000000d  8591    0.428  __ipipe_unstall_iret_root+0x38 (sysenter_exit+0x0)
     +func                8592    0.150  __ipipe_syscall_root+0xb (sysenter_past_esp+0x44)
 |   +begin   0x80000001  8592    0.127  __ipipe_syscall_root+0x171 (sysenter_past_esp+0x44)
 |   +end     0x80000001  8592    0.169  __ipipe_syscall_root+0x161 (sysenter_past_esp+0x44)
     +func                8592    0.165  sys_socketcall+0xc (sysenter_past_esp+0x6c)
     +func                8592    0.135  copy_from_user+0xb (sys_socketcall+0x36)
     +func                8592    0.120  ipipe_check_context+0x11 (copy_from_user+0x34)
     +func                8592    0.116  cond_resched+0x8 (copy_from_user+0x39)
     +func                8593    0.240  __copy_from_user_ll+0xa (copy_from_user+0x44)
     +func                8593    0.127  sys_recvfrom+0x11 (sys_socketcall+0x1bb)
     +func                8593    0.120  fget_light+0x16 (sys_recvfrom+0x1f)
     +func                8593    0.135  sock_from_file+0x11 (sys_recvfrom+0x38)
     +func                8593    0.169  sock_recvmsg+0x11 (sys_recvfrom+0x98)
     +func                8593    0.135  dummy_socket_recvmsg+0x8 (sock_recvmsg+0xda)
     +func                8593    0.165  skb_recv_datagram+0xe (packet_recvmsg+0x6b [af_packet])
     +func                8594    0.123  skb_dequeue+0x16 (skb_recv_datagram+0x146)
     +func                8594    0.112  _spin_lock_irqsave+0x12 (skb_dequeue+0x22)
     +func                8594    0.123  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     +func                8594    0.131  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   +begin   0x80000001  8594    0.199  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  8594    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                8594    0.184  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                8595    0.123  _spin_unlock_irqrestore+0x8 (skb_dequeue+0x49)
     #func                8595    0.123  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
     #func                8595    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  8595    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  8595    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                8595    0.154  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
     +func                8595    0.131  prepare_to_wait_exclusive+0x14 (skb_recv_datagram+0xd9)
     +func                8596    0.112  _spin_lock_irqsave+0x12 (prepare_to_wait_exclusive+0x22)
     +func                8596    0.120  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     +func                8596    0.123  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   +begin   0x80000001  8596    0.135  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  8596    0.131  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                8596    0.176  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                8596    0.116  _spin_unlock_irqrestore+0x8 (prepare_to_wait_exclusive+0x57)
     #func                8596    0.112  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x2d)
     #func                8597    0.127  __ipipe_unstall_root+0x8 (__ipipe_restore_root+0x18)
 |   #begin   0x80000000  8597    0.123  __ipipe_unstall_root+0x53 (__ipipe_restore_root+0x18)
 |   +end     0x80000000  8597    0.123  __ipipe_unstall_root+0x45 (__ipipe_restore_root+0x18)
     +func                8597    0.135  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x37)
     +func                8597    0.116  schedule_timeout+0x11 (skb_recv_datagram+0x125)
     +func                8597    0.142  __sched_text_start+0xe (schedule_timeout+0x76)
     +func                8597    0.123  ipipe_check_context+0x11 (__sched_text_start+0x18)
     +func                8597    0.123  ipipe_check_context+0x11 (__sched_text_start+0x66)
     +func                8598    0.172  sched_clock+0x12 (__sched_text_start+0xa5)
     +func                8598    0.112  _spin_lock_irq+0x9 (__sched_text_start+0x11b)
     +func                8598    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                8598    0.127  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  8598    0.131  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  8598    0.127  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                8598    0.184  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                8599    0.165  deactivate_task+0x9 (__sched_text_start+0x4ad)
     #func                8599    0.161  dequeue_task+0x12 (deactivate_task+0x1f)
     #func                8599    0.180  find_busiest_group+0xe (__sched_text_start+0x878)
     #func                8599    0.123  __first_cpu+0x8 (find_busiest_group+0x375)
     #func                8599    0.146  __first_cpu+0x8 (find_busiest_group+0xe5)
     #func                8599    0.139  idle_cpu+0x8 (find_busiest_group+0x18c)
     #func                8599    0.127  __next_cpu+0x9 (find_busiest_group+0x13b)
     #func                8600    0.225  find_next_bit+0xe (__next_cpu+0x1a)
     #func                8600    0.240  __first_cpu+0x8 (find_busiest_group+0xe5)
     #func                8600    0.131  __next_cpu+0x9 (find_busiest_group+0x13b)
     #func                8600    0.296  find_next_bit+0xe (__next_cpu+0x1a)
 |   #begin   0x80000000  8601    0.184  __sched_text_start+0x5a1 (schedule_timeout+0x76)
 |   #func                8601    0.251  __switch_to+0xe (__sched_text_start+0x423)
 |   #end     0x80000000  8601    0.139  __sched_text_start+0x590 (cpu_idle+0xa1)
     #func                8601    0.142  __ipipe_unstall_root+0x8 (__sched_text_start+0x4dc)
 |   #begin   0x80000000  8601    0.127  __ipipe_unstall_root+0x53 (__sched_text_start+0x4dc)
 |   +end     0x80000000  8601    0.123  __ipipe_unstall_root+0x45 (__sched_text_start+0x4dc)
     +func                8601    0.157  ipipe_check_context+0x11 (__sched_text_start+0x513)
     +func                8602    0.139  ipipe_check_context+0x11 (cpu_idle+0xab)
     +func                8602    0.127  ipipe_suspend_domain+0xe (cpu_idle+0x82)
 |   +begin   0x80000001  8602    0.135  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
 |   +end     0x80000001  8602    0.157  ipipe_suspend_domain+0xef (cpu_idle+0x82)
     +func                8602    0.123  mwait_idle+0x8 (cpu_idle+0x84)
     +func                8602    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
 |   +begin   0x80000000  8602    0.135  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
 |   +end     0x80000000  8603    0.123  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
     +func                8603  389.099  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
 |   +begin   0xffffff16  8992    0.127  ipipe_ipi3+0x2e (mwait_idle_with_hints+0x4e)
 |   +func                8992    0.165  __ipipe_handle_irq+0xe (ipipe_ipi3+0x33)
 |   +func                8992    0.139  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0xe7)
 |   +func                8992    0.146  __ipipe_dispatch_wired+0x14 (__ipipe_handle_irq+0x7d)
 |  # func                8992    0.142  xnintr_clock_handler+0x8 (__ipipe_dispatch_wired+0xbe)
 |  # func                8993    0.225  xnintr_irq_handler+0xe (xnintr_clock_handler+0x17)
 |  # func                8993    0.210  xnpod_announce_tick+0x8 (xnintr_irq_handler+0xa6)
 |  # func                8993    0.217  xntimer_do_tick_aperiodic+0xe (xnpod_announce_tick+0x44)
 |  # func                8993    0.146  xnthread_timeout_handler+0x8 (xntimer_do_tick_aperiodic+0x222)
 |  # func                8993    0.150  xnpod_resume_thread+0xe (xnthread_timeout_handler+0x1e)
 |  # [   -1] -<?>-   99  8993    0.315  xnpod_resume_thread+0x7e (xnthread_timeout_handler+0x1e)
 |  # func                8994    0.165  xnpod_schedule+0xe (xnintr_irq_handler+0x1f5)
 |  # [    0] -<?>-   -1  8994    0.653  xnpod_schedule+0x503 (xnintr_irq_handler+0x1f5)
 |  # [   -1] -<?>-   99  8995    0.217  xnpod_schedule+0x327 (xnpod_suspend_thread+0x257)
 |  # func                8995    0.131  __ipipe_restore_pipeline_head+0x11 (rtdm_task_sleep_until+0xec)
 |  + end     0x80000000  8995    0.221  __ipipe_restore_pipeline_head+0x96 (rtdm_task_sleep_until+0xec)
 |  + begin   0x80000000  8995    0.210  tdma_worker+0x6ee [tdma] (xnarch_thread_redirect+0x25)
 |  # func                8995    0.157  __ipipe_restore_pipeline_head+0x11 (tdma_worker+0x794 [tdma])
 |  + end     0x80000000  8996    0.131  __ipipe_restore_pipeline_head+0x96 (tdma_worker+0x794 [tdma])
    + func                8996    0.135  rtdm_task_sleep_until+0xe (tdma_worker+0x3cd [tdma])
 |  + begin   0x80000000  8996    0.161  rtdm_task_sleep_until+0x14b (tdma_worker+0x3cd [tdma])
 |  # func                8996    0.247  xnpod_get_time+0x14 (rtdm_task_sleep_until+0x75)
 |  # func                8996    0.184  xnpod_suspend_thread+0xe (rtdm_task_sleep_until+0xa9)
 |  # func                8996    0.199  xntimer_set_sched+0xe (xnpod_suspend_thread+0x1f9)
 |  # func                8997    0.349  xntimer_do_start_aperiodic+0xe (xnpod_suspend_thread+0x21a)
 |  # func                8997    0.157  xnpod_schedule+0xe (xnpod_suspend_thread+0x257)
 |  # [   -1] -<?>-   99  8997    0.469  xnpod_schedule+0x503 (xnpod_suspend_thread+0x257)
 |  # func                8998    0.330  __switch_to+0xe (xnpod_schedule+0x218)
 |  # [    0] -<?>-   -1  8998    0.338  xnpod_schedule+0x327 (xnintr_irq_handler+0x1f5)
 |   +func                8998    0.180  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   #end     0xffffff16  8998    0.146  ipipe_ipi3+0x3d (mwait_idle_with_hints+0x4e)
 |   #func                8999    0.131  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  8999    0.296  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
     +func                8999    0.123  ipipe_suspend_domain+0xe (cpu_idle+0x82)
 |   +begin   0x80000001  8999    0.142  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
 |   +end     0x80000001  8999    0.127  ipipe_suspend_domain+0xef (cpu_idle+0x82)
     +func                8999    0.108  mwait_idle+0x8 (cpu_idle+0x84)
     +func                9000    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
 |   +begin   0x80000000  9000    0.131  __ipipe_unstall_root+0x53 (mwait_idle+0xd)
 |   +end     0x80000000  9000    0.131  __ipipe_unstall_root+0x45 (mwait_idle+0xd)
     +func                9000  937.485  mwait_idle_with_hints+0x16 (mwait_idle+0x16)
 |   +begin   0xffffffff  9937    0.127  common_interrupt+0x29 (mwait_idle_with_hints+0x4e)
 |   +func                9938    0.210  __ipipe_handle_irq+0xe (common_interrupt+0x2e)
 |   +func                9938    0.142  __ipipe_ack_irq+0x8 (__ipipe_handle_irq+0x1e4)
 |   +func                9938    0.150  __ipipe_ack_fasteoi_irq+0x8 (__ipipe_ack_irq+0x19)
 |   +func                9938    0.184  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   +func                9938    0.146  __ipipe_sync_stage+0xe (__ipipe_walk_pipeline+0xcb)
 |   #end     0x80000000  9938    0.172  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                9939    0.154  do_IRQ+0xd (__ipipe_sync_stage+0x1a8)
     #func                9939    0.116  handle_fasteoi_irq+0x14 (do_IRQ+0x47)
     #func                9939    0.116  _spin_lock+0x9 (handle_fasteoi_irq+0x2a)
     #func                9939    0.195  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                9939    0.139  handle_IRQ_event+0xe (handle_fasteoi_irq+0x76)
     #func                9939    0.112  timer_interrupt+0xa (handle_IRQ_event+0x31)
     #func                9939    0.116  _spin_lock+0x9 (timer_interrupt+0x14)
     #func                9939    0.184  ipipe_check_context+0x11 (_spin_lock+0x15)
 |   #begin   0x80000001  9940    2.047  timer_interrupt+0xd2 (handle_IRQ_event+0x31)
 |   #end     0x80000001  9942    0.142  timer_interrupt+0xc5 (handle_IRQ_event+0x31)
     #func                9942    0.120  do_timer+0xe (timer_interrupt+0x6a)
     #func                9942    0.210  read_tsc+0x8 (do_timer+0x38)
     #func                9942    0.191  current_tick_length+0x8 (do_timer+0x101)
     #func                9942    0.131  clocksource_get_next+0x8 (do_timer+0x232)
     #func                9942    0.116  _spin_lock_irqsave+0x12 (clocksource_get_next+0x12)
     #func                9943    0.161  ipipe_check_context+0x11 (_spin_lock_irqsave+0x1e)
     #func                9943    0.150  __ipipe_test_and_stall_root+0x16 (_spin_lock_irqsave+0x23)
 |   #begin   0x80000001  9943    0.135  __ipipe_test_and_stall_root+0x6b (_spin_lock_irqsave+0x23)
 |   #end     0x80000001  9943    0.135  __ipipe_test_and_stall_root+0x47 (_spin_lock_irqsave+0x23)
     #func                9943    0.154  ipipe_check_context+0x11 (_spin_lock_irqsave+0x38)
     #func                9943    0.127  _spin_unlock_irqrestore+0x8 (clocksource_get_next+0x42)
     #func                9943    0.120  __ipipe_restore_root+0x8 (_spin_unlock_irqrestore+0x1a)
     #func                9944    0.123  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  9944    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  9944    0.131  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                9944    0.139  ipipe_check_context+0x11 (_spin_unlock_irqrestore+0x24)
     #func                9944    0.139  tsc_update_callback+0x14 (do_timer+0x480)
     #func                9944    0.123  smp_send_timer_broadcast_ipi+0x8 (timer_interrupt+0xa6)
     #func                9944    0.191  rthal_broadcast_to_local_timers+0x8 (handle_IRQ_event+0x31)
     #func                9945    0.127  send_IPI_mask_bitmask+0xe (rthal_broadcast_to_local_timers+0x20)
 |   #begin   0x80000001  9945    0.157  send_IPI_mask_bitmask+0x80 (rthal_broadcast_to_local_timers+0x20)
 |   #end     0x80000001  9945    0.368  send_IPI_mask_bitmask+0x6b (rthal_broadcast_to_local_timers+0x20)
 |   #begin   0xffffff1f  9945    0.116  apic_timer_interrupt+0x2e (send_IPI_mask_bitmask+0x6d)
 |   #func                9945    0.221  __ipipe_handle_irq+0xe (apic_timer_interrupt+0x33)
 |   #func                9946    0.135  __ipipe_ack_apic+0x8 (__ipipe_handle_irq+0x1e4)
 |   #func                9946    0.150  __ipipe_walk_pipeline+0xb (__ipipe_handle_irq+0xb0)
 |   #end     0xffffff1f  9946    0.300  apic_timer_interrupt+0x3d (send_IPI_mask_bitmask+0x6d)
     #func                9946    0.135  ipipe_check_context+0x11 (handle_IRQ_event+0x59)
     #func                9946    0.127  __ipipe_stall_root+0x12 (handle_IRQ_event+0x5e)
 |   #begin   0x80000001  9946    0.135  __ipipe_stall_root+0x5b (handle_IRQ_event+0x5e)
 |   #end     0x80000001  9947    0.146  __ipipe_stall_root+0x41 (handle_IRQ_event+0x5e)
     #func                9947    0.150  note_interrupt+0x14 (handle_fasteoi_irq+0xb3)
     #func                9947    0.120  _spin_lock+0x9 (handle_fasteoi_irq+0x88)
     #func                9947    0.184  ipipe_check_context+0x11 (_spin_lock+0x15)
     #func                9947    0.142  ack_apic+0x8 (handle_fasteoi_irq+0x97)
     #func                9947    0.120  irq_exit+0x8 (do_IRQ+0x4c)
     #func                9947    0.127  ipipe_check_context+0x11 (irq_exit+0x43)
     #func                9948    0.202  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  9948    0.112  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  9948    0.383  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0x80000000  9948    0.176  __ipipe_sync_stage+0x171 (__ipipe_walk_pipeline+0xcb)
     #func                9948    0.161  smp_apic_timer_interrupt+0x9 (__ipipe_sync_stage+0x1a8)
     #func                9949    0.139  profile_tick+0x12 (smp_apic_timer_interrupt+0x45)
     #func                9949    0.161  profile_pc+0x12 (profile_tick+0x57)
     #func                9949    0.135  in_lock_functions+0x8 (profile_pc+0x47)
     #func                9949    0.150  update_process_times+0x16 (smp_apic_timer_interrupt+0x70)
     #func                9949    0.146  account_system_time+0x14 (update_process_times+0x81)
     #func                9949    0.112  run_local_timers+0x8 (update_process_times+0x3b)
     #func                9949    0.120  raise_softirq+0x16 (run_local_timers+0x12)
     #func                9950    0.172  ipipe_check_context+0x11 (raise_softirq+0x24)
     #func                9950    0.127  __ipipe_test_and_stall_root+0x16 (raise_softirq+0x29)
 |   #begin   0x80000001  9950    0.161  __ipipe_test_and_stall_root+0x6b (raise_softirq+0x29)
 |   #end     0x80000001  9950    0.139  __ipipe_test_and_stall_root+0x47 (raise_softirq+0x29)
     #func                9950    0.161  __ipipe_restore_root+0x8 (raise_softirq+0x87)
     #func                9950    0.180  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  9950    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  9951    0.139  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                9951    0.225  softlockup_tick+0x14 (run_local_timers+0x17)
     #func                9951    0.123  rcu_pending+0x9 (update_process_times+0x42)
     #func                9951    0.123  __rcu_pending+0x8 (rcu_pending+0x21)
     #func                9951    0.157  __rcu_pending+0x8 (rcu_pending+0x42)
     #func                9951    0.123  scheduler_tick+0xe (update_process_times+0x54)
     #func                9952    0.255  sched_clock+0x12 (scheduler_tick+0x18)
     #func                9952    0.120  run_posix_cpu_timers+0xe (update_process_times+0x5b)
     #func                9952    0.191  __ipipe_test_root+0x12 (run_posix_cpu_timers+0x21)
 |   #begin   0x80000001  9952    0.112  __ipipe_test_root+0x4b (run_posix_cpu_timers+0x21)
 |   #end     0x80000001  9952    0.139  __ipipe_test_root+0x6a (run_posix_cpu_timers+0x21)
     #func                9952    0.123  irq_exit+0x8 (smp_apic_timer_interrupt+0x75)
     #func                9952    0.184  do_softirq+0x12 (irq_exit+0x4a)
     #func                9953    0.120  ipipe_check_context+0x11 (do_softirq+0x3c)
     #func                9953    0.127  __ipipe_test_and_stall_root+0x16 (do_softirq+0x41)
 |   #begin   0x80000001  9953    0.135  __ipipe_test_and_stall_root+0x6b (do_softirq+0x41)
 |   #end     0x80000001  9953    0.191  __ipipe_test_and_stall_root+0x47 (do_softirq+0x41)
     #func                9953    0.135  __do_softirq+0xe (do_softirq+0x78)
     #func                9953    0.127  __ipipe_unstall_root+0x8 (__do_softirq+0x6c)
 |   #begin   0x80000000  9953    0.123  __ipipe_unstall_root+0x53 (__do_softirq+0x6c)
 |   +end     0x80000000  9954    0.199  __ipipe_unstall_root+0x45 (__do_softirq+0x6c)
     +func                9954    0.150  run_timer_softirq+0xe (__do_softirq+0x83)
     +func                9954    0.161  hrtimer_run_queues+0xe (run_timer_softirq+0x29)
     +func                9954    0.184  _spin_lock_irq+0x9 (hrtimer_run_queues+0xd7)
     +func                9954    0.123  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                9954    0.123  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  9955    0.135  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  9955    0.199  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                9955    0.157  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                9955    0.127  __ipipe_unstall_root+0x8 (hrtimer_run_queues+0x102)
 |   #begin   0x80000000  9955    0.123  __ipipe_unstall_root+0x53 (hrtimer_run_queues+0x102)
 |   +end     0x80000000  9955    0.135  __ipipe_unstall_root+0x45 (hrtimer_run_queues+0x102)
     +func                9955    0.112  _spin_lock_irq+0x9 (run_timer_softirq+0x3e)
     +func                9956    0.120  ipipe_check_context+0x11 (_spin_lock_irq+0x15)
     +func                9956    0.187  __ipipe_stall_root+0x12 (_spin_lock_irq+0x1a)
 |   +begin   0x80000001  9956    0.131  __ipipe_stall_root+0x5b (_spin_lock_irq+0x1a)
 |   #end     0x80000001  9956    0.127  __ipipe_stall_root+0x41 (_spin_lock_irq+0x1a)
     #func                9956    0.251  ipipe_check_context+0x11 (_spin_lock_irq+0x24)
     #func                9956    0.142  __ipipe_unstall_root+0x8 (run_timer_softirq+0x169)
 |   #begin   0x80000000  9957    0.123  __ipipe_unstall_root+0x53 (run_timer_softirq+0x169)
 |   +end     0x80000000  9957    0.127  __ipipe_unstall_root+0x45 (run_timer_softirq+0x169)
     +func                9957    0.123  ipipe_check_context+0x11 (__do_softirq+0xaa)
     +func                9957    0.123  __ipipe_stall_root+0x12 (__do_softirq+0xaf)
 |   +begin   0x80000001  9957    0.135  __ipipe_stall_root+0x5b (__do_softirq+0xaf)
 |   #end     0x80000001  9957    0.131  __ipipe_stall_root+0x41 (__do_softirq+0xaf)
     #func                9957    0.127  _local_bh_enable+0xb (__do_softirq+0xe2)
     #func                9957    0.127  __ipipe_test_root+0x12 (_local_bh_enable+0x20)
 |   #begin   0x80000001  9958    0.112  __ipipe_test_root+0x4b (_local_bh_enable+0x20)
 |   #end     0x80000001  9958    0.139  __ipipe_test_root+0x6a (_local_bh_enable+0x20)
     #func                9958    0.116  __ipipe_restore_root+0x8 (do_softirq+0x68)
     #func                9958    0.127  __ipipe_stall_root+0x12 (__ipipe_restore_root+0x11)
 |   #begin   0x80000001  9958    0.135  __ipipe_stall_root+0x5b (__ipipe_restore_root+0x11)
 |   #end     0x80000001  9958    0.127  __ipipe_stall_root+0x41 (__ipipe_restore_root+0x11)
     #func                9958    0.127  ipipe_check_context+0x11 (irq_exit+0x54)
     #func                9958    0.142  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   #begin   0x80000000  9959    0.116  __ipipe_unstall_iret_root+0x9b (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  9959    0.319  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
 |   #end     0xffffffff  9959    0.146  common_interrupt+0x38 (mwait_idle_with_hints+0x4e)
 |   #func                9959    0.120  __ipipe_unstall_iret_root+0x9 (restore_nocheck_notrace+0x0)
 |   +end     0x8000000d  9959    0.278  __ipipe_unstall_iret_root+0x38 (restore_nocheck_notrace+0x0)
     +func                9960    0.139  ipipe_suspend_domain+0xe (cpu_idle+0x82)
 |   +begin   0x80000001  9960    0.120  ipipe_suspend_domain+0xe0 (cpu_idle+0x82)
 |   +end     0x80000001  9960    0.146  ipipe_suspend_domain+0xef (cpu_idle+0x82)
     +func                9960    0.108  mwait_idle+0x8 (cpu_idle+0x84)
     +func                9960    0.123  __ipipe_unstall_root+0x8 (mwait_idle+0xd)
 |   +begin   0x80000000  9960    0.000N __ipipe_unstall_root+0x53 (mwait_idle+0xd)
