On Fri, Oct 12, 2007 at 03:41:19PM +0200, Philippe Gerum wrote:
> It looks like we are still using the TSC emulation over the 8254; I
> don't ever recall if it's supposed to work actually. Now that the
> remaining known issues have been fixed by Jan's latest patch, could you
> switch your CPU config to CORE2, instead of 486? Maybe we'll get lucky.
You won't get away so easy. CPU switched back to CORE2, same behaviour.
New trace:
[EMAIL PROTECTED]:~# cat /proc/ipipe/trace/frozen
I-pipe frozen back-tracing service on 2.6.22.9-xeno/ipipe-1.10-07
------------------------------------------------------------
CPU: 0, Freeze: 224810852352 cycles, Trace Points: 100 (+100)
Calibrated minimum trace-point overhead: 0.090 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)
: +func -32 0.090 ipipe_check_context+0xc
(kmem_cache_alloc+0x27)
: #func -32 0.070 __ipipe_restore_root+0x8
(kmem_cache_alloc+0x68)
: #func -31 0.085 __ipipe_unstall_root+0x8
(__ipipe_restore_root+0x27)
:| #begin 0x80000000 -31 0.085 __ipipe_unstall_root+0x4d
(__ipipe_restore_root+0x27)
:| +end 0x80000000 -31 0.170 __ipipe_unstall_root+0x3f
(__ipipe_restore_root+0x27)
: +func -31 0.090 ipipe_check_context+0xc
(cache_alloc_refill+0x48e)
: #func -31 0.100 ipipe_check_context+0xc
(cache_alloc_refill+0x4a0)
: #func -31 0.095 ipipe_check_context+0xc
(cache_alloc_refill+0x4c9)
: #func -31 0.120 ipipe_check_context+0xc
(cache_alloc_refill+0x6b)
: #func -31 0.140 ipipe_check_context+0xc
(cache_alloc_refill+0x162)
: #func -31 0.080 __ipipe_restore_root+0x8
(__kmalloc+0x8a)
: #func -31 0.085 __ipipe_unstall_root+0x8
(__ipipe_restore_root+0x27)
:| #begin 0x80000000 -30 0.085 __ipipe_unstall_root+0x4d
(__ipipe_restore_root+0x27)
:| +end 0x80000000 -30 0.220 __ipipe_unstall_root+0x3f
(__ipipe_restore_root+0x27)
: +func -30 0.390 xnheap_init+0x14 (xnpod_init+0x24b)
: +func -30+ 7.836 init_extent+0xe (xnheap_init+0x118)
: +func -22 0.320 xnthread_init+0xe (xnpod_init+0x2b5)
: +func -22 0.145 __xntimer_init+0xe (xnthread_init+0x58)
: +func -21 0.090 snprintf+0xb (__xntimer_init+0x96)
: +func -21 0.120 vsnprintf+0xe (snprintf+0x22)
: +func -21 0.220 number+0xe (vsnprintf+0x2f9)
:| +begin 0x80000000 -21 0.115 __xntimer_init+0x14b
(xnthread_init+0x58)
:| *+func -21 0.130 __ipipe_restore_pipeline_head+0x11
(__xntimer_init+0x119)
:| +end 0x80000000 -21 0.175 __ipipe_restore_pipeline_head+0x9e
(__xntimer_init+0x119)
: +func -21 0.110 __xntimer_init+0xe (xnthread_init+0x9f)
: +func -20 0.075 snprintf+0xb (__xntimer_init+0x96)
: +func -20 0.140 vsnprintf+0xe (snprintf+0x22)
: +func -20 0.240 number+0xe (vsnprintf+0x2f9)
:| +begin 0x80000000 -20 0.125 __xntimer_init+0x14b
(xnthread_init+0x9f)
:| *+func -20 0.085 __ipipe_restore_pipeline_head+0x11
(__xntimer_init+0x119)
:| +end 0x80000000 -20 0.475 __ipipe_restore_pipeline_head+0x9e
(__xntimer_init+0x119)
: +func -19 0.205 xnregistry_init+0xb (xnpod_init+0x360)
: +func -19 0.095 rthal_apc_alloc+0x14
(xnregistry_init+0x1c)
:| +begin 0x80000000 -19 0.175 rthal_apc_alloc+0xbc
(xnregistry_init+0x1c)
:| *+func -19 0.120 __ipipe_restore_pipeline_head+0x11
(rthal_apc_alloc+0xaf)
:| +end 0x80000000 -19 0.125 __ipipe_restore_pipeline_head+0x9e
(rthal_apc_alloc+0xaf)
: +func -19 0.205 create_proc_entry+0xd
(xnregistry_init+0x3e)
: +func -18 0.215 proc_create+0x14
(create_proc_entry+0x43)
: +func -18 0.095 __kmalloc+0xe (proc_create+0x95)
: +func -18 0.090 ipipe_check_context+0xc
(__kmalloc+0xb2)
: +func -18 0.080 ipipe_check_context+0xc
(__kmalloc+0x4e)
: #func -18 0.080 __ipipe_restore_root+0x8
(__kmalloc+0x8a)
: #func -18 0.095 __ipipe_unstall_root+0x8
(__ipipe_restore_root+0x27)
:| #begin 0x80000000 -18 0.090 __ipipe_unstall_root+0x4d
(__ipipe_restore_root+0x27)
:| +end 0x80000000 -18 0.155 __ipipe_unstall_root+0x3f
(__ipipe_restore_root+0x27)
: +func -17 0.215 proc_register+0xe
(create_proc_entry+0x61)
: +func -17 0.205 idr_pre_get+0xa (proc_register+0x21)
: +func -17 0.165 ipipe_check_context+0xc
(proc_register+0x2f)
: +func -17 0.170 idr_get_new+0x9 (proc_register+0x3e)
: +func -17 0.285 idr_get_new_above_int+0xe
(idr_get_new+0x12)
: +func -16 0.360 find_next_bit+0xe
(idr_get_new_above_int+0xcd)
: +func -16 0.185 find_next_bit+0xe
(idr_get_new_above_int+0xcd)
: +func -16 0.100 ipipe_check_context+0xc
(proc_register+0x4a)
: +func -16 0.130 ipipe_check_context+0xc
(proc_register+0x7b)
: +func -16! 10.241 ipipe_check_context+0xc
(proc_register+0x91)
: +func -5 0.205 kmem_cache_alloc+0x14
(xnregistry_init+0x13a)
: +func -5 0.080 ipipe_check_context+0xc
(kmem_cache_alloc+0x8a)
: +func -5 0.090 ipipe_check_context+0xc
(kmem_cache_alloc+0x27)
: #func -5 0.090 __ipipe_restore_root+0x8
(kmem_cache_alloc+0x68)
: #func -5 0.095 __ipipe_unstall_root+0x8
(__ipipe_restore_root+0x27)
:| #begin 0x80000000 -5 0.095 __ipipe_unstall_root+0x4d
(__ipipe_restore_root+0x27)
:| +end 0x80000000 -5 0.776 __ipipe_unstall_root+0x3f
(__ipipe_restore_root+0x27)
: +func -4 0.240 xnsynch_init+0x8
(xnregistry_init+0x169)
: +func -4 0.105 xnshadow_grab_events+0x8
(xnpod_init+0x36c)
: +func -4 0.140 ipipe_catch_event+0x14
(xnshadow_grab_events+0x1c)
: +func -4 0.085 ipipe_critical_enter+0x9
(ipipe_catch_event+0x4d)
:| +begin 0x80000001 -3 0.135 ipipe_critical_enter+0x1b
(ipipe_catch_event+0x4d)
:| +func -3 0.080 ipipe_critical_exit+0x9
(ipipe_catch_event+0xc8)
:| +end 0x80000001 -3 0.110 ipipe_critical_exit+0x1a
(ipipe_catch_event+0xc8)
: +func -3 0.105 ipipe_catch_event+0x14
(xnshadow_grab_events+0x30)
: +func -3 0.085 ipipe_critical_enter+0x9
(ipipe_catch_event+0x4d)
:| +begin 0x80000001 -3 0.125 ipipe_critical_enter+0x1b
(ipipe_catch_event+0x4d)
:| +func -3 0.070 ipipe_critical_exit+0x9
(ipipe_catch_event+0xc8)
:| +end 0x80000001 -3 0.125 ipipe_critical_exit+0x1a
(ipipe_catch_event+0xc8)
: +func -3 0.090 ipipe_catch_event+0x14
(xnshadow_grab_events+0x44)
: +func -3 0.085 ipipe_critical_enter+0x9
(ipipe_catch_event+0x4d)
:| +begin 0x80000001 -2 0.110 ipipe_critical_enter+0x1b
(ipipe_catch_event+0x4d)
:| +func -2 0.070 ipipe_critical_exit+0x9
(ipipe_catch_event+0xc8)
:| +end 0x80000001 -2 0.105 ipipe_critical_exit+0x1a
(ipipe_catch_event+0xc8)
: +func -2 0.085 ipipe_catch_event+0x14
(xnshadow_grab_events+0x58)
: +func -2 0.085 ipipe_critical_enter+0x9
(ipipe_catch_event+0x4d)
:| +begin 0x80000001 -2 0.110 ipipe_critical_enter+0x1b
(ipipe_catch_event+0x4d)
:| +func -2 0.075 ipipe_critical_exit+0x9
(ipipe_catch_event+0xc8)
:| +end 0x80000001 -2 0.090 ipipe_critical_exit+0x1a
(ipipe_catch_event+0xc8)
: +func -2 0.080 ipipe_catch_event+0x14
(xnshadow_grab_events+0x6c)
: +func -2 0.085 ipipe_critical_enter+0x9
(ipipe_catch_event+0x4d)
:| +begin 0x80000001 -2 0.105 ipipe_critical_enter+0x1b
(ipipe_catch_event+0x4d)
:| +func -1 0.075 ipipe_critical_exit+0x9
(ipipe_catch_event+0xc8)
:| +end 0x80000001 -1 0.200 ipipe_critical_exit+0x1a
(ipipe_catch_event+0xc8)
: +func -1 0.180 xnpod_enable_timesource+0xd
(xnpod_init+0x371)
:| +begin 0x80000000 -1 0.255 xnpod_enable_timesource+0x15b
(xnpod_init+0x371)
:| *+func -1 0.110 xnintr_init+0x9
(xnpod_enable_timesource+0x69)
:| *+func -1 0.125 __ipipe_restore_pipeline_head+0x11
(xnpod_enable_timesource+0x169)
:| +end 0x80000000 0 0.095 __ipipe_restore_pipeline_head+0x9e
(xnpod_enable_timesource+0x169)
: +func 0 0.085 xnarch_get_host_time+0xc
(xnpod_enable_timesource+0x97)
: +func 0 0.115 do_gettimeofday+0xe
(xnarch_get_host_time+0x14)
: +func 0 0.220 read_tsc+0x8 (do_gettimeofday+0x33)
: +func 0 0.195 xnarch_get_cpu_time+0x8
(xnpod_enable_timesource+0xa0)
: +func 0 0.260 xnarch_tsc_to_ns+0x12
(xnarch_get_cpu_time+0xf)
< +func 0 0.135 rthal_timer_request+0x14
(xnpod_enable_timesource+0xcb)
+func 0 0.090 ipipe_request_tickdev+0x14
(rthal_timer_request+0x27)
+func 0 0.085 ipipe_critical_enter+0x9
(ipipe_request_tickdev+0x28)
| +begin 0x80000001 0 0.220 ipipe_critical_enter+0x1b
(ipipe_request_tickdev+0x28)
| +func 0 0.105 __ipipe_check_tickdev+0x8
(ipipe_request_tickdev+0xc4)
| +func 0 0.070 ipipe_critical_exit+0x9
(ipipe_request_tickdev+0x3c)
| +end 0x80000001 0 0.190 ipipe_critical_exit+0x1a
(ipipe_request_tickdev+0x3c)
| +begin 0x80000001 0 11.123 rthal_timer_request+0x12b
(xnpod_enable_timesource+0xcb)
| +func 12 0.085 __const_udelay+0x8
(rthal_timer_request+0xbe)
| +func 12 0.090 __delay+0x8 (__const_udelay+0x1c)
| +func 12 16.920 delay_tsc+0x9 (__delay+0xe)
| +end 0x80000001 29 0.135 rthal_timer_request+0x13a
(xnpod_enable_timesource+0xcb)
+func 29 0.105 rthal_irq_request+0xc
(rthal_timer_request+0xeb)
+func 29 0.205 ipipe_virtualize_irq+0x14
(rthal_irq_request+0x42)
+func 29 0.095 __ipipe_spin_lock_irqsave+0x9
(ipipe_virtualize_irq+0x76)
| +begin 0x80000001 29 0.170 __ipipe_spin_lock_irqsave+0x4b
(ipipe_virtualize_irq+0x76)
| #func 29 0.120 __ipipe_enable_irqdesc+0x8
(ipipe_virtualize_irq+0x141)
| #func 29 0.095 __ipipe_spin_unlock_irqrestore+0x9
(ipipe_virtualize_irq+0xac)
| +end 0x80000001 30 0.120 __ipipe_spin_unlock_irqrestore+0x36
(ipipe_virtualize_irq+0xac)
| +begin 0x80000000 30 0.205 xnpod_enable_timesource+0x18f
(xnpod_init+0x371)
| *+func 30 0.175 xntimer_start_aperiodic+0xe
(xnpod_enable_timesource+0x1b9)
| *+func 30 0.320 xnarch_ns_to_tsc+0x14
(xntimer_start_aperiodic+0x12d)
| *+func 30 0.190 xntimer_next_local_shot+0x12
(xntimer_start_aperiodic+0x10d)
| *+func 31 0.135 ipipe_trigger_irq+0xd
(xntimer_next_local_shot+0x82)
| *+func 31 0.115 __ipipe_handle_irq+0x14
(ipipe_trigger_irq+0x14c)
| *+func 31 0.130 __ipipe_dispatch_wired+0x16
(__ipipe_handle_irq+0x4f)
| *+func 31 0.160 __ipipe_set_irq_pending+0x16
(__ipipe_dispatch_wired+0xd9)
| *+func 31 0.120 __ipipe_restore_pipeline_head+0x11
(xnpod_enable_timesource+0x179)
| +func 31 0.130 __ipipe_walk_pipeline+0xa
(__ipipe_restore_pipeline_head+0xdc)
| + func 31 0.130 ipipe_suspend_domain+0xe
(__ipipe_walk_pipeline+0x78)
| + func 31 0.285 __ipipe_sync_stage+0xe
(ipipe_suspend_domain+0x84)
| # func 32 0.140 xnintr_clock_handler+0x16
(__ipipe_sync_stage+0x105)
| # func 32 0.185 xntimer_tick_aperiodic+0xe
(xnintr_clock_handler+0x34)
| # func 32 0.205 xntimer_next_local_shot+0x12
(xntimer_tick_aperiodic+0x15c)
| # func 32 0.260 rthal_irq_host_pend+0x8
(xnintr_clock_handler+0xaa)
| # func 33 0.145 __ipipe_schedule_irq+0xe
(rthal_irq_host_pend+0x16)
| # func 33 0.240 __ipipe_set_irq_pending+0x16
(__ipipe_schedule_irq+0x68)
| +func 33 0.125 __ipipe_sync_stage+0xe
(ipipe_suspend_domain+0x84)
| #end 0x80000000 33 0.125 __ipipe_sync_stage+0x192
(ipipe_suspend_domain+0x84)
#func 33 0.090 do_IRQ+0xe (__ipipe_sync_stage+0x1dd)
#func 33 0.095 irq_enter+0x8 (do_IRQ+0x2b)
#func 33 0.075 handle_level_irq+0x16 (do_IRQ+0x38)
#func 33 0.085 ipipe_check_context+0xc
(handle_level_irq+0x24)
#func 34 0.080 ipipe_check_context+0xc
(handle_level_irq+0x5c)
#func 34 0.090 handle_IRQ_event+0xe
(handle_level_irq+0x65)
#func 34 0.100 timer_interrupt+0x8
(handle_IRQ_event+0x31)
#func 34 0.070 tick_handle_periodic+0xe
(timer_interrupt+0x13)
#func 34 0.080 tick_periodic+0x8
(tick_handle_periodic+0x17)
#func 34 0.090 ipipe_check_context+0xc
(tick_periodic+0x3f)
#func 34 0.110 do_timer+0x14 (tick_periodic+0x67)
#func 34 0.110 update_wall_time+0xe (do_timer+0x29)
#func 34 0.175 read_tsc+0x8 (update_wall_time+0x24)
#func 34 0.090 clocksource_get_next+0xa
(update_wall_time+0x212)
#func 35 0.095 ipipe_check_context+0xc
(clocksource_get_next+0x14)
#func 35 0.085 ipipe_check_context+0xc
(clocksource_get_next+0x30)
#func 35 0.090 __ipipe_restore_root+0x8
(clocksource_get_next+0x4a)
#func 35 0.120 ipipe_check_context+0xc
(clocksource_get_next+0x54)
#func 35 0.100 ipipe_check_context+0xc
(tick_periodic+0x78)
#func 35 0.095 update_process_times+0x12
(tick_periodic+0x29)
#func 35 0.105 account_system_time+0x16
(update_process_times+0x71)
#func 35 0.090 run_local_timers+0x8
(update_process_times+0x2f)
#func 35 0.080 raise_softirq+0x16
(run_local_timers+0x12)
#func 35 0.085 ipipe_check_context+0xc
(raise_softirq+0x22)
#func 35 0.100 __ipipe_restore_root+0x8
(raise_softirq+0x6c)
#func 36 0.110 softlockup_tick+0x14
(run_local_timers+0x17)
#func 36 0.075 rcu_pending+0x8
(update_process_times+0x36)
#func 36 0.110 __rcu_pending+0x8 (rcu_pending+0x17)
#func 36 0.085 rcu_check_callbacks+0x8
(update_process_times+0x43)
#func 36 0.120 idle_cpu+0x8 (rcu_check_callbacks+0x45)
#func 36 0.080 __tasklet_schedule+0x16
(rcu_check_callbacks+0x3a)
#func 36 0.080 ipipe_check_context+0xc
(__tasklet_schedule+0x22)
#func 36 0.115 __ipipe_restore_root+0x8
(__tasklet_schedule+0x77)
#func 36 0.090 scheduler_tick+0x16
(update_process_times+0x48)
#func 36 0.110 sched_clock+0x12 (scheduler_tick+0x1b)
#func 37 0.095 idle_cpu+0x8 (scheduler_tick+0x2c)
#func 37 0.075 task_running_tick+0x14
(scheduler_tick+0x5e)
#func 37 0.090 ipipe_check_context+0xc
(task_running_tick+0x3f)
#func 37 0.090 ipipe_check_context+0xc
(task_running_tick+0x95)
#func 37 0.115 run_posix_cpu_timers+0xe
(update_process_times+0x4f)
#func 37 0.090 profile_tick+0x12 (tick_periodic+0x33)
#func 37 0.120 profile_pc+0x8 (profile_tick+0x47)
#func 37 0.125 ipipe_check_context+0xc
(handle_IRQ_event+0x59)
#func 37 0.120 note_interrupt+0xe
(handle_level_irq+0xbb)
#func 37 0.125 ipipe_check_context+0xc
(handle_level_irq+0x79)
#func 38 0.100 enable_8259A_irq+0x16
(handle_level_irq+0x97)
#func 38 0.100 __ipipe_spin_lock_irqsave+0x9
(enable_8259A_irq+0x2b)
| #begin 0x80000001 38 0.105 __ipipe_spin_lock_irqsave+0x4b
(enable_8259A_irq+0x2b)
| #func 38 0.105 __ipipe_spin_unlock_irqrestore+0x9
(enable_8259A_irq+0x6c)
| #end 0x80000001 38 0.140 __ipipe_spin_unlock_irqrestore+0x36
(enable_8259A_irq+0x6c)
#func 38 0.110 ipipe_check_context+0xc
(handle_level_irq+0xa1)
#func 38 0.115 irq_exit+0x8 (do_IRQ+0x3d)
#func 38 0.095 do_softirq+0x12 (irq_exit+0x39)
#func 38 0.120 ipipe_check_context+0xc
(do_softirq+0x3a)
#func 39 0.110 __do_softirq+0xb (do_softirq+0x6d)
#func 39 0.090 __ipipe_unstall_root+0x8
(__do_softirq+0x33)
| #begin 0x80000000 39 0.090 __ipipe_unstall_root+0x4d
(__do_softirq+0x33)
| +end 0x80000000 39 0.135 __ipipe_unstall_root+0x3f
(__do_softirq+0x33)
+func 39 0.110 run_timer_softirq+0xe
(__do_softirq+0x52)
+func 39 0.120 hrtimer_run_queues+0xe
(run_timer_softirq+0x19)
+func 39 0.095 ipipe_check_context+0xc
(hrtimer_run_queues+0xc5)
#func 39 0.000 ipipe_check_context+0xc
(hrtimer_run_queues+0xd7)
--
Stelian Pop <[EMAIL PROTECTED]>
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