Hi Gilles,
here is the new trace.
Il 06/03/2012 13:09, Gilles Chanteperdrix ha scritto:
On 03/06/2012 11:14 AM, Roberto Bielli wrote:
Hi,
here is the trace.
Please try to capture the xntimer_next_local_shot which happens before
the bug to see if the timer ticks when expected.
Also note that if we are going through __ipipe_preempt_schedule_irq, it
means that the task eating the cpu is running in secondary mode. So, you
should use T_WARNSW to see.
Please keep the discussion on the mailing list.
--
+------------------------------------------------------------------------------------------------+
Roberto Bielli
Sviluppo Software
Axel S.r.l.
Via Del Cannino, 3
21020 Crosio Della Valle
Varese - Italy
Telefono: +39 0332 949600
Fax: +39 0332 969315
E-mail: [email protected]
Web Site: www.axelsw.it
+------------------------------------------------------------------------------------------------+
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+------------------------------------------------------------------------------------------------+
I-pipe worst-case tracing service on 2.6.31/ipipe-1.16-02
------------------------------------------------------------
CPU: 0, Begin: 413559887374 cycles, Trace Points: 27 (-10/+1), Length: 81 us
Calibrated minimum trace-point overhead: 1.029 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 0x80000001 -126 2.313 __up_read+0x30 (up_read+0x18)
| #end 0x80000001 -124 1.880 __up_read+0x50 (up_read+0x18)
#func -122 1.850 ipipe_check_context+0x10
(__up_read+0x5c)
#func -120 1.522 __ipipe_restore_root+0x10
(__up_read+0x130)
#func -119 1.149 __ipipe_unstall_root+0x10
(__ipipe_restore_root+0x94)
| #begin 0x80000000 -118 1.597 __ipipe_unstall_root+0x34
(__ipipe_restore_root+0x94)
| +end 0x80000000 -116 1.432 __ipipe_unstall_root+0x98
(__ipipe_restore_root+0x94)
+func -115 2.970 ipipe_check_context+0x10
(__up_read+0x138)
+func -112 107.507 __ipipe_check_root+0x10
(ret_from_exception+0x4)
| +func -4 4.656 __ipipe_grab_irq+0x10 (__irq_usr+0x70)
>| +begin 0xffffffff 0+ 2.462 __ipipe_grab_irq+0x5c (__irq_usr+0x70)
:| +func 2+ 3.626 __ipipe_handle_irq+0x14
(__ipipe_grab_irq+0x68)
:| +func 6+ 2.104 __ipipe_ack_timerirq+0x10
(__ipipe_handle_irq+0x9c)
:| +func 8+ 2.805 __ipipe_ack_level_irq+0x10
(__ipipe_ack_timerirq+0x24)
:| +func 11+ 1.776 mxc_mask_irq+0x10
(__ipipe_ack_level_irq+0x3c)
:| +func 12+ 1.686 mxc_mask_irq+0x10
(__ipipe_ack_level_irq+0x54)
:| +func 14+ 1.507 __ipipe_mach_acktimer+0x10
(__ipipe_ack_timerirq+0x28)
:| +func 15+ 1.611 __ipipe_end_level_irq+0x10
(__ipipe_ack_timerirq+0x38)
:| +func 17+ 2.253 mxc_unmask_irq+0x10
(__ipipe_end_level_irq+0x28)
:| +func 19+ 2.283 __ipipe_dispatch_wired+0x10
(__ipipe_handle_irq+0xa8)
:| +func 22+ 2.194 __ipipe_dispatch_wired_nocheck+0x10
(__ipipe_dispatch_wired+0x84)
:| # func 24+ 2.776 xnintr_clock_handler+0x10
(__ipipe_dispatch_wired_nocheck+0x68)
:| # func 27+ 5.388 xntimer_tick_aperiodic+0x14
(xnintr_clock_handler+0x44)
:| # func 32+ 2.313 xnthread_periodic_handler+0x10
(xntimer_tick_aperiodic+0xa8)
:| # func 34+ 4.029 xnpod_resume_thread+0x10
(xnthread_periodic_handler+0x2c)
:| # [ 1411] task2ms 99 38+ 8.686 xnpod_resume_thread+0x6c
(xnthread_periodic_handler+0x2c)
:| # func 47+ 1.656 xnthread_timeout_handler+0x10
(xntimer_tick_aperiodic+0xa8)
:| # func 49+ 2.238 xnpod_resume_thread+0x10
(xnthread_timeout_handler+0x34)
:| # [ 1412] taskPrin 1 51+ 2.477 xnpod_resume_thread+0x6c
(xnthread_timeout_handler+0x34)
:| # func 53+ 3.880 xntimer_next_local_shot+0x10
(xntimer_tick_aperiodic+0x258)
:| # event tick@1969 57+ 2.238 xntimer_next_local_shot+0xcc
(xntimer_tick_aperiodic+0x258)
:| # func 60+ 4.089 __ipipe_mach_set_dec+0x10
(xntimer_next_local_shot+0x110)
:| # func 64+ 3.134 __xnpod_schedule+0x14
(xnintr_clock_handler+0xcc)
:| # [ 1413] cat -1 67+ 2.432 __xnpod_schedule+0x98
(xnintr_clock_handler+0xcc)
:| # func 69+ 9.014 xnsched_pick_next+0x10
(__xnpod_schedule+0x10c)
:| # func 78+ 2.895 ipipe_unstall_pipeline_head+0x10
(__xnpod_schedule+0x2f8)
<| + end 0x80000000 81 2.805 ipipe_unstall_pipeline_head+0x8c
(__xnpod_schedule+0x2f8)
| + begin 0x80000001 84 0.000 __xnpod_schedule+0x398
(xnintr_clock_handler+0xcc)
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