From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Tue, 06 Oct 2009 15:56:00 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-help] Freeze on SMP x86-64
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To: Roman Pisl <rpisl@domain.hid>
Cc: xenomai@xenomai.org

Roman Pisl wrote:
> ...
>>
>> Is there a chance to grab the panic log via serial line? The first of
>> your two screenshots indicate that there might have happened something
>> interesting before the NMI triggered, but it's scrolled out of sight.
>>
>> Jan
>>
> 
> Hello,
> here I send kernel panic (triggered by rt_task_sleep and latency test)
> grabbed via serial line.

Hmm, still only NMI alarms...

> 
> I'm ready to help with resolving this issue.

Could you try enabling the I-pipe tracer with function tracing? It
should dump a trace of the functions that were executed before the
watchdog triggered. You may need to extend the number of tracepoints a
bit, try "echo 1000 > /proc/ipipe/trace/back_trace_points".

Jan

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