Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.51-12

Chuck Harding
2005-07-08T18:06:10Z

On Fri, 8 Jul 2005, Ingo Molnar wrote:

>
> * Ingo Molnar <mingo@elte.hu> wrote:
>
>> tried it and cannot reproduce it, so i'll need the full backtrace of
>> all tasks in your system, whenever sox gets stuck, via:
>
> managed to reproduce it via your script - and with RT_DEADLOCK_DETECT
> turned on the circular deadlock was immediately detected (see the trace
> below). It turns out this is an upstream locking bug in the sound
> subsystem, which has been fixed already - i've merged the upstream fix
> to -51-14. Could you check whether sox works for you now?
>
> Ingo
>

That did it. I can now hammer the sound system and sox won't hang anymore.
Thanks!!

--
Charles D. (Chuck) Harding <charding@llnl.gov> Voice: 925-423-8879
Senior Computer Associate ICCD Fax: 925-423-6961
Lawrence Livermore National Laboratory Computation Directorate
Livermore, CA USA http://www.llnl.gov GPG Public Key ID: B9EB6601
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