Re: [Freebob-devel] [linux-audio-dev] ieee1394 deadlock on RT kernels

From: Pieter Palmers <pieterp@email-addr-hidden>
Date: Tue Jun 27 2006 - 22:20:31 EEST

Lee Revell wrote:
> On Mon, 2006-06-26 at 22:35 +0200, Pieter Palmers wrote:
>> Another strange thing is: why doesn't the tasklet finish, so that it
>> can be 'unscheduled'? I have my IRQ priorities higher than any other
>> RT threads, so I would expect that the tasklet can finish. Or is
>> tasklet_kill not-preemtible? that would be very strange as I would
>> expect that busy waiting on something in a non-preemptible code path
>> on a single-cpu system always deadlocks.
>
> When are you going to report this to Ingo + LKML + the other -rt
> developers?
>
After I do the printk testing to pinpoint the problem a little more
precise (as you suggested yesterday).

However, I didn't feel like iterating through the recompile
kernel/crash/reboot cycle even more yesterday.

Is there any underlying reason for this question?

Pieter
Received on Wed Jun 28 00:15:05 2006

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