Re: CONFIG_PREEMPT and server workloads

From: Robert Love
Date: Thu Mar 18 2004 - 14:27:08 EST


On Thu, 2004-03-18 at 14:08, Takashi Iwai wrote:

> oh, sorry, maybe i forgot to tell you that it has been already there
> :)
>
> # echo 1 > /proc/asound/card0/pcm0p/xrun_debug
>
> this will show the stacktrace when a buffer overrun/underrun is
> detected in the irq handler. it's not perfect, though.

Excellent!

Has this resulted in anything useful?

With KALLSYMS=y, a lot of users now become intelligent bug testers.

Eh, except that I do not have that procfs entry on my system..

Robert Love


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