Messages in this thread | | | Date | Thu, 18 Mar 2004 20:20:17 +0100 | From | Takashi Iwai <> | Subject | Re: CONFIG_PREEMPT and server workloads |
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At Thu, 18 Mar 2004 11:18:07 -0800, Andrew Morton wrote: > > Takashi Iwai <tiwai@suse.de> 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. > > heh, you just shrunk my todo list by 0.01%. > > Have you had any useful reports from this feature?
not much yet. i should write this feature in documentation now :)
also, the total buffer underrun/overrun problem doesn't happen *so* often (except for the heavy i/o load, etc).
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