Re: [Bug #10616] Horrendous Audio Stutter - current git

From: Parag Warudkar
Date: Sun May 11 2008 - 17:59:32 EST


On Sun, May 11, 2008 at 5:41 PM, Adrian Bunk <bunk@xxxxxxxxxx> wrote:
> On Sun, May 11, 2008 at 05:28:47PM -0400, Parag Warudkar wrote:
>> On Sun, May 11, 2008 at 4:04 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
>> > This message has been generated automatically as a part of a report
>> > of recent regressions.
>> >
>> > The following bug entry is on the current list of known regressions
>> > from 2.6.25. Please verify if it still should be listed.
>> >
>> >
>> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10616
>> > Subject : Horrendous Audio Stutter - current git
>>
>> Still present both in Linus tree and sched-devel - root cause is not
>> yet well understood per Ingo.
>>
>> Worked around by disabling GROUP_SCHED stuff by default (commit
>> aac6abca858386438d9a7233c3471d2ecfa2f704 ).
>
> What causes this regression?

GROUP_SCHED stuff.

>
> Is this commit 018d6db4cb5bbdcd65424a16f2dcca692ed32ae4
> (sched: re-do "sched: fix fair sleepers") that had already been reverted
> in 2.6.25 for causing such regressions or is this caused by a different
> commit?

Both current -git and sched-devel have this problem - that means it's
unrelated to the commit you refer to unless it was reintroduced in a
different form but same effect.

Parag
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