Re: 2.6.24-rc6-git12: Reported regressions from 2.6.23

[Parag Warudkar]

On Jan 6, 2008 2:11 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
>
> On Sunday, 6 of January 2008, Parag Warudkar wrote:
> > On Jan 6, 2008 7:57 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > > On Sunday, 6 of January 2008, Ingo Molnar wrote:
> > > >
> > > > * Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > > >
> > > > > Subject             : soft lockup - CPU#1 stuck for 15s! [swapper:0]
> > > > > Submitter   : "Parag Warudkar" <parag.warudkar@xxxxxxxxx>
> > > > > Date                : 2007-12-07 18:14
> > > > > References  : http://lkml.org/lkml/2007/12/7/299
> > > > >               http://bugzilla.kernel.org/show_bug.cgi?id=9525
> > > > > Handled-By  : "Pallipadi, Venkatesh" <venkatesh.pallipadi@xxxxxxxxx>
> > > > >               Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > > > >               Ingo Molnar <mingo@xxxxxxx>
> > > >
> > > > i think this only occurs with cpuidle, right? drivers/cpuidle/ and
> > > > CPU_IDLE is new in 2.6.24 so this appears to be a bug in that code (or a
> > > > bug elsewhere triggered by that code), not a regression from v2.6.23.
> > >
> > > OK, removed from the regressions list.
> >
> > Nope - actually it did happen without CPU_IDLE so it is definitely a regression.
> > (See http://lkml.org/lkml/2007/12/17/93 )
> >
> > And it does happen with latest git which I believe has your patch Ingo.
> >
> > So I would suggest to keep it on the list of regressions.
>
> OK
>
> Thanks for the clarification.
>

BTW, I have so far tested 2.6.24-rc4/5/6/7 and 2.6.23.12 - all of
which have this problem.

Yesterday I went back to using 2.6.22.15 and after a day's uptime it
has not reproduced with the same config.

Time for git-bisect I suppose? (the only problem is that this takes
anywhere between 20 minutes to 8 hrs to confirm reliably.)

Parag
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