Re: 2.6.24-git2: Oracle 11g VKTM process enters R state on startupand is unkillable [still broken in 2.6.25-rc1]

From: Peter Zijlstra
Date: Tue Feb 12 2008 - 08:45:20 EST



On Tue, 2008-02-12 at 00:12 +0100, Rafael J. Wysocki wrote:
> On Monday, 11 of February 2008, Ingo Molnar wrote:
> >
> > * Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> > > no, they were not lost, they just didnt pass QA here (they crashed on
> > > a particularly hard to debug 8-way box i have) and Peter worked on
> > > that queue of fixes up until today to get it really correct. Could you
> > > check:
> > >
> > > git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched.git
> > >
> > > combo patch below as well - whichever you prefer. The shortlog can be
> > > found below as well - but i dont yet consider this pullable, i'd like
> > > it to see pass a full night of randconfig tests on my test-systems.
> >
> > ok, we just found the reason for the 8-way crash, the delta fix from
> > Peter is below if any of you have tried the previous combo patch.
> > Updated sched.git as well, new HEAD is
> > fec13e45305d69fd0bd23b30bd05a0a42cf341f8.
>
> With the previous patch and this patch applied, the issue is not reproducible
> here.

Did you enable CONFIG_RT_GROUP_SCHED (it defaults to n)?

If you didn't, could you try with it set to y?

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