Re: BUG: using smp_processor_id() in preemptible [00000000] code:pm-suspend/17334

From: Thomas Gleixner
Date: Wed Jun 04 2008 - 06:54:53 EST


On Tue, 3 Jun 2008, Jiri Kosina wrote:
> > Ahh yes - you are right , I've completely forget about that old post -
> > I've thought that my post are usually getting fixed sooner :)
> > So yes - this is actually the same bug which is still not fixed within
> > the latest kernel - the machine is running qemu guest (which seems to
> > me now somehow also slower)
>
> OK, so it looks like KVM could be wrongly enabling IRQs/preemption on the
> resume path. The original bug-report is on
> http://lkml.org/lkml/2008/4/7/130

sysdev_resume() is supposed to run with interrupts disabled, at least
it was that way when the timekeeping_resume code was written.

Thanks,
tglx
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