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SubjectRe: Possible regression? 2.6.26-rc1: T61s failure after suspend/resume
On Fri, May 09, 2008 at 01:49:45PM +0200, Peter Zijlstra wrote:
> > > But I'm failing to see how IRQs get enabled between
> > > sched_clock_idle_sleep_event() and sched_clock_idle_wakeup_event() in
> > > acpi_idle_enter_simple().
> >
> > If this point in Ted's bisection was without your idle irq fixes
> > (that patch that added trace_hardirqs_on to __sti_mwait, amongst
> > other things), would that account for it?
>
> Ah, that might, I'll do a checkout of his specific revision to verify.
>

I wouldn't worry about it too much, it's not there in 2.6.26-rc1 as
far as I can tell. And it may or may not have anything to do with the
fact that my system locked up about 60 seconds afterwards, before I
had a chance to login via X and do a suspend/resume cycle (since
that's the most reliable way to reproduce my regression). I'm
travelling this week, but when I have time, I'll try disabling X,
doing a suspend/resume cycle, and then doing a kerenl build -j3 and
see if I can provoke your symptoms.

- Ted


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