On Wed, Feb 20, 2013 at 10:02:38AM +0100, Ingo Molnar wrote:
> Timers and APIC would be my leading suspect - but scheduler and
> hotplug changes might be the culprits as well.
>
> Yesterday, while preparing the trees I wanted to mention this
> x86/apic commit:
>
> 336224ba5e4f x86, apic: Mask IO-APIC and PIC unconditionally on LAPIC resume
>
> ... as a change that needs monitored because it changes the
> suspend and shutdown sequence but then skipped mentioning it
> because it seemed relatively old and proven.
Hmm, this commit only touches the resume-path. I would wonder if this
has something to do with reboot, can't rule it out, though.
> But there are other potentially dangerous commits as well - I
> suspect we won't be able to avoid a bisection :-/
Yes, I think a bisection would be best if the problem is reproducible.
Joerg
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