Messages in this thread |  | | | Date | Mon, 14 Apr 2008 14:51:50 +0200 (CEST) | | From | Thomas Gleixner <> | | Subject | Re: [Bug #10369] The never ending BEEEEP/__smp_call_function_mask with 2.6.25-rc7 |
On Sun, 13 Apr 2008, Chr wrote:
> On Sunday 13 April 2008 22:02:08 Thomas Gleixner wrote:
> >
> > The problem still persists and I have no clue at all what's the root
> > cause. The symptom is a stuck local apic timer interrupt as we have
> > seen it on those AMD X2 systems with C1E enabled. This box does not
> > advertise C1E, but the behaviour is the same.
> >
> > Christian, it would be great if you could bisect the git tree so we
> > get an idea which patch is exposing this problem. My feeling is that
> > the problem itself is there with 2.6.24 as well but not
> > exposed. That's just a gut feeling and I could be wrong as usual.
>
> Ok! The biggest problem however is: I can only run bisects on weekends. :-(
> And even then: it takes up to 2 hours until the timer gets stuck... and the
> system freezes...
Oh well, that's a bad idea then.
> But, on the other hand... does ANYBODY know a way how I can see if the
> apictimer drifts/(getting slower and slower)?
Well, it does not drift. It's stopped by some magic, but I do not
understand why we do not see that behaviour in 2.6.24. The code logic
in this area is really unchanged.
Can you disable CPUIDLE for a test please ?
Thanks,
tglx
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