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From: Andrew Lutomirski <luto@mit.edu>
Date: Wed, 10 Nov 2010 14:02:48 -0500
Message-ID: <AANLkTimNuSJz0nXZCR2zu963VQ_Y9R8ix73+QbbUy7nt@mail.gmail.com>
Subject: Re: [FALSE ALARM] Re: HPET (?) related hangs and breakage in 2.6.35,36
To: Borislav Petkov <bp@amd64.org>
Cc: Clemens Ladisch <clemens@ladisch.de>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@elte.hu>,
        "H. Peter Anvin" <hpa@zytor.com>, x86 <x86@kernel.org>,
        =?ISO-8859-1?Q?J=F6rg_R=F6del?= <joerg.roedel@amd.com>
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On Wed, Nov 10, 2010 at 1:50 PM, Borislav Petkov <bp@amd64.org> wrote:
> On Wed, Nov 10, 2010 at 01:48:00PM -0500, Andrew Lutomirski wrote:
>> > Clocksource: tsc unstable (delta = -34355296774 ns)
>> > Switching: to clocksource hpet
>>
>> Please disregard -- this is a bug in nouveau (or drm) not hpet. ?I'll
>> send a bug report to the maintainers.
>
> Interesting! Joerg was complaining about similar symptoms with .36 today
> too.

Well, there is a clocksource sort-of-bug that could cause confusion:
when something totally unrelated to clocksources goes out to lunch,
the clocksource watchdog decides that the clocksource is unstable and
complains, steering everyone toward filing the wrong bug.

tglx?

>
> --
> Regards/Gruss,
> Boris.
>
> Advanced Micro Devices GmbH
> Einsteinring 24, 85609 Dornach
> General Managers: Alberto Bozzo, Andrew Bowd
> Registration: Dornach, Gemeinde Aschheim, Landkreis Muenchen
> Registergericht Muenchen, HRB Nr. 43632
>
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