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Message-ID: <1f1b08da0904290945j79e1b578ye415fe4ced259b15@mail.gmail.com>
Date: Wed, 29 Apr 2009 09:45:40 -0700
From: john stultz <johnstul@...ibm.com>
To: David Fries <david@...es.net>
Cc: Ingo Molnar <mingo@...e.hu>,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: TSC marked unstable on suspend and resume
On Fri, Feb 20, 2009 at 7:39 PM, David Fries <david@...es.net> wrote:
> I'm getting TSC marked as unsable on hibernate to disk with
> 2.6.29-rc3. The last kernel I ran 2.6.24.4 ran 300+ days without a
> problem and does not loose TSC on hibernate.
>
> I'm hibernating with `echo disk > /sys/power/state`.
> These look like the relavant messages,
>
> CPU 0 irqstacks, hard=c0379000 soft=c0378000
> PID hash table entries: 1024 (order: 10, 4096 bytes)
> Fast TSC calibration using PIT
> Detected 300.705 MHz processor.
> Calibrating delay loop (skipped), value calculated using timer frequency.. 601.41 BogoMIPS (lpj=300705)
> hibernate to disk,
> Restarting tasks ... done.
> Clocksource tsc unstable (delta = 499883531 ns)
Hmm. Seems like the clocksource watchdog is having some problem
handling state around hibernate.
Out of curiousity: Does suspend-to-ram also trigger this?
Can you send me a full dmesg log?
thanks
-john
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