linux-kernel - Re: System time drifts when processor idle.

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Message-ID: <AANLkTin5cLQG9ApxhCs92Twm958MP0J+u4GdBysJ3aNk@mail.gmail.com>
Date:	Tue, 24 Aug 2010 09:08:25 +0200
From:	jean-philippe francois <jp.francois@...ove.com>
To:	john stultz <johnstul@...ibm.com>
Cc:	Lin Ming <lin@...g.vg>, "H. Peter Anvin" <hpa@...or.com>,
	linux-acpi@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: System time drifts when processor idle.

>
> Could you provide the output of:
> cat /sys/devices/system/clocksource/clocksource0/available_clocksource

hpet acpi_pm

> cat /sys/devices/system/clocksource/clocksource0/current_clocksource
>

hpet

> I assume you're using the TSC, and hitting the halt-in-c3 issue, but
> I'm curious why the clocksource watchdog isn't catching this and
> dropping you back to a more stable clocksource.
>

I also attached the dmesg output.

Thank you for your help.

Jean-Philippe François

View attachment "dmesg.log" of type "text/x-log" (57176 bytes)