linux-kernel - Re: [PATCH] nohz: add missing handling of clocksource watchdog

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Message-ID: <493C60E3.7070303@ru.mvista.com>
Date:	Mon, 08 Dec 2008 02:48:51 +0300
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	"R. J. Wysocki" <Rafal.Wysocki@....edu.pl>
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Lars Winterfeld <lars.winterfeld@...ilmenau.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nohz: add missing handling of clocksource watchdog

Hello.

R. J. Wysocki wrote:
> On Monday, 8 of December 2008, Bartlomiej Zolnierkiewicz wrote:
>   
>> Fixes "Clocksource tsc unstable (delta = -974982308 ns)" problem.
>>     
>
> Where can I find the description of the problem?
>   

   Kernel.org bug #10216 (it's not about this issue though).

> Rafael
>
>   
>> [ IDE was unlucky to be initialized at the same time that
>>   clocksource watchdog triggers and was blamed for the issue. ]
>>     

   I think it might well have been blamed correctly -- the clocksource 
watchdog timer gets run every half second.

MBR, Sergei


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