linux-kernel - Re: Timer unstability on when using C2 and deeper sleep states (Dell Latitude XT)

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Date:	Wed, 13 Aug 2008 15:05:58 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	Milan Plzik <milan.plzik@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Timer unstability on when using C2 and deeper sleep states (Dell Latitude XT)

Hi!

>   I apologize for replying on my own mail (and also for top-posting, but
> this information is global update, not exactly fitting any of topics
> mentioned below).
> 
>   After playing for a longer while I found out that the system ends
> sometimes in state where, in order to do anything useful, I need to
> press keys on keyboard. Otherwise, the system just stalls and does
> nothing. I have no idea why does this happen (especially when I know

I have seen it before with NOHZ problems. Try nohz=off, highres=off ?

-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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