linux-kernel - Re: High latency in wine after suspend

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Message-ID: <4DA7E83A.8080007@odi.ch>
Date:	Fri, 15 Apr 2011 08:39:54 +0200
From:	Ortwin Glück <odi@....ch>
To:	Pavel Machek <pavel@....cz>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org
Subject: Re: High latency in wine after suspend

>> After a suspend/resume cycle I see intermittent high latency in
>> poll_schedule_timeout (latencytop). This leads to the mouse cursor
>> freezing for several seconds sometimes when switching to/from a window
>> of a wine process. The problem never occurs before suspend, but always
>> occurs after. Any ideas what could cause such behaviour? Kernel is
>> vanilla 2.6.38 x86_64 running on a recent HP laptop with Intel chipset.
> 
> Was this solved somehow? Can you try to  find "smaller" testcase --
> anything less complex than wine? What about hibernation?

Yes, I made an educated guess and applied

84ac7c
x86, mtrr, pat: Fix one cpu getting out of sync during resume

With that the problem is gone.



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