Subject: Re: 2.6.25-rc2 regression - hang on suspend
From: Soeren Sonnenburg <kernel@nn7.de>
To: "Rafael J\. Wysocki" <rjw@sisk.pl>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>,
       pm list <linux-pm@lists.linux-foundation.org>
In-Reply-To: <200802221656.28546.rjw@sisk.pl>
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Date: Sat, 23 Feb 2008 08:38:38 +0100
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On Fri, 2008-02-22 at 16:56 +0100, Rafael J. Wysocki wrote:
> On Friday, 22 of February 2008, Soeren Sonnenburg wrote:
> > On Fri, 2008-02-22 at 00:06 +0100, Rafael J. Wysocki wrote: 
> > > On Thursday, 21 of February 2008, Soeren Sonnenburg wrote:
> > > > On Thu, 2008-02-21 at 01:31 +0100, Rafael J. Wysocki wrote:
> > > > > On Wednesday, 20 of February 2008, Soeren Sonnenburg wrote:
> > > > > > On Wed, 2008-02-20 at 00:50 +0100, Rafael J. Wysocki wrote:
> > [...] 
> > Also when compiling these many kernels via make -j4 I noted that I could
> > hardly move the mouse / use the keyboard, but saw random jumps and
> > key-repetitions...
> 
> This last bit is most likely a scheduler issue.  Do you have CONFIG_GROUP_SCHED
> set by chance?  If you do, please try to unset it and see if that helps.

Yes I had. Disabling this helped a lot -- the kernel seems to behave
normally with this option unset.

Soeren
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