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From: Christian Hesse <mail@earthworm.de>
To: Ingo Molnar <mingo@elte.hu>
Subject: Re: CFS and suspend2: hang in atomic copy
Date: Wed, 18 Apr 2007 22:45:18 +0200
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Cc: linux-kernel@vger.kernel.org,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Con Kolivas <kernel@kolivas.org>, Nick Piggin <npiggin@suse.de>,
       Mike Galbraith <efault@gmx.de>, Arjan van de Ven <arjan@infradead.org>,
       Thomas Gleixner <tglx@linutronix.de>, suspend2-devel@lists.suspend2.net
References: <20070413202100.GA9957@elte.hu> <200704181759.03559.mail@earthworm.de> <20070418164621.GA30744@elte.hu>
In-Reply-To: <20070418164621.GA30744@elte.hu>
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On Wednesday 18 April 2007, Ingo Molnar wrote:
> * Christian Hesse <mail@earthworm.de> wrote:
> > On Friday 13 April 2007, Ingo Molnar wrote:
> > > as usual, any sort of feedback, bugreports, fixes and suggestions are
> > > more than welcome,
> >
> > When trying to suspend a system patched
> > with suspend2 2.2.9.11 it hangs with "doing atomic copy". Pressing the
> > ESC key results in a message that it tries to abort suspend, but then
> > still hangs.
>
> i took a quick look at suspend2 and it makes some use of yield().
> There's a bug in CFS's yield code, i've attached a patch that should fix
> it, does it make any difference to the hang?

This patch should apply cleanly against what? The second hunk is ignored as=
 it=20
has already been applied. Is this correct?

But no, it does not change anything. Let me know if you have any other patc=
hes=20
to test.
=2D-=20
Regards,
Chris

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