linux-kernel - Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy

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Message-Id: <1176946632.5906.13.camel@nigel.suspend2.net>
Date:	Thu, 19 Apr 2007 11:37:12 +1000
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	Christian Hesse <mail@...thworm.de>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	suspend2-devel@...ts.suspend2.net
Subject: Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy

Hi.

On Thu, 2007-04-19 at 00:22 +0200, Christian Hesse wrote:
> On Thursday 19 April 2007, Ingo Molnar wrote:
> > * Christian Hesse <mail@...thworm.de> wrote:
> > > > although probably your suspend2 problem is still not fixed, it's
> > > > worth a try nevertheless. Which suspend2 patch did you apply, and
> > > > was it against -rc6 or -rc7?
> > >
> > > You are right again. ;-)
> > >
> > > Linux 2.6.21-rc7
> > > Suspend2 2.2.9.11 (applies cleanly to -rc7)
> > > CFS v3 (without any additional patches)
> > >
> > > And it still hangs on suspend.
> >
> > what's the easiest way for me to try suspend2? Apply the patch, reboot
> > into the kernel, then execute what command to suspend? (there's a
> > confusing mismash of initiators of all the suspend variants. Can i drive
> > this by echoing to /sys/power/state?)
> 
> Perhaps you have to install suspend2-userui as well for the output (I'm not 
> shure whether it works without). Then you can trigger the suspend by echoing 
> to /sys/power/suspend2/do_suspend.
> Useful informations can be found in the Howto:
> 
> http://www.suspend2.net/HOWTO
> 
> I dropped some ccs to not abuse Linus and friends.

You can suspend and resume without it.

Regards,

Nigel

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