linux-kernel - Re: [Suspend-devel] [BUG] 3.7-rc regression bisected: s2disk fails to resume image: Processes could not be frozen, cannot continue resuming

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Message-ID: <20130918130219.GC2467@amd.pavel.ucw.cz>
Date:	Wed, 18 Sep 2013 15:02:19 +0200
From:	Pavel Machek <pavel@....cz>
To:	Andrew Savchenko <bircoph@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	suspend-devel@...ts.sourceforge.net, viro@...iv.linux.org.uk,
	linux-pm@...r.kernel.org
Subject: Re: [Suspend-devel] [BUG] 3.7-rc regression bisected: s2disk fails
 to resume image: Processes could not be frozen, cannot continue resuming

On Thu 2013-09-12 12:32:17, Andrew Savchenko wrote:
> Hello,
> 
> On Thu, 05 Sep 2013 14:23:25 +0200 Rafael J. Wysocki wrote:
> > On Thursday, September 05, 2013 02:08:11 PM Pavel Machek wrote:
> > > Hi!
> > > 
> > > Rafael, Al: apparently we have a regression caused by
> > > ba4df2808a86f8b103c4db0b8807649383e9bd13 .
> > 
> > I noticed that, but I'm not sure how to deal with it.
> > 
> > Also, s2disk still works on my test machines, so that seems to be
> > specific to this particular configuration.
> 
> Is there any way to debug this issue further than just bisecting
> commit? Perhaps suspend ioctl should be traced to see why it fails,
> but I don't know what exactly inside the kernel should be debugged
> and how.

If revert of ba4df2808a86f8b103c4db0b8807649383e9bd13 fixes it, then I
guess it should be just reverted...
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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