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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Date:	Thu, 12 Sep 2013 12:32:17 +0400
From:	Andrew Savchenko <bircoph@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Pavel Machek <pavel@....cz>, 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

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.

Best regards,
Andrew Savchenko

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