linux-kernel - Re: Corrupted files after suspend to disk

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Message-ID: <alpine.LRH.2.00.1203121300590.4911@twin.jikos.cz>
Date:	Mon, 12 Mar 2012 13:03:15 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Andreas Hartmann <andihartmann@...19freenet.de>
Cc:	richard -rw- weinberger <richard.weinberger@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org
Subject: Re: Corrupted files after suspend to disk

On Wed, 7 Mar 2012, Andreas Hartmann wrote:

> > On my system kernel suspend *seems* to work.
> > I've seen no corrupted files so far.
> > 
> > But sometimes the resume is failing. (One out of 5 resumes fails).
> > I was unable to get any kernel output.
> > 
> > So I'm not sure whether this is the same issue
> > or another one. :-\
> 
> I'm pretty sure that this is the same issue. What you are telling
> correlates with my research here.
> I even got resumes where the machine came up again, but nothing could be
> done (it wasn't possible to switch of the password secured screen saver
> any more - login at the shell wasn't possible, too, because the started
> bash crashed), 

This is happening to me as well. Something like 1 resume out of 5 goes 
wrong this very same way. 

This is thinkpad x200s.

All the userspace is segfaulting all over the place (most frequently in 
libselinux for some reason).

I am not able to verify the 'drop_caches' theory, as I can't invoke a 
single command that wouldn't crash.

-- 
Jiri Kosina
SUSE Labs

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