Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755392Ab2BPX1f (ORCPT ); Thu, 16 Feb 2012 18:27:35 -0500 Received: from mx1.redhat.com ([209.132.183.28]:8200 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754903Ab2BPX1e (ORCPT ); Thu, 16 Feb 2012 18:27:34 -0500 Message-ID: <4F3D90E1.6010001@redhat.com> Date: Thu, 16 Feb 2012 15:27:29 -0800 From: Eric Sandeen User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:10.0) Gecko/20120129 Thunderbird/10.0 MIME-Version: 1.0 To: Dave Jones , richard -rw- weinberger , "Rafael J. Wysocki" , LKML , linux-pm@lists.linux-foundation.org, esandeen@redhat.com Subject: Re: Corrupted files after suspend to disk References: <201103242330.14416.rjw@sisk.pl> <20120216163030.GA32651@redhat.com> In-Reply-To: <20120216163030.GA32651@redhat.com> X-Enigmail-Version: 1.3.5 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1855 Lines: 47 On 2/16/12 8:30 AM, Dave Jones wrote: > On Thu, Feb 16, 2012 at 11:52:27AM +0100, richard -rw- weinberger wrote: > > > >> >> Of course, please test the above separately. :-) > > >> > > > >> > Ok, I'll test this when I'm at home. > > >> > > > >> > BTW: dropping the caches helps, when some files seem corrupted. > > >> > Today /usr/bin/okular was broken. > > >> > After setting vm.drop_caches=1 it worked again. > > >> > > >> On Linux 2.6.38 I'm unable to reproduce the issue. > > >> Only 2.6.37 seems to be affected. > > >> So, I'm moving over to 2.6.38. :) > > > > > Bad news: > > I saw the issue on 3.x too but thought it's because my IdeaPad s10 is crap. > > Now with my shiny new Lenovo x121e I have the same issue! :-( > > > > OpenSUSE 12.1, kernel 3.2.7. > > After a few suspend2disk iterations random files are corrupted. > > But only cached files. A reboot solves the problem. Just to be clear - you see _data_ corruption in files, but only until a reboot, and after that they are ok? Ok, reading above about using drop_caches that sounds like the case. That sounds different from what I saw in the bug Dave mentions below, but possibly related root cause, I suppose. -Eric > FWIW, we've been seeing a number of hard to diagnose failures > with suspend to disk for the last few releases in Fedora. > Eric Sandeen has been chasing https://bugzilla.redhat.com/show_bug.cgi?id=744275 > for a while, but there's no smoking gun that really explains what's > getting into these states. Further complicating things, is that it > doesn't seem to be 100% reproducable. > > Dave > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/