From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bojan Smojver Subject: Re: Memory corruption on hibernate/thaw with KMS Date: Tue, 04 Oct 2011 14:21:51 +1100 Message-ID: <1317698511.2069.21.camel@shrek.rexursive.com> References: <1317103928.1981.5.camel@shrek.rexursive.com> <1317624267.1959.13.camel@shrek.rexursive.com> <1317696409.2069.14.camel@shrek.rexursive.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from beauty.rexursive.com (beauty.rexursive.com [150.101.121.179]) by gabe.freedesktop.org (Postfix) with ESMTP id 9AFD39E97E for ; Mon, 3 Oct 2011 20:21:52 -0700 (PDT) In-Reply-To: <1317696409.2069.14.camel@shrek.rexursive.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Eugeni Dodonov Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Tue, 2011-10-04 at 13:46 +1100, Bojan Smojver wrote: > So, yeah, for all intents and purposes, I can only reproduce it on > this system. If it matters, before I switched to ThinkPad T510, I had a Dell Inspiron 6400, also with Intel graphics. I was then hitting: https://bugzilla.redhat.com/show_bug.cgi?id=537494 Which is: http://bugzilla.kernel.org/show_bug.cgi?id=13811 Which is more or less the same bug. Essentially, pages get corrupted on thaw after the hibernate/thaw cycle is repeated several times. If you look at this comment of that Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=537494#c67 You will see that the problem has been fixed at some point. But then the code regressed again. My guess is when the code was rewritten in such a way that the patch that fixed kernel bug #13811 did no apply any more. -- Bojan