From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759526Ab1JGDU3 (ORCPT ); Thu, 6 Oct 2011 23:20:29 -0400 Received: from beauty.rexursive.com ([150.101.121.179]:52416 "EHLO beauty.rexursive.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758353Ab1JGDU2 (ORCPT ); Thu, 6 Oct 2011 23:20:28 -0400 Subject: Re: [PATCH v8]: Improve performance of LZO/plain hibernation From: Bojan Smojver To: "Rafael J. Wysocki" Cc: linux-kernel@vger.kernel.org, linux-pm@lists.linux-foundation.org Date: Fri, 07 Oct 2011 14:20:26 +1100 In-Reply-To: <201110062045.48689.rjw@sisk.pl> References: <1317342456.1959.6.camel@shrek.rexursive.com> <3169978091.1002283638@rexursive.com> <201110062037.14322.rjw@sisk.pl> <201110062045.48689.rjw@sisk.pl> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.0.3 (3.0.3-1.fc15) Content-Transfer-Encoding: 7bit Message-ID: <1317957626.2008.2.camel@shrek.rexursive.com> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2011-10-06 at 20:45 +0200, Rafael J. Wysocki wrote: > > I get a kernel panic on a test box using a x86_64 kernel with this > patch applied. > > The panic happens during late resume, when trying to switch to the > hibernated kernel. I'm working on a version of the patch that will produce a SHA1 checksum of the image pages on save/load. This will then eliminate problems related to pages not being saved/loaded correctly by threads etc. I'll send you that when I test it. If that still panics your kernel after the checksums have been verified, then we have another problem somewhere. -- Bojan