From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752876Ab1G2UYv (ORCPT ); Fri, 29 Jul 2011 16:24:51 -0400 Received: from smtp-out003.kontent.com ([81.88.40.217]:34256 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752796Ab1G2UYu (ORCPT ); Fri, 29 Jul 2011 16:24:50 -0400 From: Oliver Neukum To: Pavel Machek Subject: Re: [linux-pm] better oopsing when frozen Date: Fri, 29 Jul 2011 22:27:36 +0200 User-Agent: KMail/1.13.5 (Linux/3.0.0-12-desktop+; KDE/4.4.4; x86_64; ; ) Cc: linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org, rjw@sisk.pl References: <201107251043.19932.oneukum@suse.de> <20110729195430.GB1720@ucw.cz> In-Reply-To: <20110729195430.GB1720@ucw.cz> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201107292227.36424.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Freitag, 29. Juli 2011, 21:54:30 schrieb Pavel Machek: > On Mon 2011-07-25 10:43:19, Oliver Neukum wrote: > > Hi Rafael, > > > > I had a problem with the kernel stopping the machine forever because I got an > > oops while tasks were frozen. It seems to me that we should thaw when this > > happens. How about this approach? > > Danger, Will Robinson. You must not write to the filesystems after > hibernation started. By thawing, you may do just that. > > It should be safe to thaw as long as final suspend signature is not > on disk and will not be written there. Yes. But this applies only if I use kernel-space hibernation, doesn't it? So I need a second flag for the signature being written. Any other problem? Regards Oliver