From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753485AbXCXU10 (ORCPT ); Sat, 24 Mar 2007 16:27:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753487AbXCXU10 (ORCPT ); Sat, 24 Mar 2007 16:27:26 -0400 Received: from pfepc.post.tele.dk ([195.41.46.237]:52995 "EHLO pfepc.post.tele.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753485AbXCXU1Z (ORCPT ); Sat, 24 Mar 2007 16:27:25 -0400 Subject: Re: race condition in dm-crypt? From: Kasper Sandberg To: Christoph Maier Cc: jckn@gmx.net, linux-kernel@vger.kernel.org In-Reply-To: <46043B77.60703@christoph-maier.de> References: <20070323170535.GA3057@hejre.minidns.net> <46043B77.60703@christoph-maier.de> Content-Type: text/plain Date: Sat, 24 Mar 2007 21:27:23 +0100 Message-Id: <1174768043.13793.3.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.4.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2007-03-23 at 21:41 +0100, Christoph Maier wrote: > Jan C. Nordholz wrote: > > I think I'm experiencing a race condition: Irregularly my kernel runs > > into an Oops when it tries to initialize my crypt containers. > > FYI, there are similiar reports on the net, going as far back as May 2006: > http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/1636 > is the oldest one I could find. > > Bugzilla entry: http://bugzilla.kernel.org/show_bug.cgi?id=7388 > > I, too, ran into the bug and failed to reproduce it. However, it might > be worth knowing that the system went to 100% iowait afterwards. Very interresting actually. I myself run dm-crypt and somewhat regularly my io stops for 5-10 seconds, with seemingly no errors or high load, io just stalls, and then returns after a while. > > Regards, Christoph Maier > > - > 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/ >