From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763400AbXFBWrX (ORCPT ); Sat, 2 Jun 2007 18:47:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760793AbXFBWrQ (ORCPT ); Sat, 2 Jun 2007 18:47:16 -0400 Received: from smtp1.linux-foundation.org ([207.189.120.13]:41532 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760729AbXFBWrQ (ORCPT ); Sat, 2 Jun 2007 18:47:16 -0400 Date: Sat, 2 Jun 2007 15:46:47 -0700 (PDT) From: Linus Torvalds To: David Greaves cc: "Rafael J. Wysocki" , xfs@oss.sgi.com, "'linux-kernel@vger.kernel.org'" , netdev@oss.sgi.com, linux-pm Subject: Re: 2.6.22-rc3 hibernate(?) fails totally - regression In-Reply-To: <4661EFBB.5010406@dgreaves.com> Message-ID: References: <46608E3F.4060201@dgreaves.com> <200706012342.45657.rjw@sisk.pl> <46609FAD.7010203@dgreaves.com> <200706020122.49989.rjw@sisk.pl> <4661EFBB.5010406@dgreaves.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2 Jun 2007, David Greaves wrote: > > Then 2.6.22-rc3 again but CONFIG_DISABLE_CONSOLE_SUSPEND=y > It suspended again. > Froze on restore. > Screen photo here: > http://www.dgreaves.com/pub/2.6.21-rc3-resume-failure.jpg Ok, it wasn't a hidden oops. The DISABLE_CONSOLE_SUSPEND=y thing sometimes shows oopses that are otherwise hidden, but at other times it just causes more problems (hard hangs when trying to display something on a device that is suspended, or behind a bridge that got suspended). In your case, the screen output just shows normal resume output, and it apparently just hung for some unknown reason. It *may* be worth trying to do a SysRQ + 't' thing to see what tasks are running (or rather, not running), but since you won't be able to capture it, it's probably not going to be useful. > Then 2.6.22-rc3 again but CONFIG_DISABLE_CONSOLE_SUSPEND=y > This time, before suspending I unmounted my xfs/lvm/raid6 filesystem. > Just a umount, I left the devices/array up. > It suspended again. > This time it resumed without fault. It would be interesting to see what triggered it, since it apparently worked before. So yes, a bisection would be great. Linus