From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Greaves Subject: Re: 2.6.22-rc3 hibernate(?) fails totally - regression (xfs on raid6) Date: Thu, 07 Jun 2007 11:30:05 +0100 Message-ID: <4667DE2D.6050903@dgreaves.com> References: <46608E3F.4060201@dgreaves.com> <200706012342.45657.rjw@sisk.pl> <46609FAD.7010203@dgreaves.com> <200706020122.49989.rjw@sisk.pl> <4661EFBB.5010406@dgreaves.com> <4662D852.4000005@dgreaves.com> <46667160.80905@gmail.com> <46668EE0.2030509@dgreaves.com> <46679D56.7040001@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <46679D56.7040001@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Tejun Heo Cc: Linus Torvalds , "Rafael J. Wysocki" , xfs@oss.sgi.com, "'linux-kernel@vger.kernel.org'" , linux-pm , Neil Brown List-Id: linux-pm@vger.kernel.org Tejun Heo wrote: > Hello, > > David Greaves wrote: >> Just to be clear. This problem is where my system won't resume after s2d >> unless I umount my xfs over raid6 filesystem. > > This is really weird. I don't see how xfs mount can affect this at all. Indeed. It does :) > How hard does the machine freeze? Can you use sysrq? If so, please > dump sysrq-t. I suspect there is a problem writing to the consoles... I recompiled (rc4+patch) with sysrq support, suspended, resumed and tried sysrq-t but got no output. I *can* change VTs and see the various login prompts, bitmap messages and the console messages. Caps/Num lock lights work. Fearing incompetence I tried sysrq-s sysrq-u sysrq-b and got a reboot so sysrq is OK. Any suggestions on how to see more? Or what to try next? Any other kernel debug options to set? David PS Back in a couple of hours...