Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933937Ab1CXTpv (ORCPT ); Thu, 24 Mar 2011 15:45:51 -0400 Received: from ud10.udmedia.de ([194.117.254.50]:54967 "EHLO mail.ud10.udmedia.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751959Ab1CXTps (ORCPT ); Thu, 24 Mar 2011 15:45:48 -0400 Date: Thu, 24 Mar 2011 20:45:46 +0100 From: Markus Trippelsdorf To: Jens Axboe Cc: Linus Torvalds , "linux-kernel@vger.kernel.org" , Chris Mason Subject: Re: [GIT PULL] Core block IO bits for 2.6.39 - early Oops Message-ID: <20110324194546.GA1741@gentoo.trippels.de> References: <4D8B4A89.80608@fusionio.com> <20110324183019.GA1676@gentoo.trippels.de> <4D8B8F34.5000203@fusionio.com> <4D8B92AE.8090308@fusionio.com> <20110324185445.GB1696@gentoo.trippels.de> <4D8B9457.2020608@fusionio.com> <20110324193441.GA1723@gentoo.trippels.de> <4D8B9D2F.4010504@fusionio.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4D8B9D2F.4010504@fusionio.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1744 Lines: 49 On 2011.03.24 at 20:36 +0100, Jens Axboe wrote: > On 2011-03-24 20:34, Markus Trippelsdorf wrote: > > On 2011.03.24 at 19:58 +0100, Jens Axboe wrote: > >> On 2011-03-24 19:54, Markus Trippelsdorf wrote: > >>> On 2011.03.24 at 19:51 +0100, Jens Axboe wrote: > >>>> On 2011-03-24 19:36, Jens Axboe wrote: > >>>>> On 2011-03-24 19:30, Markus Trippelsdorf wrote: > >>>>>> On 2011.03.24 at 14:43 +0100, Jens Axboe wrote: > >>>>>>> > >>>>>>> This is the main pull request for the block IO layer and friends for > >>>>>>> 2.6.39. > >>>>>> > >>>>>> This merge results in an early oops on my system (amd64, xfs). > >>>>>> See the attached photo. > >>>>>> > >>>>> > >>>>> Auch. Can you ensure that you have CONFIG_DEBUGINFO=y in your .config > >>>>> and then do: > >>>>> > >>>>> $ gdb vmlinux > >>>>> ... > >>>>> l *cfq_insert_request+0x32 > >>>>> > >>>>> and send that output? > >>>> > >>>> I took a closer look at the oops, and it most likely looks like q == > >>>> NULL (offset 0x18 == q->elevator). You left out the Code part, so I > >>>> can't verify that for certain. Which makes very little sense. I take it > >>>> this is 100% reproducible? When you send the gdb output, please also > >>>> attach your .config. > >>> > >>> Yes, it's 100% reproducible here. My .config follows: > >> > >> Can you try this patch and see if it makes a difference? > > > > There's no patch ;-) > > Oh, here it is. > It doesn't help, unfortunately. I still get the same BUG at cfq_insert_request+0x32/0x4d0. -- Markus -- 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/