From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Fri, 07 Mar 2008 14:46:50 -0800 (PST) Received: from larry.melbourne.sgi.com (larry.melbourne.sgi.com [134.14.52.130]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with SMTP id m27MkQ4D008836 for ; Fri, 7 Mar 2008 14:46:28 -0800 Date: Sat, 8 Mar 2008 09:46:45 +1100 From: David Chinner Subject: Re: assfail during unmount xfs 2.6.24.3 [from 2.6.24.y git] Message-ID: <20080307224645.GW155259@sgi.com> References: <200803062329.10486.Chris.Knadle@coredump.us> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200803062329.10486.Chris.Knadle@coredump.us> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Chris Knadle Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com On Thu, Mar 06, 2008 at 11:29:07PM -0500, Chris Knadle wrote: > During the final unmount before reboot there was an assertion failure from XFS > leading to the debug output below; I've included what was available on the > screendump, which I handwrote + transcribed. [I also have screenshots from a > 2.1 MP camera -- they're slightly ugly but usable.] CONFIG_KEXEC was not > compiled in, so I was uanble to get a crashdump via SysRq. I'm sending this > along in case someone working on the XFS fs can find + fix a bug. I'm not > sending the kernel config in this first post just as not to spam everybody > with it if it's not needed -- if desired just ask and I'll send it. > Source used: 2.6.24.y from git -- 2.6.24.3. > > This is on my Desktop box, x86 system -- single P4 CPU @ 2.6 GHz, IDE disk > attached to an onboard HighPoint HPT370 controller, and running Debian Sid. > > When replying please CC me, as I am not currently subscribed to the list. ...... > Assertion failed: atomic_read(&mp->m_active_trans) == 0, file: > fs/xfs/xfs_vfsops.c, line: 708 Known problem. Race in the VFS w.r.t. read-only remounts: http://marc.info/?l=linux-kernel&m=120106649923499&w=2 The fix for the problem lies outside XFS: http://marc.info/?l=linux-kernel&m=120109304227035&w=2 Cheers, Dave. -- Dave Chinner Principal Engineer SGI Australian Software Group