From: "Moffett, Kyle D" Subject: Re: Bug#615998: linux-image-2.6.32-5-xen-amd64: Repeatable "kernel BUG at fs/jbd2/commit.c:534" from Postfix on ext4 Date: Mon, 4 Apr 2011 09:24:28 -0500 Message-ID: <15E8241A-37A0-4438-849E-A157A376C7F1@boeing.com> References: <20110301165239.3310.43806.reportbug@support.exmeritus.com> <20110403020227.GA19963@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Cc: "615998@bugs.debian.org" <615998@bugs.debian.org>, "Livingston, John A" , "linux-ext4@vger.kernel.org" , Sachin Sant , "Aneesh Kumar K.V" To: "Ted Ts'o" Return-path: Received: from slb-smtpout-01.boeing.com ([130.76.64.48]:55237 "EHLO slb-smtpout-01.boeing.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754601Ab1DDPEM convert rfc822-to-8bit (ORCPT ); Mon, 4 Apr 2011 11:04:12 -0400 In-Reply-To: <20110403020227.GA19963@thunk.org> Content-Language: en-US Sender: linux-ext4-owner@vger.kernel.org List-ID: On Apr 02, 2011, at 22:02, Ted Ts'o wrote: > Sorry for not following up sooner. Are you still able to reproduce > this failure? If I set up an identical Debian stable instance on > EC-2, am I likely to reproduce it myself? Do you have a package list > or EC2 base image I can use as a starting point? I'll need to check on this. Unfortunately it was not a trivial process to install Debian "squeeze" onto an EC2 instance; it took a couple ugly Perl scripts, a patched Debian-Installer, and several manual post-install-but-before-reboot steps (like fixing up GRUB 0.99). One of these days I may get time to update all that to the official "wheezy" release and submit bug reports. I have an exact image of the failing instance, but it has proprietary data on it and if I stand up an old copy I need to be careful not to actually let it send all the queued emails :-D. It's probably easier for me to halt email delivery and clone the working instance and try to reproduce from there. If I recall, the (easily undone) workaround was to remount from "data=journal" to "data=ordered" on a couple filesystems. It may take a day or two to get this done, though. If it comes down to it I also have a base image (from "squeeze" as of 9 months ago) that could be made public after updating with new SSH keys. Thanks again! Cheers, Kyle Moffett