From: Sachin Sant Subject: Re: EXT4: kernel BUG at fs/jbd2/commit.c:533! Date: Fri, 18 Sep 2009 14:37:06 +0530 Message-ID: <4AB34DBA.1080909@in.ibm.com> References: <4A9E5496.8050909@in.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "Aneesh Kumar K.V" , Theodore Tso To: linux-ext4@vger.kernel.org Return-path: Received: from e28smtp08.in.ibm.com ([59.145.155.8]:59124 "EHLO e28smtp08.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751023AbZIRJHH (ORCPT ); Fri, 18 Sep 2009 05:07:07 -0400 Received: from d28relay05.in.ibm.com (d28relay05.in.ibm.com [9.184.220.62]) by e28smtp08.in.ibm.com (8.14.3/8.13.1) with ESMTP id n8I91YbN027858 for ; Fri, 18 Sep 2009 14:31:34 +0530 Received: from d28av02.in.ibm.com (d28av02.in.ibm.com [9.184.220.64]) by d28relay05.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id n8I977Ou950306 for ; Fri, 18 Sep 2009 14:37:07 +0530 Received: from d28av02.in.ibm.com (loopback [127.0.0.1]) by d28av02.in.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id n8I976kk020264 for ; Fri, 18 Sep 2009 19:07:06 +1000 In-Reply-To: <4A9E5496.8050909@in.ibm.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: Sachin Sant wrote: > While executing fsstress against ext4 with 2.6.31-rc8 on a > powerpc box, ran into the following Bug. > > ------------[ cut here ]------------ > cpu 0x0: Vector: 700 (Program Check) at [c0000000f3ae3970] > pc: c000000000280f28: .jbd2_journal_commit_transaction+0x8ac/0x1bfc > lr: c000000000280e58: .jbd2_journal_commit_transaction+0x7dc/0x1bfc > sp: c0000000f3ae3bf0 > msr: 8000000000029032 > current = 0xc0000000f315c7d0 > paca = 0xc000000000b62600 > pid = 23139, comm = kjournald2 > kernel BUG at fs/jbd2/commit.c:533! > enter ? for help > [c0000000f3ae3dd0] c000000000289c60 .kjournald2+0x198/0x46c > [c0000000f3ae3ed0] c0000000000a86a0 .kthread+0xac/0xb8 > [c0000000f3ae3f90] c00000000002ab3c .kernel_thread+0x54/0x70 > 0:mon> > Ext4 FS was created and mounted using : > > /usr/local/e2fsprogs/sbin/mkfs.ext4 -b 4096 /dev/sda4 > mount -t ext4 -o errors=panic,data=journal /dev/sda4 /mnt/tmp/ I still have this bug with 2.6.31. Is there a solution available for this ? Let me know if i can help debug this in any way ? Thanks -Sachin > > Register information from xmon debugger : > 0:mon> r > R00 = 0000000000000001 R16 = c0000000334e0160 > R01 = c0000000f3ae3bf0 R17 = 0000000000000000 > R02 = c000000000a6f1e8 R18 = 0000000000000000 > R03 = c0000000e87c9024 R19 = 0000000000000001 > R04 = c0000000334e0100 R20 = 0000000000000001 > R05 = 0000000000000409 R21 = 0000000000000409 > R06 = 0000000000000000 R22 = c0000000f3ae3c78 > R07 = c0000000f315c7d0 R23 = 0000000000000000 > R08 = c000000000b62600 R24 = c0000000e87c9000 > R09 = 00000000000000a0 R25 = c0000000334e0170 > R10 = c0000000f3ae0080 R26 = c0000000334e0100 > R11 = 0000000100051657 R27 = c0000000334e0150 > R12 = 0000000024000088 R28 = c0000000f3ae3c78 > R13 = c000000000b62600 R29 = c0000000f315c7d0 > R14 = c0000000008325c8 R30 = c0000000009ec158 > R15 = c0000000e87c939c R31 = 0000000000000000 > pc = c000000000280f28 .jbd2_journal_commit_transaction+0x8ac/0x1bfc > lr = c000000000280e58 .jbd2_journal_commit_transaction+0x7dc/0x1bfc > msr = 8000000000029032 cr = 24000084 > ctr = 0000000000000000 xer = 0000000020000001 trap = 700 > 0:mon> > > e2fsprog utility version is : > > # /usr/local/e2fsprogs/sbin/mkfs.ext4 -V > mke2fs 1.41.6 (30-May-2009) > Using EXT2FS Library version 1.41.6 > > Let me know if i can provide any other information. > > Thanks > -Sachin > -- --------------------------------- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India ---------------------------------