From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nageswara R Sastry Subject: [OOPs] ext4: fixpoint divide exception at ext4_fill_super+0x141c/0x2908 Date: Tue, 25 Aug 2009 11:09:56 +0530 Message-ID: <4A93792C.2000705@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Kamalesh Babulal , sachin p sant , Ramon To: linux-ext4 Return-path: Received: from e23smtp07.au.ibm.com ([202.81.31.140]:36468 "EHLO e23smtp07.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754511AbZHYFjy (ORCPT ); Tue, 25 Aug 2009 01:39:54 -0400 Received: from d23relay02.au.ibm.com (d23relay02.au.ibm.com [202.81.31.244]) by e23smtp07.au.ibm.com (8.14.3/8.13.1) with ESMTP id n7P5dtVQ007028 for ; Tue, 25 Aug 2009 15:39:55 +1000 Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay02.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id n7P5dtf11290250 for ; Tue, 25 Aug 2009 15:39:55 +1000 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n7P5dsZg030553 for ; Tue, 25 Aug 2009 15:39:55 +1000 Sender: linux-ext4-owner@vger.kernel.org List-ID: Hi, Found kernel bug - fixpoint divide exception While working with fsfuzzer Environment: 2.6.31-rc7 Architecture: s390 and ppc64 ------------[ cut here ]------------ Kernel BUG at 000003e00429d934 [verbose debug info unavailable] fixpoint divide exception: 0009 [#1] SMP Modules linked in: ext4 jbd2 crc16 loop autofs4 lockd sunrpc ipv6 qeth_l2 qeth q dio vmur ccwgroup dm_round_robin dm_multipath scsi_dh sd_mod scsi_mod multipath dm_snapshot dm_zero dm_mirror dm_region_hash dm_log dm_mod dasd_fba_mod dasd_eck d_mod dasd_mod ext3 jbd CPU: 2 Not tainted 2.6.31-rc6 #1 Process mount (pid: 2675, task: 000000003ed06038, ksp: 0000000036217920) Krnl PSW : 0704200180000000 000003e00429d934 (ext4_fill_super+0x1478/0x2908 [ext 4]) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3 Krnl GPRS: 0000000000000100 0000000000000100 0000000000000006 000000002fc61800 0000000000000000 0000000000000100 000000002fc61800 000000002fc61800 000000003143a800 00000000000000e0 0000000000000000 000000003eb0d800 000003e00427c000 000003e0042b8958 000003e00429d87c 0000000036217b10 Krnl Code: 000003e00429d928: b9160050 llgfr %r5,%r0 000003e00429d92c: a7490000 lghi %r4,0 000003e00429d930: b987004a dlgr %r4,%r10 >000003e00429d934: b91600a5 llgfr %r10,%r5 000003e00429d938: a53f80d0 llill %r3,32976 000003e00429d93c: a7ad000c mghi %r10,12 000003e00429d940: b904002a lgr %r2,%r10 000003e00429d944: 1895 lr %r9,%r5 Call Trace: ([<000003e00429d87c>] ext4_fill_super+0x13c0/0x2908 [ext4]) [<00000000000f46f2>] get_sb_bdev+0x13e/0x19c [<000003e00429230e>] ext4_get_sb+0x2e/0x40 [ext4] [<00000000000f3f98>] vfs_kern_mount+0xc0/0x168 [<00000000000f40ac>] do_kern_mount+0x58/0x114 [<000000000010e558>] do_mount+0x798/0x830 [<000000000010e6a0>] SyS_mount+0xb0/0x100 [<00000000000266be>] sysc_noemu+0x10/0x16 [<0000004e53f234e2>] 0x4e53f234e2 Last Breaking-Event-Address: [<000003e00429d8d8>] ext4_fill_super+0x141c/0x2908 [ext4] ---[ end trace b5563edf9c0c9b52 ]--- *P.S. If you need any information please let me know. Please cc me as I am not subscribed to the list. Thanks and Regards R.Nageswara Sastry