From: bugzilla-daemon@bugzilla.kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 14286] New: kernel BUG at fs/ext4/extents.c:2863
Date: Thu, 1 Oct 2009 05:41:01 GMT [thread overview]
Message-ID: <bug-14286-13602@http.bugzilla.kernel.org/> (raw)
http://bugzilla.kernel.org/show_bug.cgi?id=14286
Summary: kernel BUG at fs/ext4/extents.c:2863
Product: File System
Version: 2.5
Kernel Version: 2.6.32-rc1, 2.6.31
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ext4
AssignedTo: fs_ext4@kernel-bugs.osdl.org
ReportedBy: rnsastry@linux.vnet.ibm.com
CC: sandeen@redhat.com
Regression: No
While working with fsfuzz encountered the following kernel stack traces.
Environment: 2.6.32-rc1 and 2.6.31 (kernel BUG at fs/ext4/extents.c:2833)
Architecture: s390
------------[ cut here ]------------
kernel BUG at fs/ext4/extents.c:2863!
illegal operation: 0001 [#1] SMP
Modules linked in: cbc md5 aes_s390 aes_generic ecb ecryptfs ext4 jbd2 crc16
autofs4 lockd sunrpc ipv6 loop qeth_l2 qeth qdio 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_eckd_mod dasd_mod ext3 jbd
CPU: 0 Not tainted 2.6.32-rc2 #1
Process fstest (pid: 5755, task: 0000000024a48038, ksp: 0000000011afbe20)
Krnl PSW : 0704000180000000 000003e00200f3f4 (ext4_ext_get_blocks+0x240/0x10cc
[ext4])
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0 EA:3
Krnl GPRS: 0000000000000000 0000000000000000 0000000000002400 0000000000000000
000000001416c000 000000000c8da000 000000002b539370 0000000000000000
000000002b5390f0 000000002b5390f0 0000000011afba90 000000002b539040
000003e001fe3000 000003e002023198 000003e00200f388 0000000011afb6c8
Krnl Code: 000003e00200f3e8: a71100ff tmll %r1,255
000003e00200f3ec: a7740006 brc 7,3e00200f3f8
000003e00200f3f0: a7f40001 brc 15,3e00200f3f2
>000003e00200f3f4: a7f40000 brc 15,3e00200f3f4
000003e00200f3f8: e3b040100004 lg %r11,16(%r4)
000003e00200f3fe: b90200bb ltgr %r11,%r11
000003e00200f402: a78404ea brc 8,3e00200fdd6
000003e00200f406: 5810b000 l %r1,0(%r11)
Call Trace:
([<000003e00200f388>] ext4_ext_get_blocks+0x1d4/0x10cc [ext4])
[<000003e001fed31e>] ext4_get_blocks+0xba/0x3c0 [ext4]
[<000003e001fee9d8>] ext4_get_block+0xcc/0x114 [ext4]
[<00000000001449ba>] do_mpage_readpage+0x1fa/0x688
[<0000000000144f7a>] mpage_readpages+0xae/0x100
[<00000000000d49f8>] __do_page_cache_readahead+0x160/0x1f4
[<00000000000d4acc>] ra_submit+0x40/0x54
[<00000000000d4f94>] page_cache_sync_readahead+0x40/0x50
[<00000000000cc334>] generic_file_aio_read+0x284/0x6a4
[<000000000010ed34>] do_sync_read+0xd0/0x118
[<000000000010fad0>] vfs_read+0xa8/0x174
[<000000000010fc92>] SyS_read+0x56/0x84
[<0000000000027f5a>] sysc_tracego+0xe/0x14
[<0000004e53f12cc4>] 0x4e53f12cc4
Last Breaking-Event-Address:
[<000003e00200f3f0>] ext4_ext_get_blocks+0x23c/0x10cc [ext4]
---[ end trace 7a3a53bbf5dda9be ]---
Related code:
2858 /*
2859 * consistent leaf must not be empty;
2860 * this situation is possible, though, _during_ tree
modification;
2861 * this is why assert can't be put in ext4_ext_find_extent()
2862 */
2863 BUG_ON(path[depth].p_ext == NULL && depth != 0);
2864 eh = path[depth].p_hdr;
2865
--
Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.
next reply other threads:[~2009-10-01 5:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-01 5:41 bugzilla-daemon [this message]
2009-10-01 5:47 ` [Bug 14286] kernel BUG at fs/ext4/extents.c:2863 bugzilla-daemon
2009-10-01 5:50 ` bugzilla-daemon
2009-10-01 5:58 ` bugzilla-daemon
2009-10-16 12:30 ` bugzilla-daemon
2009-12-14 15:39 ` bugzilla-daemon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-14286-13602@http.bugzilla.kernel.org/ \
--to=bugzilla-daemon@bugzilla.kernel.org \
--cc=linux-ext4@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.