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* [Bug 60786] New: xfstest generic/068 failure - kernel BUG at fs/jbd2/transaction.c:2143!
@ 2013-08-23 23:51 bugzilla-daemon
  2014-03-12 20:44 ` [Bug 60786] " bugzilla-daemon
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: bugzilla-daemon @ 2013-08-23 23:51 UTC (permalink / raw)
  To: linux-ext4

https://bugzilla.kernel.org/show_bug.cgi?id=60786

            Bug ID: 60786
           Summary: xfstest generic/068 failure - kernel BUG at
                    fs/jbd2/transaction.c:2143!
           Product: File System
           Version: 2.5
    Kernel Version: 3.11-rc6
          Hardware: ARM
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ext4
          Assignee: fs_ext4@kernel-bugs.osdl.org
          Reporter: enwlinux@gmail.com
        Regression: No

Created attachment 107296
  --> https://bugzilla.kernel.org/attachment.cgi?id=107296&action=edit
kernel trace from Pandaboard running 3.11-rc6

Xfstest generic/068 fails roughly 40% of the time when run on a Pandaboard ES
(ARM) against a test filesystem mounted with the data=journal option.  In this
case, an assertion fails in the kernel: "kernel BUG at
fs/jbd2/transaction.c:2143!" (full trace attached).  This is a long-standing
bug which may have become more visible in recent releases;  it's now become a
notable annoyance during routine regression testing.  Recovering from the bug
requires rebooting and power-cycling the Pandaboard.

The same bug has been seen on x86-64 in previous releases / release candidates,
but appears to occur at much lower frequency.  It did not occur once in 20
trials on an x86-64 KVM guest configured similarly to the Pandaboard test
system running 3.11-rc6 (although another BUG, reported separately, did).

It looks like Jan Kara may have made the most recent comments related to this
and another similar bug: http://www.spinics.net/lists/linux-ext4/msg36858.html.
(Note that the statement currently at line 2143 in transaction.c was at line
1986 in 3.8.)

Test system hardware configuration:

Pandaboard ES (2 core TI OMAP4 ARM CPU, 1 GB memory)
1 TB Western Digital SATA III disk in USB2-attached external enclosure
Test file systems located in three 5.37 GB partitions on USB-attached disk


Test system software configuration:

Mainline kernel 3.11-rc6 on Ubuntu 12.10 base
e2fsprogs, master branch 93061ea0f4d9f94579d09480f17dd47169c82081
xfsprogs, master branch 20526770e76013587c6148fef9e30ac85332fa65
xfstests, master branch 54d6adf7c98500a177f0507c5905ed6dfb2fa888
xfstests-bld, master branch 723c23e1b2756b911dbb50bbd08c0afa5b836e3b

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2013-08-23 23:51 [Bug 60786] New: xfstest generic/068 failure - kernel BUG at fs/jbd2/transaction.c:2143! bugzilla-daemon
2014-03-12 20:44 ` [Bug 60786] " bugzilla-daemon
2015-07-22 18:32 ` bugzilla-daemon
2015-07-22 18:37 ` bugzilla-daemon

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