From: bugzilla-daemon@bugzilla.kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 42895] jbd2 makes all system unresponsive
Date: Wed, 2 May 2012 16:08:49 GMT [thread overview]
Message-ID: <201205021608.q42G8nHM019903@bugzilla.kernel.org> (raw)
In-Reply-To: <bug-42895-13602@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=42895
Theodore Tso <tytso@mit.edu> changed:
What |Removed |Added
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CC| |tytso@mit.edu
--- Comment #3 from Theodore Tso <tytso@mit.edu> 2012-05-02 16:08:48 ---
It sounds like something in userspace is simply calling fsync() very
frequently. Can you try the following:
echo 1 > /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable
... then wait for a minute or so, and then capture the output of:
cat /sys/kernel/debug/tracing/trace
That should allow us to see what is causing the excess commits.
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next prev parent reply other threads:[~2012-05-02 16:08 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-09 10:42 [Bug 42895] New: jbd2 makes all system unresponsive bugzilla-daemon
2012-03-09 10:49 ` [Bug 42895] " bugzilla-daemon
2012-05-02 12:10 ` bugzilla-daemon
2012-05-02 16:08 ` bugzilla-daemon [this message]
2012-05-02 16:10 ` bugzilla-daemon
2012-05-02 18:49 ` bugzilla-daemon
2012-05-02 19:50 ` bugzilla-daemon
2012-05-05 20:42 ` bugzilla-daemon
2012-05-13 15:30 ` bugzilla-daemon
2012-05-14 10:44 ` bugzilla-daemon
2012-05-14 21:43 ` bugzilla-daemon
2012-05-15 14:40 ` bugzilla-daemon
2012-05-15 14:54 ` bugzilla-daemon
2012-05-16 16:34 ` bugzilla-daemon
2012-05-16 19:29 ` bugzilla-daemon
2012-05-16 20:24 ` bugzilla-daemon
2012-05-17 16:34 ` bugzilla-daemon
2012-05-17 18:34 ` bugzilla-daemon
2012-05-17 20:02 ` bugzilla-daemon
2012-05-17 21:18 ` bugzilla-daemon
2012-05-18 14:52 ` bugzilla-daemon
2012-07-30 20:00 ` bugzilla-daemon
2012-08-01 2:43 ` bugzilla-daemon
2012-08-01 2:45 ` bugzilla-daemon
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