linux-ext4 - [Bug 198187] jbd2_log_wait

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Date:   Mon, 18 Dec 2017 23:39:10 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...nel.org
Subject: [Bug 198187] jbd2_log_wait_commit hangs

https://bugzilla.kernel.org/show_bug.cgi?id=198187

Theodore Tso (tytso@....edu) changed:

           What    |Removed                     |Added
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                 CC|                            |tytso@....edu

--- Comment #1 from Theodore Tso (tytso@....edu) ---
How often/frequently/reliably does the problem reproduce?

Can you get console messages either from dmesg or copied from a serial console
(if you have serial console monitoring)?   Also useful would be to get the
output from the following magic sysrq sequences: sysrq-l and sysrq-t  (this
involves using the break key if you are using a serial console, which is the
most desirable way to get the output since there is a huge amount of ouput).

Also, please let us know what the hardware configuration is, since it's
possible this is related to change in a block device driver.

Finally, please file a bug with Fedora since this may be something which is
caused by a Fedora specific patch and the Fedora kernel maintainers are more
likely to be able to notice clustering of symptoms from Fedora users.

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