linux-ext4 - [Bug 16583] ext4: delayed block allocation failed and application not respond any more

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Message-Id: <20120813193425.7199511FB49@bugzilla.kernel.org>
Date:	Mon, 13 Aug 2012 19:34:25 +0000 (UTC)
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 16583] ext4: delayed block allocation failed and application
 not respond any more

https://bugzilla.kernel.org/show_bug.cgi?id=16583

Theodore Tso <tytso@....edu> changed:

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

--- Comment #3 from Theodore Tso <tytso@....edu>  2012-08-13 19:34:25 ---
Also, in the original bug report, (which was against an usptream kernel,
2.6.35) note:

EXT4-fs (dm-6): warning: mounting fs with errors, running e2fsck is recommended

If this means the file system was mounted with inconsistencies noted in the
past.

And sure enough...

EXT4-fs error (device dm-6): ext4_ext_search_left: inode #3510: (comm
flush-254:6) ix (42117) != EXT_FIRST_INDEX (0) (depth 1)!

... is a file system inconsistency. 

The second reporter, Loredan, was using a Red Hat modified 2.6.32 kernel, and
the RHEL 2.6.32 kernel is significantly different from upstream.  I will note
that it wasn't clear whether the file system was being grown or shrunk, but in
the more typical case of growing the file system, in general you should resize
the LVM first, and *then* run resize2fs to resize the filesystem to use the
newly enlarged LV.

Regards,

-- Ted

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