linux-ext4 - Free blocks count wrong following shrink with resize2fs

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Date:	Sun, 28 Dec 2008 11:00:11 +0100 (CET)
From:	Christian Kujau <lists@...dbynature.de>
To:	linux-ext4@...r.kernel.org
Subject: Free blocks count wrong following shrink with resize2fs

Since I'm not *entirely* sure if this is related to the the extent header 
issue[0], I thought I just report it:

When shrinking a filesystem with resize2fs, fsck.ext4 (1.41.3, 
12-Oct-2008) reports:

------------
Pass 5: Checking group summary information
Block bitmap differences:  -(2488--2493) -(149959--151395)
Fix<y>? yes
Free blocks count wrong for group #0 (3188, counted=3194).
Fix<y>? yes
Free blocks count wrong for group #4 (10182, counted=11619).
Fix<y>? yes
Free blocks count wrong (26225, counted=27668).
Fix<y>? yes
-----------

After this, the filesystem is perfectly fine though, no corruptions have 
been noticed yet. I'm even able to mount it without running fsck after the 
resize2fs. I've put a few more details here:

   http://nerdbynature.de/bits/2.6.28/

Thanks,
Christian.
[0] http://thread.gmane.org/gmane.comp.file-systems.ext4/10736

PS: As my rootfs is also on ext4, I noticed another, completely unrelated oddity:

[    1.604198] Using IPI Shortcut mode
[    1.608394] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input0
[    1.737198] EXT3-fs: hda1: couldn't mount because of unsupported optional features (240).
[    1.754302] EXT4-fs: barriers enabled
[    1.773267] kjournald2 starting.  Commit interval 5 seconds

...this is befor INIT starts, so who's trying to mount "/" as ext3 first?

-- 
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Plumber mistook routing panel for decorative wall fixture
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