linux-ext4 - e2fsck and backup superblocks

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Date:	Fri, 17 Feb 2012 22:00:09 -0500
From:	Phillip Susi <psusi@...ntu.com>
To:	linux-ext4@...r.kernel.org
Subject: e2fsck and backup superblocks

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I have noticed that e2fsck always complains about block group descriptor checksums being invalid when run on a backup superblock, even when run again immediately after being told to fix them.  Is there some odd intentional behavior here I'm not aware of?

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