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following link:
https://bugzilla.lustre.org/show_bug.cgi?id=11672
What |Removed |Added
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OtherBugsDependingO| |2840
nThis| |
(In reply to comment #0)
> When fsck replays the journal, it clears the EXT3_FEATURE_INCOMPAT_RECOVER
> feature, dirties the superblock, and closes the file system. Unfortunately,
> the
> file system EXT2_FLAG_MASTER_SB_ONLY flag is not set at this time, so it
> copies
> the primary superblock and group descriptors over all the backups. Then fsck
> restarts and checks the superblock for consistancy. If the superblock or
> group
> descriptors are then found to be bad, all your backups are now also bad.
Ouch, this is a major problem that deserves to be pushed upstream ASAP. I've
emailed Ted and CC'd you and ext4-devel on it. Yet another reason to get the
journal checksum patch going.
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