fs corruption with 2.6.28-ext4-4
I am guessing that this doesn't belong in bugzilla since it's not a mainline kernel I'm talking about. Sorry if this is still the wrong venue.
On two different computers, I experienced file system corruption after upgrading the kernel to 2.6.28-ext4-4 (meaning, mainline 2.6.28 kernel with the 2.6.28-ext4-4 patchset from http://www2.kernel.org/pub/linux/kernel/people/tytso/ext4-patches/ applied).
On Computer #1, an ext4 file system would not mount on reboot. fsck reported that hundreds (all?) of the group descriptors were corrupted.
On Computer #2, the ext2 file system on an external drive became corrupted with cross linked blocks. The file system mounted but the kernel soon began reporting problems with it.
In both cases, the corruption seemed to occur at about the time that I created a large file (> 4 GiB) using the 2.6.28-ext4-4 kernel. An older computer that I configured with the same kernel and an ext4 file system for testing, before the others were upgraded, still has no problems--but it has a smaller hard drive and no large files.
I am in the process of reverting to a stable configuration, but please accept this experience report for what it is worth.
Thank you,
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David Flater, National Institute of Standards and Technology, U.S.A.