Eric Sandeen wrote: > ext[234]_check_descriptors sanity checks block group descriptor geometry > at mount time, testing whether the block bitmap, inode bitmap, and > inode table reside wholly within the blockgroup. However, the inode > table test is off by one so that if the last block in the inode table > resides on the last block of the block group, the test incorrectly > fails. This is because it tests the last block as (start + length) > rather than (start + length - 1). > > This can be seen by trying to mount a filesystem made such as: > mkfs.ext2 -F -b 1024 -m 0 -g 256 -N 3744 fsfile 1024 > which yields: > EXT2-fs error (device loop0): ext2_check_descriptors: Inode table for group 0 not in group (block 101)! > EXT2-fs: group descriptors corrupted! Hm, sorry, after seeing Miklos' last patches... should I be sending these as 3 different patches for ext2, 3, and 4...? -Eric (who really doesn't want to make Andrew mad at him) :) - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
