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-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
