loop device corruption in 2.4.6

From: Mark Swanson (swansma@yahoo.com)
Date: Wed Jul 04 2001 - 16:14:02 EST


I get repeatable errors with 2.4.6 patched with the international encryption
patch patch-int- when building loop device filesystems on top of

All I have to do is:

1. dd if=/dev/zero of=testfs bs=1024 count=100000
2. losetup -e aes /dev/loop0 ./testfs
3. mke2fs /dev/loop0
4. mount /dev/loop0 ./test
5. cd test ; touch m ; cd ..
6. umount ./test
7. losetup -d /dev/loop0
8. losetup -e aes /dev/loop0 ./testfs
9. e2fsck /dev/loop0 *** All heck breaks loose.

The thing is, I can still mount previously created AES loopback filesystems
but I can't e2fsck them. Well, if I do I get the following:

e2fsck 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Group descriptors look bad... trying backup blocks...
Inode count in superblock is 27112, should be 25064.
Fix? yes

Block bitmap for group 0 is not in group. (block 1569951131)
Relocate? yes

Inode bitmap for group 0 is not in group. (block 1258458187)
Relocate? yes

Inode table for group 0 is not in group. (block 865539952)

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This archive was generated by hypermail 2b29 : Sat Jul 07 2001 - 21:00:14 EST