Re: [MC] [CHECKER] Do ext2, jfs and reiserfs respect mount -o sync/dirsync option?

Junfeng Yang
2005-03-04T09:44:46Z

> That would be a bug. Please send the e2fsck output.

Here is the trace

1. file system is made with sbin/mkfs.ext2 -F -b 1024 /dev/hda9 60
and mounted with -o sync,dirsync

1. operations FiSC did:

creat(/mnt/sbd0/0001)
write(/mnt/sbd0/0001)
rename(/mnt/sbd0/0001, /mnt/sbd0/0002)
mkdir(/mnt/sbd0/0003)

2. FiSC "crashed" the test machine after mkdir returns. Crashed
disk image can be downloaded at: http://fisc.stanford.edu/bug2/crash.img.bz2

e2fsck output is:

e2fsck 1.36 (05-Feb-2005)
/dev/hda9 was not cleanly unmounted, check
forced.
Pass 1: Checking inodes, blocks, and sizes
Inode 12, i_blocks is 16, should be 2. Fix? yes

Pass 2: Checking directory structure
Entry '0003' in / (2) has deleted/unused inode 13. Clear? yes

Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences: -21
Fix? yes

Free blocks count wrong for group #0 (38, counted=39).
Fix? yes

Free blocks count wrong (38, counted=39).
Fix? yes

Inode bitmap differences: -13
Fix? yes

Free inodes count wrong for group #0 (3, counted=4).
Fix? yes

Directories count wrong for group #0 (3, counted=2).
Fix? yes

Free inodes count wrong (3, counted=4).
Fix? yes

/dev/hda9: ***** FILE SYSTEM WAS MODIFIED
*****
/dev/hda9: 12/16 files (0.0% non-contiguous), 21/60 blocks

>
>
> It would be much better to test vaguely contemporary kernels.
>

I'm going to check 2.6.11 tonight.