Filesystem still has errors

Raimund andersen
2009-02-11T22:15:08Z

Hi,

I'm using ext4 as a root fs on my 2.6.28-gentoo-r1 (x86_64), and after a few
locks due to X misconfiguration, which forced me to hard-reset, I sometimes get
the 'no space left on device' error message when trying to create new files. But
that's not true:

#>df
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 201585632 16234952 175110680 9% /
/dev/root 201585632 16234952 175110680 9% /
(...)

#>df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
rootfs 12804096 520672 12283424 5% /
/dev/root 12804096 520672 12283424 5% /
(...)

#>fsck.ext4 -fnv /dev/sda9
e2fsck 1.41.4 (27-Jan-2009)
Warning! /dev/sda9 is mounted.
Warning: skipping journal recovery because doing a read-only filesystem check.
Pass 1: Checking inodes, blocks, and sizes
Deleted inode 447291 has zero dtime. Fix? no

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Inode bitmap differences: -447291
Fix? no

/dev/sda9: ********** WARNING: Filesystem still has errors **********

520672 inodes used (4.07%)
379 non-contiguous files (0.1%)
258 non-contiguous directories (0.0%)
# of inodes with ind/dind/tind blocks: 0/0/0
Extent depth histogram: 512092/62
4862330 blocks used (9.50%)
0 bad blocks
2 large files

468666 regular files
42140 directories
157 character device files
31 block device files
2 fifos
5149 links
9643 symbolic links (8294 fast symbolic links)
23 sockets
--------
525811 files

One reboot earlier, the messages where similar:

#> fsck.ext4 -nv /dev/sda9
e2fsck 1.41.4 (27-Jan-2009)
Warning! /dev/sda9 is mounted.
Warning: skipping journal recovery because doing a read-only filesystem check.
/dev/sda9 contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Deleted inode 447291 has zero dtime. Fix? no

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Free blocks count wrong (46338006, counted=46337933).
Fix? no

Inode bitmap differences: -447291
Fix? no

Free inodes count wrong (12283475, counted=12283437).
Fix? no

/dev/sda9: ********** WARNING: Filesystem still has errors **********

520621 inodes used (4.07%)
378 non-contiguous files (0.1%)
258 non-contiguous directories (0.0%)
# of inodes with ind/dind/tind blocks: 0/0/0
Extent depth histogram: 512079/62
4861994 blocks used (9.50%)
0 bad blocks
2 large files

468655 regular files
42138 directories
157 character device files
31 block device files
2 fifos
5149 links
9643 symbolic links (8294 fast symbolic links)
23 sockets
--------
525798 files

of course, I hesitate to call e2fsck.ext4 without -n on my mounted root-fs.
But when being invoked from an outside installed linux, no errors are detected:

#> fsck.ext4 -fnv /dev/sdb9
e2fsck 1.41.4 (27-Jan-2009)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

520634 inodes used (4.07%)
379 non-contiguous files (0.1%)
258 non-contiguous directories (0.0%)
# of inodes with ind/dind/tind blocks: 0/0/0
Extent depth histogram: 512068/62
4862059 blocks used (9.50%)
0 bad blocks
2 large files

468644 regular files
42138 directories
157 character device files
31 block device files
2 fifos
5149 links
9642 symbolic links (8293 fast symbolic links)
11 sockets
--------
525774 files

The same is true with putting a '/forcefsck'; the filesystem is checked and no
error message appears.
But when invoking fsck manually after full bootup, fs is still corrupted.

So what should I do?

Any help is greatly apreciated.

Raimund