Hi,
I'm trying debug an issue with my one of my disks in my system. I have an ext3
file system mounted and ls -l is reporting an impossible size for two of the
files: log_1848_1239927341.core and log_1848_1239927341.core~. The size is 98P.
This partition (/dev/sdb2) is only a few GB in size. I thought there could be a
possible corruption of the filesystem, but when I mount the partition with
debugfs, it reports the correct size for the files. In addition, fsck finds no
errors.
The OS is Linux, Kernel version 2.6.21.
Please see the capture below.
Thanks,
Chris
r...@localhost:/root> df /mnt/sys/external
Filesystem 1K-blocks Used Available Use% Mounted on
- 2949060 71092 2728164 3% /mnt/sys/external
r...@localhost:/root> cd /mnt/sys/external
r...@localhost:/mnt/sys/external> ls -l
total 1108
-rwxrwxrwx 1 root root 109775240942714880 Apr 30 08:12 log_1848_1239927341.core
-rwxrwxrwx 1 root root 109775240942714880 Apr 30 03:53 log_1848_1239927341.core~
drwxrwxrwx 2 root root 16384 Mar 5 02:51 lost+found
-rwxrwxrwx 1 root root 24833 May 14 02:32 test.file
-rwxrwxrwx 1 root root 738836 May 14 02:33 test2.file
r...@localhost:/mnt/sys/external> ls -lh
total 1.1M
-rwxrwxrwx 1 root root 98P Apr 30 08:12 log_1848_1239927341.core
-rwxrwxrwx 1 root root 98P Apr 30 03:53 log_1848_1239927341.core~
drwxrwxrwx 2 root root 16K Mar 5 02:51 lost+found
-rwxrwxrwx 1 root root 25K May 14 02:32 test.file
-rwxrwxrwx 1 root root 722K May 14 02:33 test2.file
r...@localhost:/mnt/sys/external> ls -li
total 1108
13 -rwxrwxrwx 1 root root 109775240942714880 Apr 30 08:12
log_1848_1239927341.core
12 -rwxrwxrwx 1 root root 109775240942714880 Apr 30 03:53
log_1848_1239927341.core~
11 drwxrwxrwx 2 root root 16384 Mar 5 02:51 lost+found
14 -rwxrwxrwx 1 root root 24833 May 14 02:32 test.file
15 -rwxrwxrwx 1 root root 738836 May 14 02:33 test2.file
r...@localhost:/mnt/sys/external>
r...@localhost:/mnt/sys/external> cd ..
r...@localhost:/mnt/sys> umount /mnt/sys/external
r...@localhost:/mnt/sys> fsck -a /dev/sdb2
fsck 1.39 (29-May-2006)
/dev/sdb2: clean, 15/374624 files, 29538/749030 blocks (check in 4 mounts)
r...@localhost:/mnt/sys> fsck -V /dev/sdb2
fsck 1.39 (29-May-2006)
[/sbin/fsck.ext3 (1) -- /dev/sdb2] fsck.ext3 /dev/sdb2
e2fsck 1.39 (29-May-2006)
/dev/sdb2: clean, 15/374624 files, 29538/749030 blocks (check in 4 mounts)
r...@localhost:/mnt/sys> debugfs /dev/sdb2
debugfs 1.39 (29-May-2006)
debugfs: imap 13
13: File not found by ext2_lookup
debugfs: imap log_1848_1239927341.core
Inode 13 is part of block group 0
located at block 186, offset 0x0600
debugfs: stat log_1848_1239927341.core
Inode: 13 Type: regular Mode: 0777 Flags: 0x0 Generation: 2408179396
User: 0 Group: 0 Size: 25559040
File ACL: 0 Directory ACL: 0
Links: 1 Blockcount: 336
Fragment: Address: 0 Number: 0 Size: 0
ctime: 0x4a0e6497 -- Sat May 16 07:00:39 2009
atime: 0x4a0e65a6 -- Sat May 16 07:05:10 2009
mtime: 0x49f95d85 -- Thu Apr 30 08:12:53 2009
BLOCKS:
(0):30720, (2-4):30721-30723, (6):30724, (IND):30725, (36-37):30726-30727, (DIND
):30728, (IND):30729, (2084-2085):30730-30731, (IND):30732, (4132-4133):30733-30
734, (IND):30735, (6180-6182):30736-30738, (6198-6214):30739-30755, (6216-6218):
30756-30758, (6237-6239):30759-30761
TOTAL: 42
debugfs: stat log_1848_1239927341.core
Inode: 13 Type: regular Mode: 0777 Flags: 0x0 Generation: 2408179396
User: 0 Group: 0 Size: 25559040
File ACL: 0 Directory ACL: 0
Links: 1 Blockcount: 336
Fragment: Address: 0 Number: 0 Size: 0
ctime: 0x4a0e6497 -- Sat May 16 07:00:39 2009
atime: 0x4a0e65a6 -- Sat May 16 07:05:10 2009
mtime: 0x49f95d85 -- Thu Apr 30 08:12:53 2009
BLOCKS:
(0):30720, (2-4):30721-30723, (6):30724, (IND):30725, (36-37):30726-30727, (DIND
):30728, (IND):30729, (2084-2085):30730-30731, (IND):30732, (4132-4133):30733-30
734, (IND):30735, (6180-6182):30736-30738, (6198-6214):30739-30755, (6216-6218):
30756-30758, (6237-6239):30759-30761
TOTAL: 42
debugfs: quit
r...@localhost:/mnt/sys> debugfs /dev/sdb2
debugfs 1.39 (29-May-2006)
debugfs: ls -l
2 40777 (2) 0 0 4096 14-May-2009 02:33 .
2 40777 (2) 0 0 4096 14-May-2009 02:33 ..
11 40777 (2) 0 0 16384 5-Mar-2009 02:51 lost+found
13 100777 (1) 0 0 25559040 30-Apr-2009 08:12
log_1848_1239927341.core
12 100777 (1) 0 0 25559040 30-Apr-2009 03:53
log_1848_1239927341.core~
14 100777 (1) 0 0 24833 14-May-2009 02:32 test.file
15 100777 (1) 0 0 738836 14-May-2009 02:33 test2.file
debugfs: quit
r...@localhost:/mnt/sys> mount -t ext2 /dev/sdb2 external
r...@localhost:/mnt/sys> cd external
r...@localhost:/mnt/sys/external> ls -l
total 1108
-rwxrwxrwx 1 root root 109775240942714880 Apr 30 08:12 log_1848_1239927341.core
-rwxrwxrwx 1 root root 109775240942714880 Apr 30 03:53 log_1848_1239927341.core~
drwxrwxrwx 2 root root 16384 Mar 5 02:51 lost+found
-rwxrwxrwx 1 root root 24833 May 14 02:32 test.file
-rwxrwxrwx 1 root root 738836 May 14 02:33 test2.file
r...@localhost:/mnt/sys/external> ls -lh
total 1.1M
-rwxrwxrwx 1 root root 98P Apr 30 08:12 log_1848_1239927341.core
-rwxrwxrwx 1 root root 98P Apr 30 03:53 log_1848_1239927341.core~
drwxrwxrwx 2 root root 16K Mar 5 02:51 lost+found
-rwxrwxrwx 1 root root 25K May 14 02:32 test.file
-rwxrwxrwx 1 root root 722K May 14 02:33 test2.file
r...@localhost:/mnt/sys/external> cd ../
r...@localhost:/mnt/sys> umount /dev/sdb2
r...@localhost:/mnt/sys> debugfs /dev/sdb2
debugfs 1.39 (29-May-2006)
debugfs: show_super_stats
Filesystem volume name: <none>
Last mounted on: <not available>
Filesystem UUID: 7b4b6ce4-2418-4d0b-9362-a6de6bacad1e
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal resize_inode dir_index filetype sparse_sup
er large_file
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 374624
Block count: 749030
Reserved block count: 37451
Free blocks: 719492
Free inodes: 374609
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 182
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 16288
Inode blocks per group: 509
Filesystem created: Thu Mar 5 02:51:38 2009
Last mount time: Sat May 16 07:13:43 2009
Last write time: Sat May 16 07:14:50 2009
Mount count: 34
Maximum mount count: 37
Last checked: Sat May 9 04:24:18 2009
Check interval: 15552000 (6 months)
Next check after: Thu Nov 5 04:24:18 2009
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: c78b70f8-775d-4913-a2ca-d81657c55315
Journal backup: inode blocks
Directories: 2
Group 0: block bitmap at 184, inode bitmap at 185, inode table at 186
15392 free blocks, 16273 free inodes, 2 used directories
Group 1: block bitmap at 32952, inode bitmap at 32953, inode table at 32954
32073 free blocks, 16288 free inodes, 0 used directories
Group 2: block bitmap at 65536, inode bitmap at 65537, inode table at 65538
32257 free blocks, 16288 free inodes, 0 used directories
Group 3: block bitmap at 98488, inode bitmap at 98489, inode table at 98490
32073 free blocks, 16288 free inodes, 0 used directories
Group 4: block bitmap at 131072, inode bitmap at 131073, inode table at 131074
32257 free blocks, 16288 free inodes, 0 used directories
Group 5: block bitmap at 164024, inode bitmap at 164025, inode table at 164026
32073 free blocks, 16288 free inodes, 0 used directories
Group 6: block bitmap at 196608, inode bitmap at 196609, inode table at 196610
32257 free blocks, 16288 free inodes, 0 used directories
Group 7: block bitmap at 229560, inode bitmap at 229561, inode table at 229562
32073 free blocks, 16288 free inodes, 0 used directories
Group 8: block bitmap at 262144, inode bitmap at 262145, inode table at 262146
32257 free blocks, 16288 free inodes, 0 used directories
Group 9: block bitmap at 295096, inode bitmap at 295097, inode table at 295098
32073 free blocks, 16288 free inodes, 0 used directories
Group 10: block bitmap at 327680, inode bitmap at 327681, inode table at 327682
32257 free blocks, 16288 free inodes, 0 used directories
Group 11: block bitmap at 360448, inode bitmap at 360449, inode table at 360450
32257 free blocks, 16288 free inodes, 0 used directories
Group 12: block bitmap at 393216, inode bitmap at 393217, inode table at 393218
32257 free blocks, 16288 free inodes, 0 used directories
Group 13: block bitmap at 425984, inode bitmap at 425985, inode table at 425986
32257 free blocks, 16288 free inodes, 0 used directories
Group 14: block bitmap at 458752, inode bitmap at 458753, inode table at 458754
32257 free blocks, 16288 free inodes, 0 used directories
Group 15: block bitmap at 491520, inode bitmap at 491521, inode table at 491522
32257 free blocks, 16288 free inodes, 0 used directories
Group 16: block bitmap at 524288, inode bitmap at 524289, inode table at 524290
32257 free blocks, 16288 free inodes, 0 used directories
Group 17: block bitmap at 557056, inode bitmap at 557057, inode table at 557058
32257 free blocks, 16288 free inodes, 0 used directories
Group 18: block bitmap at 589824, inode bitmap at 589825, inode table at 589826
32257 free blocks, 16288 free inodes, 0 used directories
Group 19: block bitmap at 622592, inode bitmap at 622593, inode table at 622594
32257 free blocks, 16288 free inodes, 0 used directories
Group 20: block bitmap at 655360, inode bitmap at 655361, inode table at 655362
32257 free blocks, 16288 free inodes, 0 used directories
Group 21: block bitmap at 688128, inode bitmap at 688129, inode table at 688130
32257 free blocks, 16288 free inodes, 0 used directories
Group 22: block bitmap at 720896, inode bitmap at 720897, inode table at 720898
27623 free blocks, 16288 free inodes, 0 used directories
debugfs:
debugfs:
debugfs:
debugfs: quit
r...@localhost:/mnt/sys>
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