[Jfs-discussion] Help: jfs_fsck Segfaults on failed drive
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[Jfs-discussion] Help: jfs_fsck Segfaults on failed drive
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From: Paul L. <pau...@ea...> - 2004-07-21 07:00:00
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I had a failure on my JFS drive that was preventing my Linux machine
from booting. I booted up knoppix and ran fsck on it. It seemed to
work and I was able to mount the drive under knoppix. However, on
reboot, the drive still failed to load properly. So back into Knoppix
and another try at fsck. This time I get a Segfault. I played a little
with jfs_debugfs but I don't know how to do much other than look
around. Below is the output of jfs_fsck. I also tried version 1.1.6
and got the same output and Segfault. I also appended some outputs from
jfs_debugfs. Anyone have an idea how to get this drive working again?
At least enough to get some files off before I reformat it?
Thanks,
Paul Lanier
root@tty1[knoppix]# jfs_fsck /dev/hda6
jfs_fsck version 1.1.4, 30-Oct-2003
processing started: 7/20/2004 15.36.5
Using default parameter: -p
The current device is: /dev/hda6
Block size in bytes: 4096
Filesystem size in blocks: 4640564
**Phase 0 - Replay Journal Log
Segmentation Fault
root@tty1[knoppix]# jfs_fsck -n /dev/hda6
jfs_fsck version 1.1.4, 30-Oct-2003
processing started: 7/20/2004 15.36.5
The current device is: /dev/hda6
Block size in bytes: 4096
Filesystem size in blocks: 4640564
**Phase 1 - Check Blocks, Files/Directories, and Directory Entries
cannot repair an allocation error for files and/or directories
-1757994816 through -1757994785.
Segmentation Fault
jfs_debugfs version 1.1.6, 28-Apr-2004
Aggregate Block Size: 4096
>su p
[1] s_magic: 'JFS1' [15] s_ait2.addr1: 0x00
[2] s_version: 1 [16] s_ait2.addr2: 0x0000024d
[3] s_size: 0x0000000002357398 s_ait2.address: 589
[4] s_bsize: 4096 [17] s_logdev: 0x00000306
[5] s_l2bsize: 12 [18] s_logserial: 0x00000009
[6] s_l2bfactor: 3 [19] s_logpxd.len: 8192
[7] s_pbsize: 512 [20] s_logpxd.addr1: 0x00
[8] s_l2pbsize: 9 [21] s_logpxd.addr2: 0x0046af34
[9] pad: Not Displayed s_logpxd.address: 4632372
[10] s_agsize: 0x00010000 [22] s_fsckpxd.len: 193
[11] s_flag: 0x10200900 [23] s_fsckpxd.addr1: 0x00
JFS_LINUX [24] s_fsckpxd.addr2: 0x0046ae73
JFS_COMMIT JFS_GROUPCOMMIT s_fsckpxd.address: 4632179
JFS_INLINELOG [25] s_time.tv_sec: 0x40ca0ad7
[26] s_time.tv_nsec: 0x00000000
[27] s_fpack: ''
[12] s_state: 0x00000001
FM_MOUNT
[13] s_compress: 0
[14] s_ait2.len: 4
display_super: [m]odify or e[x]it:
>su s
[1] s_magic: 'JFS1' [15] s_ait2.addr1: 0x00
[2] s_version: 1 [16] s_ait2.addr2: 0x0000024d
[3] s_size: 0x0000000002357398 s_ait2.address: 589
[4] s_bsize: 4096 [17] s_logdev: 0x00000306
[5] s_l2bsize: 12 [18] s_logserial: 0x00000008
[6] s_l2bfactor: 3 [19] s_logpxd.len: 8192
[7] s_pbsize: 512 [20] s_logpxd.addr1: 0x00
[8] s_l2pbsize: 9 [21] s_logpxd.addr2: 0x0046af34
[9] pad: Not Displayed s_logpxd.address: 4632372
[10] s_agsize: 0x00010000 [22] s_fsckpxd.len: 193
[11] s_flag: 0x10200900 [23] s_fsckpxd.addr1: 0x00
JFS_LINUX [24] s_fsckpxd.addr2: 0x0046ae73
JFS_COMMIT JFS_GROUPCOMMIT s_fsckpxd.address: 4632179
JFS_INLINELOG [25] s_time.tv_sec: 0x40ca0ad7
[26] s_time.tv_nsec: 0x00000000
[27] s_fpack: ''
[12] s_state: 0x00000000
FM_CLEAN
[13] s_compress: 0
[14] s_ait2.len: 4
display_super: [m]odify or e[x]it:
> s2p p
[1] s_magic: 'JFS1' [16] s_aim2.len: 2
[2] s_version: 1 [17] s_aim2.addr1: 0x00
[3] s_size: 0x0000000002357398 [18] s_aim2.addr2: 0x0000024b
[4] s_bsize: 4096 s_aim2.address: 587
[5] s_l2bsize: 12 [19] s_logdev: 0x00000306
[6] s_l2bfactor: 3 [20] s_logserial: 0x00000009
[7] s_pbsize: 512 [21] s_logpxd.len: 8192
[8] s_l2pbsize: 9 [22] s_logpxd.addr1: 0x00
[9] s_agsize: 0x00010000 [23] s_logpxd.addr2: 0x0046af34
[10] s_flag: 0x10200900 s_logpxd.address: 4632372
LINUX [24] s_fsckpxd.len: 193
GROUPCOMMIT [25] s_fsckpxd.addr1: 0x00
INLINELOG [26] s_fsckpxd.addr2:
0x0046ae73
s_fsckpxd.address: 4632179
[11] s_state: 0x00000001 [27] s_fsckloglen: 50
MOUNT [28] s_fscklog: 2
[12] s_compress: 0 [29] s_fpack: ' '
[13] s_ait2.len: 4
[14] s_ait2.addr1: 0x00
[15] s_ait2.addr2: 0x0000024d
s_ait2.address: 589
display_super2: [m]odify or e[x]it:
>s2p s
[1] s_magic: 'JFS1' [16] s_aim2.len: 2
[2] s_version: 1 [17] s_aim2.addr1: 0x00
[3] s_size: 0x0000000002357398 [18] s_aim2.addr2: 0x0000024b
[4] s_bsize: 4096 s_aim2.address: 587
[5] s_l2bsize: 12 [19] s_logdev: 0x00000306
[6] s_l2bfactor: 3 [20] s_logserial: 0x00000008
[7] s_pbsize: 512 [21] s_logpxd.len: 8192
[8] s_l2pbsize: 9 [22] s_logpxd.addr1: 0x00
[9] s_agsize: 0x00010000 [23] s_logpxd.addr2: 0x0046af34
[10] s_flag: 0x10200900 s_logpxd.address: 4632372
LINUX [24] s_fsckpxd.len: 193
GROUPCOMMIT [25] s_fsckpxd.addr1: 0x00
INLINELOG [26] s_fsckpxd.addr2:
0x0046ae73
s_fsckpxd.address: 4632179
[11] s_state: 0x00000000 [27] s_fsckloglen: 50
CLEAN [28] s_fscklog: 2
[12] s_compress: 0 [29] s_fpack: ' '
[13] s_ait2.len: 4
[14] s_ait2.addr1: 0x00
[15] s_ait2.addr2: 0x0000024d
s_ait2.address: 589
display_super2: [m]odify or e[x]it:
> i 2
Inode 2 at block 593, offset 0x400:
[1] di_inostamp: 0x40ca0361 [19] di_mtime.tv_nsec: 0x0681ed10
[2] di_fileset: 16 [20] di_otime.tv_sec: 0x40ca0361
[3] di_number: 2 [21] di_otime.tv_nsec: 0x00000000
[4] di_gen: 1 [22] di_acl.flag: 0x00
[5] di_ixpxd.len: 4 [23] di_acl.rsrvd: Not Displayed
[6] di_ixpxd.addr1: 0x00 [24] di_acl.size: 0x00000000
[7] di_ixpxd.addr2: 0x00000251 [25] di_acl.len: 0
di_ixpxd.address: 593 [26] di_acl.addr1: 0x00
[8] di_size: 0x0000000000001000 [27] di_acl.addr2: 0x00000000
[9] di_nblocks: 0x0000000000000002 di_acl.address: 0
[10] di_nlink: 23 [28] di_ea.flag: 0x00
[11] di_uid: 0 [29] di_ea.rsrvd: Not Displayed
[12] di_gid: 0 [30] di_ea.size: 0x00000000
[13] di_mode: 0x000141ed [31] di_ea.len: 0
0040755 drwx [32] di_ea.addr1: 0x00
[14] di_atime.tv_sec: 0x40fa5548 [33] di_ea.addr2: 0x00000000
[15] di_atime.tv_nsec: 0x26b2bd30 di_ea.address: 0
[16] di_ctime.tv_sec: 0x40fa5549 [34] di_next_index: 32
[17] di_ctime.tv_nsec: 0x0681ed10 [35] di_acltype: 0x00000000
[18] di_mtime.tv_sec: 0x40fa5549
change_inode: [m]odify or e[x]it
> dir 2
idotdot = 2
8223 bin
4096 boot
4 cdrom
233568 cdrom0
8225 dev
233507 empress
4128 etc
8228 home
55232 initrd
5 initrd.img
8229 lib
4160 media
8230 mnt
55136 opt
8231 proc
8232 root
233508 samba
8233 sbin
55104 srv
24719 sys
8234 tmp
8192 usr
4099 var
6 vmlinuz
> dm
Block allocation map control page at block 16
[1] dn_mapsize: 0x0000046ae73 [9] dn_agheigth: 1
[2] dn_nfree: 0x00000438fdc [10] dn_agwidth: 2
[3] dn_l2nbperpage: 0 [11] dn_agstart: 85
[4] dn_numag: 71 [12] dn_agl2size: 16
[5] dn_maxlevel: 0 [13] dn_agfree: type 'f'
[6] dn_maxag: 69 [14] dn_agsize: 65536
[7] dn_agpref: 57 [15] pad: Not Displayed
[8] dn_aglevel: 0
display_dbmap: [m]odify, [f]ree count, [t]ree, e[x]it
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