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Help on ext3 file system corruption issue



Hi All,

  I m a novice developer of Linux applications. Recently I faced a file system corruption. (I guess)

I have a Kernel 2.4.7-10 with ext3 file system in compact flash. The system was up for 3 months and was running with average load conditions.

One fine day, it just started sending kernel messages on the serial console. The message was like this.

 

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unab

le to read inode block - inode=20089, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20090, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20091, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20092, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20093, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20094, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20095, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20096, block=81926

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20097, block=81927

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20098, block=81927

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20099, block=81927

Assertion failure in do_get_write_access() at transaction.c:606: "!(((jh2bh(jh))

->b_state & (1UL << BH_Lock)) != 0)"

invalid operand: 0000

CPU:    0

EIP:    0010:[<d080e9e5>]

EFLAGS: 00010286

eax: 00000021   ebx: c171ce94   ecx: 00000001   edx: 0015991c

esi: c171ce00   edi: c788cdc0   ebp: cb5f4690   esp: cf581bf0

ds: 0018   es: 0018   ss: 0018

Process syslogd (pid: 608, stackpage=cf581000)

Stack: d0816990 0000025e 00000000 00000000 c171ce00 cf641820 c171ce94 c171ce00

       c788cdc0 cb5f4690 d080edb5 c788cdc0 cb5f4690 00000000 00000000 000001ae

       cfc86400 cfa670e0 d081a0cb c788cdc0 cfa67140 cf581c60 c1448088 cfa66800

Call Trace: [<d0816990>] [<d080edb5>] [<d081a0cb>] [<c018526c>] [<d081c049>]

   [<d081c33d>] [<d081c1d0>] [<d081c990>] [<d080f3de>] [<d081ec95>] [<d081ed1a>]

 

   [<d081caac>] [<c0133283>] [<d0813ebb>] [<d080e276>] [<c01339cd>] [<d081ca48>]

 

   [<d081cfa6>] [<d081ca48>] [<c01265c8>] [<d081aa7b>] [<c0130ec9>] [<d081aa5c>]

 

   [<d080f777>] [<d081ab0f>] [<c0130fe1>] [<c0106dd3>]

 

Code: 0f 0b 5b 5e 8b 54 24 24 f6 42 10 04 bb e2 ff ff ff b8 01 00

 hda: read_intr: status=0x51 { DriveReady SeekComplete Error }

hda: read_intr: error=0x40 { UncorrectableError }, LBAsect=667854, sector=163854

end_request: I/O error, dev 03:02 (hda), sector 163854

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20100, block=81927

hda: read_intr: status=0x51 { DriveReady SeekComplete Error }

hda: read_intr: error=0x40 { UncorrectableError }, LBAsect=667854, sector=163854

end_request: I/O error, dev 03:02 (hda), sector 163854

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20101, block=81927

hda: read_intr: status=0x51 { DriveReady SeekComplete Error }

hda: read_intr: error=0x40 { UncorrectableError }, LBAsect=667854, sector=163854

end_request: I/O error, dev 03:02 (hda), sector 163854

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20102, block=81927

hda: read_intr: status=0x51 { DriveReady SeekComplete Error }

hda: read_intr: error=0x40 { UncorrectableError }, LBAsect=667854, sector=163854

end_request: I/O error, dev 03:02 (hda), sector 163854

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20103, block=81927

hda: read_intr: status=0x51 { DriveReady SeekComplete Error }

hda: read_intr: error=0x40 { UncorrectableError }, LBAsect=667854, sector=163854

end_request: I/O error, dev 03:02 (hda), sector 163854

EXT3-fs error (device ide0(3,2)): ext3_get_inode_loc: unable to read inode block

 - inode=20104, block=81927

30916

 

Some more information on this system: Wondering if this could have some deep impact on this issue.

  1. LILO boots the 2.4.7-10 kernel image with option ide=nodma. Can this have any impact on these errors?
  2. The system has a postgresql database which writes data to the maximum of 1 record per 5 second. That much data writes will it do.
  3. On restart, the fsck in the bootup scipts (rc.sysinit)  could not resolve this,

It said.

Checking filesystems

Could this be a zero-length partition?

fsck.ext3: Attempt to read block from filesystem resulted in short read while tr

ying to open /dev/hda2

/dev/hda3: recovering journal

/dev/hda3: clean, 81/125488 files, 35684/500472 blocks

Checking all file systems.

[/sbin/fsck.ext3 -- /tmp] fsck.ext3 -a /dev/hda2

[/sbin/fsck.ext3 -- /tmp2] fsck.ext3 -a /dev/hda3

[FAILED]

 

*** An error occurred during the file system check.

*** Dropping you to a shell; the system will reboot

*** when you leave the shell.

Give root password for maintenance

(or type Control-D for normal startup):

 

 

I went ahead and further gave root password and ran the command. e2fsck -a -c -C 0 /dev/hda2

It said:

 

e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/hda2

Could this be a zero-length partition?

 

 

Please give your advice, as this problem has become a big-bang show stopper for our product.

Your advice will be very helpful for me to go ahead with this issue.

 

Thanks in advance,

Arun S

 

 

 


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