Package: kernel-image-2.6.8-2-386
Severity: critical
Justification: causes serious data loss
Szenario:
While copying some GBs to the filesystem under heavy load the filesystem
gets corrupted.
The SMART Status of all disks is "passed", they are all new. The hardware
components of the server should work fine too, used this server (cpu,
motherboard, etc) before, just exchanged the harddisks.
Error Message:
Oct 27 23:36:34 localhost kernel: init_special_inode: bogus i_mode (4152)
Oct 27 23:36:34 localhost kernel: init_special_inode: bogus i_mode (117230)
Oct 27 23:36:45 localhost kernel: attempt to access beyond end of device
Oct 27 23:36:45 localhost kernel: dm-0: rw=0, want=20177444552,
limit=962598144
(last 2 lines repeating nonstop)
Versions:
- Unmodified Debian Sarge Kernel 2.6.8-2-386
- Debian Sarge utils last updated 27.10.05
Filesystem Layout:
- ext2 (was ext3, but removed the journal with tune2fs)
on top of
- dmcrypt (aes-plain) /dev/mapper/croot
on top of
- RAID5 /dev/md2
on top of
- 4x 160GB IDE /dev/hd[abcd]3
blacksheep:~# fdisk -l /dev/hd[abcd]
Disk /dev/hda: 164.6 GB, 164696555520 bytes
255 heads, 63 sectors/track, 20023 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 fd Linux raid autodetect
/dev/hda2 14 50 297202+ fd Linux raid autodetect
/dev/hda3 51 20023 160433122+ fd Linux raid autodetect
Disk /dev/hdb: 164.6 GB, 164696555520 bytes
255 heads, 63 sectors/track, 20023 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdb1 * 1 13 104391 fd Linux raid autodetect
/dev/hdb2 14 50 297202+ fd Linux raid autodetect
/dev/hdb3 51 20023 160433122+ fd Linux raid autodetect
Disk /dev/hdc: 164.6 GB, 164696555520 bytes
255 heads, 63 sectors/track, 20023 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 13 104391 fd Linux raid autodetect
/dev/hdc2 14 50 297202+ fd Linux raid autodetect
/dev/hdc3 51 20023 160433122+ fd Linux raid autodetect
Disk /dev/hdd: 164.6 GB, 164696555520 bytes
255 heads, 63 sectors/track, 20023 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdd1 * 1 13 104391 fd Linux raid autodetect
/dev/hdd2 14 50 297202+ fd Linux raid autodetect
/dev/hdd3 51 20023 160433122+ fd Linux raid autodetect
blacksheep:~# cat /proc/mdstat
Personalities : [raid1] [raid5]
md0 : active raid1 hdd1[3] hda1[0] hdc1[2] hdb1[1]
104320 blocks [4/4] [UUUU]
md1 : active raid5 hdd2[3] hda2[0] hdc2[2] hdb2[1]
891264 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
md2 : active raid5 hdd3[4] hda3[0] hdc3[2] hdb3[1]
481299072 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
[====>................] recovery = 20.6% (33203840/160433024)
finish=339.4min speed=6246K/sec
unused devices: <none>
blacksheep:~# dmsetup info croot
Name: croot
State: ACTIVE
Tables present: LIVE
Open count: 1
Event number: 0
Major, minor: 254, 0
Number of targets: 1
blacksheep:~# dmsetup status croot
0 962598144 crypt
blacksheep:~# dmsetup table croot
0 962598144 crypt aes-plain <perhapsthatsmysecretkeyidontknow> 0 9:2 0
blacksheep:~# cat /etc/crypttab
# <target device> <source device> <key file> <options>
cswap /dev/md1 /dev/random swap
croot /dev/md2 none cipher=aes-plain
blacksheep:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
/dev/mapper/cswap none swap sw 0 0
/dev/mapper/croot / ext2 defaults,errors=remount-ro 0 1
/dev/md0 /boot ext3 defaults 0 2
blacksheep:~# uname -a
Linux blacksheep 2.6.8-2-386 #1 Thu May 19 17:40:50 JST 2005 i686 GNU/Linux
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