Re: Deadlock on concurrent remount-ro and mdadm --stop (2.6.37)

From: Harald Braumann
Date: Tue Jan 25 2011 - 19:05:56 EST

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On Tue, Jan 25, 2011 at 08:57:58AM +1000, Neil Brown wrote:
> Thanks for the bug report.
> Extra useful details would include:
> cat /proc/mdstat
> cat /proc/mounts
>
> i.e. what is the exact configuration of the RAID or RAIDs, and where
> are they mounted.

I've included the output of Debian's mdadm bug reporting script (see
below). It should give quite concise information about the
configuration.

I've had one more lockup in the meantime, but again no luck with
sysrq.

Cheers,
harry

--- mdadm.conf
DEVICE partitions
CREATE owner=root group=disk mode=0660 auto=yes
HOMEHOST <system>
MAILADDR root

--- /etc/default/mdadm
INITRDSTART='all'
AUTOSTART=true
AUTOCHECK=false
START_DAEMON=true
VERBOSE=false

--- /proc/mdstat:
Personalities : [raid1] [raid6] [raid5] [raid4]
md126 : active raid5 sda2[0] sdc2[3] sdb2[1]
3905975296 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
bitmap: 1/15 pages [4KB], 65536KB chunk

md127 : active raid1 sda1[0] sdc1[3] sdb1[1]
524276 blocks super 1.0 [3/3] [UUU]

unused devices: <none>

--- /proc/partitions:
major minor #blocks name

8 0 1953514584 sda
8 1 524288 sda1
8 2 1952989272 sda2
8 16 1953514584 sdb
8 17 524288 sdb1
8 18 1952989272 sdb2
8 32 1953514584 sdc
8 33 524288 sdc1
8 34 1952989272 sdc2
9 127 524276 md127
9 126 3905975296 md126
253 0 209715200 dm-0
253 1 2671771648 dm-1
253 2 10485760 dm-2
253 3 2671769600 dm-3
253 4 15728640 dm-4
253 5 20971520 dm-5
253 6 15728640 dm-6
253 7 73400320 dm-7
253 8 2227175424 dm-8
253 9 10485760 dm-9
253 10 10485760 dm-10
253 11 209713152 dm-11

--- LVM physical volumes:
PV VG Fmt Attr PSize PFree
/dev/dm-3 vg_hausfrau lvm2 a- 2,49t 284,00g
/dev/md126 vg_hausfrau_raw lvm2 a- 3,64t 967,03g
--- mount output
/dev/mapper/vg_hausfrau-lv_root on / type ext4 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/md127 on /boot type ext2 (rw)
/dev/mapper/vg_hausfrau-lv_tmp on /tmp type tmpfs (rw,nosuid,nodev)
/dev/mapper/vg_hausfrau-lv_var on /var type ext4 (rw)
/dev/mapper/vg_hausfrau-lv_home on /home type ext4 (rw)
/dev/mapper/vg_hausfrau-lv_vm on /var/local/vm type ext4 (rw)
/dev/mapper/vg_hausfrau-lv_data on /var/local/data type ext4 (rw,noexec,nosuid,nodev)
/dev/mapper/harry_clear on /home/harry type ext4 (rw)
debugfs on /sys/kernel/debug type debugfs (rw)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)

--- initrd.img-2.6.37-hb:
67158 blocks
023a0931613d9e24824d55740ee88705 ./etc/mdadm/mdadm.conf
1625745d98382941a5667e4dc82556b9 ./lib/modules/2.6.37-hb/kernel/drivers/md/dm-mod.ko
0b62f233f29325947911106794e7ea39 ./lib/modules/2.6.37-hb/kernel/drivers/md/dm-crypt.ko
7d4d97a22d69ce89ad74009ffc0d570c ./lib/modules/2.6.37-hb/kernel/drivers/md/dm-snapshot.ko
d4da8c2c4cc16e9e6cb0ad652e30f8cb ./lib/modules/2.6.37-hb/kernel/drivers/md/dm-log.ko
212222bc936bb9141d9632f17cf1a752 ./lib/modules/2.6.37-hb/kernel/drivers/md/dm-region-hash.ko
8818bcd8efc23a8bbc94faf4c3ad29ed ./lib/modules/2.6.37-hb/kernel/drivers/md/dm-mirror.ko
5e1c57581135f9cc003beb1340136c6e ./lib/modules/2.6.37-hb/kernel/drivers/md/md-mod.ko
f660d2194c8ce6ff70e443002bcff391 ./lib/modules/2.6.37-hb/kernel/drivers/md/linear.ko
98f3b725335166f45aedd7222c0e89c8 ./lib/modules/2.6.37-hb/kernel/drivers/md/multipath.ko
fac69440da2c3d53aaa711b00f09179e ./lib/modules/2.6.37-hb/kernel/drivers/md/raid0.ko
48cd65affcb21546c8a06aac0d0d1dcd ./lib/modules/2.6.37-hb/kernel/drivers/md/raid1.ko
e6eb0135620891f2bd788cacee610cb5 ./lib/modules/2.6.37-hb/kernel/drivers/md/raid456.ko
2896a7b96807428ef946bcda25082332 ./lib/modules/2.6.37-hb/kernel/drivers/md/raid10.ko
06a6acbd64ad4e9dafdfb62347bd7f84 ./sbin/mdadm
f4fbd9099399ab08ba9b9f6c71d77595 ./scripts/local-top/mdadm

--- initrd's /conf/conf.d/md:
MD_HOMEHOST='hausfrau'
MD_DEVPAIRS='/dev/md/boot:raid1 /dev/md/system:raid5'
MD_LEVELS='raid1 raid5'
MD_DEVS=all
MD_MODULES='raid1 raid456'

--- /proc/modules:
dm_crypt 10303 2 - Live 0xffffffffa0374000
dm_mod 55459 35 dm_crypt, Live 0xffffffffa035b000
raid456 44324 1 - Live 0xffffffffa0349000
async_raid6_recov 4803 1 raid456, Live 0xffffffffa0342000
async_pq 3263 2 raid456,async_raid6_recov, Live 0xffffffffa033c000
raid6_pq 77179 2 async_raid6_recov,async_pq, Live 0xffffffffa0323000
async_xor 2209 3 raid456,async_raid6_recov,async_pq, Live 0xffffffffa031d000
async_memcpy 1222 2 raid456,async_raid6_recov, Live 0xffffffffa0310000
async_tx 1742 5 raid456,async_raid6_recov,async_pq,async_xor,async_memcpy, Live 0xffffffffa030a000
raid1 18065 1 - Live 0xffffffffa02ff000
md_mod 79679 4 raid456,raid1, Live 0xffffffffa02e0000

--- /var/log/syslog:

--- volume detail:
/dev/sda is not recognised by mdadm.
/dev/sda1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : bc81d9f7:82254925:60de4ee5:0da97039
Name : hausfrau:boot (local to host hausfrau)
Creation Time : Fri Jan 7 21:54:10 2011
Raid Level : raid1
Raid Devices : 3

Avail Dev Size : 1048552 (512.07 MiB 536.86 MB)
Array Size : 1048552 (512.07 MiB 536.86 MB)
Super Offset : 1048560 sectors
State : clean
Device UUID : 930ea19c:d6b8eb82:cc772846:af49ee7a

Update Time : Tue Jan 25 17:44:42 2011
Checksum : b7d3b93a - correct
Events : 60

Device Role : Active device 0
Array State : AAA ('A' == active, '.' == missing)
--
/dev/sda2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 0a2ef562:31107259:8fe9b719:29d2266f
Name : hausfrau:system (local to host hausfrau)
Creation Time : Fri Jan 7 20:49:46 2011
Raid Level : raid5
Raid Devices : 3

Avail Dev Size : 3905976496 (1862.51 GiB 1999.86 GB)
Array Size : 7811950592 (3725.03 GiB 3999.72 GB)
Used Dev Size : 3905975296 (1862.51 GiB 1999.86 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : b3b81bbe:05a34cd8:42ec5205:69111266

Internal Bitmap : 2 sectors from superblock
Update Time : Wed Jan 26 00:57:09 2011
Checksum : b84a669e - correct
Events : 19604

Layout : left-symmetric
Chunk Size : 512K

Device Role : Active device 0
Array State : AAA ('A' == active, '.' == missing)
--
/dev/sdb is not recognised by mdadm.
/dev/sdb1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : bc81d9f7:82254925:60de4ee5:0da97039
Name : hausfrau:boot (local to host hausfrau)
Creation Time : Fri Jan 7 21:54:10 2011
Raid Level : raid1
Raid Devices : 3

Avail Dev Size : 1048552 (512.07 MiB 536.86 MB)
Array Size : 1048552 (512.07 MiB 536.86 MB)
Super Offset : 1048560 sectors
State : clean
Device UUID : 3f9bb12c:115879ab:e5028915:fc4ec219

Update Time : Tue Jan 25 17:44:42 2011
Checksum : dea67587 - correct
Events : 60

Device Role : Active device 1
Array State : AAA ('A' == active, '.' == missing)
--
/dev/sdb2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 0a2ef562:31107259:8fe9b719:29d2266f
Name : hausfrau:system (local to host hausfrau)
Creation Time : Fri Jan 7 20:49:46 2011
Raid Level : raid5
Raid Devices : 3

Avail Dev Size : 3905976496 (1862.51 GiB 1999.86 GB)
Array Size : 7811950592 (3725.03 GiB 3999.72 GB)
Used Dev Size : 3905975296 (1862.51 GiB 1999.86 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : e4748d6f:cad12a56:1b2a5f3a:5c04ac7d

Internal Bitmap : 2 sectors from superblock
Update Time : Wed Jan 26 00:57:09 2011
Checksum : 34408261 - correct
Events : 19604

Layout : left-symmetric
Chunk Size : 512K

Device Role : Active device 1
Array State : AAA ('A' == active, '.' == missing)
--
/dev/sdc is not recognised by mdadm.
/dev/sdc1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : bc81d9f7:82254925:60de4ee5:0da97039
Name : hausfrau:boot (local to host hausfrau)
Creation Time : Fri Jan 7 21:54:10 2011
Raid Level : raid1
Raid Devices : 3

Avail Dev Size : 1048552 (512.07 MiB 536.86 MB)
Array Size : 1048552 (512.07 MiB 536.86 MB)
Super Offset : 1048560 sectors
State : clean
Device UUID : 61cec5d6:be8928bb:23d23c1d:a8d2c1a8

Update Time : Tue Jan 25 17:44:42 2011
Checksum : 2f1d2d44 - correct
Events : 60

Device Role : Active device 2
Array State : AAA ('A' == active, '.' == missing)
--
/dev/sdc2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 0a2ef562:31107259:8fe9b719:29d2266f
Name : hausfrau:system (local to host hausfrau)
Creation Time : Fri Jan 7 20:49:46 2011
Raid Level : raid5
Raid Devices : 3

Avail Dev Size : 3905976496 (1862.51 GiB 1999.86 GB)
Array Size : 7811950592 (3725.03 GiB 3999.72 GB)
Used Dev Size : 3905975296 (1862.51 GiB 1999.86 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : 174c216f:4016b4a5:1aa93f50:b74cbbdd

Internal Bitmap : 2 sectors from superblock
Update Time : Wed Jan 26 00:57:09 2011
Checksum : f94d6566 - correct
Events : 19604

Layout : left-symmetric
Chunk Size : 512K

Device Role : Active device 2
Array State : AAA ('A' == active, '.' == missing)
--

--- /proc/cmdline
BOOT_IMAGE=/vmlinuz-2.6.37-hb root=/dev/mapper/vg_hausfrau-lv_root ro resume=/dev/vg_hausfrau/lv_swap no_console_suspend resume=/dev/vg_hausfrau/lv_swap no_console_suspend

--- grub2:
insmod raid
set root='(md/boot)'
insmod raid
set root='(md/boot)'
insmod raid
set root='(md/boot)'
linux /vmlinuz-2.6.37-hb root=/dev/mapper/vg_hausfrau-lv_root ro resume=/dev/vg_hausfrau/lv_swap no_console_suspend resume=/dev/vg_hausfrau/lv_swap no_console_suspend
insmod raid
set root='(md/boot)'
linux /vmlinuz-2.6.37-hb root=/dev/mapper/vg_hausfrau-lv_root ro single resume=/dev/vg_hausfrau/lv_swap no_console_suspend
insmod raid
set root='(md/boot)'
insmod raid
set root='(md/boot)'
insmod raid
set root='(md/boot)'
insmod raid
set root='(md/boot)'

--- udev:
ii udev 164-3 /dev/ and hotplug management daemon
4a574fcd059040d33ea18a8aa605a184 /lib/udev/rules.d/64-md-raid.rules

--- /dev:
brw-rw---- 1 root disk 9, 126 2011-01-25 17:44 /dev/md126
brw-rw---- 1 root disk 9, 127 2011-01-25 17:44 /dev/md127

/dev/disk/by-id:
total 0
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3098999 -> ../../sda
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3098999-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3098999-part2 -> ../../sda2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3122350 -> ../../sdc
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3122350-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3122350-part2 -> ../../sdc2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3177709 -> ../../sdb
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3177709-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 ata-WDC_WD20EARS-00MVWB0_WD-WMAZA3177709-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 dm-name-harry_clear -> ../../dm-11
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-hausfrau_clear -> ../../dm-3
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau-lv_data -> ../../dm-8
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 dm-name-vg_hausfrau-lv_home -> ../../dm-10
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau-lv_root -> ../../dm-5
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau-lv_swap -> ../../dm-4
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau-lv_tmp -> ../../dm-9
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau-lv_var -> ../../dm-6
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau-lv_vm -> ../../dm-7
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau_raw-lv_harry_crypt -> ../../dm-0
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau_raw-lv_hausfrau_crypt -> ../../dm-1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-name-vg_hausfrau_raw-lv_test -> ../../dm-2
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-CRYPT-LUKS1-4f2f3ddfd8294b4da748aee417c1da00-hausfrau_clear -> ../../dm-3
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 dm-uuid-CRYPT-LUKS1-c19136db409b494ea89931e4e6f9863e-harry_clear_unformatted -> ../../dm-11
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-62OpijodUQGb53MakeIg5G90M1zLCHBw4OCsdRMNd52Soy2tSNHlgAJqBql4xO3o -> ../../dm-5
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 dm-uuid-LVM-62OpijodUQGb53MakeIg5G90M1zLCHBwCNUqbZLco9chBTCleNEYAn1sHwdbRDIQ -> ../../dm-10
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-62OpijodUQGb53MakeIg5G90M1zLCHBwMgvTJ115C6k3xN5D02mqXng0vmuPwex9 -> ../../dm-6
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-62OpijodUQGb53MakeIg5G90M1zLCHBwqJtDR3l5Jd5WneucyD9aLcJFB9T8grWy -> ../../dm-9
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-62OpijodUQGb53MakeIg5G90M1zLCHBwTtquQHFbdJCg5THe23ckYT5x5q4jcSJr -> ../../dm-8
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-62OpijodUQGb53MakeIg5G90M1zLCHBwus1RoWZ80dQpKwh736k1r2Ymsz0H0b7B -> ../../dm-7
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-62OpijodUQGb53MakeIg5G90M1zLCHBwYvneUOpYDdxLuF5uO9t9cDp73y8q2Rmd -> ../../dm-4
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-jeEt9SF7ZoVppf1beEckaa7fWWn7qqTj37bSE81k7aSDnlWAesRWN7EE3dDbfVY8 -> ../../dm-1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-jeEt9SF7ZoVppf1beEckaa7fWWn7qqTjbV9VpcTtuIo85wxQMNA0R8S5W3jDJ17u -> ../../dm-0
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 dm-uuid-LVM-jeEt9SF7ZoVppf1beEckaa7fWWn7qqTjLrKJjy1vmBuimJUUidjw3LJCPbcZOTXp -> ../../dm-2
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 md-name-hausfrau:boot -> ../../md127
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 md-name-hausfrau:system -> ../../md126
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 md-uuid-0a2ef562:31107259:8fe9b719:29d2266f -> ../../md126
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 md-uuid-bc81d9f7:82254925:60de4ee5:0da97039 -> ../../md127
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3098999 -> ../../sda
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3098999-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3098999-part2 -> ../../sda2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3122350 -> ../../sdc
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3122350-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3122350-part2 -> ../../sdc2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3177709 -> ../../sdb
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3177709-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 scsi-SATA_WDC_WD20EARS-00_WD-WMAZA3177709-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 wwn-0x50014ee6ab6758c9 -> ../../sdb
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 wwn-0x50014ee6ab6758c9-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 wwn-0x50014ee6ab6758c9-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 wwn-0x50014ee6ab67669b -> ../../sda
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 wwn-0x50014ee6ab67669b-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 wwn-0x50014ee6ab67669b-part2 -> ../../sda2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 wwn-0x50014ee6ab67670d -> ../../sdc
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 wwn-0x50014ee6ab67670d-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 wwn-0x50014ee6ab67670d-part2 -> ../../sdc2

/dev/disk/by-label:
total 0
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 SYSBOOT -> ../../md127

/dev/disk/by-path:
total 0
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 pci-0000:00:12.0-scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 pci-0000:00:12.0-scsi-0:0:0:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 pci-0000:00:12.0-scsi-0:0:0:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 pci-0000:00:12.0-scsi-1:0:0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 pci-0000:00:12.0-scsi-1:0:0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 pci-0000:00:12.0-scsi-1:0:0:0-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 9 2011-01-25 17:44 pci-0000:00:12.0-scsi-2:0:0:0 -> ../../sdc
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 pci-0000:00:12.0-scsi-2:0:0:0-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 pci-0000:00:12.0-scsi-2:0:0:0-part2 -> ../../sdc2

/dev/disk/by-uuid:
total 0
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 09629552-71db-466a-b54b-a88181dd4e96 -> ../../dm-10
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 323c78aa-3be8-4a90-8caf-7be64e819f66 -> ../../md127
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 4f2f3ddf-d829-4b4d-a748-aee417c1da00 -> ../../dm-1
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 533bbed6-61f7-4c5b-b3f2-c9bfe93bc979 -> ../../dm-5
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 588ea9fe-c73f-414a-b1ee-30c41c929b4d -> ../../dm-8
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 7f597aef-dcd0-49b3-a510-8c29b39c3178 -> ../../dm-9
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 905d6dc6-6800-4f09-8bff-836264a19832 -> ../../dm-2
lrwxrwxrwx 1 root root 11 2011-01-25 17:44 a0d8975b-3c37-4e99-9799-e50c65d797bc -> ../../dm-11
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 a5de564c-90d4-450a-9153-36738806cc4c -> ../../dm-6
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 b7aadd8a-ea5c-4cc2-88f2-ca86a01f757f -> ../../dm-4
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 bb1392bc-d5a3-486f-919f-b351f233dbc1 -> ../../dm-7
lrwxrwxrwx 1 root root 10 2011-01-25 17:44 c19136db-409b-494e-a899-31e4e6f9863e -> ../../dm-0

/dev/md:
total 0
lrwxrwxrwx 1 root root 8 2011-01-25 17:44 boot -> ../md127
lrwxrwxrwx 1 root root 8 2011-01-25 17:44 system -> ../md126

Auto-generated on Wed, 26 Jan 2011 00:57:09 +0100
by mdadm bugscript 3.1.4-1+8efb9d1
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