Bug#584145: multipath-tools: udevd-work complains about device name differences

Ferenc Wagner wferi at niif.hu
Tue Jun 1 18:02:29 UTC 2010


Package: multipath-tools
Version: 0.4.8+git0.761c66f-8
Severity: normal

Hi,

After upgrading a system to current unstable, during reboot I got a lot
of warnings like:

udevd-work[161]: kernel-provided name 'dm-0' and NAME= 'mapper/SIBM-ESXSST936701LC____F3LC065GL00007604NMST' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[162]: kernel-provided name 'dm-4' and NAME= 'mapper/pws_www' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[494]: kernel-provided name 'dm-6' and NAME= 'mapper/pws_sql' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[161]: kernel-provided name 'dm-1' and NAME= 'mapper/nfs' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[474]: kernel-provided name 'dm-5' and NAME= 'mapper/360060160f4512000de9d9b74090cdf11' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[161]: kernel-provided name 'dm-7' and NAME= 'mapper/360060160f4512000de9d9b74090cdf11-part1' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[560]: kernel-provided name 'dm-10' and NAME= 'mapper/nfs-part2' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[162]: kernel-provided name 'dm-8' and NAME= 'mapper/360060160f4512000de9d9b74090cdf11-part2' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[494]: kernel-provided name 'dm-9' and NAME= 'mapper/nfs-part1' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[162]: kernel-provided name 'dm-8' and NAME= 'mapper/360060160f4512000de9d9b74090cdf11-part2' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[161]: kernel-provided name 'dm-7' and NAME= 'mapper/360060160f4512000de9d9b74090cdf11-part1' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[161]: kernel-provided name 'dm-11' and NAME= 'mapper/nfs-root' disagree, please use SYMLINK+= or change the kernel to provide the proper name
udevd-work[161]: kernel-provided name 'dm-12' and NAME= 'mapper/nfs-swap' disagree, please use SYMLINK+= or change the kernel to provide the proper name

Part (or all) of this may be out of scope for multipath (eg.
/dev/mapper/nfs-{root,swap} are LVM2 logical volumes), but the
problem is present here as well.  The landscape is quite mixed,
the /dev/dm-[23] links are even broken because of some space vs.
underscore discrepancy:

$ ls -l /dev/mapper
total 0
brw-rw---- 1 root root 254,  5 Jun  1 19:17 360060160f4512000de9d9b74090cdf11
brw-rw---- 1 root disk 254,  7 Jun  1 19:19 360060160f4512000de9d9b74090cdf11-part1
brw-rw---- 1 root disk 254,  8 Jun  1 19:19 360060160f4512000de9d9b74090cdf11-part2
crw-rw---- 1 root root  10, 58 Jun  1 19:19 control
brw-rw---- 1 root root 254,  1 Jun  1 19:17 nfs
brw-rw---- 1 root disk 254, 17 Jun  1 19:19 nfs-export
brw-rw---- 1 root disk 254, 16 Jun  1 19:19 nfs-home
brw-rw---- 1 root disk 254,  9 Jun  1 19:19 nfs-part1
brw-rw---- 1 root disk 254, 10 Jun  1 19:19 nfs-part2
brw-rw---- 1 root root 254, 11 Jun  1 19:17 nfs-root
brw-rw---- 1 root root 254, 12 Jun  1 19:17 nfs-swap
brw-rw---- 1 root disk 254, 13 Jun  1 19:19 nfs-tmp
brw-rw---- 1 root disk 254, 14 Jun  1 19:19 nfs-usr
brw-rw---- 1 root disk 254, 15 Jun  1 19:19 nfs-var
brw-rw---- 1 root root 254,  6 Jun  1 19:17 pws_sql
brw-rw---- 1 root root 254,  4 Jun  1 19:17 pws_www
brw-rw---- 1 root disk 254,  0 Jun  1 19:17 SIBM-ESXSST936701LC    F3LC065GL00007604NMST
brw-rw---- 1 root root 254,  2 Jun  1 19:17 SIBM-ESXSST936701LC    F3LC065GL00007604NMST-part1
brw-rw---- 1 root root 254,  3 Jun  1 19:17 SIBM-ESXSST936701LC    F3LC065GL00007604NMST-part2
brw-rw---- 1 root disk 254, 18 Jun  1 19:19 VG_sql-sql
brw-rw---- 1 root disk 254, 19 Jun  1 19:19 VG_www-www
$ ls -l /dev/dm*
brw-rw---- 1 root disk 254,  0 Jun  1 19:19 /dev/dm-0
brw-rw---- 1 root disk 254,  1 Jun  1 19:19 /dev/dm-1
lrwxrwxrwx 1 root root      16 Jun  1 19:19 /dev/dm-10 -> mapper/nfs-part2
brw-rw---- 1 root disk 254, 11 Jun  1 19:19 /dev/dm-11
brw-rw---- 1 root disk 254, 12 Jun  1 19:19 /dev/dm-12
lrwxrwxrwx 1 root root      14 Jun  1 19:19 /dev/dm-13 -> mapper/nfs-tmp
lrwxrwxrwx 1 root root      14 Jun  1 19:19 /dev/dm-14 -> mapper/nfs-usr
lrwxrwxrwx 1 root root      14 Jun  1 19:19 /dev/dm-15 -> mapper/nfs-var
lrwxrwxrwx 1 root root      15 Jun  1 19:19 /dev/dm-16 -> mapper/nfs-home
lrwxrwxrwx 1 root root      17 Jun  1 19:19 /dev/dm-17 -> mapper/nfs-export
lrwxrwxrwx 1 root root      17 Jun  1 19:19 /dev/dm-18 -> mapper/VG_sql-sql
lrwxrwxrwx 1 root root      17 Jun  1 19:19 /dev/dm-19 -> mapper/VG_www-www
lrwxrwxrwx 1 root root      57 Jun  1 19:19 /dev/dm-2 -> mapper/SIBM-ESXSST936701LC____F3LC065GL00007604NMST-part1
lrwxrwxrwx 1 root root      57 Jun  1 19:19 /dev/dm-3 -> mapper/SIBM-ESXSST936701LC____F3LC065GL00007604NMST-part2
brw-rw---- 1 root disk 254,  4 Jun  1 19:19 /dev/dm-4
brw-rw---- 1 root disk 254,  5 Jun  1 19:19 /dev/dm-5
brw-rw---- 1 root disk 254,  6 Jun  1 19:19 /dev/dm-6
lrwxrwxrwx 1 root root      46 Jun  1 19:19 /dev/dm-7 -> mapper/360060160f4512000de9d9b74090cdf11-part1
lrwxrwxrwx 1 root root      46 Jun  1 19:19 /dev/dm-8 -> mapper/360060160f4512000de9d9b74090cdf11-part2
lrwxrwxrwx 1 root root      16 Jun  1 19:19 /dev/dm-9 -> mapper/nfs-part1

My multipaths:

$ sudo multipath -l
nfs (360060160ec612000f6f237e09406df11) dm-1 DGC,RAID 5
size=5.0G features='1 queue_if_no_path' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=-2 status=active
| |- 3:0:1:0 sdj 8:144 active undef running
| `- 0:0:1:0 sdl 8:176 active undef running
`-+- policy='round-robin 0' prio=-2 status=enabled
  |- 3:0:0:0 sdb 8:16  active undef running
  `- 0:0:0:0 sdc 8:32  active undef running
SIBM-ESXSST936701LC    F3LC065GL00007604NMST dm-0 IBM-ESXS,ST936701LC    FN
size=34G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=-1 status=active
  `- 4:0:0:0 sda 8:0   active undef running
pws_www (360060160ec612000b2582fa24863df11) dm-4 DGC,RAID 5
size=140G features='1 queue_if_no_path' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=-2 status=active
| |- 3:0:0:1 sdd 8:48  active undef running
| `- 0:0:0:1 sdf 8:80  active undef running
`-+- policy='round-robin 0' prio=-2 status=enabled
  |- 3:0:1:1 sdk 8:160 active undef running
  `- 0:0:1:1 sdn 8:208 active undef running
pws_sql (360060160ec61200046717d0cf763df11) dm-6 DGC,RAID 5
size=30G features='1 queue_if_no_path' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=-2 status=active
| |- 3:0:0:3 sdg 8:96  active undef running
| `- 0:0:0:3 sdi 8:128 active undef running
`-+- policy='round-robin 0' prio=-2 status=enabled
  |- 3:0:1:3 sdo 8:224 active undef running
  `- 0:0:1:3 sdq 65:0  active undef running
360060160f4512000de9d9b74090cdf11 dm-5 DGC,RAID 5
size=5.0G features='1 queue_if_no_path' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=-2 status=active
| |- 3:0:1:2 sdm 8:192 active undef running
| `- 0:0:1:2 sdp 8:240 active undef running
`-+- policy='round-robin 0' prio=-2 status=enabled
  |- 3:0:0:2 sde 8:64  active undef running
  `- 0:0:0:2 sdh 8:112 active undef running

Something is wrong or at least transitioning here, I don't see the full
picture.  Basically, the system seems to work (I don't use the local
disk), though.

Thanks,
Feri.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages multipath-tools depends on:
ii  initscripts         2.88dsf-7            scripts for initializing and shutt
ii  kpartx              0.4.8+git0.761c66f-8 create device mappings for partiti
ii  libaio1             0.3.107-7            Linux kernel AIO access library - 
ii  libc6               2.11.1-1             Embedded GNU C Library: Shared lib
ii  libdevmapper1.02.1  2:1.02.47-1          The Linux Kernel Device Mapper use
ii  libncurses5         5.7+20100313-2       shared libraries for terminal hand
ii  libreadline6        6.1-3                GNU readline and history libraries
ii  lsb-base            3.2-23.1             Linux Standard Base 3.2 init scrip
ii  udev                154-1                /dev/ and hotplug management daemo

multipath-tools recommends no packages.

Versions of packages multipath-tools suggests:
ii  multipath-tools-boo 0.4.8+git0.761c66f-8 Support booting from multipath dev

-- no debconf information





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