[Bug 530060] [NEW] Buffer I/O error on device sr0 Logical Block in Karmic Koala 9.10 64 bit server with RAID

[g.random]

Public bug reported:

As described in the very related bug 266951 there are - spurious? - errors about device sr0. 
This happens is in the current released 9.10 server 64bit release with no patches and little other than a lot of packages installed.

Circumstances: I just tried to install X/kde - which seems to fail due
with X but that is an other problem.

#uname -a
Linux quadratur 2.6.31-14-server #48-Ubuntu SMP Fri Oct 16 15:07:34 UTC 2009 x86_64 GNU/Linux

The  log:
Mar  1 13:17:01 quadratur CRON[4886]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Mar  1 13:23:45 quadratur console-kit-daemon[4930]: WARNING: Failed to acquire org.freedesktop.ConsoleKit: Connection ":1.7" is not allowed to own the service "org.freedesktop.ConsoleKit" due to security policies in the configuration file
Mar  1 13:23:45 quadratur console-kit-daemon[4930]: WARNING: Could not acquire name; bailing out
Mar  1 13:26:53 quadratur mdadm[1516]: Rebuild80 event detected on md device /dev/md0
Mar  1 13:39:02 quadratur CRON[7208]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -n 200 -r -0 rm)
Mar  1 13:49:38 quadratur console-kit-daemon[7682]: WARNING: Failed to acquire org.freedesktop.ConsoleKit: Connection ":1.9" is not allowed to own the service "org.freedesktop.ConsoleKit" due to security policies in the configuration file

[...]

Mar  1 12:26:49 quadratur mdadm[1516]: Rebuild40 event detected on md device /dev/md0
Mar  1 14:04:01 quadratur kernel: [ 7698.975907] md: md0: resync done.
Mar  1 14:04:02 quadratur kernel: [ 7699.512976] RAID10 conf printout:
Mar  1 14:04:02 quadratur kernel: [ 7699.512982]  --- wd:4 rd:4
Mar  1 14:04:02 quadratur kernel: [ 7699.512988]  disk 0, wo:0, o:1, dev:sda2
Mar  1 14:04:02 quadratur kernel: [ 7699.512993]  disk 1, wo:0, o:1, dev:sdb2
Mar  1 14:04:02 quadratur kernel: [ 7699.512997]  disk 2, wo:0, o:1, dev:sdc2
Mar  1 14:04:02 quadratur kernel: [ 7699.513000]  disk 3, wo:0, o:1, dev:sdd2
Mar  1 14:04:02 quadratur mdadm[1516]: RebuildFinished event detected on md device /dev/md0, component device  mismatches found: 326144
Mar  1 14:04:02 quadratur mdadm[1516]: RebuildFinished event detected on md device /dev/md0, component device  mismatches found: 326144
Mar  1 14:09:01 quadratur CRON[8061]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -n 200 -r -0 rm)
Mar  1 14:16:28 quadratur dbus-daemon: Reloaded configuration
Mar  1 14:16:31 quadratur dbus-daemon: Reloaded configuration
Mar  1 14:16:55 quadratur dbus-daemon: Reloaded configuration
Mar  1 14:16:55 quadratur dbus-daemon: Reloaded configuration
Mar  1 14:17:00 quadratur kernel: [ 8476.161505] sr 8:0:0:0: [sr0] Unhandled sense code
Mar  1 14:17:00 quadratur kernel: [ 8476.161510] sr 8:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Mar  1 14:17:00 quadratur kernel: [ 8476.161515] sr 8:0:0:0: [sr0] Sense Key : Medium Error [current] 
Mar  1 14:17:00 quadratur kernel: [ 8476.161521] sr 8:0:0:0: [sr0] Add. Sense: No seek complete
Mar  1 14:17:00 quadratur kernel: [ 8476.161527] end_request: I/O error, dev sr0, sector 1340440
Mar  1 14:17:00 quadratur kernel: [ 8476.161587] Buffer I/O error on device sr0, logical block 167555
Mar  1 14:17:01 quadratur kernel: [ 8477.319545] sr 8:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Mar  1 14:17:01 quadratur kernel: [ 8477.319551] sr 8:0:0:0: [sr0] Sense Key : Illegal Request [current] 
Mar  1 14:17:01 quadratur kernel: [ 8477.319557] sr 8:0:0:0: [sr0] Add. Sense: Illegal mode for this track
Mar  1 14:17:01 quadratur kernel: [ 8477.319564] end_request: I/O error, dev sr0, sector 1340440
Mar  1 14:17:01 quadratur kernel: [ 8477.319624] Buffer I/O error on device sr0, logical block 167555
Mar  1 14:17:01 quadratur CRON[11685]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
[...]

Please note that I have a RAID10 configuration with 4 identical disks.
Yes, I used smartmontools on them (short test run) and the result shows
nothing untoward. This system is very new - just set up.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Buffer I/O error on device sr0 Logical Block in Karmic Koala 9.10 64 bit server with RAID
https://bugs.launchpad.net/bugs/530060
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