[Bug 1570093] Re: multipath-tools update introduced syslog messages about partx

[Rafael David Tinoco]

Hello Matt,

Are there any other error messages available when this happens ?

I'm looking specifically for Illegal SCSI requests similar to this one:

[ 1923.361604] sd 7:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 
[ 1923.361621] sd 7:0:0:0: [sdb] tag#0 Sense Key : Illegal Request [current] 
[ 1923.361628] sd 7:0:0:0: [sdb] tag#0 Add. Sense: Invalid field in cdb 
[ 1923.361635] sd 7:0:0:0: [sdb] tag#0 CDB: Write same(16) 93 08 00 00 00 00 00 00 29 10 00 00 0f f8 00 00 
[ 1923.361641] blk_update_request: critical target error, dev sdb, sector 10512 
[ 1923.362078] blk_update_request: critical target error, dev dm-2, sector 10512 
[ 1923.363433] blk_cloned_rq_check_limits: over max size limit.

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https://bugs.launchpad.net/bugs/1570093

Title:
  multipath-tools update introduced syslog messages about partx

Status in multipath-tools package in Ubuntu:
  Confirmed

Bug description:
  During a path loss event, the syslog is showing these messages where
  prior to the recent upgrade to multipath-tools I didn't see anything
  like this.  To me this seems like either a problem or it seems like a
  print message that should go into a different log file.

  Apr 13 11:21:00 ICTM1618S01H4 systemd-udevd[14861]: Process '/usr/bin/partx -d --nr 1-1024 /dev/sdam' failed with exit code 1.
  ...
  Apr 13 11:21:00 ICTM1618S01H4 multipath: dm-15: failed to get udev uid: Invalid argument
  Apr 13 11:21:00 ICTM1618S01H4 multipath: dm-15: failed to get sysfs uid: Invalid argument
  Apr 13 11:21:00 ICTM1618S01H4 multipath: dm-15: failed to get sgio uid: No such file or directory

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: multipath-tools 0.5.0+git1.656f8865-5ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  Date: Wed Apr 13 15:29:36 2016
  SourcePackage: multipath-tools
  UpgradeStatus: No upgrade log present (probably fresh install)

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