[Bug 1240049] Re: multipath udev rules problem

Guy Rozendorn guy.rozendorn at gmail.com
Mon Aug 11 22:13:22 UTC 2014


multipathd does not act upon udev changes -- its very easy to see when
running udev monitor and multipathd -v9 -d and then attaching new disks.

by the looks of it, support for monitoring events by libudev was only added in 2013, far later than 0.4.9
everything seems to exist in 0.5, and none of it was merged to Ubuntu, yet.

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https://bugs.launchpad.net/bugs/1240049

Title:
  multipath udev rules problem

Status in “multipath-tools” package in Ubuntu:
  Fix Released
Status in “multipath-tools” source package in Trusty:
  In Progress

Bug description:
  [SRU justification]

  [Impact]

  From saucy dist.

  libudev0  > 178
  udev      > 178

  multipath-tools               0.4.9-3ubuntu7
  multipath-tools-boot          0.4.9-3ubuntu7

  in dmesg i see folowing messages

  [   20.841480] systemd-udevd[4972]: failed to execute '/lib/udev/socket:/org/kernel/dm/multipath_event' 'socket:/org/kernel/dm/multipath_event': No such file or directory
  [   20.842117] systemd-udevd[4977]: failed to execute '/lib/udev/socket:/org/kernel/dm/multipath_event' 'socket:/org/kernel/dm/multipath_event': No such file or directory
  [   20.844770] systemd-udevd[4995]: failed to execute '/lib/udev/socket:/org/kernel/dm/multipath_event' 'socket:/org/kernel/dm/multipath_event': No such file or directory

  RUN += "socket:// " line deprecated after udev 178

  http://upstream-tracker.org/changelogs/libudev/178/changelog.html

  [Test Case]

  sudo apt-get install multipath-tools
  sudo touch /etc/multipath.conf or touch /etc/multipath/multipath.conf
  sudo udevadm trigger

  sudo dmesg

  [Regression Potential]

  [Other Info]

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