[Bug 1185394] Re: systemd-udev fails when processing many logical volumes on boot

[Stefan Bader]

I have done about 5 reboots with the updated packages, and I can confirm
the crash on a Xen boot to be gone. Interestingly now the init-bottom is
taking a while as expected (maybe 5s) and all of the LVs on the VG with
the large number of LVs are correctly set up (having the additional
links). Just the other VG seems to be missing completely all the times.

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Title:
  systemd-udev fails when processing many logical volumes on boot

Status in “systemd” package in Ubuntu:
  In Progress

Bug description:
  With recent systemd/udev updates in Saucy I see problems when /dev
  gets moved to the real root. It seems to be related to running
  vgscan/vgchange through watershed by systemd-udevd. The symptoms
  include a crash of one systemd-udevd process and several messages
  about systemd-udevd (or childs of it) not finding files in /dev.

  Setup:

  sda: contains the root fs (no separate /boot) and a swap partition
  sdb: contains vg1 with /home
  sdc and sdd: contain vg2 with 31 LVs, one of them mounted to /home/isos

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