[Bug 801853] Re: high cpu loads on using security enabled USB drives

[Herbert Thielen]

I've seen a similar bug report: could be duplicate to Bug #780266

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Title:
  high cpu loads on using security enabled USB drives

Status in “udev” package in Ubuntu:
  New

Bug description:
  I have a JetFlash 620 8Gb Transcend drive. Whenever i insert it, the
  cpu load gets very high. This problem persists in 10.10 and 11.04, but
  it does not affect 10.04.

  udiscs --monitor gives the following
  added:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  added:     /org/freedesktop/UDisks/devices/sdd
  changed:     /org/freedesktop/UDisks/devices/sr0
  added:     /org/freedesktop/UDisks/devices/sde
  changed:     /org/freedesktop/UDisks/devices/sr0
  added:     /org/freedesktop/UDisks/devices/sdd1
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  job-changed: /org/freedesktop/UDisks/devices/sdd1
  changed:     /org/freedesktop/UDisks/devices/sdd1
  job-changed: /org/freedesktop/UDisks/devices/sdd1
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  changed:     /org/freedesktop/UDisks/devices/sr0
  ..etc

  where sdd is the user data partition, sr0 is a non-writeable partition
  holding the security software.

  Workaround: "sudo stop udev" lowers the CPU load. Seems to work fine
  after that, but surely not an elegant move .

  Additional info:
  udisks version 1.0.2-4ubuntu1
  udev version 167-0ubuntu3

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