high cpu loads on using security enabled USB drives

[Alex]

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

[Alex (icidrop)]

Fix reported using "sudo hal-disable-polling --device /dev/sr0"
here : http://ubuntuforums.org/archive/index.php/t-1478339.html

[Herbert Thielen (thielen)]

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