This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1523491
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1523491
Title:
kernel stuck in dm_destroy
Status in linux package in Ubuntu:
Incomplete
Bug description:
The problem is incorrect backporting of [1] to the Ubuntu Trusty
kernel [2].
While original patch moves `dm_get_live_table` to the appropriate
section mutex lock the backported code just adds another call to it
under the mutex leaving the original call under spinlock in place.
[1]
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a708cff93f1845b9239bc7d6310aef54e716c6a
[2]
http://kernel.ubuntu.com/git/ubuntu/ubuntu-trusty.git/commit/?id=340f3e9970d6251a549d0c8cf90179b190f15def
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