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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1486875

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/1486875

Title:
  Udisk related kernel panic upon boot

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I am seeing these lines in the journalctl and my system is behaving
  very weird, slow boot process:

  Aug 20 19:30:58 M1 kernel: INFO: task udisksd:16724 blocked for more than 120 seconds.
  Aug 20 19:30:58 M1 kernel:       Tainted: P           OE  3.19.0-26-generic #28-Ubuntu
  Aug 20 19:30:58 M1 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  Aug 20 19:30:58 M1 kernel: udisksd         D ffff880199a6bac8     0 16724      1 0x00000004
  Aug 20 19:30:58 M1 kernel:  ffff880199a6bac8 ffff8801ab4444b0 0000000000014240 ffff880199a6bfd8
  Aug 20 19:30:58 M1 kernel:  0000000000014240 ffffffff81c1a580 ffff8801ab4444b0 0000000000800000
  Aug 20 19:30:58 M1 kernel:  ffff8801b76b1398 ffff8801b76b139c ffff8801ab4444b0 00000000ffffffff
  Aug 20 19:30:58 M1 kernel: Call Trace:
  Aug 20 19:30:58 M1 kernel:  [<ffffffff817c72d9>] schedule_preempt_disabled+0x29/0x70
  Aug 20 19:30:58 M1 kernel:  [<ffffffff817c9195>] __mutex_lock_slowpath+0x95/0x100
  Aug 20 19:30:58 M1 kernel:  [<ffffffff817c9216>] ? mutex_lock+0x16/0x40
  Aug 20 19:30:58 M1 kernel:  [<ffffffff817c9223>] mutex_lock+0x23/0x40
  Aug 20 19:30:58 M1 kernel:  [<ffffffff8122ef03>] __blkdev_get+0x63/0x490
  Aug 20 19:30:58 M1 kernel:  [<ffffffff8122f371>] blkdev_get+0x41/0x390
  Aug 20 19:30:58 M1 kernel:  [<ffffffff8122f720>] ? blkdev_get_by_dev+0x60/0x60
  Aug 20 19:30:58 M1 kernel:  [<ffffffff8122f77f>] blkdev_open+0x5f/0x90
  Aug 20 19:30:58 M1 kernel:  [<ffffffff811f2392>] do_dentry_open+0x1d2/0x330
  Aug 20 19:30:58 M1 kernel:  [<ffffffff811f2659>] vfs_open+0x49/0x50
  Aug 20 19:30:58 M1 kernel:  [<ffffffff812027c7>] do_last+0x247/0x12c0
  Aug 20 19:30:58 M1 kernel:  [<ffffffff81205830>] path_openat+0x80/0x5f0
  Aug 20 19:30:58 M1 kernel:  [<ffffffff811a822c>] ? tlb_finish_mmu+0x1c/0x50
  Aug 20 19:30:58 M1 kernel:  [<ffffffff81206fba>] do_filp_open+0x3a/0xb0
  Aug 20 19:30:58 M1 kernel:  [<ffffffff81213d47>] ? __alloc_fd+0xa7/0x130
  Aug 20 19:30:58 M1 kernel:  [<ffffffff811f3faa>] do_sys_open+0x12a/0x280
  Aug 20 19:30:58 M1 kernel:  [<ffffffff811f411e>] SyS_open+0x1e/0x20
  Aug 20 19:30:58 M1 kernel:  [<ffffffff817cb70d>] system_call_fastpath+0x16/0x1b
  Aug 20 19:31:18 M1 org.gnome.zeitgeist.SimpleIndexer[16462]: ** (zeitgeist-fts:17025): WARNING **: Unable to get info on application://gnome-terminal-server.desktop
  Aug 20 19:31:20 M1 systemd[1]: udisks2.service still around after final SIGKILL. Entering failed mode.
  Aug 20 19:31:20 M1 systemd[1]: Failed to start Disk Manager.
  Aug 20 19:31:20 M1 systemd[1]: Unit udisks2.service entered failed state.
  Aug 20 19:31:20 M1 systemd[1]: udisks2.service failed.

  
  Any ideas how to fix the above?

  Thanks

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