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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 1541587

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/1541587

Title:
  Hang when iSCSI targets are removed

Status in linux package in Ubuntu:
  Triaged

Bug description:
  There is a problem (Hang) when iSCSI targets are removed in the 4.4.0
  kernel.  The problem looks like it spans from 3.18 to 4.5. There is a
  bug in scsi_scan.c (scsi_mod) and scsi_transport_fc.  Emulex tested a
  fix from Johannes(SUSE) that fixed it in the 4.4.0 kernel but I think
  it is still waiting to get picked up in a stable kernle.  This Hang
  can happen on any devloss and on driver unload.

  There is a patch from Bart van Asche that others reported is needed in
  order to fix this issue. It's called "Separate target visibility from
  reaped state information"

  https://patchwork.kernel.org/patch/7987711/

  This bug was brought to my attention by Dick Kennedy at Emulex (now
  acquired by Avago/Broadcom).

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