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[Bug 1541587] Re: Hang when iSCSI targets are removed


** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Changed in: linux (Ubuntu)
       Status: Incomplete => Triaged

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)

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  Hang when iSCSI targets are removed

Status in linux package in Ubuntu:

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"


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

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