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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Also, in bug 1445195 we were talking about reliability issues when that
bug was focused on performance improvements.  So we will use this bug to
focus on the reliability issues, which may or may not be resolved with
only commit 5db9ff87 "storvsc: Set the SRB flags correctly when no data
transfer is needed"


I'm also looking into bug 1452074 .  Comment 4 in that bug sounds like the reliability issues we are talking about in bug 1445195.  Joshua, should we use bug 1452074 to focus on the reliability issues and use this bug to focus on getting the commit in the description in all the stable releases?

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https://bugs.launchpad.net/bugs/1454758

Title:
  [Hyper-V] storvsc: Set the SRB flags correctly when no data transfer
  is needed

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Precise:
  Triaged
Status in linux source package in Trusty:
  Triaged
Status in linux source package in Utopic:
  Triaged
Status in linux source package in Vivid:
  Triaged
Status in linux source package in Wily:
  Triaged

Bug description:
  The following critical bugfix has been accepted into the upstream
  kernel. It is needed for 15.10, 15.02, 14.10, 14.04 and 14.04 HWE
  (and, by extension, 12.04 and 12.04 HWE). We have seen IHV drivers in
  the field throw errors and time out due to receiving SRB flags set
  when no data transfer is expected.

  storvsc: Set the SRB flags correctly when no data transfer is needed
  Set the SRB flags correctly when there is no data transfer.  Without this
  change some IHV drivers will fail valid commands such as TEST_UNIT_READY.

  Commit
  http://git.kernel.org/cgit/linux/kernel/git/jejb/scsi.git/commit/?id=dc45708ca9988656d706940df5fd102672c5de92

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