** Changed in: linux (Ubuntu Bionic)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1797587

Title:
  Intel NVMe drives timeout when nvme format is attempted

Status in The Dell-poweredge project:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  == SRU Justification ==
  Dell reports that every time they run a nvme format on an Intel
  NVMe drive (whether specifying the secure/crypto erase options or not), the
  format apparently works (drive is wiped clean). The drive's admin queue
  (queue 0) times out, making the nvme device driver flag an error and reset 
the controller.

  This bug is fixed by commit 62843c2e4226, which is in mainline as of
  v4.17-rc1.

  == Fix ==
  62843c2e4226 ("nvme: Use admin command effects for admin commands")

  == Regression Potential ==
  Low.  Limited to nvme driver.

  == Test Case ==
  A test kernel was built with this patch and tested by the original bug 
reporter.
  The bug reporter states the test kernel resolved the bug.



  Every time you run an nvme format on a Intel NVMe drive (whether
  specifying the secure/crypto erase options or not), the format
  apparently works (drive is wiped clean) but the drive's admin queue
  (queue 0) times out, making the nvme device driver flag an error and
  reset the controller.

  Here's an example:

  nvme-cli-1.5 # ./nvme format -l 0 /dev/nvme1
  NVME Admin command error:ABORT_REQ(7)
  nvme-cli-1.5 # dmesg|tail -1
  [79725.404910] nvme nvme1: I/O 151 QID 0 timeout, reset controller

  Patch required:
  
https://github.com/torvalds/linux/commit/62843c2e4226057c83f520c74fe9c81a1891c331

  Request you to include the patch for LTS kernel 4.15 of Ubuntu 18.04

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