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[Andy Whitcroft <apw@xxxxxxxxxxxxx>]

This bug was nominated against a series that is no longer supported, ie
yakkety.  The bug task representing the yakkety nomination is being
closed as Won't Fix.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu Yakkety)
       Status: In Progress => Won't Fix

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https://bugs.launchpad.net/bugs/1689946

Title:
  Ubuntu16.04: NVMe 4K+T10 DIF/DIX format returns I/O error on dd with
  split op

Status in The Ubuntu-power-systems project:
  In Progress
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Xenial:
  In Progress
Status in linux source package in Yakkety:
  Won't Fix
Status in linux source package in Zesty:
  In Progress
Status in linux source package in Artful:
  Fix Committed

Bug description:
  ==== State: Open by: mdate on 19 March 2017 12:33:34 ====

  On a Bolt adapter in a system with Ubuntu 16.04, I've formatted the
  Bolt for T10 and am using it to do a dd with a 2M block size.

  Here are the commands:
  nvme format /dev/nvme0n1 --lbaf=1 --pil=0 --ms=0 --pi=2

  dd if=/dev/urandom of=/dev/nvme0n1 bs=2M oflag=direct count=1

  I get an error on the dd.
  	root@x1623bp1:~# dd if=/dev/urandom of=/dev/nvme0n1 bs=2M oflag=direct count=1
  	dd: error writing '/dev/nvme0n1': Input/output error
  	1+0 records in
  	0+0 records out
  	0 bytes copied, 0.0525061 s, 0.0 kB/s

  dmesg shows:
          [589997.985151] blk_update_request: I/O error, dev nvme0n1, sector 0

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