This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'. If the problem still exists,
change the tag 'verification-needed-trusty' to 'verification-failed-
trusty'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
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** Tags added: verification-needed-trusty

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-aws in Ubuntu.
https://bugs.launchpad.net/bugs/1729119

Title:
  NVMe timeout is too short

Status in linux package in Ubuntu:
  Confirmed
Status in linux-aws package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Committed
Status in linux-aws source package in Trusty:
  New
Status in linux source package in Xenial:
  Fix Committed
Status in linux-aws source package in Xenial:
  Fix Released
Status in linux source package in Zesty:
  Fix Committed
Status in linux-aws source package in Zesty:
  Invalid
Status in linux source package in Artful:
  Fix Committed
Status in linux-aws source package in Artful:
  Invalid

Bug description:
  [SRU Justification]

  [Impact]
  Some NVMe operations time out too quickly. The module parameters allow the 
timeouts to be extended, but only up to 255s, as the counters are bytes.

  [Fix]
  The underlying parameters are unsigned ints, so make the module parameters 
unsigned ints too, by picking patch 
http://lists.infradead.org/pipermail/linux-nvme/2017-September/012701.html

  (Trusty specific) This also requires picking the patch that converts
  the constant into a parameter, which is a clean cherry-pick.

  [Regression Potential]
  (X/Z/A) Very limited: only types of module parameters are changing, the patch 
is easily reviewable.

  (Trusty specific) Limited: a module parameter is added and its type is
  changed. The patches are easily reviewable.

  [Testing]
  (Trusty only) Boot tested on a c5.large instance on AWS which uses
  NVMe to boot. Verified that the system still boots with the patches,
  and that a timeout of 123456s is permitted.

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