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[Bug 1656913] Re: NVMe: adapter is missing after abnormal shutdown followed by quick reboot, quirk needed

 

https://lists.ubuntu.com/archives/kernel-team/2017-January/081870.html

** Also affects: linux (Ubuntu Zesty)
   Importance: Undecided
     Assignee: Taco Screen team (taco-screen-team)
       Status: New

** Also affects: linux (Ubuntu Yakkety)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Tim Gardner (timg-tpi)

** Changed in: linux (Ubuntu Yakkety)
       Status: New => In Progress

** Changed in: linux (Ubuntu Yakkety)
     Assignee: (unassigned) => Tim Gardner (timg-tpi)

** Changed in: linux (Ubuntu Zesty)
       Status: New => Fix Released

** Changed in: linux (Ubuntu Zesty)
     Assignee: Taco Screen team (taco-screen-team) => (unassigned)

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https://bugs.launchpad.net/bugs/1656913

Title:
  NVMe: adapter is missing after abnormal shutdown followed by quick
  reboot, quirk needed

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  In Progress
Status in linux source package in Yakkety:
  In Progress
Status in linux source package in Zesty:
  Fix Released

Bug description:
  Canonical, we would like to request the merge of the following patch
  to Xenial (4.4.0-x) and Yakkety (4.8.0-y) kernels if possible.

  b5a10c5f75 ("nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too")
  [https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a10c5]

  This is a very non-intrusive patch, just extending a quirk already
  present - without this patch, after an abnormal shutdown of the
  machine (followed by a quick reboot), the NVMe device from HGST
  becomes unresponsive and we need to force a PCI rescan as workaround,
  a procedure that does not always work.

  Thanks in advance,

  
  Guilherme

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