[Bug 211713] NVME controller failure: resetting (Samsung SM961 SSD Drives)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211713

--- Comment #84 from commit-hook at freebsd.org ---
A commit references this bug:

Author: imp
Date: Thu Sep  5 23:54:45 UTC 2019
New revision: 351915
URL: https://svnweb.freebsd.org/changeset/base/351915

Log:
  MFC r349845:

    Work around devices which return all zeros for reads of existing MSI-X
table
    VCTRL registers.

  Note: This is confirmed to fix the nvme lost interrupt issues, seen on both
  virtual and real cards.
  PR: 211713

Changes:
_U  stable/12/
  stable/12/sys/dev/pci/pci.c

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