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-
artful' to 'verification-done-artful'. If the problem still exists,
change the tag 'verification-needed-artful' to 'verification-failed-

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 for documentation how
to enable and use -proposed. Thank you!

** Tags added: verification-needed-artful

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  Falkor erratum 1041 needs workaround

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Zesty:
  Won't Fix
Status in linux source package in Artful:
  Fix Committed

Bug description:
  A hardware issue can lead to a kernel crash or unexpected behavior.

  [Test Case]
  The issue presents itself most commonly as a boot-time crash. It doesn't 
effect all Falkor CPUs, and only rarely occurs on CPUs that are effected.

  [Regression Risk]
  The fix is entirely in arm64 code, mitigating the risk to other 
architectures. The biggest regression risk is performance, as the workaround 
involves adding an instruction barrier prior to disabling the MMU.

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