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

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to enable and use -proposed. Thank you!

** Tags added: verification-needed-yakkety

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  POWER9: Additional patches for 17.04 and 16.04.2

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Fix Released

Bug description:
  Hello  Canonical,

  These are additional patches we need to be included into Ubuntu in
  order to allow it to support POWER9:

    38e69b52b powerpc/mm/radix: Skip ptesync in pte update helpers

    f4894b80b1 powerpc/mm/radix: Use ptep_get_and_clear_full when
  clearing pte for full mm

    ca94573b9c powerpc/mm/radix: Update pte update sequence for pte
  clear case

    18061c17c8 powerpc/mm: Update PROTFAULT handling in the page fault

  Additionally, we would like to include the following patch:

  All these patches are still on powerpc-next, and apply cleanly on
  ubuntu-zesty, as I my tree shows[1]


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