kernel-packages team mailing list archive

[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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-
wily' to 'verification-done-wily'.

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
to enable and use -proposed. Thank you!


** Tags added: verification-needed-wily

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1545542

Title:
  Enable arm64 emulation of removed ARMv7 instructions

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Wily:
  Fix Committed
Status in linux source package in Xenial:
  Fix Released

Bug description:
  Linux now supports emulation of three deprecated ARMv7 features that
  were removed from ARMv8: SWP(B), CP15ISB/DSB/DMB, and SETEND. At least
  CP15DMB is used by some armhf archive binaries (notably pandoc), so we
  need emulation enabled on the kernels that scalingstack uses.

  I haven't checked which version added which, but they appeared some
  time between 3.13 and 4.2, and I only care about 4.2 onwards. So
  please enable ARMV8_DEPRECATED, SWP_EMULATION, CP15_BARRIER_EMULATION
  and SETEND_EMULATION in arm64 kernels for wily onwards.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1545542/+subscriptions