[Bug 1454743] Re: Explicitly disable the VSX instruction for ppc64el

[Mathieu Trudel-Lapierre]

This requires the patch ppc64el-disable-vsx.patch from grub2 in utopic:
http://bazaar.launchpad.net/~ubuntu-
branches/ubuntu/utopic/grub2/utopic/view/head:/debian/patches/ppc64el-
disable-vsx.patch

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https://bugs.launchpad.net/bugs/1454743

Title:
  Explicitly disable the VSX instruction for ppc64el

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2 source package in Trusty:
  In Progress

Bug description:
  [Impact]
  POWER7/POWER8 systems which have the VSX bit enabled by default may find themselves crashing with 'instruction exception' errors when booting.

  [Test case]
  - Install grub
  - Boot the system

  [Regression Potential]
  VSX being disabled means another piece of software down the stack needs to re-enable it when necessary. This should be done by the kernel.

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