Tested with the 4.4.0-62-generic #83 kernel in -proposed and the tests
work fine with no failure.

** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial

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https://bugs.launchpad.net/bugs/1655040

Title:
  i386 ftrace tests hang on ADT testing

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Incomplete

Bug description:
  == SRU REQUEST, XENIAL, YAKKETY + ZESTY ==

  Running the autotest client ubuntu_kernel_selftests tests hang on i386
  because of a bug in the ftracing, resolved with upstream fix:

  commit 847fa1a6d3d00f3bdf68ef5fa4a786f644a0dd67
  ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps 
to it

  Although these have fixes ready to come down into -stable, lets SRU
  these in sooner than later.

  == Test ==

  Without the fix, the i386 kernel self tests always hang on the
  ftracing tests.  With the fix, it works perfectly.

  == Regression potential ==

  Minimal, this is a tried and tested patch, plus it matches the  fixes
  in the amd64 paths that were not ported over to the i386 paths which
  this fix now addresses.

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