This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1782209

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Tags added: disco

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  KVM SnowRidge Split-lock disable

Status in linux package in Ubuntu:
Status in qemu package in Ubuntu:

Bug description:
  When bit 29 is set in Test Control MSR register 0x33, a #AC execption
   is generated for split locked accesses at all CPL irrespective of

  This feature can help developers to capture memory accesses that
  across cachelines with #LOCK assertion. Then developers can
  reconstruct their program accordingly

  Upstream target linux 5.2
  Target Release: 19.04

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