I have confirmation that this can be worked around by turning off memory
statistics via virsh before the migration.  After migration memory
statistics can be turned back on safely.

The command to turn off memory statistics is
virsh dommemstat --live --period 0 <VM instance name>

The command to turn on memory statistics is
virsh dommemstat --live --period 10 <VM instance name>

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https://bugs.launchpad.net/bugs/1647389

Title:
  Regression: Live migrations can still crash after CVE-2016-5403 fix

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