Confirmed fixed - Deployed latest percona-server-server-5.6 (5.6.21-70.1-698.wheezy) on production canary, replicating from percona-server 5.5. No more crashes.
Confirmed fixed - Deployed latest percona- server- server- 5.6 (5.6.21- 70.1-698. wheezy) on production canary, replicating from percona-server 5.5. No more crashes.