segfault in mariadb 5.5.50 with galera 25.3.16

segfault during normal operation of mariadb. Right at the bottom of syslog.

I had hit this before so I had turned on the general query log. I've attached the general query log, syslog (with most of the irrelevant stuff, like CRON etc filtered out) and the last binary log from the node that crashed. Let me know if you need more files from the machine. It will liekly be reinstalled in a few days.