Interesting MariaDB bug report with the same assertion error in !lock(recursive), fixed last month in 5.5.41:
https://mariadb.atlassian.net/browse/MDEV-7148
Worth reviewing that ticket/fix and see if it needs applying in Percona?
Interesting MariaDB bug report with the same assertion error in !lock(recursive), fixed last month in 5.5.41:
https:/ /mariadb. atlassian. net/browse/ MDEV-7148
Worth reviewing that ticket/fix and see if it needs applying in Percona?