Hi, Sergey! On Jun 27, Sergey Vojtovich wrote:

revision-id: 3e61493dff068c86b37f2e2ec0d0b6cbe9a255b6 (mariadb-10.1.14-28-g3e61493) parent(s): 305bbbce6152b0909937659ecba4d51e5b21c094 committer: Sergey Vojtovich timestamp: 2016-06-27 15:01:22 +0400 message:

MDEV-10010 - Recursive call to mysql_rwlock_rdlock for LOCK_system_variables_hash

Avoid recursive LOCK_system_variables_hash acquisition in intern_sys_var_ptr() by pre-syncing dynamic session variables.

Looks good, thanks! Regards, Sergei Chief Architect MariaDB and security@mariadb.org