3 __lll_mutex_lock_wait(libpthread.so.0),_L_mutex_lock_1133(libpthread.so.0),pthread_mutex_lock(libpthread.so.0),safe_mutex_lock,open_table,open_tables,open_and_lock_tables,mysql_execute_command,mysql_parse,dispatch_command,handle_one_connection,start_thread(libpthread.so.0),clone(libc.so.6)