Feb 09 16:22:56  mysqld[23505]: 170209 16:22:56 [ERROR] mysqld got signal 11 ;

Feb 09 16:22:56  mysqld[23505]: This could be because you hit a bug. It is also possible that this binary

Feb 09 16:22:56  mysqld[23505]: or one of the libraries it was linked against is corrupt, improperly built,

Feb 09 16:22:56  mysqld[23505]: or misconfigured. This error can also be caused by malfunctioning hardware.

Feb 09 16:22:56  mysqld[23505]: To report this bug, see https://mariadb.com/kb/en/reporting-bugs

Feb 09 16:22:56  mysqld[23505]: We will try our best to scrape up some info that will hopefully help

Feb 09 16:22:56  mysqld[23505]: diagnose the problem, but since we have already crashed,

Feb 09 16:22:56  mysqld[23505]: something is definitely wrong and this may fail.

Feb 09 16:22:56  mysqld[23505]: Server version: 10.1.20-MariaDB

Feb 09 16:22:56  mysqld[23505]: key_buffer_size=16777216

Feb 09 16:22:56  mysqld[23505]: read_buffer_size=262144

Feb 09 16:22:56  mysqld[23505]: max_used_connections=3

Feb 09 16:22:56  mysqld[23505]: max_threads=153

Feb 09 16:22:56  mysqld[23505]: thread_count=3

Feb 09 16:22:56  mysqld[23505]: It is possible that mysqld could use up to

Feb 09 16:22:56  mysqld[23505]: key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 137009 K  bytes of memory

Feb 09 16:22:56  mysqld[23505]: Hope that's ok; if not, decrease some variables in the equation.

Feb 09 16:22:56  mysqld[23505]: Thread pointer: 0x0x7fe2883bbf08

Feb 09 16:22:56  mysqld[23505]: Attempting backtrace. You can use the following information to find out

Feb 09 16:22:56  mysqld[23505]: where mysqld died. If you see no messages after this, something went

Feb 09 16:22:56  mysqld[23505]: terribly wrong...

Feb 09 16:22:56  mysqld[23505]: stack_bottom = 0x7fe28bcf8178 thread_stack 0x48400

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x55b138341c0e]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(handle_fatal_signal+0x3bd)[0x55b137e7ee7d]

Feb 09 16:22:56  mysqld[23505]: /usr/lib/libpthread.so.0(+0x11080)[0x7fe289e19080]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN4JOIN4execEv+0x11)[0x55b137d4dd01]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN30subselect_single_select_engine4execEv+0x8e)[0x55b137f03b2e]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN14Item_subselect4execEv+0x3c)[0x55b137f036ac]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN21Item_exists_subselect8val_boolEv+0x31)[0x55b137f03431]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN20sp_instr_jump_if_not9exec_coreEP3THDPj+0x2a)[0x55b137f7fbfa]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN13sp_lex_keeper23reset_lex_and_exec_coreEP3THDPjbP8sp_instr+0x30a)[0x55b137f84d8a]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN7sp_head7executeEP3THDb+0x75e)[0x55b137f80fee]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_ZN7sp_head17execute_procedureEP3THDP4ListI4ItemE+0x712)[0x55b137f82792]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x2e72)[0x55b137cf2e02]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x321)[0x55b137cf9341]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x242c)[0x55b137cfc69c]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_Z10do_commandP3THD+0x194)[0x55b137cfcde4]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x1d2)[0x55b137dc62c2]

Feb 09 16:22:56  mysqld[23505]: /usr/sbin/mysqld(handle_one_connection+0x40)[0x55b137dc6430]

Feb 09 16:22:56  mysqld[23505]: /usr/lib/libpthread.so.0(+0x7454)[0x7fe289e0f454]

Feb 09 16:22:56  mysqld[23505]: /usr/lib/libc.so.6(clone+0x5f)[0x7fe2894c67df]

Feb 09 16:22:56  mysqld[23505]: Trying to get some variables.

Feb 09 16:22:59  systemd[1]: mariadb.service: Main process exited, code=killed, status=11/SEGV

Feb 09 16:22:59  systemd[1]: mariadb.service: Unit entered failed state.

Feb 09 16:22:59  systemd[1]: mariadb.service: Failed with result 'signal'.