Crash on select from information_schema.tables

161226 13:08:52 [ERROR] mysqld got signal 11 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed, 

something is definitely wrong and this may fail.

Server version: 10.1.20-MariaDB

key_buffer_size=268435456

read_buffer_size=1048576

max_used_connections=2

max_threads=2002

thread_count=1

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 4403338 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x7f8ecffe8008

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...

stack_bottom = 0x7fd7e89f6140 thread_stack 0x48400

/usr/sbin/mysqld(my_print_stacktrace+0x2b)[0x7fe1c92c05cb]

/usr/sbin/mysqld(handle_fatal_signal+0x4d5)[0x7fe1c8e19375]

/lib64/libpthread.so.0(+0xf7e0)[0x7fe1c841b7e0]

/usr/sbin/mysqld(_Z21open_table_from_shareP3THDP11TABLE_SHAREPKcjjjP5TABLEb+0xe3d)[0x7fe1c8d48bed]

/usr/sbin/mysqld(_Z10open_tableP3THDP10TABLE_LISTP18Open_table_context+0x2a5)[0x7fe1c8c615f5]

/usr/sbin/mysqld(_Z11open_tablesP3THDRK14DDL_options_stPP10TABLE_LISTPjjP19Prelocking_strategy+0xf12)[0x7fe1c8c65b02]

/usr/sbin/mysqld(_Z30open_normal_and_derived_tablesP3THDP10TABLE_LISTjj+0x59)[0x7fe1c8c65de9]

/usr/sbin/mysqld(+0x4b510e)[0x7fe1c8d0010e]

/usr/sbin/mysqld(_Z14get_all_tablesP3THDP10TABLE_LISTP4Item+0x81e)[0x7fe1c8d1557e]

/usr/sbin/mysqld(_Z24get_schema_tables_resultP4JOIN23enum_schema_table_state+0x28e)[0x7fe1c8d130ce]

/usr/sbin/mysqld(_ZN4JOIN10exec_innerEv+0x6b5)[0x7fe1c8cfad85]

/usr/sbin/mysqld(_ZN4JOIN4execEv+0x5d)[0x7fe1c8cfd19d]

/usr/sbin/mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x12a)[0x7fe1c8cf9b6a]

mysys/stacktrace.c:268(my_print_stacktrace)[0x7fe1c8cfd47d]

sql/signal_handler.cc:168(handle_fatal_signal)[0x7fe1c8c9ce32]

sql/table.cc:2950(open_table_from_share(THD*, TABLE_SHARE*, char const*, unsigned int, unsigned int, unsigned int, TABLE*, bool))[0x7fe1c8ca90fc]

sql/sql_base.cc:2554(open_table(THD*, TABLE_LIST*, Open_table_context*))[0x7fe1c8cac6b4]

sql/sql_show.cc:4183(fill_schema_table_by_open)[0x7fe1c8caf183]

/usr/sbin/mysqld(_Z10do_commandP3THD+0x16b)[0x7fe1c8caf71b]

sql/sql_select.cc:2656(JOIN::exec_inner())[0x7fe1c8d6dfff]

sql/sql_select.cc:3441(mysql_select(THD*, Item***, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x7fe1c8d6e157]

sql/sql_parse.cc:5897(execute_sqlcom_select)[0x7fe1c8413aa1]

/lib64/libc.so.6(clone+0x6d)[0x7fe1c68f7aad]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x7f8ed6028020): is an invalid pointer

Connection ID (thread ID): 22

Status: NOT_KILLED

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=off

The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains

information that should help you find out what is causing the crash.

We think the query pointer is invalid, but we will try to print it anyway. 

Query: select * from information_schema.tables