150331 14:49:17 [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 http://kb.askmonty.org/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: 10.0.17-MariaDB-debug-log

key_buffer_size=134217728

read_buffer_size=131072

max_used_connections=10

max_threads=153

thread_count=2

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467212 K  bytes of memory

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

Thread pointer: 0x0x314d9c0

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 = 0x7ffd98623e38 thread_stack 0x48000

mysys/stacktrace.c:246(my_print_stacktrace)[0xe52463]

sql/signal_handler.cc:155(handle_fatal_signal)[0x859d2d]

/lib64/libpthread.so.0[0x3aae20f710]

sql/opt_subselect.cc:3294(fix_semijoin_strategies_for_picked_join_order(JOIN*))[0x7cff3b]

sql/sql_select.cc:8446(get_best_combination(JOIN*))[0x6aeb38]

sql/sql_select.cc:4072(make_join_statistics)[0x6a4a07]

sql/sql_select.cc:1339(JOIN::optimize_inner())[0x69acb8]

sql/sql_select.cc:1024(JOIN::optimize())[0x699bc9]

sql/sql_lex.cc:3490(st_select_lex::optimize_unflattened_subqueries(bool))[0x658bf9]

sql/opt_subselect.cc:4950(JOIN::optimize_unflattened_subqueries())[0x7d44cc]

sql/sql_select.cc:1784(JOIN::optimize_inner())[0x69c742]

sql/sql_select.cc:1024(JOIN::optimize())[0x699bc9]

sql/sql_select.cc:3296(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*))[0x6a1b99]

sql/sql_update.cc:1567(mysql_multi_update(THD*, TABLE_LIST*, List<Item>*, List<Item>*, Item*, unsigned long long, enum_duplicates, bool, st_select_lex_unit*, st_select_lex*, multi_update**))[0x732668]

sql/sql_parse.cc:3366(mysql_execute_command(THD*))[0x665ea8]

sql/sql_parse.cc:6517(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x66ea01]

sql/sql_parse.cc:1302(dispatch_command(enum_server_command, THD*, char*, unsigned int))[0x660f9f]

sql/sql_parse.cc:996(do_command(THD*))[0x6602d5]

sql/sql_connect.cc:1375(do_handle_one_connection(THD*))[0x782480]

sql/sql_connect.cc:1290(handle_one_connection)[0x7821d3]

/lib64/libpthread.so.0[0x3aae2079d1]

/lib64/libc.so.6(clone+0x6d)[0x3aadee886d]

Trying to get some variables.

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

Query (0x7ffd94053568): UPDATE table_a a JOIN table_b b ON a.c1 = b.c1 JOIN view_vw vw ON b.c2 = vw.c1 JOIN table_t del ON vw.c2 = del.c2 SET a.c2 = (         SELECT                 max(t.c1)         FROM                 table_t t,                 view_vw i         WHERE                 del.c2 = t.c2         AND vw.c3 = i.c3         AND t.c3 = 4 ) WHERE         a.c2 IS NULL OR a.c2 < '2011-05-01'

Connection ID (thread ID): 262

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