Thread pointer: 0x0x7fd71c848008

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 = 0x7fd70cc47d30 thread_stack 0x48000

/usr/sbin/mysqld(my_print_stacktrace+0x2b)[0xb7bcbb]

/usr/sbin/mysqld(handle_fatal_signal+0x398)[0x72b3b8]

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

/usr/sbin/mysqld[0x601014]

/usr/sbin/mysqld[0x529d21]

/usr/sbin/mysqld(_ZN4JOIN14optimize_innerEv+0x6de)[0x6212ee]

/usr/sbin/mysqld(_ZN4JOIN8optimizeEv+0x28)[0x6237a8]

/usr/sbin/mysqld(_ZN13st_select_lex31optimize_unflattened_subqueriesEb+0x88)[0x5cae88]

/usr/sbin/mysqld(_ZN4JOIN14optimize_innerEv+0x1e59)[0x622a69]

/usr/sbin/mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0xd8)[0x6239c8]

/usr/sbin/mysqld(_Z18mysql_multi_updateP3THDP10TABLE_LISTP4ListI4ItemES6_PS4_y15enum_duplicatesbP18st_select_lex_unitP13st_select_lexPP12multi_update+0x1ba)[0x66994a]

/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x47f8)[0x5d8528]

/usr/sbin/mysqld[0x5da5e7]

/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x1c7c)[0x5dc9cc]

/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x453)[0x699b53]

/usr/sbin/mysqld(handle_one_connection+0x42)[0x699c22]

/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 (0x7fd71c869020): 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): 7

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

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.

Writing a core file

150507 13:44:19 mysqld_safe Number of processes running now: 0

150507 13:44:19 mysqld_safe mysqld restarted

150507 13:44:19 [Note] /usr/sbin/mysqld (mysqld 10.0.18-MariaDB-log) starting as process 15051 ...