Comment 0 for bug 1384570

**** GDB info

#0 0x00007fc97c079771 in pthread_kill () from /lib64/libpthread.so.0
#1 0x0000000000ab7586 in my_write_core (sig=11) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/mysys/stacktrace.c:422
#2 0x000000000072f9ff in handle_fatal_signal (sig=11) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/signal_handler.cc:236
#3 <signal handler called>
#4 0x000000000071e27e in MDL_ticket::has_pending_conflicting_lock (this=0x8f8f8f8f8f8f8f8f) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/mdl.cc:3031
#5 0x00000000007be997 in mysql_ha_flush (thd=0x28b95e0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_handler.cc:982
#6 0x0000000000774586 in open_tables (thd=0x28b95e0, start=0x7fc95c8a1840, counter=0x28bbbe8, flags=0, prelocking_strategy=0x7fc95c8a1880) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_base.cc:5137
#7 0x0000000000775932 in open_normal_and_derived_tables (thd=0x28b95e0, tables=0x7fc920005190, flags=0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_base.cc:5913
#8 0x00000000007c1296 in mysql_insert (thd=0x28b95e0, table_list=0x7fc920005190, fields=..., values_list=..., update_fields=..., update_values=..., duplic=DUP_ERROR, ignore=false) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_insert.cc:750
#9 0x00000000007e5262 in mysql_execute_command (thd=0x28b95e0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:3851
#10 0x00000000007ed193 in mysql_parse (thd=0x28b95e0, rawbuf=0x7fc9200050a0 "INSERT INTO t1 VALUES(0xAFB2)", length=29, parser_state=0x7fc95c8a2e30) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:6773
#11 0x00000000007df5fc in dispatch_command (command=COM_QUERY, thd=0x28b95e0, packet=0x30b5781 "INSERT INTO t1 VALUES(0xAFB2);", packet_length=30) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:1432
#12 0x00000000007de528 in do_command (thd=0x28b95e0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_parse.cc:1049
#13 0x00000000007a64e5 in do_handle_one_connection (thd_arg=0x28b95e0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_connect.cc:1532
#14 0x00000000007a5fed in handle_one_connection (arg=0x28b95e0) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/sql/sql_connect.cc:1443
#15 0x0000000000dc5bac in pfs_spawn_thread (arg=0x3071030) at /mnt/workspace/percona-server-5.6-binaries-debug-yassl/label_exp/centos6-64/percona-server-5.6.21-69.0/storage/perfschema/pfs.cc:1860
#16 0x00007fc97c074df3 in start_thread () from /lib64/libpthread.so.0
#17 0x00007fc97ad3e01d in clone () from /lib64/libc.so.6

**** SQL info

INSERT INTO t1 VALUES(0xAFB2)