#5  <signal handler called>

#6  0x00000000000000c5 in ?? ()

#7  0x00005568b590bc4d in free_field_buffers_larger_than (table=0x7f321c041940, size=65536) at /data/src/10.3/sql/table.cc:3615

#8  0x00005568b576cb5e in close_thread_table (thd=0x7f321c000b00, table_ptr=0x7f321c000bf0) at /data/src/10.3/sql/sql_base.cc:900

#9  0x00005568b576c866 in close_thread_tables (thd=0x7f321c000b00) at /data/src/10.3/sql/sql_base.cc:852

#10 0x00005568b5824296 in Prepared_statement::prepare (this=0x7f321c013470, packet=0x7f321c00b161 "", packet_len=97) at /data/src/10.3/sql/sql_prepare.cc:3980

#11 0x00005568b5820b97 in mysqld_stmt_prepare (thd=0x7f321c000b00, packet=0x7f321c00b161 "", packet_length=97) at /data/src/10.3/sql/sql_prepare.cc:2596

#12 0x00005568b57f5f88 in dispatch_command (command=COM_STMT_PREPARE, thd=0x7f321c000b00, packet=0x7f321c00b161 "", packet_length=97, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:1803

#13 0x00005568b57f4cfa in do_command (thd=0x7f321c000b00) at /data/src/10.3/sql/sql_parse.cc:1391

#14 0x00005568b595778b in do_handle_one_connection (connect=0x5568b8c22860) at /data/src/10.3/sql/sql_connect.cc:1402

#15 0x00005568b5957518 in handle_one_connection (arg=0x5568b8c22860) at /data/src/10.3/sql/sql_connect.cc:1308

#16 0x00007f32b026e494 in start_thread (arg=0x7f32ac076700) at pthread_create.c:333

#17 0x00007f32ae65493f in clone () from /lib/x86_64-linux-gnu/libc.so.6

perl ./runall-new.pl --duration=350 --threads=6 --seed=1523797457 --reporters=Backtrace,ErrorLog,Deadlock --validators=TransformerNoComparator --views --redefine=conf/mariadb/versioning.yy --redefine=conf/mariadb/alter_table.yy --redefine=conf/mariadb/bulk_insert.yy --redefine=conf/mariadb/sequences.yy --basedir=/data/bld/10.3 --mysqld=--log_output=FILE --mysqld=--max-statement-time=30 --mysqld=--lock-wait-timeout=10 --mysqld=--loose-innodb-lock-wait-timeout=5 --mysqld=--loose-debug_assert_on_not_freed_memory=0 --grammar=conf/runtime/connect_kill_sql.yy --gendata=conf/runtime/connect_kill_data.zz --ps-protocol --transformers=ExecuteAsCTE,ExecuteAsDeleteReturning,ExecuteAsExcept,ExecuteAsInsertSelect,ExecuteAsIntersect,ExecuteAsUnion,ExecuteAsUpdateDelete,ExecuteAsView,ExecuteAsSPTwice --vardir=/dev/shm/vardir