sql_sequence.kill failed in buildbot on embedded, server crash in THD::awake_no_mutex

sql_sequence.kill 'innodb'               w2 [ fail ]

        Test ended at 2020-07-30 16:00:16

CURRENT_TEST: sql_sequence.kill

Warning: /mnt/buildbot/build/mariadb-10.3.24/libmysqld/examples/mysqltest_embedded: unknown variable 'loose-ssl-ca=/mnt/buildbot/build/mariadb-10.3.24/mysql-test/std_data/cacert.pem'

Warning: /mnt/buildbot/build/mariadb-10.3.24/libmysqld/examples/mysqltest_embedded: unknown variable 'loose-ssl-cert=/mnt/buildbot/build/mariadb-10.3.24/mysql-test/std_data/client-cert.pem'

Warning: /mnt/buildbot/build/mariadb-10.3.24/libmysqld/examples/mysqltest_embedded: unknown variable 'loose-ssl-key=/mnt/buildbot/build/mariadb-10.3.24/mysql-test/std_data/client-key.pem'

Warning: /mnt/buildbot/build/mariadb-10.3.24/libmysqld/examples/mysqltest_embedded: unknown option '--loose-skip-ssl'

Got ERROR: "InnoDB: Operating system error number 2 in a file operation." errno: 2000

Got ERROR: "InnoDB: The error means the system cannot find the path specified." errno: 2000

Got ERROR: "InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them." errno: 2000

Got ERROR: "InnoDB: Cannot open datafile for read-only: './mysql/innodb_index_stats.ibd' OS error: 71" errno: 2000

Got ERROR: "InnoDB: Operating system error number 2 in a file operation." errno: 2000

Got ERROR: "InnoDB: The error means the system cannot find the path specified." errno: 2000

Got ERROR: "InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them." errno: 2000

Got ERROR: "InnoDB: Cannot open datafile for read-only: './mysql/innodb_table_stats.ibd' OS error: 71" errno: 2000

Got ERROR: "InnoDB: Operating system error number 2 in a file operation." errno: 2000

Got ERROR: "InnoDB: The error means the system cannot find the path specified." errno: 2000

Got ERROR: "InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them." errno: 2000

Got ERROR: "InnoDB: Cannot open datafile for read-only: './mysql/transaction_registry.ibd' OS error: 71" errno: 2000

mysqltest got signal 11

read_command_buf (0x82912cd8): --ev

conn->name (0x82bbe8e0): 

conn->cur_query (0x82c0ab48): KILL 7

Attempting backtrace...

stack_bottom = 0x0 thread_stack 0x49000

mysys/stacktrace.c:269(my_print_stacktrace)[0x803d1307]

client/mysqltest.cc:9025(dump_backtrace())[0x803b3472]

client/mysqltest.cc:9042(signal_handler)[0x803b34b0]

addr2line: '': No such file

[0xb76f9c14]

sql/sql_class.cc:1852(THD::awake_no_mutex(killed_state))[0x8067dad0]

sql/sql_parse.cc:8988(kill_one_thread(THD*, long long, killed_state, killed_type))[0x808b835b]

sql/sql_parse.cc:9094(sql_kill(THD*, long long, killed_state, killed_type))[0x808b87c8]

sql/sql_parse.cc:5430(mysql_execute_command(THD*))[0x808b0c48]

sql/sql_prepare.cc:4812(Prepared_statement::execute(String*, bool))[0x80a20447]

sql/sql_prepare.cc:4240(Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*))[0x80a1efd7]

sql/sql_prepare.cc:3240(mysql_stmt_execute_common(THD*, unsigned long, unsigned char*, unsigned char*, unsigned long, bool, bool))[0x80a1cae0]

sql/sql_prepare.cc:3138(mysqld_stmt_execute(THD*, char*, unsigned int))[0x80a1c689]

sql/sql_parse.cc:1790(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x808a81e5]

libmysqld/lib_sql.cc:171(emb_advanced_command)[0x80402df9]

libmysqld/lib_sql.cc:352(emb_stmt_execute)[0x8040353e]

libmysqld/libmysql.c:2583(mysql_stmt_execute)[0x803e77ad]

client/mysqltest.cc:944(connection_thread)[0x803a1f01]

/lib/i386-linux-gnu/libpthread.so.0(+0x62b5)[0xb76d02b5]

/lib/i386-linux-gnu/libc.so.6(clone+0x6e)[0xb712116e]

Writing a core file...