SEGV hit during RQG testing

Workflow of RQG test

1. Start the server + generate some data

2. Several connections run a DDL/DML mix on the same tables

3. At some point of time during 2. the server process gets killed

4. Restart of the server

5. Try to check the integrity of InnoDB tables

Within 5. some

      SHOW KEYS FROM `test`.`t3` harvested

2013: Lost connection to MySQL server

and the server error log shows

SUMMARY: AddressSanitizer: SEGV /storage/innobase/include/dict0mem.h:1178 in dict_index_t::is_spatial() const

Thread T33 created by T0 here:

    #0 0x131f70338d2f in __interceptor_pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x37d2f)

    #1 0x560720863ff6 in my_thread_create /storage/perfschema/my_thread.h:34

    #2 0x560720869693 in pfs_spawn_thread_v1 /storage/perfschema/pfs.cc:2252

    #3 0x56071f48814c in inline_mysql_thread_create /include/mysql/psi/mysql_thread.h:1321

    #4 0x56071f49d5e9 in create_thread_to_handle_connection(CONNECT*) /sql/mysqld.cc:5951

    #5 0x56071f49dc4a in create_new_thread(CONNECT*) /sql/mysqld.cc:6010

    #6 0x56071f49df70 in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /sql/mysqld.cc:6075

    #7 0x56071f49ea8d in handle_connections_sockets() /sql/mysqld.cc:6202

    #8 0x56071f49ce47 in mysqld_main(int, char**) /sql/mysqld.cc:5620

    #9 0x56071f486879 in main /sql/main.cc:25

    #10 0x7f3a327f6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

==8558==ABORTING

origin/HEAD, origin/10.5, 10.5 bd62a636a42f1486437cbed21198315f44d9e7b6 2020-06-14T18:40:07+09:00

Per Thiru all MariaDB versions >= 10.2 are affected.

RQG

git clone https://github.com/mleich1/rqg --branch experimental RQG

origin/experimental 611a31e38a3bc157392c0748c95991b6a248bb3b 2020-06-09T15:31:46+02:00

perl rqg.pl \

--grammar=conf/mariadb/table_stress_innodb_nocopy.yy \

--gendata=conf/mariadb/table_stress.zz \

--gendata_sql=conf/mariadb/table_stress.sql \

--reporters=CrashRecovery1 \

--mysqld=--innodb_use_native_aio=1 \

--mysqld=--innodb_stats_persistent=off \

--mysqld=--innodb_lock_schedule_algorithm=fcfs \

--mysqld=--loose-idle_write_transaction_timeout=0 \

--mysqld=--loose-idle_transaction_timeout=0 \

--mysqld=--loose-idle_readonly_transaction_timeout=0 \

--mysqld=--connect_timeout=60 \

--mysqld=--interactive_timeout=28800 \

--mysqld=--slave_net_timeout=60 \

--mysqld=--net_read_timeout=30 \

--mysqld=--net_write_timeout=60 \

--mysqld=--loose-table_lock_wait_timeout=50 \

--mysqld=--wait_timeout=28800 \

--mysqld=--lock-wait-timeout=86400 \

--mysqld=--innodb-lock-wait-timeout=50 \

--no-mask \

--queries=10000000 \

--duration=300 \

--seed=random \

--reporters=Backtrace \

--reporters=ErrorLog \

--reporters=Deadlock1 \

--validators=None \

--mysqld=--log_output=none \

--mysqld=--log-bin \

--mysqld=--log_bin_trust_function_creators=1 \

--mysqld=--loose-max-statement-time=30 \

--mysqld=--loose-debug_assert_on_not_freed_memory=0 \

--engine=InnoDB \

--restart_timeout=60 \

--threads=9 \

--redefine=conf/mariadb/redefine_ment-601.yy \

... certain local settings