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  1. MariaDB Server
  2. MDEV-22317

SIGSEGV in my_free/delete_dynamic in optimized builds (ARIA)

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      USE test;
      CREATE TABLE t(c int) ENGINE=Aria;
      SET @@SESSION.default_master_connection='0';
      CHANGE MASTER TO master_use_gtid=slave_pos;
      SET @@GLOBAL.replicate_wild_ignore_table='';
      

      Leads to:

      10.5.3 181f17c3cd4366f58d9efbff9d7556bb49742ed4

      Core was generated by `/test/MD180420-mariadb-10.5.3-linux-x86_64-opt/bin/mysqld --no-defaults --core-'.
      Program terminated with signal SIGSEGV, Segmentation fault.
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11)
          at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      [Current thread is 1 (Thread 0x7f31b996c700 (LWP 19532))]
      (gdb) bt
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      #1  0x000055e2e4266e87 in my_write_core (sig=sig@entry=11) at /test/10.5_opt/mysys/stacktrace.c:518
      #2  0x000055e2e3c292ca in handle_fatal_signal (sig=11) at /test/10.5_opt/sql/signal_handler.cc:329
      #3  <signal handler called>
      #4  my_free (ptr=0x200000) at /test/10.5_opt/mysys/my_malloc.c:196
      #5  0x000055e2e423cc3f in delete_dynamic (array=array@entry=0x7f318ac912c8) at /test/10.5_opt/mysys/array.c:305
      #6  0x000055e2e397ff77 in Rpl_filter::set_wild_ignore_table (this=this@entry=0x7f318ac911c0, table_spec=table_spec@entry=0x7f318ac47208 "") at /test/10.5_opt/sql/rpl_filter.cc:441
      #7  0x000055e2e3b3676b in Sys_var_rpl_filter::set_filter_value (this=this@entry=0x55e2e4ddb0a0 <Sys_replicate_wild_ignore_table>, value=0x7f318ac47208 "", mi=mi@entry=0x7f318ac98000) at /test/10.5_opt/sql/sys_vars.cc:5254
      #8  0x000055e2e3b36813 in Sys_var_rpl_filter::global_update (this=0x55e2e4ddb0a0 <Sys_replicate_wild_ignore_table>, thd=<optimized out>, var=0x7f318ac471b8) at /test/10.5_opt/sql/sys_vars.cc:5221
      #9  0x000055e2e398315f in sys_var::update (this=0x55e2e4ddb0a0 <Sys_replicate_wild_ignore_table>, thd=0x7f318ac12018, var=0x7f318ac471b8) at /test/10.5_opt/sql/set_var.cc:207
      #10 0x000055e2e3983637 in set_var::update (this=<optimized out>, thd=<optimized out>) at /test/10.5_opt/sql/set_var.cc:859
      #11 0x000055e2e3984949 in sql_set_variables (thd=thd@entry=0x7f318ac12018, var_list=var_list@entry=0x7f318ac16d70, free=free@entry=true) at /test/10.5_opt/sql/set_var.cc:746
      #12 0x000055e2e3a354d1 in mysql_execute_command (thd=thd@entry=0x7f318ac12018) at /test/10.5_opt/sql/sql_parse.cc:4976
      #13 0x000055e2e3a3ab9c in mysql_parse (thd=thd@entry=0x7f318ac12018, rawbuf=<optimized out>, length=43, parser_state=parser_state@entry=0x7f31b996b4d0, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_opt/sql/sql_parse.cc:7953
      #14 0x000055e2e3a2fa10 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f318ac12018, packet=packet@entry=0x7f318ac3a019 "SET @@GLOBAL.replicate_wild_ignore_table=''", packet_length=packet_length@entry=43, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_opt/sql/sql_parse.cc:1839
      #15 0x000055e2e3a2dd2f in do_command (thd=0x7f318ac12018) at /test/10.5_opt/sql/sql_parse.cc:1358
      #16 0x000055e2e3b22d7e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x7f31b74329b8, put_in_cache=put_in_cache@entry=true) at /test/10.5_opt/sql/sql_connect.cc:1422
      #17 0x000055e2e3b22f24 in handle_one_connection (arg=arg@entry=0x7f31b74329b8) at /test/10.5_opt/sql/sql_connect.cc:1319
      #18 0x000055e2e3e8f52a in pfs_spawn_thread (arg=0x7f31b744b018) at /test/10.5_opt/storage/perfschema/pfs.cc:2201
      #19 0x00007f31b8d936db in start_thread (arg=0x7f31b996c700) at pthread_create.c:463
      #20 0x00007f31b819188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      Bug confirmed present in:
      MariaDB: 10.5.2 (opt), 10.5.3 (opt)

      Bug confirmed not present in:
      MariaDB: 10.1.45 (dbg), 10.1.45 (opt), 10.2.32 (dbg), 10.2.32 (opt), 10.3.23 (dbg), 10.3.23 (opt), 10.4.13 (dbg), 10.4.13 (opt), 10.5.2 (dbg), 10.5.3 (dbg)
      MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.47 (dbg), 5.6.47 (opt), 5.7.29 (dbg), 5.7.29 (opt), 8.0.19 (dbg), 8.0.19 (opt)

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              Assignee:
              sujatha.sivakumar Sujatha Sivakumar
              Reporter:
              Roel Roel Van de Paar
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                Created:
                Updated:
                Resolved: