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  1. MariaDB Server
  2. MDEV-27187

SIGSEGV in ha_spider::lock_tables or Assertion: thd->transaction->stmt.ha_list == __null || trans == &thd->transaction->stmt|SIGABRT|ha_commit_trans|trans_begin|mysql_execute_command|mysql_parse failed on starting trx under FTWRL

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      Description

      INSTALL PLUGIN spider SONAME 'ha_spider.so';
      CREATE TABLE t (c1 INT,c2 INT,c3 INT,c4 INT,KEY REFID (c3)) ENGINE=SPIDER;
      INSERT INTO t VALUES (5,1);
      DELETE FROM d.t;
      FLUSH TABLE t WITH READ LOCK;
      START TRANSACTION;
      

      Leads to:

      10.6.6 e0e24b180d090d7ee378c097ab02df891b61a965 (Optimized)

      Core was generated by `/test/MD031221-mariadb-10.6.6-linux-x86_64-opt/bin/mysqld --no-defaults --core-'.
      Program terminated with signal SIGSEGV, Segmentation fault.
      #0  0x00001462e41514a1 in ha_spider::lock_tables (
          this=this@entry=0x1462ac0484d0)
          at /test/10.6_opt/storage/spider/ha_spider.cc:16410
      16410	        if (
      [Current thread is 1 (Thread 0x1462f8128700 (LWP 336850))]
      (gdb) bt
      #0  0x00001462e41514a1 in ha_spider::lock_tables (this=this@entry=0x1462ac0484d0) at /test/10.6_opt/storage/spider/ha_spider.cc:16410
      #1  0x00001462e41519b8 in ha_spider::external_lock (this=0x1462ac0484d0, thd=<optimized out>, lock_type=2) at /test/10.6_opt/storage/spider/ha_spider.cc:1350
      #2  0x000055b3726973b4 in handler::ha_external_lock (this=0x1462ac0484d0, thd=thd@entry=0x1462ac000c58, lock_type=lock_type@entry=2) at /test/10.6_opt/sql/handler.cc:7045
      #3  0x000055b37279853a in handler::ha_external_unlock (thd=0x1462ac000c58, this=<optimized out>) at /test/10.6_opt/sql/handler.h:3590
      #4  unlock_external (count=<optimized out>, table=0x1462ac0628c8, thd=0x1462ac000c58) at /test/10.6_opt/sql/lock.cc:727
      #5  mysql_unlock_tables (thd=0x1462ac000c58, sql_lock=0x1462ac062898, free_lock=<optimized out>) at /test/10.6_opt/sql/lock.cc:432
      #6  0x000055b372798ba8 in mysql_unlock_tables (thd=thd@entry=0x1462ac000c58, sql_lock=<optimized out>) at /test/10.6_opt/sql/lock.cc:415
      #7  0x000055b3723e8585 in close_thread_tables (thd=thd@entry=0x1462ac000c58) at /test/10.6_opt/sql/sql_base.cc:913
      #8  0x000055b3723e934b in Locked_tables_list::unlock_locked_tables (thd=0x1462ac000c58, this=0x1462ac004c40) at /test/10.6_opt/sql/sql_base.cc:2378
      #9  Locked_tables_list::unlock_locked_tables (this=this@entry=0x1462ac004c40, thd=thd@entry=0x1462ac000c58) at /test/10.6_opt/sql/sql_base.cc:2349
      #10 0x000055b3725783fc in trans_begin (thd=thd@entry=0x1462ac000c58, flags=0) at /test/10.6_opt/sql/transaction.cc:115
      #11 0x000055b37245c1c0 in mysql_execute_command (thd=0x1462ac000c58, is_called_from_prepared_stmt=<optimized out>) at /test/10.6_opt/sql/sql_parse.cc:5599
      #12 0x000055b37244a9a6 in mysql_parse (thd=0x1462ac000c58, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /test/10.6_opt/sql/sql_parse.cc:8030
      #13 0x000055b372456b65 in dispatch_command (command=COM_QUERY, thd=0x1462ac000c58, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /test/10.6_opt/sql/sql_class.h:1358
      #14 0x000055b372458d57 in do_command (thd=0x1462ac000c58, blocking=blocking@entry=true) at /test/10.6_opt/sql/sql_parse.cc:1404
      #15 0x000055b372568957 in do_handle_one_connection (connect=<optimized out>, put_in_cache=true) at /test/10.6_opt/sql/sql_connect.cc:1418
      #16 0x000055b372568c9d in handle_one_connection (arg=arg@entry=0x55b375764f68) at /test/10.6_opt/sql/sql_connect.cc:1312
      #17 0x000055b3728f4828 in pfs_spawn_thread (arg=0x55b3756d0ec8) at /test/10.6_opt/storage/perfschema/pfs.cc:2201
      #18 0x00001462f925e609 in start_thread (arg=<optimized out>) at pthread_create.c:477
      #19 0x00001462f8e4c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      10.6.6 e0e24b180d090d7ee378c097ab02df891b61a965 (Debug)

      mysqld: /test/10.6_dbg/sql/handler.cc:1645: int ha_commit_trans(THD*, bool): Assertion `thd->transaction->stmt.ha_list == __null || trans == &thd->transaction->stmt' failed.
      

      10.6.6 e0e24b180d090d7ee378c097ab02df891b61a965 (Debug)

      Core was generated by `/test/MD031221-mariadb-10.6.6-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
      Program terminated with signal SIGABRT, Aborted.
      #0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
      [Current thread is 1 (Thread 0x1531d08c5700 (LWP 376119))]
      (gdb) bt
      #0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
      #1  0x00001531d3282859 in __GI_abort () at abort.c:79
      #2  0x00001531d3282729 in __assert_fail_base (fmt=0x1531d3418588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x56144a82d760 "thd->transaction->stmt.ha_list == __null || trans == &thd->transaction->stmt", file=0x56144a82bf33 "/test/10.6_dbg/sql/handler.cc", line=1645, function=<optimized out>) at assert.c:92
      #3  0x00001531d3293f36 in __GI___assert_fail (assertion=assertion@entry=0x56144a82d760 "thd->transaction->stmt.ha_list == __null || trans == &thd->transaction->stmt", file=file@entry=0x56144a82bf33 "/test/10.6_dbg/sql/handler.cc", line=line@entry=1645, function=function@entry=0x56144a82fcd0 "int ha_commit_trans(THD*, bool)") at assert.c:101
      #4  0x0000561449ccbbea in ha_commit_trans (thd=thd@entry=0x15316c000db8, all=all@entry=true) at /test/10.6_dbg/sql/handler.cc:1645
      #5  0x0000561449b45c01 in trans_begin (thd=thd@entry=0x15316c000db8, flags=0) at /test/10.6_dbg/sql/transaction.cc:127
      #6  0x00005614499d11df in mysql_execute_command (thd=thd@entry=0x15316c000db8, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /test/10.6_dbg/sql/sql_parse.cc:5599
      #7  0x00005614499b8dec in mysql_parse (thd=thd@entry=0x15316c000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x1531d08c4400) at /test/10.6_dbg/sql/sql_parse.cc:8030
      #8  0x00005614499c7ab1 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x15316c000db8, packet=packet@entry=0x15316c00b769 "START TRANSACTION", packet_length=packet_length@entry=17, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1358
      #9  0x00005614499caeeb in do_command (thd=0x15316c000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1404
      #10 0x0000561449b30018 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x56144d374408, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1418
      #11 0x0000561449b3061d in handle_one_connection (arg=arg@entry=0x56144d374408) at /test/10.6_dbg/sql/sql_connect.cc:1312
      #12 0x0000561449fe1e4e in pfs_spawn_thread (arg=0x56144d2814d8) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
      #13 0x00001531d3791609 in start_thread (arg=<optimized out>) at pthread_create.c:477
      #14 0x00001531d337f293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      Bug confirmed present in:
      MariaDB: 10.4.23 (dbg), 10.5.14 (dbg), 10.6.6 (dbg), 10.6.6 (opt), 10.7.2 (dbg), 10.7.2 (opt), 10.8.0 (dbg), 10.8.0 (opt)

      Bug (or feature/syntax) confirmed not present in:
      MariaDB: 10.2.42 (dbg), 10.2.42 (opt), 10.3.33 (dbg), 10.3.33 (opt), 10.4.23 (opt), 10.5.14 (opt)
      MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.36 (dbg), 5.7.36 (opt), 8.0.27 (dbg), 8.0.27 (opt)

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            Assignee:
            nayuta-yanagisawa Nayuta Yanagisawa
            Reporter:
            Roel Roel Van de Paar
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              Created:
              Updated:
              Resolved:

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