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  1. MariaDB Server
  2. MDEV-13721

Assertion `thd->mdl_context.is_lock_owner(MDL_key::TABLE, table->db, table->table_name, MDL_SHARED)' failed in mysql_rm_table_no_locks

    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 10.3
    • Fix Version/s: 10.3.3
    • Component/s: Sequences
    • Labels:
      None

      Description

      CREATE SEQUENCE s;
      CREATE TEMPORARY TABLE s (i INT);
      DROP SEQUENCE s;
      

      10.3 debug 016c35a7f2f4a

      mysqld: /data/src/10.3/sql/sql_table.cc:2360: int mysql_rm_table_no_locks(THD*, TABLE_LIST*, bool, bool, bool, bool, bool, bool): Assertion `thd->mdl_context.is_lock_owner(MDL_key::TABLE, table->db, table->table_name, MDL_SHARED)' failed.
      170903 17:45:26 [ERROR] mysqld got signal 6 ;
       
      #7  0x00007f256e323ee2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
      #8  0x0000563f91141a8f in mysql_rm_table_no_locks (thd=0x7f2558000b00, tables=0x7f2558014ad0, if_exists=false, drop_temporary=false, drop_view=false, drop_sequence=true, dont_log_query=false, dont_free_locks=false) at /data/src/10.3/sql/sql_table.cc:2358
      #9  0x0000563f9114109e in mysql_rm_table (thd=0x7f2558000b00, tables=0x7f2558014ad0, if_exists=false, drop_temporary=false, drop_sequence=true) at /data/src/10.3/sql/sql_table.cc:2087
      #10 0x0000563f91081855 in mysql_execute_command (thd=0x7f2558000b00) at /data/src/10.3/sql/sql_parse.cc:5010
      #11 0x0000563f9108abd4 in mysql_parse (thd=0x7f2558000b00, rawbuf=0x7f2558014a08 "DROP SEQUENCE s", length=15, parser_state=0x7f25685ba610, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:7921
      #12 0x0000563f9107832e in dispatch_command (command=COM_QUERY, thd=0x7f2558000b00, packet=0x7f2558149c51 "DROP SEQUENCE s", packet_length=15, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:1819
      #13 0x0000563f91076d90 in do_command (thd=0x7f2558000b00) at /data/src/10.3/sql/sql_parse.cc:1370
      #14 0x0000563f911cd646 in do_handle_one_connection (connect=0x563f9359a260) at /data/src/10.3/sql/sql_connect.cc:1418
      #15 0x0000563f911cd3d3 in handle_one_connection (arg=0x563f9359a260) at /data/src/10.3/sql/sql_connect.cc:1324
      #16 0x0000563f916451dc in pfs_spawn_thread (arg=0x563f93633240) at /data/src/10.3/storage/perfschema/pfs.cc:1862
      #17 0x00007f2570268494 in start_thread (arg=0x7f25685bb700) at pthread_create.c:333
      #18 0x00007f256e3e093f in clone () from /lib/x86_64-linux-gnu/libc.so.6
      

      No visible problem on a non-debug build, sequence gets dropped, the temporary table remains.

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              • Assignee:
                monty Michael Widenius
                Reporter:
                elenst Elena Stepanova
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                Dates

                • Created:
                  Updated:
                  Resolved: