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  1. MariaDB Server
  2. MDEV-28952

Assertion `t->s->tmp_table || thd->mdl_context.is_lock_owner(MDL_key::TABLE, t->s->db.str, t->s->table_name.str, t->reginfo.lock_type >= TL_WRITE_ALLOW_WRITE ? MDL_SHARED_WRITE : MDL_SHARED_READ)' failed

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      --source include/have_innodb.inc
      --source include/have_sequence.inc
       
      CREATE OR REPLACE TABLE t1 (id VARCHAR(64) NOT NULL) ENGINE=InnoDB;
      SET autocommit=FALSE;
      CREATE TABLE t2 (c CHAR(1)) ENGINE=InnoDB;
      LOCK TABLES t1 WRITE,t2 WRITE;
      --error 1005
      CREATE OR REPLACE TABLE t1 (b INT) ENGINE=SEQUENCE;
      --error 1025
      ALTER TABLE t1 RENAME mysqltest.t1;
      --error 1100
      INSERT INTO t1 VALUES (100,100);
      FLUSH TABLES;
      

      Leads to

      10.10.0 7ac78c5aaf026d46ccecb94e0badd9cab5c28869

      mysqld: /test/mtest/10.10/sql/lock.cc:170: int lock_tables_check(THD*, TABLE**, uint, uint): Assertion `t->s->tmp_table || thd->mdl_context.is_lock_owner(MDL_key::TABLE, t->s->db.str, t->s->table_name.str, t->reginfo.lock_type >= TL_WRITE_ALLOW_WRITE ? MDL_SHARED_WRITE : MDL_SHARED_READ)' failed.
      

      10.10.0 7ac78c5aaf026d46ccecb94e0badd9cab5c28869

      Core was generated by `/test/mtest/mariadb-10.10.0-linux-x86_64-ddl_new/bin/mysqld --no-defaults --cor'.
      Program terminated with signal SIGABRT, Aborted.
      #0  __pthread_kill (threadid=<optimized out>, signo=6)
          at ../sysdeps/unix/sysv/linux/pthread_kill.c:56
      [Current thread is 1 (Thread 0x14f4f8111700 (LWP 2895445))]
      (gdb) bt
      #0  __pthread_kill (threadid=<optimized out>, signo=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56
      #1  0x0000562bc58a88aa in my_write_core (sig=6) at /test/mtest/10.10/mysys/stacktrace.c:424
      #2  0x0000562bc4fff117 in handle_fatal_signal (sig=6) at /test/mtest/10.10/sql/signal_handler.cc:345
      #3  <signal handler called>
      #4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
      #5  0x000014f4fa6be859 in __GI_abort () at abort.c:79
      #6  0x000014f4fa6be729 in __assert_fail_base (fmt=0x14f4fa854588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x562bc5c0b288 "t->s->tmp_table || thd->mdl_context.is_lock_owner(MDL_key::TABLE, t->s->db.str, t->s->table_name.str, t->reginfo.lock_type >= TL_WRITE_ALLOW_WRITE ? MDL_SHARED_WRITE : MDL_SHARED_READ)", file=0x562bc5c0b131 "/test/mtest/10.10/sql/lock.cc", line=170, function=<optimized out>) at assert.c:92
      #7  0x000014f4fa6d0006 in __GI___assert_fail (assertion=0x562bc5c0b288 "t->s->tmp_table || thd->mdl_context.is_lock_owner(MDL_key::TABLE, t->s->db.str, t->s->table_name.str, t->reginfo.lock_type >= TL_WRITE_ALLOW_WRITE ? MDL_SHARED_WRITE : MDL_SHARED_READ)", file=0x562bc5c0b131 "/test/mtest/10.10/sql/lock.cc", line=170, function=0x562bc5c0b198 "int lock_tables_check(THD*, TABLE**, uint, uint)") at assert.c:101
      #8  0x0000562bc517ea98 in lock_tables_check (thd=0x14f4b4000db8, tables=0x14f4f810f9c0, count=2, flags=18539) at /test/mtest/10.10/sql/lock.cc:170
      #9  0x0000562bc517ed52 in mysql_lock_tables (thd=0x14f4b4000db8, tables=0x14f4f810f9c0, count=2, flags=18539) at /test/mtest/10.10/sql/lock.cc:291
      #10 0x0000562bc4b7d347 in Locked_tables_list::reopen_tables (this=0x14f4b4004ff0, thd=0x14f4b4000db8, need_reopen=false) at /test/mtest/10.10/sql/sql_base.cc:2870
      #11 0x0000562bc4b77a46 in close_cached_tables (thd=0x14f4b4000db8, tables=0x0, wait_for_refresh=true, timeout=86400) at /test/mtest/10.10/sql/sql_base.cc:403
      #12 0x0000562bc4e52435 in reload_acl_and_cache (thd=0x14f4b4000db8, options=4, tables=0x0, write_to_binlog=0x14f4f810feb0) at /test/mtest/10.10/sql/sql_reload.cc:337
      #13 0x0000562bc4c39c84 in mysql_execute_command (thd=0x14f4b4000db8, is_called_from_prepared_stmt=false) at /test/mtest/10.10/sql/sql_parse.cc:5463
      #14 0x0000562bc4c41f16 in mysql_parse (thd=0x14f4b4000db8, rawbuf=0x14f4b4013f40 "FLUSH TABLES", length=12, parser_state=0x14f4f8110480) at /test/mtest/10.10/sql/sql_parse.cc:8038
      #15 0x0000562bc4c2e2ac in dispatch_command (command=COM_QUERY, thd=0x14f4b4000db8, packet=0x14f4b400b9e9 "FLUSH TABLES", packet_length=12, blocking=true) at /test/mtest/10.10/sql/sql_parse.cc:1894
      #16 0x0000562bc4c2cc8d in do_command (thd=0x14f4b4000db8, blocking=true) at /test/mtest/10.10/sql/sql_parse.cc:1407
      #17 0x0000562bc4e0aebb in do_handle_one_connection (connect=0x562bc912e2c8, put_in_cache=true) at /test/mtest/10.10/sql/sql_connect.cc:1418
      #18 0x0000562bc4e0ab4b in handle_one_connection (arg=0x562bc923c5c8) at /test/mtest/10.10/sql/sql_connect.cc:1312
      #19 0x0000562bc531f3bf in pfs_spawn_thread (arg=0x562bc9131e78) at /test/mtest/10.10/storage/perfschema/pfs.cc:2201
      #20 0x000014f4fabea609 in start_thread (arg=<optimized out>) at pthread_create.c:477
      #21 0x000014f4fa7bb163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      ramesh@rame

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              Assignee:
              midenok Aleksey Midenkov
              Reporter:
              ramesh Ramesh Sivaraman
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