Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-25906

SIGSEGV in flush_tables_with_read_lock on FTWRL or FTFE | SIGSEGV in ha_maria::extra

Details

    Description

      Similar to MDEV-25837 but not the same stack. This crashes optimized builds also.

      CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d;
      		 
      FLUSH TABLE v WITH READ LOCK;

      Leads to:

      10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug)

      		 
      Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
      		 
      Program terminated with signal SIGSEGV, Segmentation fault.
      		 
      #0  0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=
      		 
          0x152928000db8, all_tables=<optimized out>)
      		 
          at /test/10.6_dbg/sql/table.h:2755
      		 
      2755	  bool is_view() const { return (derived_type & DTYPE_VIEW); }
      		 
      [Current thread is 1 (Thread 0x152964d70700 (LWP 1650774))]
      		 
      (gdb) bt
      		 
      #0  0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=0x152928000db8, all_tables=<optimized out>) at /test/10.6_dbg/sql/table.h:2755
      		 
      #1  0x0000555e543fe6f3 in mysql_execute_command (thd=thd@entry=0x152928000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397
      		 
      #2  0x0000555e543e6890 in mysql_parse (thd=thd@entry=0x152928000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152964d6f400) at /test/10.6_dbg/sql/sql_parse.cc:8016
      		 
      #3  0x0000555e543f53fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x152928000db8, packet=packet@entry=0x15292800b769 "FLUSH TABLE v WITH READ LOCK", packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340
      		 
      #4  0x0000555e543f87da in do_command (thd=0x152928000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406
      		 
      #5  0x0000555e5455cc8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x555e5867f418, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410
      		 
      #6  0x0000555e5455d293 in handle_one_connection (arg=arg@entry=0x555e5867f418) at /test/10.6_dbg/sql/sql_connect.cc:1312
      		 
      #7  0x0000555e54a0b166 in pfs_spawn_thread (arg=0x555e58567d08) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
      		 
      #8  0x000015297a0f8609 in start_thread (arg=<optimized out>) at pthread_create.c:477
      		 
      #9  0x0000152979ce7293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

      10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Optimized)

      		 
      Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-opt/bin/mysqld --no-defaults --core-'.
      		 
      Program terminated with signal SIGSEGV, Segmentation fault.
      		 
      #0  0x00005637f4fe191d in flush_tables_with_read_lock (thd=thd@entry=
      		 
          0x1527f0000c58, all_tables=<optimized out>)
      		 
          at /test/10.6_opt/sql/table.h:2755
      		 
      2755	  bool is_view() const { return (derived_type & DTYPE_VIEW); }
      		 
      [Current thread is 1 (Thread 0x152828c84700 (LWP 2224119))]
      		 
      (gdb) bt
      		 
      #0  0x00005637f4fe191d in flush_tables_with_read_lock (thd=thd@entry=0x1527f0000c58, all_tables=<optimized out>) at /test/10.6_opt/sql/table.h:2755
      		 
      #1  0x00005637f4eba49c in mysql_execute_command (thd=0x1527f0000c58) at /test/10.6_opt/sql/sql_parse.cc:5397
      		 
      #2  0x00005637f4ea73f4 in mysql_parse (thd=0x1527f0000c58, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /test/10.6_opt/sql/sql_parse.cc:8016
      		 
      #3  0x00005637f4eb3295 in dispatch_command (command=COM_QUERY, thd=0x1527f0000c58, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /test/10.6_opt/sql/sql_class.h:1340
      		 
      #4  0x00005637f4eb51f7 in do_command (thd=0x1527f0000c58, blocking=blocking@entry=true) at /test/10.6_opt/sql/sql_parse.cc:1406
      		 
      #5  0x00005637f4fc3057 in do_handle_one_connection (connect=<optimized out>, put_in_cache=true) at /test/10.6_opt/sql/sql_connect.cc:1410
      		 
      #6  0x00005637f4fc33bd in handle_one_connection (arg=arg@entry=0x5637f7b26f68) at /test/10.6_opt/sql/sql_connect.cc:1312
      		 
      #7  0x00005637f534c8f8 in pfs_spawn_thread (arg=0x5637f7ad58c8) at /test/10.6_opt/storage/perfschema/pfs.cc:2201
      		 
      #8  0x000015283f039609 in start_thread (arg=<optimized out>) at pthread_create.c:477
      		 
      #9  0x000015283ec28293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

      Bug confirmed present in:
      MariaDB: 10.6.2 (dbg), 10.6.2 (opt)

      Bug (or feature/syntax) confirmed not present in:
      MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt)
      MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-26456 SIGSEGV in flush_tables_with_read_lock on FLUSH TABLE

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Task - A task that needs to be done. MDEV-15888 Implement FLUSH TABLES tbl_name [, tbl_name] ... WITH READ LOCK for views

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-25837 Assertion `thd->locked_tables_mode == LTM_NONE' failed in Locked_tables_list::init_locked_tables

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

          Activity

            Ascending order - Click to sort in descending order
            Roel Roel Van de Paar created issue -
            Roel Roel Van de Paar made changes -
            Field Original Value New Value
            Roel Roel Van de Paar made changes -
            Roel Roel Van de Paar made changes -
            Description Similar to MDEV-25837 but not the same stack.

            {code:sql}
            CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d;
            FLUSH TABLE v WITH READ LOCK;
            {code}

            Leads to:

            {noformat:title=10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug)}
            Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
            Program terminated with signal SIGSEGV, Segmentation fault.
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=
                0x152928000db8, all_tables=<optimized out>)
                at /test/10.6_dbg/sql/table.h:2755
            2755 bool is_view() const { return (derived_type & DTYPE_VIEW); }
            [Current thread is 1 (Thread 0x152964d70700 (LWP 1650774))]
            (gdb) bt
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=0x152928000db8, all_tables=<optimized out>) at /test/10.6_dbg/sql/table.h:2755
            #1 0x0000555e543fe6f3 in mysql_execute_command (thd=thd@entry=0x152928000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397
            #2 0x0000555e543e6890 in mysql_parse (thd=thd@entry=0x152928000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152964d6f400) at /test/10.6_dbg/sql/sql_parse.cc:8016
            #3 0x0000555e543f53fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x152928000db8, packet=packet@entry=0x15292800b769 "FLUSH TABLE v WITH READ LOCK", packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340
            #4 0x0000555e543f87da in do_command (thd=0x152928000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406
            #5 0x0000555e5455cc8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x555e5867f418, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410
            #6 0x0000555e5455d293 in handle_one_connection (arg=arg@entry=0x555e5867f418) at /test/10.6_dbg/sql/sql_connect.cc:1312
            #7 0x0000555e54a0b166 in pfs_spawn_thread (arg=0x555e58567d08) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
            #8 0x000015297a0f8609 in start_thread (arg=<optimized out>) at pthread_create.c:477
            #9 0x0000152979ce7293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
            {noformat}

            Bug confirmed present in:
            MariaDB: 10.6.2 (dbg), 10.6.2 (opt)

            Bug (or feature/syntax) confirmed not present in:
            MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt)
            MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)
            		Similar to MDEV-25837 but not the same stack. This crashes optimized builds also.

            {code:sql}
            CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d;
            FLUSH TABLE v WITH READ LOCK;
            {code}

            Leads to:

            {noformat:title=10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug)}
            Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
            Program terminated with signal SIGSEGV, Segmentation fault.
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=
                0x152928000db8, all_tables=<optimized out>)
                at /test/10.6_dbg/sql/table.h:2755
            2755 bool is_view() const { return (derived_type & DTYPE_VIEW); }
            [Current thread is 1 (Thread 0x152964d70700 (LWP 1650774))]
            (gdb) bt
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=0x152928000db8, all_tables=<optimized out>) at /test/10.6_dbg/sql/table.h:2755
            #1 0x0000555e543fe6f3 in mysql_execute_command (thd=thd@entry=0x152928000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397
            #2 0x0000555e543e6890 in mysql_parse (thd=thd@entry=0x152928000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152964d6f400) at /test/10.6_dbg/sql/sql_parse.cc:8016
            #3 0x0000555e543f53fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x152928000db8, packet=packet@entry=0x15292800b769 "FLUSH TABLE v WITH READ LOCK", packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340
            #4 0x0000555e543f87da in do_command (thd=0x152928000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406
            #5 0x0000555e5455cc8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x555e5867f418, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410
            #6 0x0000555e5455d293 in handle_one_connection (arg=arg@entry=0x555e5867f418) at /test/10.6_dbg/sql/sql_connect.cc:1312
            #7 0x0000555e54a0b166 in pfs_spawn_thread (arg=0x555e58567d08) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
            #8 0x000015297a0f8609 in start_thread (arg=<optimized out>) at pthread_create.c:477
            #9 0x0000152979ce7293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
            {noformat}

            Bug confirmed present in:
            MariaDB: 10.6.2 (dbg), 10.6.2 (opt)

            Bug (or feature/syntax) confirmed not present in:
            MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt)
            MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)
            Roel Roel Van de Paar made changes -
            Description Similar to MDEV-25837 but not the same stack. This crashes optimized builds also.

            {code:sql}
            CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d;
            FLUSH TABLE v WITH READ LOCK;
            {code}

            Leads to:

            {noformat:title=10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug)}
            Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
            Program terminated with signal SIGSEGV, Segmentation fault.
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=
                0x152928000db8, all_tables=<optimized out>)
                at /test/10.6_dbg/sql/table.h:2755
            2755 bool is_view() const { return (derived_type & DTYPE_VIEW); }
            [Current thread is 1 (Thread 0x152964d70700 (LWP 1650774))]
            (gdb) bt
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=0x152928000db8, all_tables=<optimized out>) at /test/10.6_dbg/sql/table.h:2755
            #1 0x0000555e543fe6f3 in mysql_execute_command (thd=thd@entry=0x152928000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397
            #2 0x0000555e543e6890 in mysql_parse (thd=thd@entry=0x152928000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152964d6f400) at /test/10.6_dbg/sql/sql_parse.cc:8016
            #3 0x0000555e543f53fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x152928000db8, packet=packet@entry=0x15292800b769 "FLUSH TABLE v WITH READ LOCK", packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340
            #4 0x0000555e543f87da in do_command (thd=0x152928000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406
            #5 0x0000555e5455cc8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x555e5867f418, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410
            #6 0x0000555e5455d293 in handle_one_connection (arg=arg@entry=0x555e5867f418) at /test/10.6_dbg/sql/sql_connect.cc:1312
            #7 0x0000555e54a0b166 in pfs_spawn_thread (arg=0x555e58567d08) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
            #8 0x000015297a0f8609 in start_thread (arg=<optimized out>) at pthread_create.c:477
            #9 0x0000152979ce7293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
            {noformat}

            Bug confirmed present in:
            MariaDB: 10.6.2 (dbg), 10.6.2 (opt)

            Bug (or feature/syntax) confirmed not present in:
            MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt)
            MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)
            		Similar to MDEV-25837 but not the same stack. This crashes optimized builds also.

            {code:sql}
            CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d;
            FLUSH TABLE v WITH READ LOCK;
            {code}

            Leads to:

            {noformat:title=10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug)}
            Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
            Program terminated with signal SIGSEGV, Segmentation fault.
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=
                0x152928000db8, all_tables=<optimized out>)
                at /test/10.6_dbg/sql/table.h:2755
            2755 bool is_view() const { return (derived_type & DTYPE_VIEW); }
            [Current thread is 1 (Thread 0x152964d70700 (LWP 1650774))]
            (gdb) bt
            #0 0x0000555e54592a4e in flush_tables_with_read_lock (thd=thd@entry=0x152928000db8, all_tables=<optimized out>) at /test/10.6_dbg/sql/table.h:2755
            #1 0x0000555e543fe6f3 in mysql_execute_command (thd=thd@entry=0x152928000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397
            #2 0x0000555e543e6890 in mysql_parse (thd=thd@entry=0x152928000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x152964d6f400) at /test/10.6_dbg/sql/sql_parse.cc:8016
            #3 0x0000555e543f53fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x152928000db8, packet=packet@entry=0x15292800b769 "FLUSH TABLE v WITH READ LOCK", packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340
            #4 0x0000555e543f87da in do_command (thd=0x152928000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406
            #5 0x0000555e5455cc8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x555e5867f418, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410
            #6 0x0000555e5455d293 in handle_one_connection (arg=arg@entry=0x555e5867f418) at /test/10.6_dbg/sql/sql_connect.cc:1312
            #7 0x0000555e54a0b166 in pfs_spawn_thread (arg=0x555e58567d08) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
            #8 0x000015297a0f8609 in start_thread (arg=<optimized out>) at pthread_create.c:477
            #9 0x0000152979ce7293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
            {noformat}
            {noformat:title=10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Optimized)}
            Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-opt/bin/mysqld --no-defaults --core-'.
            Program terminated with signal SIGSEGV, Segmentation fault.
            #0 0x00005637f4fe191d in flush_tables_with_read_lock (thd=thd@entry=
                0x1527f0000c58, all_tables=<optimized out>)
                at /test/10.6_opt/sql/table.h:2755
            2755 bool is_view() const { return (derived_type & DTYPE_VIEW); }
            [Current thread is 1 (Thread 0x152828c84700 (LWP 2224119))]
            (gdb) bt
            #0 0x00005637f4fe191d in flush_tables_with_read_lock (thd=thd@entry=0x1527f0000c58, all_tables=<optimized out>) at /test/10.6_opt/sql/table.h:2755
            #1 0x00005637f4eba49c in mysql_execute_command (thd=0x1527f0000c58) at /test/10.6_opt/sql/sql_parse.cc:5397
            #2 0x00005637f4ea73f4 in mysql_parse (thd=0x1527f0000c58, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /test/10.6_opt/sql/sql_parse.cc:8016
            #3 0x00005637f4eb3295 in dispatch_command (command=COM_QUERY, thd=0x1527f0000c58, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /test/10.6_opt/sql/sql_class.h:1340
            #4 0x00005637f4eb51f7 in do_command (thd=0x1527f0000c58, blocking=blocking@entry=true) at /test/10.6_opt/sql/sql_parse.cc:1406
            #5 0x00005637f4fc3057 in do_handle_one_connection (connect=<optimized out>, put_in_cache=true) at /test/10.6_opt/sql/sql_connect.cc:1410
            #6 0x00005637f4fc33bd in handle_one_connection (arg=arg@entry=0x5637f7b26f68) at /test/10.6_opt/sql/sql_connect.cc:1312
            #7 0x00005637f534c8f8 in pfs_spawn_thread (arg=0x5637f7ad58c8) at /test/10.6_opt/storage/perfschema/pfs.cc:2201
            #8 0x000015283f039609 in start_thread (arg=<optimized out>) at pthread_create.c:477
            #9 0x000015283ec28293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
            {noformat}

            Bug confirmed present in:
            MariaDB: 10.6.2 (dbg), 10.6.2 (opt)

            Bug (or feature/syntax) confirmed not present in:
            MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt)
            MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)
            Roel Roel Van de Paar made changes -
            Summary SIGSEGV in flush_tables_with_read_lock on FTWRL SIGSEGV in flush_tables_with_read_lock on FTWRL or FTFE
            Roel Roel Van de Paar added a comment -

            Secondary testcase with FOR EXPORT:

            CREATE VIEW v1 AS SELECT 1 FROM (SELECT 1) as d;
            		 
            FLUSH TABLES v1 FOR EXPORT;

            Leads to:

            10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug)

            		 
            Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
            		 
            Program terminated with signal SIGSEGV, Segmentation fault.
            		 
            #0  0x0000561d849669d4 in flush_tables_with_read_lock (thd=thd@entry=
            		 
                0x153d50000db8, all_tables=0x153d50014080)
            		 
                at /test/10.6_dbg/sql/table.h:2755
            		 
            2755	  bool is_view() const { return (derived_type & DTYPE_VIEW); }
            		 
            [Current thread is 1 (Thread 0x153d984ad700 (LWP 2820678))]
            		 
            (gdb) bt
            		 
            #0  0x0000561d849669d4 in flush_tables_with_read_lock (thd=thd@entry=0x153d50000db8, all_tables=0x153d50014080) at /test/10.6_dbg/sql/table.h:2755
            		 
            #1  0x0000561d847d26f3 in mysql_execute_command (thd=thd@entry=0x153d50000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397
            		 
            #2  0x0000561d847ba890 in mysql_parse (thd=thd@entry=0x153d50000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x153d984ac400) at /test/10.6_dbg/sql/sql_parse.cc:8016
            		 
            #3  0x0000561d847c93fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x153d50000db8, packet=packet@entry=0x153d5000b769 "FLUSH TABLES v1 FOR EXPORT", packet_length=packet_length@entry=26, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340
            		 
            #4  0x0000561d847cc7da in do_command (thd=0x153d50000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406
            		 
            #5  0x0000561d84930c8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x561d88092338, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410
            		 
            #6  0x0000561d84931293 in handle_one_connection (arg=arg@entry=0x561d88092338) at /test/10.6_dbg/sql/sql_connect.cc:1312
            		 
            #7  0x0000561d84ddf166 in pfs_spawn_thread (arg=0x561d87f7acf8) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
            		 
            #8  0x0000153d9c579609 in start_thread (arg=<optimized out>) at pthread_create.c:477
            		 
            #9  0x0000153d9c168293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

            Bug confirmed present in:
            MariaDB: 10.6.2 (dbg), 10.6.2 (opt)

            Bug (or feature/syntax) confirmed not present in:
            MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt)
            MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)

            Roel Roel Van de Paar added a comment - Secondary testcase with FOR EXPORT : CREATE VIEW v1 AS SELECT 1 FROM ( SELECT 1) as d; FLUSH TABLES v1 FOR EXPORT; Leads to: 10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug) Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x0000561d849669d4 in flush_tables_with_read_lock (thd=thd@entry= 0x153d50000db8, all_tables=0x153d50014080) at /test/10.6_dbg/sql/table.h:2755 2755 bool is_view() const { return (derived_type & DTYPE_VIEW); } [Current thread is 1 (Thread 0x153d984ad700 (LWP 2820678))] (gdb) bt #0 0x0000561d849669d4 in flush_tables_with_read_lock (thd=thd@entry=0x153d50000db8, all_tables=0x153d50014080) at /test/10.6_dbg/sql/table.h:2755 #1 0x0000561d847d26f3 in mysql_execute_command (thd=thd@entry=0x153d50000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397 #2 0x0000561d847ba890 in mysql_parse (thd=thd@entry=0x153d50000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x153d984ac400) at /test/10.6_dbg/sql/sql_parse.cc:8016 #3 0x0000561d847c93fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x153d50000db8, packet=packet@entry=0x153d5000b769 "FLUSH TABLES v1 FOR EXPORT", packet_length=packet_length@entry=26, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340 #4 0x0000561d847cc7da in do_command (thd=0x153d50000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406 #5 0x0000561d84930c8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x561d88092338, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410 #6 0x0000561d84931293 in handle_one_connection (arg=arg@entry=0x561d88092338) at /test/10.6_dbg/sql/sql_connect.cc:1312 #7 0x0000561d84ddf166 in pfs_spawn_thread (arg=0x561d87f7acf8) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201 #8 0x0000153d9c579609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #9 0x0000153d9c168293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Bug confirmed present in: MariaDB: 10.6.2 (dbg), 10.6.2 (opt) Bug (or feature/syntax) confirmed not present in: MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt) MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)
            Roel Roel Van de Paar added a comment -

            It looks like a check is missing; 10.5 Output to compare:

            10.5.10 dd07cfcecd4aabb0aeae9c4f5087f82b4080c1bd (Debug)

            		 
            10.5.10-dbg>CREATE VIEW v1 AS SELECT 1 FROM (SELECT 1) as d;
            		 
            Query OK, 0 rows affected (0.007 sec)
            		 
             
            		 
            10.5.10-dbg>FLUSH TABLES v1 FOR EXPORT;
            		 
            ERROR 1347 (HY000): 'test.v1' is not of type 'BASE TABLE'
            		 
             
            		 
            10.5.10-dbg>CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d;
            		 
            Query OK, 0 rows affected (0.003 sec)
            		 
             
            		 
            10.5.10-dbg>FLUSH TABLE v WITH READ LOCK;
            		 
            ERROR 1347 (HY000): 'test.v' is not of type 'BASE TABLE'

            Roel Roel Van de Paar added a comment - It looks like a check is missing; 10.5 Output to compare: 10.5.10 dd07cfcecd4aabb0aeae9c4f5087f82b4080c1bd (Debug) 10.5.10-dbg>CREATE VIEW v1 AS SELECT 1 FROM (SELECT 1) as d; Query OK, 0 rows affected (0.007 sec)   10.5.10-dbg>FLUSH TABLES v1 FOR EXPORT; ERROR 1347 (HY000): 'test.v1' is not of type 'BASE TABLE'   10.5.10-dbg>CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d; Query OK, 0 rows affected (0.003 sec)   10.5.10-dbg>FLUSH TABLE v WITH READ LOCK; ERROR 1347 (HY000): 'test.v' is not of type 'BASE TABLE'
            Roel Roel Van de Paar made changes -
            Summary SIGSEGV in flush_tables_with_read_lock on FTWRL or FTFE SIGSEGV in flush_tables_with_read_lock on FTWRL or FTFE | SIGSEGV in ha_maria::extra
            Roel Roel Van de Paar added a comment -

            Different stack with this similar testcase:

            CREATE VIEW v(c) AS SELECT column_name FROM information_schema.columns;
            		 
            FLUSH TABLE v WITH READ LOCK;

            Leads to:

            10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug)

            		 
            Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'.
            		 
            Program terminated with signal SIGSEGV, Segmentation fault.
            		 
            #0  0x0000556f5d2d5c78 in ha_maria::extra (this=0x1484b0021790, 
                operation=HA_EXTRA_FLUSH) at /test/10.6_dbg/storage/maria/ha_maria.cc:2671
            		 
            2671	  if (operation == HA_EXTRA_WRITE_CACHE && has_long_unique())
            		 
            [Current thread is 1 (Thread 0x1484e0f56700 (LWP 1825731))]
            		 
            (gdb) bt
            		 
            #0  0x0000556f5d2d5c78 in ha_maria::extra (this=0x1484b0021790, operation=HA_EXTRA_FLUSH) at /test/10.6_dbg/storage/maria/ha_maria.cc:2671
            		 
            #1  0x0000556f5cf1ba60 in flush_tables_with_read_lock (thd=thd@entry=0x1484b0000db8, all_tables=<optimized out>) at /test/10.6_dbg/sql/table.h:2755
            		 
            #2  0x0000556f5cd876f3 in mysql_execute_command (thd=thd@entry=0x1484b0000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397
            		 
            #3  0x0000556f5cd6f890 in mysql_parse (thd=thd@entry=0x1484b0000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x1484e0f55400) at /test/10.6_dbg/sql/sql_parse.cc:8016
            		 
            #4  0x0000556f5cd7e3fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x1484b0000db8, packet=packet@entry=0x1484b000b769 "FLUSH TABLE v WITH READ LOCK", packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340
            		 
            #5  0x0000556f5cd817da in do_command (thd=0x1484b0000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406
            		 
            #6  0x0000556f5cee5c8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x556f600da408, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410
            		 
            #7  0x0000556f5cee6293 in handle_one_connection (arg=arg@entry=0x556f600da408) at /test/10.6_dbg/sql/sql_connect.cc:1312
            		 
            #8  0x0000556f5d394166 in pfs_spawn_thread (arg=0x556f5ffc2aa8) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201
            		 
            #9  0x00001484f62ec609 in start_thread (arg=<optimized out>) at pthread_create.c:477
            		 
            #10 0x00001484f5edb293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

            Bug confirmed present in:
            MariaDB: 10.6.2 (dbg), 10.6.2 (opt)

            Bug (or feature/syntax) confirmed not present in:
            MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt)
            MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)

            Roel Roel Van de Paar added a comment - Different stack with this similar testcase: CREATE VIEW v(c) AS SELECT column_name FROM information_schema.columns; FLUSH TABLE v WITH READ LOCK; Leads to: 10.6.2 6c39eaeb126328e7813b146ecf652d51e4508981 (Debug) Core was generated by `/test/MD120621-mariadb-10.6.2-linux-x86_64-dbg/bin/mysqld --no-defaults --core-'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x0000556f5d2d5c78 in ha_maria::extra (this=0x1484b0021790, operation=HA_EXTRA_FLUSH) at /test/10.6_dbg/storage/maria/ha_maria.cc:2671 2671 if (operation == HA_EXTRA_WRITE_CACHE && has_long_unique()) [Current thread is 1 (Thread 0x1484e0f56700 (LWP 1825731))] (gdb) bt #0 0x0000556f5d2d5c78 in ha_maria::extra (this=0x1484b0021790, operation=HA_EXTRA_FLUSH) at /test/10.6_dbg/storage/maria/ha_maria.cc:2671 #1 0x0000556f5cf1ba60 in flush_tables_with_read_lock (thd=thd@entry=0x1484b0000db8, all_tables=<optimized out>) at /test/10.6_dbg/sql/table.h:2755 #2 0x0000556f5cd876f3 in mysql_execute_command (thd=thd@entry=0x1484b0000db8) at /test/10.6_dbg/sql/sql_parse.cc:5397 #3 0x0000556f5cd6f890 in mysql_parse (thd=thd@entry=0x1484b0000db8, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x1484e0f55400) at /test/10.6_dbg/sql/sql_parse.cc:8016 #4 0x0000556f5cd7e3fa in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x1484b0000db8, packet=packet@entry=0x1484b000b769 "FLUSH TABLE v WITH READ LOCK", packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_class.h:1340 #5 0x0000556f5cd817da in do_command (thd=0x1484b0000db8, blocking=blocking@entry=true) at /test/10.6_dbg/sql/sql_parse.cc:1406 #6 0x0000556f5cee5c8e in do_handle_one_connection (connect=<optimized out>, connect@entry=0x556f600da408, put_in_cache=put_in_cache@entry=true) at /test/10.6_dbg/sql/sql_connect.cc:1410 #7 0x0000556f5cee6293 in handle_one_connection (arg=arg@entry=0x556f600da408) at /test/10.6_dbg/sql/sql_connect.cc:1312 #8 0x0000556f5d394166 in pfs_spawn_thread (arg=0x556f5ffc2aa8) at /test/10.6_dbg/storage/perfschema/pfs.cc:2201 #9 0x00001484f62ec609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #10 0x00001484f5edb293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Bug confirmed present in: MariaDB: 10.6.2 (dbg), 10.6.2 (opt) Bug (or feature/syntax) confirmed not present in: MariaDB: 10.2.38 (dbg), 10.2.38 (opt), 10.3.29 (dbg), 10.3.29 (opt), 10.4.19 (dbg), 10.4.19 (opt), 10.5.10 (dbg), 10.5.10 (opt) MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.51 (dbg), 5.6.51 (opt), 5.7.34 (dbg), 5.7.34 (opt), 8.0.24 (dbg), 8.0.24 (opt)
            serg Sergei Golubchik made changes -
            Priority Blocker [ 1 ] Critical [ 2 ]
            elenst Elena Stepanova made changes -
            Priority Critical [ 2 ] Blocker [ 1 ]
            jplindst Jan Lindström (Inactive) made changes -
            Assignee Alexey Botchkov [ holyfoot ] Jan Lindström [ jplindst ]
            jplindst Jan Lindström (Inactive) made changes -
            Status Open [ 1 ] In Progress [ 3 ]
            jplindst Jan Lindström (Inactive) added a comment -

            https://github.com/MariaDB/server/commit/3573429c87956f1f51162ba08280ab009d204412

            jplindst Jan Lindström (Inactive) added a comment - https://github.com/MariaDB/server/commit/3573429c87956f1f51162ba08280ab009d204412
            jplindst Jan Lindström (Inactive) made changes -
            Assignee Jan Lindström [ jplindst ] Oleksandr Byelkin [ sanja ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            sanja Oleksandr Byelkin added a comment -

            https://github.com/MariaDB/server/commit/b29ec61724dcac751592b7c83d33d2d600b6bc2e

            sanja Oleksandr Byelkin added a comment - https://github.com/MariaDB/server/commit/b29ec61724dcac751592b7c83d33d2d600b6bc2e
            sanja Oleksandr Byelkin made changes -
            Assignee Oleksandr Byelkin [ sanja ] Sergei Golubchik [ serg ]
            serg Sergei Golubchik made changes -
            Assignee Sergei Golubchik [ serg ] Oleksandr Byelkin [ sanja ]
            Status In Review [ 10002 ] Stalled [ 10000 ]
            serg Sergei Golubchik made changes -
            Assignee Oleksandr Byelkin [ sanja ] Sergei Golubchik [ serg ]
            serg Sergei Golubchik made changes -
            Fix Version/s 10.6.3 [ 25904 ]
            Fix Version/s 10.6 [ 24028 ]
            Resolution Fixed [ 1 ]
            Status Stalled [ 10000 ] Closed [ 6 ]
            Roel Roel Van de Paar made changes -
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 122650 ] MariaDB v4 [ 159389 ]

            People

              serg Sergei Golubchik
              Roel Roel Van de Paar
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                Created:
                Updated:
                Resolved:

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