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  1. MariaDB Server
  2. MDEV-26418

A SEGV in Optimizer

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 10.7
    • Fix Version/s: N/A
    • Component/s: Optimizer
    • Labels:
      None
    • Environment:
      Linux version 5.13.0-1-MANJARO (builduser@LEGION) (gcc (GCC) 11.1.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP PREEMPT Mon Jun 7 06:16:10 UTC 2021 x86_64

      Description

      PoC:

      CREATE TABLE v0 ( v1 INT NOT NULL PRIMARY KEY ) ;
       REPLACE INTO v0 VALUES ( 20 ) ;
       SELECT * FROM v0 GROUP BY v1 HAVING NOT v1 ;
       SELECT v1 , RIGHT ( polygonfromtext ( 'x' , TRUE ) , 74310859.000000 ) / 38350594.000000 * 18947588.000000 v1 FROM v0 ;
       SET ROLE v0 ;
      

      Log and Coredump:

      2021-08-16 14:41:38 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
      2021-08-16 14:41:38 0 [Note] InnoDB: Number of pools: 1
      2021-08-16 14:41:38 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions
      2021-08-16 14:41:38 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)
      2021-08-16 14:41:38 0 [Note] InnoDB: Using liburing
      2021-08-16 14:41:38 0 [Note] InnoDB: Initializing buffer pool, total size = 134217728, chunk size = 134217728
      2021-08-16 14:41:38 0 [Note] InnoDB: Completed initialization of buffer pool
      2021-08-16 14:41:38 0 [Note] InnoDB: 128 rollback segments are active.
      2021-08-16 14:41:38 0 [Note] InnoDB: Creating shared tablespace for temporary tables
      2021-08-16 14:41:38 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
      2021-08-16 14:41:38 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
      2021-08-16 14:41:38 0 [Note] InnoDB: 10.7.0 started; log sequence number 42161; transaction id 14
      2021-08-16 14:41:38 0 [Note] InnoDB: Loading buffer pool(s) from /home/fuboat/mariadb-tmp/mysql-default-data/ib_buffer_pool
      2021-08-16 14:41:38 0 [Note] Plugin 'FEEDBACK' is disabled.
      2021-08-16 14:41:38 0 [Note] InnoDB: Buffer pool(s) load completed at 210816 14:41:38
      2021-08-16 14:41:38 0 [Note] Server socket created on IP: '0.0.0.0'.
      2021-08-16 14:41:38 0 [Note] Server socket created on IP: '::'.
      2021-08-16 14:41:38 0 [Note] /usr/local/mysql/bin//mysqld: ready for connections.
      Version: '10.7.0-MariaDB'  socket: '/tmp/0.socket'  port: 3306  Source distribution
      2021-08-16 14:41:39 0 [Note] /usr/local/mysql/bin//mysqld (initiated by: root[root] @ localhost []): Normal shutdown
      2021-08-16 14:41:39 0 [Note] InnoDB: FTS optimize thread exiting.
      2021-08-16 14:41:39 0 [Note] InnoDB: Starting shutdown...
      2021-08-16 14:41:39 0 [Note] InnoDB: Dumping buffer pool(s) to /home/fuboat/mariadb-tmp/mysql-default-data/ib_buffer_pool
      2021-08-16 14:41:39 0 [Note] InnoDB: Buffer pool(s) dump completed at 210816 14:41:39
      2021-08-16 14:41:39 0 [Note] InnoDB: Removed temporary tablespace data file: "./ibtmp1"
      2021-08-16 14:41:39 0 [Note] InnoDB: Shutdown completed; log sequence number 42173; transaction id 15
      2021-08-16 14:41:39 0 [Note] /usr/local/mysql/bin//mysqld: Shutdown complete
       
      2021-08-16 14:44:28 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
      2021-08-16 14:44:28 0 [Note] InnoDB: Number of pools: 1
      2021-08-16 14:44:28 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions
      2021-08-16 14:44:28 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)
      2021-08-16 14:44:28 0 [Note] InnoDB: Using liburing
      2021-08-16 14:44:28 0 [Note] InnoDB: Initializing buffer pool, total size = 134217728, chunk size = 134217728
      2021-08-16 14:44:28 0 [Note] InnoDB: Completed initialization of buffer pool
      2021-08-16 14:44:40 0 [Note] InnoDB: 128 rollback segments are active.
      2021-08-16 14:44:40 0 [Note] InnoDB: Creating shared tablespace for temporary tables
      2021-08-16 14:44:40 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
      2021-08-16 14:44:40 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
      2021-08-16 14:44:40 0 [Note] InnoDB: 10.7.0 started; log sequence number 42173; transaction id 14
      2021-08-16 14:44:40 0 [Note] InnoDB: Loading buffer pool(s) from /home/fuboat/mariadb-tmp/14/ib_buffer_pool
      2021-08-16 14:44:40 0 [Note] Plugin 'FEEDBACK' is disabled.
      2021-08-16 14:44:40 0 [Note] Server socket created on IP: '0.0.0.0'.
      2021-08-16 14:44:40 0 [Note] Server socket created on IP: '::'.
      2021-08-16 14:44:40 0 [Note] InnoDB: Buffer pool(s) load completed at 210816 14:44:40
      2021-08-16 14:44:41 0 [Note] /usr/local/mysql/bin//mysqld: ready for connections.
      Version: '10.7.0-MariaDB'  socket: '/tmp/14.socket'  port: 10014  Source distribution
      210816 14:44:41 [ERROR] mysqld got signal 11 ;
      This could be because you hit a bug. It is also possible that this binary
      or one of the libraries it was linked against is corrupt, improperly built,
      or misconfigured. This error can also be caused by malfunctioning hardware.
       
      To report this bug, see https://mariadb.com/kb/en/reporting-bugs
       
      We will try our best to scrape up some info that will hopefully help
      diagnose the problem, but since we have already crashed, 
      something is definitely wrong and this may fail.
       
      Server version: 10.7.0-MariaDB
      key_buffer_size=134217728
      read_buffer_size=131072
      max_used_connections=1
      max_threads=153
      thread_count=1
      It is possible that mysqld could use up to 
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467956 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x62b0000bd218
      Attempting backtrace. You can use the following information to find out
      where mysqld died. If you see no messages after this, something went
      terribly wrong...
      stack_bottom = 0x7fa0dcfde850 thread_stack 0x5fc00
      sanitizer_common/sanitizer_common_interceptors.inc:4203(__interceptor_backtrace.part.0)[0x7fa102210c3e]
      mysys/stacktrace.c:213(my_print_stacktrace)[0x55e0157cb747]
      sql/signal_handler.cc:222(handle_fatal_signal)[0x55e014793120]
      sigaction.c:0(__restore_rt)[0x7fa101bfa870]
      sql/item_cmpfunc.cc:6449(Item_func_not::fix_fields(THD*, Item**))[0x55e01488282e]
      sql/sql_lex.cc:11130(st_select_lex::pushdown_from_having_into_where(THD*, Item*))[0x55e013fde17a]
      sql/sql_select.cc:2223(JOIN::optimize_inner())[0x55e0141c16ca]
      sql/sql_select.cc:1811(JOIN::optimize())[0x55e0141c47b1]
      sql/sql_select.cc:4977(mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x55e0141c4a0e]
      sql/sql_select.cc:545(handle_select(THD*, LEX*, select_result*, unsigned long))[0x55e0141c6655]
      sql/sql_parse.cc:6256(execute_sqlcom_select(THD*, TABLE_LIST*))[0x55e014009d7d]
      sql/sql_parse.cc:3946(mysql_execute_command(THD*, bool))[0x55e014033421]
      sql/sql_parse.cc:8047(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x55e0140385a1]
      sql/sql_parse.cc:1898(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool))[0x55e01403e60c]
      sql/sql_parse.cc:1406(do_command(THD*, bool))[0x55e01404373d]
      sql/sql_connect.cc:1418(do_handle_one_connection(CONNECT*, bool))[0x55e0143fee57]
      sql/sql_connect.cc:1312(handle_one_connection)[0x55e0143ff33d]
      perfschema/pfs.cc:2204(pfs_spawn_thread)[0x55e014e8fc2c]
      pthread_create.c:0(start_thread)[0x7fa101bf0259]
      :0(__GI___clone)[0x7fa10179b5e3]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x629000087238): SELECT * FROM v0 GROUP BY v1 HAVING NOT v1
       
      Connection ID (thread ID): 4
      Status: NOT_KILLED
       
      Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off
       
      The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains
      information that should help you find out what is causing the crash.
      Writing a core file...
      Working directory at /home/fuboat/mariadb-tmp/14
      Resource Limits:
      Limit                     Soft Limit           Hard Limit           Units     
      Max cpu time              unlimited            unlimited            seconds   
      Max file size             unlimited            unlimited            bytes     
      Max data size             unlimited            unlimited            bytes     
      Max stack size            8388608              unlimited            bytes     
      Max core file size        unlimited            unlimited            bytes     
      Max resident set          unlimited            unlimited            bytes     
      Max processes             61608                61608                processes 
      Max open files            524288               524288               files     
      Max locked memory         65536                65536                bytes     
      Max address space         unlimited            unlimited            bytes     
      Max file locks            unlimited            unlimited            locks     
      Max pending signals       61608                61608                signals   
      Max msgqueue size         819200               819200               bytes     
      Max nice priority         0                    0                    
      Max realtime priority     0                    0                    
      Max realtime timeout      unlimited            unlimited            us        
      Core pattern: core
      

       
      GNU gdb (GDB) 10.2
      Copyright (C) 2021 Free Software Foundation, Inc.
      License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.
      Type "show copying" and "show warranty" for details.
      This GDB was configured as "x86_64-pc-linux-gnu".
      Type "show configuration" for configuration details.
      For bug reporting instructions, please see:
      <https://www.gnu.org/software/gdb/bugs/>.
      Find the GDB manual and other documentation resources online at:
          <http://www.gnu.org/software/gdb/documentation/>.
       
      For help, type "help".
      Type "apropos word" to search for commands related to "word"...
      Reading symbols from /usr/local/mysql/bin//mysqld...
      [New LWP 974463]
      [New LWP 917732]
      [New LWP 917647]
      [New LWP 971318]
      [New LWP 971766]
      [New LWP 917706]
      [New LWP 971769]
      [New LWP 971767]
      [New LWP 917765]
      [New LWP 971768]
      [New LWP 971765]
      [New LWP 974327]
      [New LWP 971771]
      [New LWP 916036]
      [New LWP 971322]
      [Thread debugging using libthread_db enabled]
      Using host libthread_db library "/usr/lib/libthread_db.so.1".
      Core was generated by `/usr/local/mysql/bin//mysqld --port 10014 --datadir=/home/fuboat/mariadb-tmp/14'.
      Program terminated with signal SIGSEGV, Segmentation fault.
      #0  0x00007fa101bf7808 in pthread_kill () from /usr/lib/libpthread.so.0
      [Current thread is 1 (Thread 0x7fa0dcfdf240 (LWP 974463))]
      (gdb) (gdb) #0  0x00007fa101bf7808 in pthread_kill () from /usr/lib/libpthread.so.0
      #1  0x000055e01479306b in handle_fatal_signal (sig=<optimized out>) at /experiment/mariadb-server/sql/signal_handler.cc:344
      #2  <signal handler called>
      #3  0x000055e01488282e in Item_func_not::fix_fields (this=0x6290000882c8, thd=0x62b0000bd218, ref=<optimized out>) at /experiment/mariadb-server/sql/item_cmpfunc.cc:6449
      #4  0x000055e013fde17a in st_select_lex::pushdown_from_having_into_where (this=0x629000087300, thd=0x62b0000bd218, having=0x0) at /experiment/mariadb-server/sql/sql_lex.cc:11130
      #5  0x000055e0141c16ca in JOIN::optimize_inner (this=0x629000088ca0) at /experiment/mariadb-server/sql/sql_select.cc:2224
      #6  0x000055e0141c47b1 in JOIN::optimize (this=this@entry=0x629000088ca0) at /experiment/mariadb-server/sql/sql_select.cc:1809
      #7  0x000055e0141c4a0e in mysql_select (thd=0x62b0000bd218, tables=<optimized out>, fields=..., conds=0x0, og_num=1, order=0x0, group=0x629000088150, having=0x6290000882c8, proc_param=0x0, select_options=<optimized out>, result=0x629000088c70, unit=0x62b0000c13c0, select_lex=0x629000087300)
          at /experiment/mariadb-server/sql/sql_select.cc:4977
      #8  0x000055e0141c6655 in handle_select (thd=thd@entry=0x62b0000bd218, lex=lex@entry=0x62b0000c12f8, result=result@entry=0x629000088c70, setup_tables_done_option=setup_tables_done_option@entry=0) at /experiment/mariadb-server/sql/sql_select.cc:545
      #9  0x000055e014009d7d in execute_sqlcom_select (thd=0x62b0000bd218, all_tables=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:6256
      #10 0x000055e014033421 in mysql_execute_command (thd=0x62b0000bd218, is_called_from_prepared_stmt=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:3946
      #11 0x000055e0140385a1 in mysql_parse (thd=0x62b0000bd218, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:8030
      #12 0x000055e01403e60c in dispatch_command (command=<optimized out>, thd=0x62b0000bd218, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:1896
      #13 0x000055e01404373d in do_command (thd=0x62b0000bd218, blocking=blocking@entry=true) at /experiment/mariadb-server/sql/sql_parse.cc:1404
      #14 0x000055e0143fee57 in do_handle_one_connection (connect=<optimized out>, put_in_cache=<optimized out>) at /experiment/mariadb-server/sql/sql_connect.cc:1418
      #15 0x000055e0143ff33d in handle_one_connection (arg=arg@entry=0x6080000023b8) at /experiment/mariadb-server/sql/sql_connect.cc:1312
      #16 0x000055e014e8fc2c in pfs_spawn_thread (arg=0x617000005f18) at /experiment/mariadb-server/storage/perfschema/pfs.cc:2201
      #17 0x00007fa101bf0259 in start_thread () from /usr/lib/libpthread.so.0
      #18 0x00007fa10179b5e3 in clone () from /usr/lib/libc.so.6
      (gdb) quit
      
      

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              Assignee:
              Unassigned Unassigned
              Reporter:
              Zhiyong Zhiyong Wu
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