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  1. MariaDB Server
  2. MDEV-26403

A SEGV in Optimizer Component

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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 AS SELECT STRCMP ( 'x' , 'x' ) AS v1 ORDER BY ( v1 + v1 LIKE 'x' AND v1 BETWEEN 'x' AND 53 ) ;
      REPLACE INTO v0 SELECT * FROM v0 ;
      CHECK TABLE v0 EXTENDED ;
      SELECT * FROM v0 GROUP BY v1 HAVING v1 = 'x' IN ( v1 IS NULL AND 'x' = 0 , 10 , -1 ) ;
      OPTIMIZE TABLE v0 , v0 ;
      LOCK TABLE v0 WRITE , v0 WRITE ;

      Log:
      2021-08-16 15:06:2021-08-16 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 15:05:51 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
      2021-08-16 15:05:51 0 [Note] InnoDB: Number of pools: 1
      2021-08-16 15:05:51 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions
      2021-08-16 15:05:51 0 [Note] mysqld: O_TMPFILE is not supported on /tmp (disabling future attempts)
      2021-08-16 15:05:51 0 [Note] InnoDB: Using liburing
      2021-08-16 15:05:51 0 [Note] InnoDB: Initializing buffer pool, total size = 134217728, chunk size = 134217728
      2021-08-16 15:05:51 0 [Note] InnoDB: Completed initialization of buffer pool
      2021-08-16 15:06:00 0 [Note] InnoDB: 128 rollback segments are active.
      2021-08-16 15:06:00 0 [Note] InnoDB: Creating shared tablespace for00 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
      2021-08-16 15:06:00 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
      2021-08-16 15:06:00 0 [Note] InnoDB: 10.7.0 started; log sequence number 42173; transaction id 14
      2021-08-16 15:06:00 0 [Note] Plugin 'FEEDBACK' is disabled.
      2021-08-16 15:06:00 0 [Note] InnoDB: Loading buffer pool(s) from /home/fuboat/mariadb-tmp/3/ib_buffer_pool
      2021-08-16 15:06:01 0 [Note] Server socket created on IP: '0.0.0.0'.
      2021-08-16 15:06:01 0 [Note] Server socket created on IP: '::'.
      2021-08-16 15:06:01 0 [Note] InnoDB: Buffer pool(s) load completed at 210816 15:06:01
      2021-08-16 15:06:04 0 [Note] /usr/local/mysql/bin//mysqld: ready for connections.
      Version: '10.7.0-MariaDB' socket: '/tmp/3.socket' port: 10003 Source distribution
      210816 15:06:10 [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: 0x62b0000af218
      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 = 0x7fa746f74850 thread_stack 0x5fc00
      sanitizer_common/sanitizer_common_interceptors.inc:4203(__interceptor_backtrace.part.0)[0x7fa766820c3e]
      mysys/stacktrace.c:213(my_print_stacktrace)[0x55dae2370747]
      sql/signal_handler.cc:222(handle_fatal_signal)[0x55dae1338120]
      sigaction.c:0(__restore_rt)[0x7fa76620a870]
      sql/item.cc:3442(Item_field::used_tables() const)[0x55dae13cf704]
      sql/sql_select.cc:14445(remove_const(JOIN*, st_order*, Item*, bool, bool*))[0x55dae0ce110f]
      sql/sql_select.cc:2432(JOIN::optimize_inner())[0x55dae0d68280]
      sql/sql_select.cc:1811(JOIN::optimize())[0x55dae0d697b1]
      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*))[0x55dae0d69a0e]
      sql/sql_select.cc:545(handle_select(THD*, LEX*, select_result*, unsigned long))[0x55dae0d6b655]
      sql/sql_parse.cc:6256(execute_sqlcom_select(THD*, TABLE_LIST*))[0x55dae0baed7d]
      sql/sql_parse.cc:3946(mysql_execute_command(THD*, bool))[0x55dae0bd8421]
      sql/sql_parse.cc:8047(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x55dae0bdd5a1]
      sql/sql_parse.cc:1898(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool))[0x55dae0be360c]
      sql/sql_parse.cc:1406(do_command(THD*, bool))[0x55dae0be873d]
      sql/sql_connect.cc:1418(do_handle_one_connection(CONNECT*, bool))[0x55dae0fa3e57]
      sql/sql_connect.cc:1312(handle_one_connection)[0x55dae0fa433d]
      perfschema/pfs.cc:2204(pfs_spawn_thread)[0x55dae1a34c2c]
      pthread_create.c:0(start_thread)[0x7fa766200259]
      :0(_GI__clone)[0x7fa765dab5e3]

      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 v1 = 'x' IN ( v1 IS NULL AND 'x' = 0 , 10 , -1 )

      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/3
      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

      Coredump

      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 1386618]
      [New LWP 1349958]
      [New LWP 1382444]
      [New LWP 1349935]
      [New LWP 1382850]
      [New LWP 1349963]
      [New LWP 1349956]
      [New LWP 1382440]
      [New LWP 1382852]
      [New LWP 1386542]
      [New LWP 1382851]
      [New LWP 1382890]
      [New LWP 1349932]
      [New LWP 1382853]
      [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 10003 --datadir=/home/fuboat/mariadb-tmp/3'.
      Program terminated with signal SIGSEGV, Segmentation fault.
      #0 0x00007fa766207808 in pthread_kill () from /usr/lib/libpthread.so.0
      [Current thread is 1 (Thread 0x7fa746f75240 (LWP 1386618))]
      (gdb) (gdb) #0 0x00007fa766207808 in pthread_kill () from /usr/lib/libpthread.so.0
      #1 0x000055dae133806b in handle_fatal_signal (sig=<optimized out>) at /experiment/mariadb-server/sql/signal_handler.cc:344
      #2 <signal handler called>
      #3 0x000055dae13cf704 in Item_field::used_tables (this=0x629000089e68) at /experiment/mariadb-server/sql/item.cc:3442
      #4 0x000055dae0ce110f in update_depend_map_for_order (order=0x6290000881a0, join=0x6290000898a0) at /experiment/mariadb-server/sql/sql_select.cc:14445
      #5 remove_const (join=0x6290000898a0, first_order=<optimized out>, cond=<optimized out>, change_list=<optimized out>, simple_order=0x629000089bac) at /experiment/mariadb-server/sql/sql_select.cc:14570
      #6 0x000055dae0d68280 in JOIN::optimize_inner (this=0x6290000898a0) at /experiment/mariadb-server/sql/sql_select.cc:2432
      #7 0x000055dae0d697b1 in JOIN::optimize (this=this@entry=0x6290000898a0) at /experiment/mariadb-server/sql/sql_select.cc:1809
      #8 0x000055dae0d69a0e in mysql_select (thd=0x62b0000af218, tables=<optimized out>, fields=..., conds=0x0, og_num=1, order=0x0, group=0x6290000881a0, having=0x629000088d50, proc_param=0x0, select_options=<optimized out>, result=0x629000089870, unit=0x62b0000b33c0, select_lex=0x629000087350)
      at /experiment/mariadb-server/sql/sql_select.cc:4977
      #9 0x000055dae0d6b655 in handle_select (thd=thd@entry=0x62b0000af218, lex=lex@entry=0x62b0000b32f8, result=result@entry=0x629000089870, setup_tables_done_option=setup_tables_done_option@entry=0) at /experiment/mariadb-server/sql/sql_select.cc:545
      #10 0x000055dae0baed7d in execute_sqlcom_select (thd=0x62b0000af218, all_tables=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:6256
      #11 0x000055dae0bd8421 in mysql_execute_command (thd=0x62b0000af218, is_called_from_prepared_stmt=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:3946
      #12 0x000055dae0bdd5a1 in mysql_parse (thd=0x62b0000af218, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:8030
      #13 0x000055dae0be360c in dispatch_command (command=<optimized out>, thd=0x62b0000af218, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /experiment/mariadb-server/sql/sql_parse.cc:1896
      #14 0x000055dae0be873d in do_command (thd=0x62b0000af218, blocking=blocking@entry=true) at /experiment/mariadb-server/sql/sql_parse.cc:1404
      #15 0x000055dae0fa3e57 in do_handle_one_connection (connect=<optimized out>, put_in_cache=<optimized out>) at /experiment/mariadb-server/sql/sql_connect.cc:1418
      #16 0x000055dae0fa433d in handle_one_connection (arg=arg@entry=0x6080000023b8) at /experiment/mariadb-server/sql/sql_connect.cc:1312
      #17 0x000055dae1a34c2c in pfs_spawn_thread (arg=0x617000005b98) at /experiment/mariadb-server/storage/perfschema/pfs.cc:2201
      #18 0x00007fa766200259 in start_thread () from /usr/lib/libpthread.so.0
      #19 0x00007fa765dab5e3 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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