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  1. MariaDB Server
  2. MDEV-40401

Signal 11 seen with window function

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Details

    • Bug
    • Status: Open (View Workflow)
    • Critical
    • Resolution: Unresolved
    • None
    • 13.1
    • Optimizer
    • None
    • Can result in hang or crash
    • Q3/2026 Server Maintenance

    Description

      Version used:

      -------------------------
      Release build
      branch: MDEV-37713
      commit: 308bd4f2c455f82e4044707282444d1a85d0cbe8

      How to repro:

      SELECT ROW_NUMBER() OVER () OR TRUE;
      

      Stack trace:

      #0  __pthread_kill_implementation (no_tid=0, signo=11, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
      #1  __pthread_kill_internal (signo=11, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
      #2  __GI___pthread_kill (threadid=<optimized out>, signo=11) at ./nptl/pthread_kill.c:89
      #3  handle_fatal_signal ()
      #4  <signal handler called>
      #5  Item_field::Item_field(THD*, Field*) ()
      #6  Window_funcs_sort::setup(THD*, SQL_SELECT*, List_iterator<Item_window_func>&, st_join_table*) ()
      #7  Window_funcs_computation::setup(THD*, List<Item_window_func>*, st_join_table*) ()
      #8  JOIN::make_aggr_tables_info() ()
      #9  JOIN::optimize_stage2() ()
      #10 JOIN::optimize_inner() ()
      #11 JOIN::optimize() ()
      #12 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*) ()
      #13 handle_select(THD*, LEX*, select_result*, unsigned long long) ()
      #14 execute_sqlcom_select(THD*, TABLE_LIST*) ()
      #15 mysql_execute_command(THD*, bool) ()
      #16 mysql_parse(THD*, char*, unsigned int, Parser_state*) ()
      #17 dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) ()
      #18 do_command(THD*, bool) ()
      #19 do_handle_one_connection(CONNECT*, bool) ()
      #20 handle_one_connection ()
      #21 pfs_spawn_thread ()
      #22 start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
      #23 clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
      

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              oleg.smirnov Oleg Smirnov
              mariadb-pavithrapandith Pavithra Pandith
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