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  1. MariaDB Server
  2. MDEV-35284

Server crash or ASAN errors in mhnsw_read_next upon using vectors within transaction

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Duplicate
    • N/A
    • N/A
    • Vector search
    • None

    Description

      The test case is essentially this (it is just a template):

      create table t1 (a int primary key, v vector(96), vector(v)) engine=InnoDB;
      		 
      # insert 1000 rows into t1
      		 
      create table t2 (a int primary key, v vector(96), vector(v)) engine=InnoDB;
      		 
      # insert 30000 rows into t1
      		 
       
      		 
      START TRANSACTION;
      		 
      INSERT INTO t1 (v) VALUES (<one value>);
      		 
      INSERT INTO t2 (v) SELECT v FROM t2 tb1 ORDER BY VEC_DISTANCE_EUCLIDEAN(tb1.v, VEC_FROMTEXT('<vector in text form>')) LIMIT 10;

      The second insert is the one that crashes.

      On an ASAN build, it fails every time for me. On a non-ASAN build, It only fails half the time and with various stack traces.

      The data is from a benchmark. I couldn't replace it with random data in a limited amount of attempts, nor to reduce it significantly, so I'll provide the remaining part as is. Quite possibly a very small test can be created instead.

      042f9f92d08fce4cb1b0642eac73c7d16408608e ASAN

      		 
      ==1263937==ERROR: AddressSanitizer: heap-use-after-free on address 0x7f3db4e86570 at pc 0x565169f4163c bp 0x7f3db5ccb530 sp 0x7f3db5ccb528
      		 
      READ of size 8 at 0x7f3db4e86570 thread T10
      		 
          #0 0x565169f4163b in FVectorNode::gref_len() const /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:798
      		 
          #1 0x565169f42639 in FVectorNode::tref() const /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:800
      		 
          #2 0x565169f4e503 in mhnsw_read_next(TABLE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:1306
      		 
          #3 0x5651692d1d33 in join_hlindex_read_next /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:25190
      		 
          #4 0x565169297ced in READ_RECORD::read_record() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/records.h:77
      		 
          #5 0x565169297ced in sub_select(JOIN*, st_join_table*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:24061
      		 
          #6 0x56516934db1b in do_select /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:23555
      		 
          #7 0x56516934db1b in JOIN::exec_inner() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:5035
      		 
          #8 0x56516934f2f2 in JOIN::exec() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:4818
      		 
          #9 0x56516934747b in 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*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:5351
      		 
          #10 0x565169348f56 in handle_select(THD*, LEX*, select_result*, unsigned long long) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:633
      		 
          #11 0x565169188dca in mysql_execute_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:4650
      		 
          #12 0x56516918c2e1 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:7886
      		 
          #13 0x56516919468e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:1892
      		 
          #14 0x56516919990e in do_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:1405
      		 
          #15 0x5651695d227e in do_handle_one_connection(CONNECT*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_connect.cc:1448
      		 
          #16 0x5651695d2b8c in handle_one_connection /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_connect.cc:1350
      		 
          #17 0x56516a210057 in pfs_spawn_thread /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/storage/perfschema/pfs.cc:2198
      		 
          #18 0x7f3dc4ca8043 in start_thread nptl/pthread_create.c:442
      		 
          #19 0x7f3dc4d2861b in clone3 ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
      		 
       
      		 
      0x7f3db4e86570 is located 302448 bytes inside of 1048592-byte region [0x7f3db4e3c800,0x7f3db4f3c810)
      		 
      freed by thread T10 here:
      		 
          #0 0x7f3dc56b76a8 in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:52
      		 
          #1 0x56516aab4511 in root_free /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/mysys/my_alloc.c:77
      		 
          #2 0x56516aab4511 in free_root /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/mysys/my_alloc.c:502
      		 
          #3 0x565169f51ba7 in MHNSW_Trx::reset(TABLE_SHARE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:503
      		 
          #4 0x565169f51ba7 in MHNSW_Trx::release(bool, TABLE_SHARE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:510
      		 
          #5 0x565169f51ba7 in MHNSW_Trx::release(bool, TABLE_SHARE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:507
      		 
          #6 0x565169f4ecbb in MHNSW_Share::release(TABLE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:412
      		 
          #7 0x565169f4ecbb in operator() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:1314
      		 
          #8 0x565169f4ecbb in ~scope_exit /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/include/scope.h:50
      		 
          #9 0x565169f4ecbb in ~scope_exit /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/include/scope.h:47
      		 
          #10 0x565169f4ecbb in mhnsw_read_next(TABLE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:1350
      		 
          #11 0x5651692d1d33 in join_hlindex_read_next /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:25190
      		 
          #12 0x565169297ced in READ_RECORD::read_record() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/records.h:77
      		 
          #13 0x565169297ced in sub_select(JOIN*, st_join_table*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:24061
      		 
          #14 0x56516934db1b in do_select /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:23555
      		 
          #15 0x56516934db1b in JOIN::exec_inner() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:5035
      		 
          #16 0x56516934f2f2 in JOIN::exec() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:4818
      		 
          #17 0x56516934747b in 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*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:5351
      		 
          #18 0x565169348f56 in handle_select(THD*, LEX*, select_result*, unsigned long long) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:633
      		 
          #19 0x565169188dca in mysql_execute_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:4650
      		 
          #20 0x56516918c2e1 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:7886
      		 
          #21 0x56516919468e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:1892
      		 
          #22 0x56516919990e in do_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:1405
      		 
          #23 0x5651695d227e in do_handle_one_connection(CONNECT*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_connect.cc:1448
      		 
          #24 0x5651695d2b8c in handle_one_connection /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_connect.cc:1350
      		 
          #25 0x56516a210057 in pfs_spawn_thread /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/storage/perfschema/pfs.cc:2198
      		 
          #26 0x7f3dc4ca8043 in start_thread nptl/pthread_create.c:442
      		 
       
      		 
      previously allocated by thread T10 here:
      		 
          #0 0x7f3dc56b89cf in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:69
      		 
          #1 0x56516aac7593 in my_malloc /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/mysys/my_malloc.c:93
      		 
          #2 0x56516aab3bbc in alloc_root /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/mysys/my_alloc.c:333
      		 
          #3 0x565169f459dd in MHNSW_Share::alloc_node_internal() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:328
      		 
          #4 0x565169f459dd in MHNSW_Share::get_node(void const*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:439
      		 
          #5 0x565169f459dd in MHNSW_Share::acquire(MHNSW_Share**, TABLE*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:676
      		 
          #6 0x565169f4f983 in mhnsw_read_first(TABLE*, st_key*, Item*, unsigned long long) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:1245
      		 
          #7 0x5651692d1b5f in join_read_first /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:25154
      		 
          #8 0x565169297c12 in sub_select(JOIN*, st_join_table*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:24041
      		 
          #9 0x56516934db1b in do_select /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:23555
      		 
          #10 0x56516934db1b in JOIN::exec_inner() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:5035
      		 
          #11 0x56516934f2f2 in JOIN::exec() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:4818
      		 
          #12 0x56516934747b in 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*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:5351
      		 
          #13 0x565169348f56 in handle_select(THD*, LEX*, select_result*, unsigned long long) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_select.cc:633
      		 
          #14 0x565169188dca in mysql_execute_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:4650
      		 
          #15 0x56516918c2e1 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:7886
      		 
          #16 0x56516919468e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:1892
      		 
          #17 0x56516919990e in do_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_parse.cc:1405
      		 
          #18 0x5651695d227e in do_handle_one_connection(CONNECT*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_connect.cc:1448
      		 
          #19 0x5651695d2b8c in handle_one_connection /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/sql_connect.cc:1350
      		 
          #20 0x56516a210057 in pfs_spawn_thread /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/storage/perfschema/pfs.cc:2198
      		 
          #21 0x7f3dc4ca8043 in start_thread nptl/pthread_create.c:442
      		 
       
      		 
      Thread T10 created by T0 here:
      		 
          #0 0x7f3dc5649726 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cpp:207
      		 
          #1 0x56516a2102cd in my_thread_create /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/storage/perfschema/my_thread.h:38
      		 
          #2 0x56516a2102cd in pfs_spawn_thread_v1 /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/storage/perfschema/pfs.cc:2249
      		 
          #3 0x565168dfa353 in inline_mysql_thread_create /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/include/mysql/psi/mysql_thread.h:1139
      		 
          #4 0x565168dfa353 in create_thread_to_handle_connection(CONNECT*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/mysqld.cc:6271
      		 
          #5 0x565168e06d55 in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/mysqld.cc:6395
      		 
          #6 0x565168e079a7 in handle_connections_sockets() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/mysqld.cc:6508
      		 
          #7 0x565168e094ac in mysqld_main(int, char**) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/mysqld.cc:6166
      		 
          #8 0x7f3dc4c461c9 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
      		 
       
      		 
      SUMMARY: AddressSanitizer: heap-use-after-free /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel-asan/sql/vector_mhnsw.cc:798 in FVectorNode::gref_len() const
      		 
      Shadow bytes around the buggy address:
      		 
        0x0fe8369c8c50: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8c60: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8c70: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8c80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8c90: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
      =>0x0fe8369c8ca0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd
      		 
        0x0fe8369c8cb0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8cc0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8cd0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8ce0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
        0x0fe8369c8cf0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
      		 
      Shadow byte legend (one shadow byte represents 8 application bytes):
      		 
        Addressable:           00
      		 
        Partially addressable: 01 02 03 04 05 06 07 
        Heap left redzone:       fa
      		 
        Freed heap region:       fd
      		 
        Stack left redzone:      f1
      		 
        Stack mid redzone:       f2
      		 
        Stack right redzone:     f3
      		 
        Stack after return:      f5
      		 
        Stack use after scope:   f8
      		 
        Global redzone:          f9
      		 
        Global init order:       f6
      		 
        Poisoned by user:        f7
      		 
        Container overflow:      fc
      		 
        Array cookie:            ac
      		 
        Intra object redzone:    bb
      		 
        ASan internal:           fe
      		 
        Left alloca redzone:     ca
      		 
        Right alloca redzone:    cb
      		 
      ==1263937==ABORTING

      042f9f92d08fce4cb1b0642eac73c7d16408608e non-ASAN, one of examples

      		 
      #2  <signal handler called>
      		 
      #3  0x000055bd15d6af68 in FVector::distance_to (vec_len=<error reading variable: Cannot access memory at address 0x2c8>, other=<optimized out>, this=0x8b57000000001db8) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:212
      		 
      #4  FVectorNode::distance_to (this=this@entry=0x7f4ba0f41d80, other=0x7f4ba0f15718) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:706
      		 
      #5  0x000055bd15d6bc0e in VisitedSet::create (node=0x7f4ba0f41d80, this=0x7f4bc95ef5b0) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:842
      		 
      #6  search_layer (ctx=ctx@entry=0x7f4ba0017188, graph=graph@entry=0x7f4ba0f17240, target=<optimized out>, threshold=<optimized out>, result_size=<optimized out>, layer=layer@entry=0, inout=inout@entry=0x7f4ba0f16e08, construction=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:1074
      		 
      #7  0x000055bd15d6cf3b in mhnsw_read_next (table=0x7f4ba01a4588) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:1344
      		 
      #8  0x000055bd15913785 in TABLE::hlindex_read_next (this=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_base.cc:9996
      		 
      #9  0x000055bd159e4214 in join_hlindex_read_next (info=0x7f4ba0f14148) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_select.cc:25190
      		 
      #10 0x000055bd159d3b53 in READ_RECORD::read_record (this=0x7f4ba0f14148) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/records.h:77
      		 
      #11 sub_select (join=0x7f4ba0015f10, join_tab=0x7f4ba0f14078, end_of_records=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_select.cc:24061
      		 
      #12 0x000055bd15a071c6 in do_select (procedure=<optimized out>, join=0x7f4ba0015f10) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_select.cc:23555
      		 
      #13 JOIN::exec_inner (this=this@entry=0x7f4ba0015f10) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_select.cc:5035
      		 
      #14 0x000055bd15a075b5 in JOIN::exec (this=this@entry=0x7f4ba0015f10) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_select.cc:4818
      		 
      #15 0x000055bd15a055f8 in mysql_select (thd=thd@entry=0x7f4ba0000c68, tables=<optimized out>, fields=..., conds=<optimized out>, og_num=<optimized out>, order=<optimized out>, group=<optimized out>, having=<optimized out>, proc_param=<optimized out>, select_options=<optimized out>, result=<optimized out>, unit=<optimized out>, select_lex=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_select.cc:5351
      		 
      #16 0x000055bd15a05dc4 in handle_select (thd=thd@entry=0x7f4ba0000c68, lex=lex@entry=0x7f4ba0004ed0, result=result@entry=0x7f4ba0015e50, setup_tables_done_option=setup_tables_done_option@entry=35184372088832) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_select.cc:633
      		 
      #17 0x000055bd15985b33 in mysql_execute_command (thd=thd@entry=0x7f4ba0000c68, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_parse.cc:4650
      		 
      #18 0x000055bd15986666 in mysql_parse (thd=0x7f4ba0000c68, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_parse.cc:7886
      		 
      #19 0x000055bd15988efd in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f4ba0000c68, packet=packet@entry=0x7f4ba02177a9 "INSERT INTO t2 (v) SELECT v FROM t2 tb1 ORDER BY VEC_DISTANCE_EUCLIDEAN(tb1.v, VEC_FROMTEXT('[-7.238,-7.885,-4.675,-5.394,-3.937,-6.039,-2.945,-5.806,-8.250,-9.479,-8.988,-2.370,-3.778,-4.617,-4.558,-"..., packet_length=packet_length@entry=778, blocking=blocking@entry=true) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_parse.cc:1991
      		 
      #20 0x000055bd1598ae3f in do_command (thd=0x7f4ba0000c68, blocking=blocking@entry=true) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_parse.cc:1405
      		 
      #21 0x000055bd15abd1e7 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x55bd180ad538, put_in_cache=put_in_cache@entry=true) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_connect.cc:1448
      		 
      #22 0x000055bd15abd56d in handle_one_connection (arg=arg@entry=0x55bd180ad538) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_connect.cc:1350
      		 
      #23 0x000055bd15e784ec in pfs_spawn_thread (arg=0x55bd180390e8) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/storage/perfschema/pfs.cc:2198
      		 
      #24 0x00007f4bd7ca8044 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
      		 
      #25 0x00007f4bd7d2861c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

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          Bug - A problem which impairs or prevents the functions of the product. MDEV-35214 Server crashes in FVectorNode::gref_len with insufficient mhnsw_max_cache_size

          • Major - Major loss of function.
          • Closed
          is caused by

          New Feature - A new feature of the product, which has yet to be developed. MDEV-34939 vector search in 11.7

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

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              serg Sergei Golubchik
              elenst Elena Stepanova
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                Resolved:

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