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  1. MariaDB Server
  2. MDEV-35078

Server crash or ASAN errors in mhnsw_insert

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • N/A
    • 11.7.1
    • Vector search
    • None

    Description

      --source include/have_sequence.inc
       
      SET SESSION mhnsw_max_edges_per_node = 4;
       
      CREATE TABLE t (a INT, v BLOB NOT NULL) ENGINE=MyISAM;
      INSERT INTO t SELECT seq, x'00000000' FROM seq_1_to_10;
      ALTER TABLE t ADD VECTOR(v);
      CREATE TABLE x LIKE t;
      INSERT INTO t VALUES (11,x'00000000');
       
      # Cleanup
      DROP TABLE t, x;
      

      bb-11.6-MDEV-32887-vector 77be73c489fb7c21ca58e78cef10e0c166f293d8

      ==676249==ERROR: AddressSanitizer: use-after-poison on address 0x7fbec1166eb0 at pc 0x55ec6204cb5f bp 0x7fbec2a75660 sp 0x7fbec2a75658
      WRITE of size 8 at 0x7fbec1166eb0 thread T5
          #0 0x55ec6204cb5e in FVectorNode::load_from_record(TABLE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:785
          #1 0x55ec6204ba53 in FVectorNode::load(TABLE*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:731
          #2 0x55ec620502b8 in search_layer /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:1073
          #3 0x55ec6205280d in mhnsw_insert(TABLE*, st_key*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:1206
          #4 0x55ec610ecca0 in TABLE::hlindexes_on_insert() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_base.cc:9919
          #5 0x55ec61c42884 in handler::ha_write_row(unsigned char const*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/handler.cc:8163
          #6 0x55ec611be63d in write_record(THD*, TABLE*, st_copy_info*, select_result*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_insert.cc:2322
          #7 0x55ec611b4d6d in mysql_insert(THD*, TABLE_LIST*, List<Item>&, List<List<Item> >&, List<Item>&, List<Item>&, enum_duplicates, bool, select_result*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_insert.cc:1179
          #8 0x55ec61285037 in mysql_execute_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:4458
          #9 0x55ec6129cbf9 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:7873
          #10 0x55ec61273c1b in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:1892
          #11 0x55ec6127092f in do_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:1405
          #12 0x55ec61760188 in do_handle_one_connection(CONNECT*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_connect.cc:1448
          #13 0x55ec6175fb49 in handle_one_connection /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_connect.cc:1350
          #14 0x55ec62403671 in pfs_spawn_thread /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/storage/perfschema/pfs.cc:2198
          #15 0x7fbecdca8043 in start_thread nptl/pthread_create.c:442
          #16 0x7fbecdd2861b in clone3 ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
       
      0x7fbec1166eb0 is located 1712 bytes inside of 1048592-byte region [0x7fbec1166800,0x7fbec1266810)
      allocated by thread T5 here:
          #0 0x7fbece8b89cf in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:69
          #1 0x55ec6317e689 in my_malloc /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/mysys/my_malloc.c:93
          #2 0x55ec63150c55 in root_alloc /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/mysys/my_alloc.c:66
          #3 0x55ec63152645 in alloc_root /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/mysys/my_alloc.c:333
          #4 0x55ec62059aaf in MHNSW_Share::alloc_node_internal() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:328
          #5 0x55ec6205a946 in MHNSW_Share::get_node(void const*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:439
          #6 0x55ec6204ac1a in MHNSW_Share::acquire(MHNSW_Share**, TABLE*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:676
          #7 0x55ec620519cb in mhnsw_insert(TABLE*, st_key*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:1155
          #8 0x55ec610ecca0 in TABLE::hlindexes_on_insert() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_base.cc:9919
          #9 0x55ec61c42884 in handler::ha_write_row(unsigned char const*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/handler.cc:8163
          #10 0x55ec611be63d in write_record(THD*, TABLE*, st_copy_info*, select_result*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_insert.cc:2322
          #11 0x55ec611b4d6d in mysql_insert(THD*, TABLE_LIST*, List<Item>&, List<List<Item> >&, List<Item>&, List<Item>&, enum_duplicates, bool, select_result*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_insert.cc:1179
          #12 0x55ec61285037 in mysql_execute_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:4458
          #13 0x55ec6129cbf9 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:7873
          #14 0x55ec61273c1b in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:1892
          #15 0x55ec6127092f in do_command(THD*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_parse.cc:1405
          #16 0x55ec61760188 in do_handle_one_connection(CONNECT*, bool) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_connect.cc:1448
          #17 0x55ec6175fb49 in handle_one_connection /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/sql_connect.cc:1350
          #18 0x55ec62403671 in pfs_spawn_thread /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/storage/perfschema/pfs.cc:2198
          #19 0x7fbecdca8043 in start_thread nptl/pthread_create.c:442
       
      Thread T5 created by T0 here:
          #0 0x7fbece849726 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cpp:207
          #1 0x55ec623ff413 in my_thread_create /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/storage/perfschema/my_thread.h:38
          #2 0x55ec62403a60 in pfs_spawn_thread_v1 /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/storage/perfschema/pfs.cc:2249
          #3 0x55ec60e8cc33 in inline_mysql_thread_create /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/include/mysql/psi/mysql_thread.h:1139
          #4 0x55ec60ea53fa in create_thread_to_handle_connection(CONNECT*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/mysqld.cc:6267
          #5 0x55ec60ea5a1f in create_new_thread(CONNECT*) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/mysqld.cc:6329
          #6 0x55ec60ea5d0a in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/mysqld.cc:6391
          #7 0x55ec60ea6992 in handle_connections_sockets() /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/mysqld.cc:6504
          #8 0x55ec60ea4c77 in mysqld_main(int, char**) /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/mysqld.cc:6162
          #9 0x55ec60e8bd58 in main /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/main.cc:34
          #10 0x7fbecdc461c9 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
       
      SUMMARY: AddressSanitizer: use-after-poison /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-asan/sql/vector_mhnsw.cc:785 in FVectorNode::load_from_record(TABLE*)
      Shadow bytes around the buggy address:
        0x0ff858224d80: 00 00 00 05 f7 00 00 00 00 00 00 00 00 00 00 00
        0x0ff858224d90: 00 00 05 f7 00 00 00 00 00 00 00 00 00 00 00 00
        0x0ff858224da0: 00 05 f7 00 00 00 00 00 00 00 00 00 00 00 00 00
        0x0ff858224db0: 05 f7 00 00 00 00 00 00 00 00 00 00 00 00 00 05
        0x0ff858224dc0: f7 00 00 00 00 00 00 00 00 00 00 f7 00 00 00 00
      =>0x0ff858224dd0: 00 00 00 00 00 00[f7]f7 f7 f7 f7 f7 f7 f7 f7 f7
        0x0ff858224de0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
        0x0ff858224df0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
        0x0ff858224e00: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
        0x0ff858224e10: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
        0x0ff858224e20: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
      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
      ==676249==ABORTING
      241004 16:02:40 [ERROR] mysqld got signal 6 ;
      Sorry, we probably made a mistake, and this is a bug.
       
      Your assistance in bug reporting will enable us to fix this for the next release.
      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: 11.7.0-MariaDB-debug-log source revision: 77be73c489fb7c21ca58e78cef10e0c166f293d8
      key_buffer_size=1048576
      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 = 64017 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x62c0000c0218
      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 = 0x7fbec2a78bd0 thread_stack 0xb00000
      sanitizer_common/sanitizer_common_interceptors.inc:4277(__interceptor_backtrace.part.0)[0x7fbece851f31]
      mysys/stacktrace.c:215(my_print_stacktrace)[0x55ec6318f554]
      sql/signal_handler.cc:239(handle_fatal_signal)[0x55ec61bfad28]
      libc_sigaction.c:0(__restore_rt)[0x7fbecdc5afd0]
      nptl/pthread_kill.c:44(__pthread_kill_implementation)[0x7fbecdca9d3c]
      posix/raise.c:27(__GI_raise)[0x7fbecdc5af32]
      stdlib/abort.c:81(__GI_abort)[0x7fbecdc45472]
      sanitizer_common/sanitizer_posix_libcdep.cpp:137(__sanitizer::Abort())[0x7fbece8d650f]
      sanitizer_common/sanitizer_termination.cpp:59(__sanitizer::Die())[0x7fbece8e2ba1]
      asan/asan_report.cpp:190(__asan::ScopedInErrorReport::~ScopedInErrorReport())[0x7fbece8c1f5e]
      asan/asan_report.cpp:479(__asan::ReportGenericError(unsigned long, unsigned long, unsigned long, unsigned long, bool, unsigned long, unsigned int, bool))[0x7fbece8c14c6]
      asan/asan_rtl.cpp:128(__asan_report_store8)[0x7fbece8c290f]
      sql/vector_mhnsw.cc:785(FVectorNode::load_from_record(TABLE*))[0x55ec6204cb5f]
      sql/vector_mhnsw.cc:731(FVectorNode::load(TABLE*))[0x55ec6204ba54]
      sql/vector_mhnsw.cc:1073(search_layer(MHNSW_Share*, TABLE*, FVector const*, float, unsigned int, unsigned long, Neighborhood*, bool))[0x55ec620502b9]
      sql/vector_mhnsw.cc:1206(mhnsw_insert(TABLE*, st_key*))[0x55ec6205280e]
      sql/sql_base.cc:9919(TABLE::hlindexes_on_insert())[0x55ec610ecca1]
      sql/handler.cc:8163(handler::ha_write_row(unsigned char const*))[0x55ec61c42885]
      sql/sql_insert.cc:2322(write_record(THD*, TABLE*, st_copy_info*, select_result*))[0x55ec611be63e]
      sql/sql_insert.cc:1179(mysql_insert(THD*, TABLE_LIST*, List<Item>&, List<List<Item> >&, List<Item>&, List<Item>&, enum_duplicates, bool, select_result*))[0x55ec611b4d6e]
      sql/sql_parse.cc:4458(mysql_execute_command(THD*, bool))[0x55ec61285038]
      sql/sql_parse.cc:7873(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x55ec6129cbfa]
      sql/sql_parse.cc:1894(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool))[0x55ec61273c1c]
      sql/sql_parse.cc:1405(do_command(THD*, bool))[0x55ec61270930]
      sql/sql_connect.cc:1448(do_handle_one_connection(CONNECT*, bool))[0x55ec61760189]
      sql/sql_connect.cc:1352(handle_one_connection)[0x55ec6175fb4a]
      perfschema/pfs.cc:2200(pfs_spawn_thread)[0x55ec62403672]
      nptl/pthread_create.c:442(start_thread)[0x7fbecdca8044]
      x86_64/clone3.S:83(clone3)[0x7fbecdd2861c]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x6290000e6238): INSERT INTO t VALUES (11,x'00000000')
       
      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,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,hash_join_cardinality=on,cset_narrowing=on,sargable_casefold=on
       
      The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mariadbd/ contains
      information that should help you find out what is causing the crash.
      Writing a core file...
      Working directory at /dev/shm/var_auto_I2Nn/mysqld.1/data
      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             514730               514730               processes 
      Max open files            65536                65536                files     
      Max locked memory         16876769280          16876769280          bytes     
      Max address space         unlimited            unlimited            bytes     
      Max file locks            unlimited            unlimited            locks     
      Max pending signals       514730               514730               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
       
      Kernel version: Linux version 6.1.0-13-amd64 (debian-kernel@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29)
      

      non-ASAN RelWithDebInfo

      #2  <signal handler called>
      #3  _mm256_madd_epi16(long long __vector(4), long long __vector(4)) (__B=..., __A=...) at /usr/lib/gcc/x86_64-linux-gnu/12/include/avx2intrin.h:343
      #4  FVector::dot_product(short const*, short const*, unsigned long) [clone .avx_avx2_fma] (v1=0x7f77d4af7c88, v2=0x7f77d4af8040, len=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:137
      #5  0x0000559369905704 in FVector::distance_to (vec_len=<optimized out>, other=<optimized out>, this=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:213
      #6  FVectorNode::distance_to (this=this@entry=0x7f77d4af81c0, other=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:706
      #7  0x00005593699063ae in VisitedSet::create (node=0x7f77d4af81c0, this=0x7f77e40ab5c0) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:842
      #8  search_layer (ctx=<optimized out>, graph=graph@entry=0x7f77d41a5530, target=<optimized out>, threshold=threshold@entry=-1, result_size=result_size@entry=8, layer=layer@entry=0, inout=inout@entry=0x7f77e40ab770, construction=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:1075
      #9  0x000055936990724b in mhnsw_insert (table=0x7f77d4100378, keyinfo=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/vector_mhnsw.cc:1206
      #10 0x00005593694b671f in TABLE::hlindexes_on_insert (this=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_base.cc:9919
      #11 0x00005593697bc61d in handler::ha_write_row (this=0x7f77d4100be0, buf=0x7f77d41007c8 "\376\v") at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/handler.cc:8163
      #12 0x00005593694e5f1d in write_record (thd=thd@entry=0x7f77d4000c68, table=table@entry=0x7f77d4100378, info=info@entry=0x7f77e40aba70, sink=sink@entry=0x0) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_insert.cc:2322
      #13 0x00005593694efbc6 in mysql_insert (thd=thd@entry=0x7f77d4000c68, table_list=<optimized out>, fields=..., values_list=..., update_fields=..., update_values=..., duplic=<optimized out>, ignore=<optimized out>, result=<optimized out>) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_insert.cc:1179
      #14 0x000055936952466a in mysql_execute_command (thd=thd@entry=0x7f77d4000c68, 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:4458
      #15 0x00005593695287b6 in mysql_parse (thd=0x7f77d4000c68, 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:7873
      #16 0x000055936952b02d in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f77d4000c68, packet=packet@entry=0x7f77d4008869 "INSERT INTO t VALUES (11,x'00000000')", packet_length=packet_length@entry=37, blocking=blocking@entry=true) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_parse.cc:1991
      #17 0x000055936952cf64 in do_command (thd=0x7f77d4000c68, blocking=blocking@entry=true) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_parse.cc:1405
      #18 0x000055936965c607 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x55936d039948, 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
      #19 0x000055936965c97d in handle_one_connection (arg=arg@entry=0x55936d039948) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/sql/sql_connect.cc:1350
      #20 0x0000559369a1263c in pfs_spawn_thread (arg=0x55936cff21a8) at /data/bld/preview-11.7-bb-11.6-MDEV-32887-vector-rel/storage/perfschema/pfs.cc:2198
      #21 0x00007f77eaaa8044 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
      #22 0x00007f77eab2861c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
      

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              serg Sergei Golubchik
              elenst Elena Stepanova
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