MSAN failure in main.vector

main.vector 'innodb'                     w32 [ fail ]

        Test ended at 2024-09-16 16:36:56

CURRENT_TEST: main.vector

mysqltest: At line 355: query 'alter table t1 engine=myisam' failed: <Unknown> (2013): Lost connection to server during query

The result from queries just before the failure was:

< snip >

drop index if exists v on t1;

Warnings:

Note	1091	Can't DROP INDEX `v`; check that it exists

db.opt

t1.frm

t1.ibd

show create table t1;

Table	Create Table

t1	CREATE TABLE `t1` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `v` blob NOT NULL,

  PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci

create vector index if not exists v on t1(v);

alter table t1 rename key if exists v to w;

alter table t1 rename key if exists w to v;

alter table t1 alter key if exists v ignored;

alter table t1 alter key if exists v not ignored;

# ENGINE

alter table t1 engine=myisam;

More results from queries before failure can be found in /home/buildbot/amd64-debian-11-msan/build/mysql-test/var/32/log/vector.log

...

024-09-16 16:36:51 0 [Note] mariadbd: Event Scheduler: Loaded 0 events

2024-09-16 16:36:51 0 [Note] /home/buildbot/amd64-debian-11-msan/build/sql/mariadbd: ready for connections.

Version: '11.7.0-MariaDB-debug-log'  socket: '/home/buildbot/amd64-debian-11-msan/build/mysql-test/var/tmp/32/mysqld.1.sock'  port: 20020  Source distribution

2024-09-16 16:36:53 4 [ERROR] InnoDB: Cannot rename './test1/t1#i#01.ibd' to './test1/t2#i#01.ibd' because the source file does not exist.

2024-09-16 16:36:53 4 [ERROR] InnoDB: File ./test1/t1#i#01.ibd was not found

Uninitialized bytes in __interceptor_pwrite64 at offset 5 inside [0x70b00001153c, 32)

==97758==WARNING: MemorySanitizer: use-of-uninitialized-value

    #0 0x55b8e9419dd0 in my_pwrite /home/buildbot/amd64-debian-11-msan/build/mysys/my_pread.c:159:19

    #1 0x55b8e9271bb0 in inline_mysql_file_pwrite /home/buildbot/amd64-debian-11-msan/build/include/mysql/psi/mysql_file.h:1226:13

    #2 0x55b8e9271bb0 in mi_nommap_pwrite /home/buildbot/amd64-debian-11-msan/build/storage/myisam/mi_dynrec.c:259:10

    #3 0x55b8e927a3b1 in _mi_write_part_record /home/buildbot/amd64-debian-11-msan/build/storage/myisam/mi_dynrec.c:767:9

    #4 0x55b8e927385f in write_dynamic_record /home/buildbot/amd64-debian-11-msan/build/storage/myisam/mi_dynrec.c:371:9

    #5 0x55b8e92765b0 in _mi_write_blob_record /home/buildbot/amd64-debian-11-msan/build/storage/myisam/mi_dynrec.c:295:9

    #6 0x55b8e92f3d19 in mi_write /home/buildbot/amd64-debian-11-msan/build/storage/myisam/mi_write.c:146:9

    #7 0x55b8e920311d in ha_myisam::write_row(unsigned char const*) /home/buildbot/amd64-debian-11-msan/build/storage/myisam/ha_myisam.cc:963:10

    #8 0x55b8e754742b in handler::ha_write_row(unsigned char const*) /home/buildbot/amd64-debian-11-msan/build/sql/handler.cc:8150:3

    #9 0x55b8e7be7b76 in FVectorNode::save(TABLE*) /home/buildbot/amd64-debian-11-msan/build/sql/vector_mhnsw.cc:1002:23

    #10 0x55b8e7be8d5b in mhnsw_insert(TABLE*, st_key*) /home/buildbot/amd64-debian-11-msan/build/sql/vector_mhnsw.cc:1193:25

    #11 0x55b8e653554e in TABLE::hlindexes_on_insert() /home/buildbot/amd64-debian-11-msan/build/sql/sql_base.cc:9925:18

    #12 0x55b8e754791d in handler::ha_write_row(unsigned char const*) /home/buildbot/amd64-debian-11-msan/build/sql/handler.cc:8154:34

    #13 0x55b8e6ba5d86 in copy_data_between_tables(THD*, TABLE*, TABLE*, bool, unsigned int, st_order*, unsigned long long*, unsigned long long*, Alter_info*, Alter_table_ctx*, bool, unsigned long long) /home/buildbot/amd64-debian-11-msan/build/sql/sql_table.cc:12491:24

    #14 0x55b8e6b82bb5 in mysql_alter_table(THD*, st_mysql_const_lex_string const*, st_mysql_const_lex_string const*, Table_specification_st*, TABLE_LIST*, Recreate_info*, Alter_info*, unsigned int, st_order*, bool, bool) /home/buildbot/amd64-debian-11-msan/build/sql/sql_table.cc:11586:9

    #15 0x55b8e6e04155 in Sql_cmd_alter_table::execute(THD*) /home/buildbot/amd64-debian-11-msan/build/sql/sql_alter.cc:701:11

    #16 0x55b8e676e981 in mysql_execute_command(THD*, bool) /home/buildbot/amd64-debian-11-msan/build/sql/sql_parse.cc:5852:26

    #17 0x55b8e6757409 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /home/buildbot/amd64-debian-11-msan/build/sql/sql_parse.cc:7879:18

    #18 0x55b8e674d5e6 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /home/buildbot/amd64-debian-11-msan/build/sql/sql_parse.cc:1892:7

    #19 0x55b8e6758b32 in do_command(THD*, bool) /home/buildbot/amd64-debian-11-msan/build/sql/sql_parse.cc:1405:17

    #20 0x55b8e6de08e6 in do_handle_one_connection(CONNECT*, bool) /home/buildbot/amd64-debian-11-msan/build/sql/sql_connect.cc:1448:11

    #21 0x55b8e6ddfede in handle_one_connection /home/buildbot/amd64-debian-11-msan/build/sql/sql_connect.cc:1350:5

    #22 0x55b8e820734f in pfs_spawn_thread /home/buildbot/amd64-debian-11-msan/build/storage/perfschema/pfs.cc:2198:3

    #23 0x7fabe93c5ea6 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7ea6) (BuildId: 255e355c207aba91a59ae1f808e3b4da443abf0c)

    #24 0x7fabe8dcfa6e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xfba6e) (BuildId: 2b86a1968781038c0766b17c1ea11a2a71d7d907)

  Uninitialized value was stored to memory at

    #0 0x55b8e61921f9 in __msan_memcpy (/home/buildbot/amd64-debian-11-msan/build/sql/mariadbd+0x90f1f9) (BuildId: 91e2093e8c0fef4f0236d256d1edb89eeca8dc2c)

    #1 0x55b8e927275c in _mi_rec_pack /home/buildbot/amd64-debian-11-msan/build/storage/myisam/mi_dynrec.c:1077:7

  Uninitialized value was stored to memory at

    #0 0x55b8e7be82b0 in Field::set_notnull(long long) /home/buildbot/amd64-debian-11-msan/build/sql/field.h:1458:41

    #1 0x55b8e7be82b0 in FVectorNode::save(TABLE*) /home/buildbot/amd64-debian-11-msan/build/sql/vector_mhnsw.cc:971:31

  Memory was marked as uninitialized

    #0 0x55b8e6198bbd in __msan_allocated_memory (/home/buildbot/amd64-debian-11-msan/build/sql/mariadbd+0x915bbd) (BuildId: 91e2093e8c0fef4f0236d256d1edb89eeca8dc2c)

    #1 0x55b8e9415fa7 in my_malloc /home/buildbot/amd64-debian-11-msan/build/mysys/my_malloc.c:120:7

SUMMARY: MemorySanitizer: use-of-uninitialized-value /home/buildbot/amd64-debian-11-msan/build/mysys/my_pread.c:159:19 in my_pwrite

Exiting

240916 16:36:55 [ERROR] mysqld got signal 6 ;