[MDEV-28058] Spider tests fail with MSAN use-of-uninitialized-value in spider_bulk_alloc_mem Created: 2022-03-14  Updated: 2023-05-23

Status: Open
Project: MariaDB Server
Component/s: Storage Engine - Spider
Affects Version/s: 10.6
Fix Version/s: 10.6

Type: Bug Priority: Major
Reporter: Elena Stepanova Assignee: Yuchen Pei
Resolution: Unresolved Votes: 0
Labels: None
Environment:

5.8.0-1032-gcp #34~20.04.1-Ubuntu x86_64 GNU/Linux
cmake -DPLUGIN_ROCKSDB=NO -DPLUGIN_CONNECT=NO -DPLUGIN_EXAMPLE=NO -DPLUGIN_TOKUDB=NO -DCMAKE_BUILD_TYPE=Debug -DMYSQL_MAINTAINER_MODE=OFF -DWITH_EMBEDDED_SERVER=OFF -DWITH_SAFEMALLOC=OFF -DWITH_ZLIB=bundled -DWITH_SSL=bundled -DWITH_PCRE=bundled -DCMAKE_DISABLE_FIND_PACKAGE_URING=1 -DCMAKE_DISABLE_FIND_PACKAGE_LIBAIO=1 -DHAVE_LIBAIO_H=0 '-DCMAKE_C_FLAGS=-O2 -Wno-unused-command-line-argument -fdebug-macro' '-DCMAKE_CXX_FLAGS=-stdlib=libc++ -O2 -Wno-unused-command-line-argument -fdebug-macro' -DCMAKE_C_COMPILER=clang-12 -DCMAKE_CXX_COMPILER=clang++-12 -DWITH_MSAN=ON -G Ninja .


 Description   

Note: Other versions may well be affected too, I didn't check

10.6 572e34304

 
spider/bg.direct_aggregate_part          [ fail ]
 
        Test ended at 2022-03-14 12:28:49
 
 
 
CURRENT_TEST: spider/bg.direct_aggregate_part
 
mysqltest: At line 122: query 'CREATE TABLE ta_l2 (
 
a INT,
 
b CHAR(1),
 
c DATETIME,
 
PRIMARY KEY(a)
 
) $MASTER_1_ENGINE $MASTER_1_COMMENT2_P_2_1' failed: <Unknown> (2013): Lost connection to server during query
 
...


==13004==WARNING: MemorySanitizer: use-of-uninitialized-value
 
    #0 0x7f687a792bb2 in spider_bulk_alloc_mem(st_spider_transaction*, unsigned int, char const*, char const*, unsigned long, unsigned long, ...) /home/jenkins/src/storage/spider/spd_malloc.cc:249:14
 
    #1 0x7f687a6ddaf9 in spider_parse_connect_info(st_spider_share*, TABLE_SHARE*, partition_info*, unsigned int) /home/jenkins/src/storage/spider/spd_table.cc:3118:5
 
    #2 0x7f687a85e8da in ha_spider::create(char const*, TABLE*, HA_CREATE_INFO*) /home/jenkins/src/storage/spider/ha_spider.cc:11566:20
 
    #3 0x55efc9d88c0f in handler::ha_create(char const*, TABLE*, HA_CREATE_INFO*) /home/jenkins/src/sql/handler.cc:5425:14
 
    #4 0x55efcaa4b0fc in ha_partition::create(char const*, TABLE*, HA_CREATE_INFO*) /home/jenkins/src/sql/ha_partition.cc:834:11
 
    #5 0x55efc9d88c0f in handler::ha_create(char const*, TABLE*, HA_CREATE_INFO*) /home/jenkins/src/sql/handler.cc:5425:14
 
    #6 0x55efc9d8f4e6 in ha_create_table(THD*, char const*, char const*, char const*, HA_CREATE_INFO*, st_mysql_const_unsigned_lex_string*, bool) /home/jenkins/src/sql/handler.cc:5890:22
 
    #7 0x55efc940d73c in create_table_impl(THD*, st_ddl_log_state*, st_ddl_log_state*, st_mysql_const_lex_string const&, st_mysql_const_lex_string const&, st_mysql_const_lex_string const&, st_mysql_const_lex_string const&, st_mysql_const_lex_string const&, DDL_options_st, HA_CREATE_INFO*, Alter_info*, int, bool*, st_key**, unsigned int*, st_mysql_const_unsigned_lex_string*) /home/jenkins/src/sql/sql_table.cc:4471:11
 
    #8 0x55efc940a11c in mysql_create_table_no_lock(THD*, st_ddl_log_state*, st_ddl_log_state*, st_mysql_const_lex_string const*, st_mysql_const_lex_string const*, Table_specification_st*, Alter_info*, bool*, int, TABLE_LIST*) /home/jenkins/src/sql/sql_table.cc:4570:8
 
    #9 0x55efc940f5d4 in mysql_create_table(THD*, TABLE_LIST*, Table_specification_st*, Alter_info*) /home/jenkins/src/sql/sql_table.cc:4682:7
 
    #10 0x55efc9466909 in Sql_cmd_create_table_like::execute(THD*) /home/jenkins/src/sql/sql_table.cc:11855:12
 
    #11 0x55efc9096799 in mysql_execute_command(THD*, bool) /home/jenkins/src/sql/sql_parse.cc:5996:26
 
    #12 0x55efc907ed67 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /home/jenkins/src/sql/sql_parse.cc:8029:18
 
    #13 0x55efc9072ecd in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /home/jenkins/src/sql/sql_parse.cc:1896:7
 
    #14 0x55efc908117c in do_command(THD*, bool) /home/jenkins/src/sql/sql_parse.cc:1404:17
 
    #15 0x55efc9690b26 in do_handle_one_connection(CONNECT*, bool) /home/jenkins/src/sql/sql_connect.cc:1418:11
 
    #16 0x55efc9690085 in handle_one_connection /home/jenkins/src/sql/sql_connect.cc:1312:5
 
    #17 0x55efcaac9cfa in pfs_spawn_thread /home/jenkins/src/storage/perfschema/pfs.cc:2201:3
 
    #18 0x7f6884b68608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477:8
 
    #19 0x7f688486d292 in clone /build/glibc-eX1tMB/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95
 
 
 
SUMMARY: MemorySanitizer: use-of-uninitialized-value /home/jenkins/src/storage/spider/spd_malloc.cc:249:14 in spider_bulk_alloc_mem(st_spider_transaction*, unsigned int, char const*, char const*, unsigned long, unsigned long, ...)
 
  ORIGIN: invalid (0). Might be a bug in MemorySanitizer origin tracking.
 
    This could still be a bug in your code, too!

Note: The last lines in the MSAN output above say it may be a bug in MSAN origin tracking, but that's not certain. If you come to the conclusion that it's a MSAN failure, please feel free to close as not-a-bug, but that will likely mean that Spider will remain disabled in CI MSAN tests.
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