innodb.innodb-alter-debug '32k,innodb'   [ fail ]  Found warnings/errors in server log file!

        Test ended at 2020-01-17 15:54:18

line

==27512== Thread 8:

==27512== Conditional jump or move depends on uninitialised value(s)

==27512==    at 0x4C31D21: __memcmp_sse4_1 (vg_replace_strmem.c:1094)

==27512==    by 0x14AA60C: dict_table_t* dict_acquire_mdl_shared<false>(dict_table_t*, THD*, MDL_ticket**, dict_table_op_t) (dict0dict.cc:893)

==27512==    by 0x149B107: dict_table_open_on_id(unsigned long, bool, dict_table_op_t, THD*, MDL_ticket**) (dict0dict.cc:948)

==27512==    by 0x12F9C64: row_purge_parse_undo_rec(purge_node_t*, unsigned char*, que_thr_t*, bool*) (row0purge.cc:936)

==27512==    by 0x12FA591: row_purge(purge_node_t*, unsigned char*, que_thr_t*) (row0purge.cc:1110)

==27512==    by 0x12FA72E: row_purge_step(que_thr_t*) (row0purge.cc:1162)

==27512==    by 0x126247C: que_thr_step(que_thr_t*) (que0que.cc:1038)

==27512==    by 0x1262713: que_run_threads_low(que_thr_t*) (que0que.cc:1100)

==27512==    by 0x1262963: que_run_threads(que_thr_t*) (que0que.cc:1140)

==27512==    by 0x1347D00: srv_task_execute() (srv0srv.cc:2033)

==27512==    by 0x1348487: purge_worker_callback(void*) (srv0srv.cc:2183)

==27512==    by 0x159AC1F: tpool::task_group::execute(tpool::task*) (task_group.cc:55)

==27512==    by 0x159AFD5: tpool::task::execute() (task.cc:47)

==27512==    by 0x1594859: tpool::thread_pool_generic::worker_main(tpool::worker_data*) (tpool_generic.cc:513)

==27512==    by 0x159AA30: void std::__invoke_impl<void, void (tpool::thread_pool_generic::* const&)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(std::__invoke_memfun_deref, void (tpool::thread_pool_generic::* const&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) (functional:227)

==27512==    by 0x159A9A2: std::result_of<void (tpool::thread_pool_generic::* const&(tpool::thread_pool_generic*&&, tpool::worker_data*&&))(tpool::worker_data*)>::type std::__invoke<void (tpool::thread_pool_generic::* const&)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>(void (tpool::thread_pool_generic::* const&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) (functional:251)

==27512==    by 0x159A936: decltype (__invoke((*this)._M_pmf, (forward<tpool::thread_pool_generic*>)({parm#1}), (forward<tpool::worker_data*>)({parm#1}))) std::_Mem_fn_base<void (tpool::thread_pool_generic::*)(tpool::worker_data*), true>::operator()<tpool::thread_pool_generic*, tpool::worker_data*>(tpool::thread_pool_generic*&&, tpool::worker_data*&&) const (functional:604)

==27512==    by 0x159A8E8: void std::_Bind_simple<std::_Mem_fn<void (tpool::thread_pool_generic::*)(tpool::worker_data*)> (tpool::thread_pool_generic*, tpool::worker_data*)>::_M_invoke<0ul, 1ul>(std::_Index_tuple<0ul, 1ul>) (functional:1391)

==27512==    by 0x159A7E6: std::_Bind_simple<std::_Mem_fn<void (tpool::thread_pool_generic::*)(tpool::worker_data*)> (tpool::thread_pool_generic*, tpool::worker_data*)>::operator()() (functional:1380)

==27512==    by 0x159A7C5: std::thread::_State_impl<std::_Bind_simple<std::_Mem_fn<void (tpool::thread_pool_generic::*)(tpool::worker_data*)> (tpool::thread_pool_generic*, tpool::worker_data*)> >::_M_run() (thread:197)

CURRENT_TEST: innodb.innodb-alter-debug

mysqltest: At line 22: query 'ALTER TABLE t1ć DROP FOREIGN KEY t1c2, RENAME TO ②' failed with wrong errno 2013: 'Lost connection to MySQL server during query', instead of 1114...

…

Version: '10.5.1-MariaDB-debug-log'  socket: '/dev/shm/10.5m/mysql-test/var/tmp/11/mysqld.1.sock'  port: 16220  Source distribution

Uninitialized bytes in MemcmpInterceptorCommon at offset 4 inside [0x7f7485209810, 5)

==507723==WARNING: MemorySanitizer: use-of-uninitialized-value

    #0 0x55585958193e in bcmp (/dev/shm/10.5m/sql/mysqld+0x6d793e)

    #1 0x55585c55a887 in dict_table_t* dict_acquire_mdl_shared<false>(dict_table_t*, THD*, MDL_ticket**, dict_table_op_t) /mariadb/10.5-MDEV-12353/storage/innobase/dict/dict0dict.cc:893:10

    #2 0x55585c508c1b in dict_table_open_on_id(unsigned long, bool, dict_table_op_t, THD*, MDL_ticket**) /mariadb/10.5-MDEV-12353/storage/innobase/dict/dict0dict.cc:947:12

    #3 0x55585bed35fd in row_purge_parse_undo_rec(purge_node_t*, unsigned char*, que_thr_t*, bool*) /mariadb/10.5-MDEV-12353/storage/innobase/row/row0purge.cc:933:16

    #4 0x55585bed35fd in row_purge(purge_node_t*, unsigned char*, que_thr_t*) /mariadb/10.5-MDEV-12353/storage/innobase/row/row0purge.cc:1107:10

    #5 0x55585bed35fd in row_purge_step(que_thr_t*) /mariadb/10.5-MDEV-12353/storage/innobase/row/row0purge.cc:1159:3

    #6 0x55585bca0ed5 in que_thr_step(que_thr_t*) /mariadb/10.5-MDEV-12353/storage/innobase/que/que0que.cc:1038:9

    #7 0x55585bca0ed5 in que_run_threads_low(que_thr_t*) /mariadb/10.5-MDEV-12353/storage/innobase/que/que0que.cc:1100:14

    #8 0x55585bca0ed5 in que_run_threads(que_thr_t*) /mariadb/10.5-MDEV-12353/storage/innobase/que/que0que.cc:1140:2

    #9 0x55585c0047d9 in srv_task_execute() /mariadb/10.5-MDEV-12353/storage/innobase/srv/srv0srv.cc:2033:3

    #10 0x55585c0047d9 in purge_worker_callback(void*) /mariadb/10.5-MDEV-12353/storage/innobase/srv/srv0srv.cc:2183:10

    #11 0x55585c8c6745 in tpool::task_group::execute(tpool::task*) /mariadb/10.5-MDEV-12353/tpool/task_group.cc:55:9

    #12 0x55585c8b9f04 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) /mariadb/10.5-MDEV-12353/tpool/tpool_generic.cc:513:11

    #13 0x55585c8c3ca9 in decltype(*(std::__1::forward<tpool::thread_pool_generic*>(fp0)).*fp(std::__1::forward<tpool::worker_data*>(fp1))) std::__1::__invoke<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*, void>(void (tpool::thread_pool_generic::*&&)(tpool::worker_data*), tpool::thread_pool_generic*&&, tpool::worker_data*&&) /usr/lib/llvm-9/bin/../include/c++/v1/type_traits:3471:1

    #14 0x55585c8c3ca9 in void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*, 2ul, 3ul>(std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*>&, std::__1::__tuple_indices<2ul, 3ul>) /usr/lib/llvm-9/bin/../include/c++/v1/thread:277:5

    #15 0x55585c8c3ca9 in void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >(void*) /usr/lib/llvm-9/bin/../include/c++/v1/thread:287:5

    #16 0x7f749b04dfb6 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x8fb6)

    #17 0x7f749a89f2de in clone (/lib/x86_64-linux-gnu/libc.so.6+0xfa2de)

  Uninitialized value was created by an allocation of 'tbl_buf' in the stack frame of function '_Z23dict_acquire_mdl_sharedILb0EEP12dict_table_tS1_P3THDPP10MDL_ticket15dict_table_op_t'

    #0 0x55585c5599b0 in dict_table_t* dict_acquire_mdl_shared<false>(dict_table_t*, THD*, MDL_ticket**, dict_table_op_t) /mariadb/10.5-MDEV-12353/storage/innobase/dict/dict0dict.cc:793

SUMMARY: MemorySanitizer: use-of-uninitialized-value (/dev/shm/10.5m/sql/mysqld+0x6d793e) in bcmp

Exiting

200123 14:18:01 [ERROR] mysqld got signal 6 ;

…

#9  0x000055c17abba93f in bcmp ()

    at /mariadb/10.5-MDEV-12353/sql/sql_string.h:137

#10 0x000055c17db93888 in dict_acquire_mdl_shared<false> (

    table=0x71800007ec88, thd=0x0, mdl=<optimized out>, 

    table_op=DICT_TABLE_OP_NORMAL)

    at /mariadb/10.5-MDEV-12353/storage/innobase/dict/dict0dict.cc:893

…

(gdb) f 10

#10 0x000055c17db93888 in dict_acquire_mdl_shared<false> (

    table=0x71800007ec88, thd=0x0, mdl=<optimized out>, 

    table_op=DICT_TABLE_OP_NORMAL)

    at /mariadb/10.5-MDEV-12353/storage/innobase/dict/dict0dict.cc:893

893	        !memcmp(tbl_buf, tbl_buf1, tbl_len))

(gdb) p *table

$1 = {id = 21, id_hash = 0x0, name = {m_name = 0x7010000042d0 "test/@2460"}, 

  name_hash = 0x0, heap = 0x70f000017ac0, data_dir_path = 0x0, 

  space = 0x713000030200, space_id = 6, flags = 33, flags2 = 80, 

LD_LIBRARY_PATH=/mariadb/llvm-toolchain-9-9.0.1/libc++msan/lib MSAN_OPTIONS=abort_on_error=1 ./mtr --big-test --parallel=auto innodb.innodb-alter-debug 

innodb.innodb-alter-debug '32k,innodb'   w5 [ pass ]    393

innodb.innodb-alter-debug '16k,innodb'   w7 [ pass ]    535

innodb.innodb-alter-debug '64k,innodb'   w9 [ pass ]    535

innodb.innodb-alter-debug '8k,innodb'    w12 [ pass ]    527

innodb.innodb-alter-debug '4k,innodb'    w10 [ pass ]    521

diff --git a/storage/innobase/dict/dict0dict.cc b/storage/innobase/dict/dict0dict.cc

index 98d0f85ccd8..7ae8e65e8e5 100644

--- a/storage/innobase/dict/dict0dict.cc

+++ b/storage/innobase/dict/dict0dict.cc

@@ -754,7 +754,6 @@ bool dict_table_t::parse_name(char (&db_name)[NAME_LEN + 1],

     mutex_exit(&dict_sys.mutex);

   *db_name_len= db_len;

-  *tbl_name_len= tbl_len;

   filename_to_tablename(db_buf, db_name, MAX_DATABASE_NAME_LEN + 1, true);

@@ -763,12 +762,10 @@ bool dict_table_t::parse_name(char (&db_name)[NAME_LEN + 1],

     return false;

   if (char* is_part= strchr(tbl_buf, '#'))

-  {

     *is_part = '\0';

-    *tbl_name_len= is_part - tbl_buf;

-  }

   filename_to_tablename(tbl_buf, tbl_name, MAX_TABLE_NAME_LEN + 1, true);

+  *tbl_name_len= strlen(tbl_name);

   return true;

 }