[MDEV-7334] valgrind warning "unitialized bytes" in 10.1 Created: 2014-12-16  Updated: 2015-03-12  Resolved: 2015-03-12

Status: Closed
Project: MariaDB Server
Component/s: GIS
Affects Version/s: 10.1.2
Fix Version/s: 10.1.4

Type: Bug Priority: Critical
Reporter: Sergei Golubchik Assignee: Alexey Botchkov
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Blocks
blocks MDEV-7069 Fix buildbot failures in main server ... Stalled
blocks MDEV-7172 Fix buildbot failures in 10.1 tree Closed

 Description   

Valgrind prints warnings like

main.gis                                 w5 [ fail ]  Found warnings/errors in server log file!
 
        Test ended at 2014-12-15 23:28:07
 
line
 
==1895== Thread 5:
 
==1895== Syscall param write(buf) points to uninitialised byte(s)
 
==1895==    at 0x4E3B7FB: ??? (in /lib64/libpthread-2.9.so)
 
==1895==    by 0xE72296: my_write (my_write.c:48)
 
==1895==    by 0x7AD6A5: writefrm(char const*, char const*, char const*, bool, unsigned char const*, unsigned long) (mysql_file.h:1131)
 
==1895==    by 0x6D0FBC: rea_create_table(THD*, st_mysql_const_unsigned_lex_string*, char const*, char const*, char const*, HA_CREATE_INFO*, handler*, bool) (unireg.cc:382)
 
==1895==    by 0x698D25: create_table_impl(THD*, char const*, char const*, char const*, char const*, char const*, DDL_options_st, HA_CREATE_INFO*, Alter_info*, int, bool*, st_key**, unsigned int*, st_mysql_const_unsigned_lex_string*) (sql_table.cc:4806)
 
==1895==    by 0x69CFAD: mysql_alter_table(THD*, char*, char*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool) (sql_table.cc:8644)
 
==1895==    by 0x6FC459: Sql_cmd_alter_table::execute(THD*) (sql_alter.cc:329)
 
==1895==    by 0x5FAAC6: mysql_execute_command(THD*) (sql_parse.cc:5521)
 
==1895==    by 0x602039: mysql_parse(THD*, char*, unsigned int, Parser_state*) (sql_parse.cc:7024)
 
==1895==    by 0x604939: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1458)
 
==1895==    by 0x604F00: do_command(THD*) (sql_parse.cc:1089)
 
==1895==    by 0x6F787B: do_handle_one_connection(THD*) (sql_connect.cc:1347)
 
==1895==    by 0x6F7A04: handle_one_connection (sql_connect.cc:1258)
 
==1895==    by 0x9C2586: pfs_spawn_thread (pfs.cc:1860)
 
==1895==    by 0x4E3506F: start_thread (in /lib64/libpthread-2.9.so)
 
==1895==    by 0x62F913C: clone (in /lib64/libc-2.9.so)
 
==1895==  Address 0xbdd1d43 is 99 bytes inside a block of size 800 alloc'd
 
==1895==    at 0x4C25DD6: malloc (vg_replace_malloc.c:270)
 
==1895==    by 0xE6E11A: my_malloc (my_malloc.c:100)
 
==1895==    by 0x6D27DF: build_frm_image(THD*, char const*, HA_CREATE_INFO*, List<Create_field>&, unsigned int, st_key*, handler*) (unireg.cc:229)
 
==1895==    by 0x693C94: mysql_create_frm_image(THD*, char const*, char const*, HA_CREATE_INFO*, Alter_info*, int, st_key**, unsigned int*, st_mysql_const_unsigned_lex_string*) (sql_table.cc:4571)
 
==1895==    by 0x698CEA: create_table_impl(THD*, char const*, char const*, char const*, char const*, char const*, DDL_options_st, HA_CREATE_INFO*, Alter_info*, int, bool*, st_key**, unsigned int*, st_mysql_const_unsigned_lex_string*) (sql_table.cc:4803)
 
==1895==    by 0x69CFAD: mysql_alter_table(THD*, char*, char*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool) (sql_table.cc:8644)
 
==1895==    by 0x6FC459: Sql_cmd_alter_table::execute(THD*) (sql_alter.cc:329)
 
==1895==    by 0x5FAAC6: mysql_execute_command(THD*) (sql_parse.cc:5521)
 
==1895==    by 0x602039: mysql_parse(THD*, char*, unsigned int, Parser_state*) (sql_parse.cc:7024)
 
==1895==    by 0x604939: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1458)
 
==1895==    by 0x604F00: do_command(THD*) (sql_parse.cc:1089)
 
==1895==    by 0x6F787B: do_handle_one_connection(THD*) (sql_connect.cc:1347)
 
==1895==    by 0x6F7A04: handle_one_connection (sql_connect.cc:1258)
 
==1895==    by 0x9C2586: pfs_spawn_thread (pfs.cc:1860)
 
==1895==    by 0x4E3506F: start_thread (in /lib64/libpthread-2.9.so)
 
==1895==    by 0x62F913C: clone (in /lib64/libc-2.9.so)
 
==1895== Syscall param write(buf) points to uninitialised byte(s)
 
==1895==    at 0x4E3B7FB: ??? (in /lib64/libpthread-2.9.so)
 
==1895==    by 0xE72296: my_write (my_write.c:48)
 
==1895==    by 0x7AD6A5: writefrm(char const*, char const*, char const*, bool, unsigned char const*, unsigned long) (mysql_file.h:1131)
 
==1895==    by 0x6BF08B: TABLE_SHARE::write_frm_image(unsigned char const*, unsigned long) (table.cc:2202)
 
==1895==    by 0x6BFFBD: TABLE_SHARE::init_from_binary_frm_image(THD*, bool, unsigned char const*, unsigned long) (table.cc:928)
 
==1895==    by 0x7DFB51: ha_create_table(THD*, char const*, char const*, char const*, HA_CREATE_INFO*, st_mysql_const_unsigned_lex_string*) (handler.cc:4666)
 
==1895==    by 0x69D6DA: mysql_alter_table(THD*, char*, char*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool) (sql_table.cc:8840)
 
==1895==    by 0x6FC459: Sql_cmd_alter_table::execute(THD*) (sql_alter.cc:329)
 
==1895==    by 0x5FAAC6: mysql_execute_command(THD*) (sql_parse.cc:5521)
 
==1895==    by 0x602039: mysql_parse(THD*, char*, unsigned int, Parser_state*) (sql_parse.cc:7024)
 
==1895==    by 0x604939: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1458)
 
==1895==    by 0x604F00: do_command(THD*) (sql_parse.cc:1089)
 
==1895==    by 0x6F787B: do_handle_one_connection(THD*) (sql_connect.cc:1347)
 
==1895==    by 0x6F7A04: handle_one_connection (sql_connect.cc:1258)
 
==1895==    by 0x9C2586: pfs_spawn_thread (pfs.cc:1860)
 
==1895==    by 0x4E3506F: start_thread (in /lib64/libpthread-2.9.so)
 
==1895==  Address 0xbdd1d43 is 99 bytes inside a block of size 800 alloc'd
 
==1895==    at 0x4C25DD6: malloc (vg_replace_malloc.c:270)
 
==1895==    by 0xE6E11A: my_malloc (my_malloc.c:100)
 
==1895==    by 0x6D27DF: build_frm_image(THD*, char const*, HA_CREATE_INFO*, List<Create_field>&, unsigned int, st_key*, handler*) (unireg.cc:229)
 
==1895==    by 0x693C94: mysql_create_frm_image(THD*, char const*, char const*, HA_CREATE_INFO*, Alter_info*, int, st_key**, unsigned int*, st_mysql_const_unsigned_lex_string*) (sql_table.cc:4571)
 
==1895==    by 0x698CEA: create_table_impl(THD*, char const*, char const*, char const*, char const*, char const*, DDL_options_st, HA_CREATE_INFO*, Alter_info*, int, bool*, st_key**, unsigned int*, st_mysql_const_unsigned_lex_string*) (sql_table.cc:4803)
 
==1895==    by 0x69CFAD: mysql_alter_table(THD*, char*, char*, HA_CREATE_INFO*, TABLE_LIST*, Alter_info*, unsigned int, st_order*, bool) (sql_table.cc:8644)
 
==1895==    by 0x6FC459: Sql_cmd_alter_table::execute(THD*) (sql_alter.cc:329)
 
==1895==    by 0x5FAAC6: mysql_execute_command(THD*) (sql_parse.cc:5521)
 
==1895==    by 0x602039: mysql_parse(THD*, char*, unsigned int, Parser_state*) (sql_parse.cc:7024)
 
==1895==    by 0x604939: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1458)
 
==1895==    by 0x604F00: do_command(THD*) (sql_parse.cc:1089)
 
==1895==    by 0x6F787B: do_handle_one_connection(THD*) (sql_connect.cc:1347)
 
==1895==    by 0x6F7A04: handle_one_connection (sql_connect.cc:1258)
 
==1895==    by 0x9C2586: pfs_spawn_thread (pfs.cc:1860)
 
==1895==    by 0x4E3506F: start_thread (in /lib64/libpthread-2.9.so)
 
==1895==    by 0x62F913C: clone (in /lib64/libc-2.9.so)

This is most probably caused by MDEV-60

 Comments   
Comment by Alexey Botchkov [ 2015-03-12 ]

Fixing patch: http://lists.askmonty.org/pipermail/commits/2015-March/007577.html

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