main.sp_sync fails in buildbot with valgrind

main.sp_sync                             w6 [ fail ]  Found warnings/errors in server log file!

        Test ended at 2015-04-04 07:55:31

line

==32018== Thread 6:

==32018== Conditional jump or move depends on uninitialised value(s)

==32018==    at 0x5EB69E: lex_end(LEX*) (sql_lex.cc:550)

==32018==    by 0x92AAB9: db_load_routine(THD*, stored_procedure_type, sp_name*, sp_head**, unsigned long long, char const*, char const*, char const*, st_sp_chistics&, st_mysql_lex_string*, st_mysql_lex_string*, long long, long long, Stored_program_creation_ctx*) (sp.cc:911)

==32018==    by 0x92B1D3: db_find_routine(THD*, stored_procedure_type, sp_name*, sp_head**) (sp.cc:665)

==32018==    by 0x92B36C: sp_cache_routine(THD*, stored_procedure_type, sp_name*, bool, sp_head**) (sp.cc:2122)

==32018==    by 0x92B506: sp_cache_routine(THD*, Sroutine_hash_entry*, bool, sp_head**) (sp.cc:2075)

==32018==    by 0x59E019: open_and_process_routine(THD*, Query_tables_list*, Sroutine_hash_entry*, Prelocking_strategy*, bool, Open_table_context*, bool*, bool*) (sql_base.cc:3725)

==32018==    by 0x5A9C3C: open_tables(THD*, DDL_options_st const&, TABLE_LIST**, unsigned int*, unsigned int, Prelocking_strategy*) (sql_base.cc:4565)

==32018==    by 0x5ABC93: open_and_lock_tables(THD*, DDL_options_st const&, TABLE_LIST*, bool, unsigned int, Prelocking_strategy*) (sql_base.cc:5150)

==32018==    by 0x608A26: open_and_lock_tables(THD*, TABLE_LIST*, bool, unsigned int) (sql_base.h:526)

==32018==    by 0x5FF2F6: mysql_execute_command(THD*) (sql_parse.cc:5122)

==32018==    by 0x603E69: mysql_parse(THD*, char*, unsigned int, Parser_state*) (sql_parse.cc:7165)

==32018==    by 0x607091: dispatch_command(enum_server_command, THD*, char*, unsigned int) (sql_parse.cc:1462)

==32018==    by 0x60761A: do_command(THD*) (sql_parse.cc:1090)

==32018==    by 0x6FAF1B: do_handle_one_connection(THD*) (sql_connect.cc:1347)

==32018==    by 0x6FB0C4: handle_one_connection (sql_connect.cc:1258)

==32018==    by 0x9C7E86: pfs_spawn_thread (pfs.cc:1860)

^ Found warnings in /dev/shm/var_auto_Axsl/6/log/mysqld.1.err

ok