rpl.rpl_gtid_stop_start fails with Valgrind in buildbot and outside

rpl.rpl_gtid_stop_start 'innodb,mix'     [ fail ]  Found warnings/errors in server log file!

        Test ended at 2017-05-08 20:40:06

line

==26785== Conditional jump or move depends on uninitialised value(s)

==26785==    at 0xB37740: find_stage_class(unsigned int) (pfs_instr_class.cc:1080)

==26785==    by 0xB65D85: start_stage_v1 (pfs.cc:4307)

==26785==    by 0x5D1E57: inline_mysql_set_stage(unsigned int, char const*, int) (mysql_stage.h:65)

==26785==    by 0x5E3823: THD::enter_stage(PSI_stage_info_v1 const*, char const*, char const*, unsigned int) (sql_class.h:2184)

==26785==    by 0x67D897: THD::exit_cond(PSI_stage_info_v1 const*, char const*, char const*, int) (sql_class.h:3160)

==26785==    by 0x600FBC: start_slave_thread(unsigned int, void* (*)(void*), st_mysql_mutex*, st_mysql_mutex*, st_mysql_cond*, unsigned int volatile*, unsigned long volatile*, Master_info*) (slave.cc:966)

==26785==    by 0x60131D: start_slave_threads(THD*, bool, bool, Master_info*, char const*, char const*, int) (slave.cc:1053)

==26785==    by 0x5FFDCC: init_slave() (slave.cc:531)

==26785==    by 0x5DBA8D: mysqld_main(int, char**) (mysqld.cc:5968)

==26785==    by 0x5D02EF: main (main.cc:25)

==26957== Conditional jump or move depends on uninitialised value(s)

==26957==    at 0xB37740: find_stage_class(unsigned int) (pfs_instr_class.cc:1080)

==26957==    by 0xB65D85: start_stage_v1 (pfs.cc:4307)

==26957==    by 0x5D1E57: inline_mysql_set_stage(unsigned int, char const*, int) (mysql_stage.h:65)

==26957==    by 0x5E3823: THD::enter_stage(PSI_stage_info_v1 const*, char const*, char const*, unsigned int) (sql_class.h:2184)

==26957==    by 0x67D897: THD::exit_cond(PSI_stage_info_v1 const*, char const*, char const*, int) (sql_class.h:3160)

==26957==    by 0x600FBC: start_slave_thread(unsigned int, void* (*)(void*), st_mysql_mutex*, st_mysql_mutex*, st_mysql_cond*, unsigned int volatile*, unsigned long volatile*, Master_info*) (slave.cc:966)

==26957==    by 0x60131D: start_slave_threads(THD*, bool, bool, Master_info*, char const*, char const*, int) (slave.cc:1053)

==26957==    by 0x5FFDCC: init_slave() (slave.cc:531)

==26957==    by 0x5DBA8D: mysqld_main(int, char**) (mysqld.cc:5968)

==26957==    by 0x5D02EF: main (main.cc:25)

^ Found warnings in /data/bld/10.2-valgrind/mysql-test/var/log/mysqld.2.err