ONIGERR_STACK_BUG 61 ext/mbstring/oniguruma/regerror.c case ONIGERR_STACK_BUG: ONIGERR_STACK_BUG 2727 ext/mbstring/oniguruma/regexec.c return ONIGERR_STACK_BUG; ONIGERR_STACK_BUG 65 ext/mbstring/oniguruma/regposix.c { ONIGERR_STACK_BUG, REG_EONIG_INTERNAL },