SIG_DFL           516 lib/common/logging.c             crm_signal_handler(nsig, SIG_DFL);
SIG_DFL           688 lib/services/services_linux.c     signal(SIGPIPE, SIG_DFL);
SIG_DFL          1660 tools/crm_mon.c         if (ncurses_winch_handler == SIG_DFL ||