SIGUSR1            94 daemons/attrd/attrd_utils.c     mainloop_destroy_signal(SIGUSR1);
SIGUSR1           275 daemons/controld/controld_control.c     mainloop_destroy_signal(SIGUSR1);
SIGUSR1          1040 lib/common/logging.c         mainloop_add_signal(SIGUSR1, crm_enable_blackbox);