https://bugs.openldap.org/show_bug.cgi?id=9277
--- Comment #2 from Michael Ströder michael@stroeder.com --- FWIW with loglevel conns these messages appear in syslog with:
slapd starting daemon: added 6r listener=(nil) daemon: added 9r listener=0x564a25cd20c0 daemon: added 10r listener=0x564a25cd2180 daemon: added 11r listener=0x564a25cd2240 daemon: added 12r listener=0x564a25cd2300 daemon: added 13r listener=0x564a25cd23c0 daemon: epoll: listen=9 active_threads=0 tvp=zero daemon: epoll: listen=10 active_threads=0 tvp=zero daemon: epoll: listen=11 active_threads=0 tvp=zero daemon: epoll: listen=12 active_threads=0 tvp=zero daemon: epoll: listen=13 active_threads=0 tvp=zero daemon: activity on 1 descriptor daemon: activity on: 2020-06-15T17:32:14.014203+02:00 ae-dir-suse-p1 ae-slapd[11935]: daemon: epoll: listen=9 active_threads=0 tvp=zero daemon: epoll: listen=10 active_threads=0 tvp=zero daemon: epoll: listen=11 active_threads=0 tvp=zero daemon: epoll: listen=12 active_threads=0 tvp=zero daemon: epoll: listen=13 active_threads=0 tvp=zero daemon: activity on 1 descriptor daemon: activity on: 2020-06-15T17:32:15.028227+02:00 ae-dir-suse-p1 ae-slapd[11935]: daemon: epoll: listen=9 active_threads=0 tvp=zero daemon: epoll: listen=10 active_threads=0 tvp=zero daemon: epoll: listen=11 active_threads=0 tvp=zero daemon: epoll: listen=12 busy daemon: epoll: listen=13 active_threads=0 tvp=zero daemon: epoll: listen=9 active_threads=0 tvp=zero daemon: epoll: listen=10 active_threads=0 tvp=zero daemon: epoll: listen=11 active_threads=0 tvp=zero daemon: epoll: listen=12 busy daemon: epoll: listen=13 active_threads=0 tvp=zero daemon: epoll: listen=9 active_threads=0 tvp=zero daemon: epoll: listen=10 active_threads=0 tvp=zero daemon: epoll: listen=11 active_threads=0 tvp=zero daemon: epoll: listen=12 busy daemon: epoll: listen=13 active_threads=0 tvp=zero daemon: epoll: listen=9 active_threads=0 tvp=zero daemon: epoll: listen=10 active_threads=0 tvp=zero daemon: epoll: listen=11 active_threads=0 tvp=zero daemon: epoll: listen=12 busy daemon: epoll: listen=13 active_threads=0 tvp=zero [..endless repeating..]