https://bugs.openldap.org/show_bug.cgi?id=9278
--- Comment #9 from Quanah Gibson-Mount quanah@openldap.org --- mdb.master
Commits: • 2fd44e32 by Howard Chu at 2020-06-16T19:49:14+01:00 ITS#9278 fix robust mutex cleanup for FreeBSD
FreeBSD 11 supports robust process-shared POSIX mutexes, but requires them to be explicitly destroyed before munmap