And again, at almost the same time ... kernel panic!!!
May 17 03:06:18 dns0 syslogd: kernel boot file is /boot/kernel/kernel
May 17 03:06:18 dns0 kernel: panic: softdep_deallocate_dependencies: dangling
deps
May 17 03:06:18 dns0 kernel: cpuid = 1
May 17 03:06:18 dns0 kernel: KDB: stack backtrace:
FreeBSD dns0 11.0-CURRENT FreeBSD 11.0-CURRENT #1 r299817M: Sun May 15 18:55:50
AEST 2016 root@dns0:/usr/obj/usr/src/sys/GENERIC amd64
===8<===
May 16 03:03:48 dns0 syslogd: kernel boot file is /boot/kernel/kernel
May 16 03:03:48 dns0 kernel: panic: softdep_deallocate_dependencies: dangling