> Can confirm this problem in two of my machines, using same snapshot, > dmesg from one of them (I still can get the dmesg from the other machine): > > OpenBSD 6.3-current (GENERIC.MP) #39: Wed Jun 20 17:36:30 MDT 2018 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Please try a more recent snapshot. A fix was committed the day after: https://marc.info/?l=openbsd-cvs&m=152960326712291&w=2
