I'm seeing the nmbd daemon throw some errors in the log at startup and then exit. I'm using the April 21 i386 snapshot, and samba-3.5.8p2 package without any flavors, from ftp5.usa.openbsd.org. The config is the default that comes with the package. I started samba with /etc/rc.d/samba start.
Here's the /var/log/samba/log.nmbd: [2011/04/21 16:55:51, 0] /usr/obj/i386/samba-3.5.8/samba-3.5.8/source3/nmbd/nmbd.c:857(main) nmbd version 3.5.8 started. Copyright Andrew Tridgell and the Samba Team 1992-2010 [2011/04/21 16:55:51.638652, 0] /usr/obj/i386/samba-3.5.8/samba-3.5.8/source3/lib/util_sock.c:880(open_socket_in) bind failed on port 137 socket_addr = 10.0.0.255. Error = Can't assign requested address [2011/04/21 16:55:51.639142, 0] /usr/obj/i386/samba-3.5.8/samba-3.5.8/source3/nmbd/nmbd_subnetdb.c:118(make_subnet) nmbd_subnetdb:make_subnet() Failed to open nmb bcast socket on interface 10.0.0.255 for port 137. Error was Can't assign requested address [2011/04/21 16:55:51.639470, 0] /usr/obj/i386/samba-3.5.8/samba-3.5.8/source3/nmbd/nmbd.c:963(main) ERROR: Failed when creating subnet lists. Exiting.