net/samba4 is in the ports tree but not currently enabled in the build, we're still only using samba 3.x for various reasons, but unfortunately samba 3 is getting decreasingly useful as more Windows setups move to newer versions.
One of the issues is that startup of samba4 on OpenBSD is very slow indeed, seemingly before control is transferred to the program. From the LD_DEBUG output with timestamps (using the very handy ts(1) from "moreutils"): # LD_DEBUG=1 smbd -D 2>&1 | ts %.s <..snip..> 1433498513.546306 examining: '/usr/local/lib/libhogweed.so.1.1' 1433498513.546323 loading: libnettle.so.1.2 required by /usr/local/lib/libhogweed.so.1.1 1433498513.546339 loading: libgmp.so.9.0 required by /usr/local/lib/libhogweed.so.1.1 1433498513.546354 linking dep /usr/local/lib/libnettle.so.1.2 as child of /usr/local/lib/libhogweed.so.1.1 1433498513.546370 linking dep /usr/local/lib/libgmp.so.9.0 as child of /usr/local/lib/libhogweed.so.1.1 1433498513.546386 examining: '/usr/local/lib/libgmp.so.9.0' 1433498584.125659 flags /usr/libexec/ld.so = 0x0 1433498584.125783 obj /usr/libexec/ld.so has smbd as head 1433498584.149165 relocation took 0.023504 1433498584.149215 Start End Type Open Ref GrpRef Name 1433498584.149249 000004bec6500000 000004bec6910000 exe 1 0 0 smbd 1433498584.149272 000004c19b74e000 000004c19bb60000 rlib 0 107 0 /usr/lib/libpthread.so.19.0 1433498584.149293 000004c18f3df000 000004c18f812000 rlib 0 75 0 /usr/local/lib/libsamba-util.so.0.0 <..snip..> - a 74 second delay after "examining: '/usr/local/lib/libgmp.so.9.0'". Does anyone have suggestions for finding out what's going on here? Full text snipped from the above is at http://junkpile.org/samba4-lddebug.txt The simpler programs in samba4 are also slower than expected to startup (smbclient --version takes 3-4 seconds) but I haven't identified others which are quite as bad as smbd yet.