Greetings,
The mmap message does not show up any more, but if I try to start either wine or winecfg, wine process freezes taking up all the CPU.
Please, take a look at the wine package in NetBSD Package Collection (www.pkgsrc.org in the emulators/wine folder). You can try and build it on a NetBSD, and check the patches applied (located in emulators/wine/patches). There is one important patch: patch-af, which deals with changes to the signalling in the recent NetBSD versions.
Kind regards, Adam