> The patch is available at:
> http://lola.pin.lu/netbsd/kernel-patches/sa-pagefault-030915.patch

I've tested this with some applications: browsers work, my
favorite games too (prboom, sarien/larry).
What still has problems is xine -- it hangs after a couple of
seconds if I eg play an .mp3. The UI doesn't hang - I can still
exit regularily, but audio output and that spectrum-analyzer-like
thing stall. Looking with ktrace I found that it still writes
streams of zeroes to some file descriptor, probably audio.
If you have any hints how to track this down...

best regards
Matthias