Does the NetBSD userland have problems with large files? I've got this
file that's a bit over 4 gigs:

-rw-r-----   1 khym  wheel  4311982080 Feb 25 13:53 jeff.img

but everything seems to think it's 17014784 bytes long (which is the
file size mod 4 gigs)... for example:

yerfable ~/jeff> wc jeff.img
  166076  846517 17014784 jeff.img
yerfable ~/jeff> cat jeff.img>abc ; ls -l abc
-rw-r-----  1 khym  wheel  17014784 Feb 25 14:09 abc
yerfable ~/jeff> dd if=jeff.img of=abc
33232+0 records in
33232+0 records out
17014784 bytes transferred in 2 secs (8507392 bytes/sec)

I'm even running on NetBSD/alpha, with nice 64-bitness :) (1.5R Feb 12
kernel, Feb 3 userland)