Hi,
I cannot answer, but it is not a good idea to use netbsd-7. I
experiment a lot of disk corruption (ffs2 with log) since my last
upgrade of netbsd-7 (8th of january, 2015, amd64). I have downgraded
my system to netbsd-7-0 (cvs).
It's funny you say that - I've had all sorts of problems with WAPBL on
netbsd-7 on PowerPC, and even had one lockup (without console, though)
of my Alpha that I was guessing might've been WAPBL related. I don't
have enough data to talk about Alpha, but I can say with certainty that
WAPBL on PowerPC is broken.