I just got a different panic:

uvm_fault(0xf636a870, 0x80000000, 0, 3) -> 1
kernel: page fault trap, code=0
Stopped in rc5des at    timeout+0x75:   movl    %ecx,0xc(%ebx)
db> trace
kernel: privileged instruction fault trap, code=0
Faulted in DDB; continuing...

- This may be old hat, as uvm changed since I built that kernel 2 days ago.
- How do I get a crash dump? ISTR call something, but I can't remember the
  name of the function (something for http://www.netbsd.org/Documentation/
    kernel/index.html perchance?)

Cheers,

Patrick