Hi, I'm still having trouble booting a -current kernel with ACPI and
MULTIPROCESSOR on my Tyan S2895:
http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=33927

boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
cpu1: prelint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
cpu1: prelint1 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
cpu1: timer0 200c0<vector=c0,delmode=0,dest=0> 0<target=0>
cpu1: pcint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
cpu1: lint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
cpu1: lint1 400<vector=0,delmode=4,dest=0> 0<target=0>
cpu1: err0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
cpu1: CPU 1 running
kernel: double fault trap, code=0
Stopped in pid 14.1 (pagedaemon) at	netbsd:Xintr_legacy7+0x52:	movq %rdi,0(%rsp)
Xintr_legacy7() at netbsd:Xintr_legacy7+0x52

I guess it's running out of stack for some reason, but I don't
understand the CPU setup code at all :) Is there anything I can do to
help figure out what's going on with this?