panic on boot on virtualbox

[Arto Huusko <arto.huusko%pp2.inet.fi@localhost>]

Hello,

NetBSD/amd64 generic kernel from sources updated a few hours ago panics 
immediately
on boot with (copied by hand):

uvm_fault(0xffffffff80d9e1a0, 0x0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff806b9ffe cs 8 rflags 10246 cr2 0 cpl 8 rsp 
ffffffff80f83b60

backtrace is

vmem_alloc
uvm_km_kmem_alloc
kmem_intr_alloc
kmem_intr_zalloc
i686_mtrr_init_first
cpu_init
cpu_attach
config_attach_loc
mpacpi_config_cpu
acpi_madt_walk
mpacpi_scan_apics
mainbus_attach
config_attach_loc
cpu_configure
main