I've cross built mvme68k on my amd64 and resultant kernels crash right
after they print the copyright notice.

An unending stream of
unexpected trap (vector offset f0) from 8a1a

is printed.  This happens with GENERIC and VME177 kernels.  The first
two copyrights are from VME177 and GENERIC respectively.

Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
     The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.

Loaded initial symtab at 0x1b49c8, strtab at 0x1f147c, # entries 4946
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
     The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.

Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
     The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.

NetBSD 1.6L (VME177) #0: Mon Jan 13 01:25:47 PST 2003
     matt@tbird.local:/u1/mvme68k/obj/sys/arch/mvme68k/compile/VME177
Motorola MVME-177: 50.0MHz MC68060 CPU+MMU+FPU, 8k+8k on-chip physical I/D caches
total memory = 98304 KB
avail memory = 88856 KB
using 1254 buffers containing 5016 KB of memory
mainbus0 (root)
pcctwo0 at mainbus0 address 0xfff42000: Peripheral Channel Controller 
(PCCchip2), Rev 0
clock0 at pcctwo0 offset 0x0 ipl 5: delay_divisor 20
clmpcc0 at pcctwo0 offset 0x3000 ipl 4: Cirrus Logic CD2401 Serial Controller
clmpcc0: 4 channels available, console on channel 0.
ie0 at pcctwo0 offset 0x4000 ipl 3 address 08:00:3e:23:ae:85, type onboard
osiop0 at pcctwo0 offset 0x5000 ipl 2: NCR53C710 rev 2, 50MHz, SCSI ID 7
scsibus0 at osiop0: 8 targets, 8 luns per target
lpt0 at pcctwo0 offset 0x0 ipl 1: PCCchip2 Parallel Printer
vmetwo0 at mainbus0 address 0xfff40000: Type 2 VMEchip, scon jumper enabled
vme0 at vmetwo0
timekeeper0 at mainbus0 address 0xfffc0000: mk48t08 Time-Keeper RAM
timekeeper0: 8192 bytes NVRAM plus Realtime Clock
memc0 at mainbus0 address 0xfff43000: 64MB ECC Memory Controller Chip (Rev 0)
memc0: Base Address: 0x0, Fast RAM Read Disabled
memc0: Logging ECC errors at ipl 6
memc1 at mainbus0 address 0xfff43100: 32MB ECC Memory Controller Chip (Rev 0)
memc1: Base Address: 0x4000000, Fast RAM Read Disabled
memc1: Logging ECC errors at ipl 6
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus0 target 0 lun 0: <SEAGATE, ST39173WC, 6244> disk fixed
sd0: 8683 MB, 7501 cyl, 10 head, 237 sec, 512 bytes/sect x 17783240 sectors
sd0: sync (100.0ns offset 8), 8-bit (10.000MB/s) transfers
st0 at scsibus0 target 4 lun 0: <ARCHIVE, VIPER TDC 3800, =08:> tape removable
st0: drive empty
st0: sync (240.0ns offset 8), 8-bit (4.166MB/s) transfers

-- 
Matt Thomas                     email: matt@3am-software.com
3am Software Foundry              www: http://3am-software.com/bio/matt/
Cupertino, CA              disclaimer: I avow all knowledge of this message.