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very early crash with NetBSD-5.1-STABLE on embedded server board

I'm seeing a very early crash with NetBSD-5.1-STABLE on embedded server

This is a somewhat customized version of 5.1, built from the head of the
netbsd-5 branch.  The install media is using a static (no LKMs, not
modular) kernel based on GENERIC, but of course with a memory disk for
the installer to run in.

The same crash apparently happens regardless of whether ACPI (and/or
SMP) are enabled or not.  (i.e. booting with flags "-12" didn't change

Similar crashes happened with netbsd-4, but only with the GENERIC.MP
kernel.  The INSTALLER kernel, and the customized system-specific kernel
both work fine.

Unfortunately I don't have direct access to one these systems, or even a
console connection, at this point.  I should be able to get a trace-back
soon though, and in the mean time I'll build an even more customized
install media using a kernel configuration that was known to work with
the netbsd-4 branch.

booting cd0a:netbsd
11605916+13360612+708240 [523120+517114]=0x197bf84
initial mem_cluster_cnt: 0
    addr 0x0  size 0x9cc00  type 0x1
    addr 0x9cc00  size 0x3400  type 0x2
    addr 0xe0000  size 0x20000  type 0x2
    addr 0x100000  size 0x7f2e4400  type 0x1
    addr 0x7f3e4400  size 0x4800  type 0x3
    addr 0x7f3e8c00  size 0x400  type 0x4
    addr 0x7f3e9000  size 0x417000  type 0x2
    addr 0xfff00000  size 0x100000  type 0x2
final mem_cluster_cnt: 2
KVA space seems to be: 1041334272
buf_memcalc: bufcache is preset to 5%
buf_memcalc: bufmem calculated to be to 106717184 bytes
kernel text is mapped with 3 large pages and 19 normal pages
loading 0x7000-0x9c000 (0x7-0x9c)
loading 0x1a88000-0x7f3e4000 (0x1a88-0x7f3e4)
Loaded initial symtab at 0xc197dc74, strtab at 0xc19fdb88, # entries 32676, 
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010
    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 5.1_STABLE (GENERIC.INSTALL) #2: Wed Mar 16 02:25:57 PDT 2011
total memory = 2035 MB
avail memory = 1974 MB
buf_memcalc: bufcache is preset to 5%
buf_memcalc: bufmem calculated to be to 106717184 bytes
nbuf (bufhashtbl size) = 34738
rnd: initialised (4096) with counter
RTC BIOS diagnostic error 8<fixed_disk>
Generic PC
PCI BIOS rev. 2.1 found at 0xff686
uvm_fault(0xc1941000, 0xf1000, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip c1ae7617 cs 8 eflags 10202 cr2 f1d39 ilevel 8
kernel: supervisor trap page fault, code=0
Stopped in pid 0.1 (system) at  0xc1ae7617:     repe movsb      (%esi),%es:(%edi

                                                Greg A. Woods
                                                Planix, Inc.

<>       +1 250 762-7675

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