port-arm/49107: hpcarm and ozaurus boot failed with "*ptep == opte" failed

[jun%soum.co.jp@localhost]

>Number:         49107
>Category:       port-arm
>Synopsis:       hpcarm and ozaurus boot failed with  "*ptep == opte" failed
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-arm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 13 04:50:00 +0000 2014
>Originator:     Jun Ebihara
>Release:        current 201408052120Z
>Organization:
SOUM Corporation
>Environment:
Zaurus: SL-C860 & hpcarm: WS011SH

>Description:
http://mail-index.netbsd.org/port-arm/2014/08/08/msg002562.html

On NetBSD-current 201408052120Z:
hpcarm and ozaurus boot failed in same place.
// I cant get no boot message with ezaurus.

init: trying /sbin/init
panic: kernel diagnostic assertion "*ptep == opte" failed: file "./arm/arm32/pma
p.h", line 575 0xa7de505b [*0xc0012004] != 0
Stopped in pid 1,1 (init) at  netbsd:cpu_Debugger+0x4:   bx r14
db> bt
0xc776ed14: netbsd:vpanic+0xc
0xc776ed2c: netbsf:kern_assert+0x40
0xc776ed6c: netbsd:pmap_zero_page_xscale+0xcc
0xc776edbc: netbsd:uvm_pagealloc_strat+0x458
0xc776ee04: netbsd:uvmfault_promote+0x21c
0xc776ef34: netbsd:uvm_fault_internal+0xa5c
0xc776efac: netbsd:data_abort_handler+0x200


>How-To-Repeat:
These ports can boot on 6.99.29/30.

dmesg of zaurus: 6.99.29 (GENERIC) #3: Thu Jan 23 09:55:16 JST 2014
https://github.com/ebijun/NetBSD/blob/master/dmesg/zaurus/SL-C860

dmesg of hpcarm: 6.99.30 (WZERO3) #1: Fri Jan 31 11:34:23 JST 2014
https://github.com/ebijun/NetBSD/blob/master/dmesg/hpcarm/WS011SH

Boot failed on 201408052120Z.
>Fix: