10-current sheevaplug boot fails

[Ronald Klop]

On Mon, 01 Jul 2013 10:40:20 +0200, Manuel Diaz Ferreiro  
<manudferreiro at gmail.com> wrote:

> Try adding:
> 	
> 	printf("%s: frame=%p\n", __func__, frame);
> 	just before the !INKERNEL(frame) check
> 	in sys/arm/arm/stack_machdep.c.

Thanks for your answer.

I don't see a !INKERNEL check in that file. Only a 'while  
(INKERNEL(frame))' check.
I put it above the 'if !def EABI && !def clang' statement.

Without INVARIANTS/DIAGNOSTICS/etc. it boots until this:
usbus0: EHCI version 1.0
usbus0: set host controller mode
usbus0 on ehci0
cryptosoft0: <software crypto>
Timecounters tick every 1.000 msec
ipfw2 initialized, divert loadable, nat loadable, default to accept,  
logging disabled
usbus0: 480Mbps High Speed USB v2.0
Fatal kernel mode data abort: 'Alignment Fault 1'
trapframe: 0xde21cb90
FSR=00000001, FAR=de21cc0c, spsr=60000093
r0 =0002ceac, r1 =ffffffff, r2 =0000001c, r3 =0002ceac
r4 =de21cc04, r5 =de21cc0c, r6 =00000000, r7 =c0cab4c0
r8 =798ee230, r9 =00000015, r10=00000001, r11=de21cbfc
r12=c0bb2370, ssp=de21cbdc, slr=c0bd1b18, pc =c0a62a1c

[ thread pid 12 tid 100006 ]
Stopped at      binuptime+0x70: und     0xe1c500d0
db>


With INVARIANTS it gives this:
## Starting application at 0x00900000 ...
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2013 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 10.0-CURRENT #8: Tue Jul  2 00:09:03 CEST 2013
     root at mailjail.klop.ws:/usr/obj/arm.arm/usr/src/sys/SHEEVAPLUG arm
FreeBSD clang version 3.3 (tags/RELEASE_33/final 183502) 20130610
WARNING: WITNESS option enabled, expect reduced performance.
WARNING: DIAGNOSTIC option enabled, expect reduced performance.
panic: lock "vm map (user)" 0xc0fca050 already initialized
KDB: enter: panic

So no sign of the added printf with the frame pointer.

This was tested at a just svn updated 10-CURRENT using EABI and clang.  
These are the defaults, aren't they?
Any ideas?

Ronald.