port-macppc/56089: ofwboot fails to load G5 kernel

[martin%NetBSD.org@localhost]

>Number:         56089
>Category:       port-macppc
>Synopsis:       ofwboot fails to load G5 kernel
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Apr 02 09:00:00 +0000 2021
>Originator:     Martin Husemann
>Release:        NetBSD 9.99.81
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD big-apple.aprisoft.de 9.99.81 NetBSD 9.99.81 (POWERMAC_G5.MP) #12: Fri Apr 2 08:55:57 CEST 2021 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/macppc/compile/POWERMAC_G5.MP macppc
Architecture: powerpc
Machine: macppc
>Description:

Trying to load my kernel via ofwboot fails:

Apple PowerMac7,3 5.1.8f7 BootROM built on 10/26/04 at 16:30:32
Copyright 1994-2004 Apple Computer, Inc.
All Rights Reserved.

Welcome to Open Firmware, the system time and date is: 07:01:48 04/02/2021

To continue booting, type "mac-boot" and press return.
To shut down, type "shut-down" and press return.

 ok
0 > boot sd1:1,ofwboot.xcf sd1:/netbsd load-size=7936f adler32=3cd24efd 

loading XCOFF

tsize=10070 dsize=268 bsize=28f0 entry=e00000 
SECTIONS:
.text    00e00000 00e00000 00010070 00001000
.pad     00e10064 00e10064 00000f90 00011070
.data    00e11000 00e11000 00000268 00012000
.bss     00e11268 00e11268 000028f0 00000000
.debug_l 00000000 00000000 00012008 00012268
.debug_s 00000000 00000000 000050ab 00024270
.gnu.att 00000000 00000000 00000010 0002931b
.ident   00000000 00000000 00000076 0002932b
.debug_i 00000000 00000000 0002c558 000293a1
.debug_a 00000000 00000000 00008537 000558f9
.debug_l 00000000 00000000 00013f1c 0005de30
.debug_a 00000000 00000000 000008e8 00071d4c
.debug_r 00000000 00000000 00000ee8 00072634
.debug_f 00000000 00000000 0000277c 0007351c
loading .text, done..
loading .data, done..
clearing .bss, done..

>> NetBSD/macppc OpenFirmware Boot, Revision 1.14 (Tue Mar 30 19:45:04 UTC 2021)
>> Open Firmware version 4.x
>> Open Firmware running in virtual-mode.
@@@@@@@@@5206364!!! CLAIM PHYS 0x100000 RETURNED 0x0
!!! FAILED TO CLAIM PHYS 0x100000 size 0x4f8000
read section
 start=0x0

Invalid memory access at   %SRR0: 00000000.00e0e128   %SRR1: 10000000.00003030 
 ok


Booting the kernel directly works (but then it misses symbols).


>How-To-Repeat:
s/a

>Fix:
n/a