Re: Immedate panic when booting on a 14" iBook G4 1.33GHz

[Michael <macallan%netbsd.org@localhost>]

Hello,

On Sun, 31 Jul 2016 11:39:54 +1000
Chris Baird <cjb%brushtail.apana.org.au@localhost> wrote:

> This happens for literally every combination of ofwboot.xcf and kernels
> versions, and every installation procedure I can get my hands on.
> 
> The system runs OSX10.4 without flakiness, and Debian 8.5 GNU/Systemd
> does install. (Although that's the only Linux distro that does.)
> 
> Ideas?

Not really.
We know there are certain powerbooks which do this ( there's a PR
somewhere about a 1GHz 12" PGB4 ) - I can't reproduce it on any of my
hardware, the closest I've got is a 12" iBook G4 / PowerBook6,3 :/

> ----------------------------------------------------------------------
> Apple PowerBook6,7 4.9.3f0 BootROM built on 07/05/05 at 11:14:11
> 
> [...]
> 
> 0> boot cd:,ofwboot.xcf hf:3,/netbsd load-size=11506 adler32=3bb0f405
> 
> [...]
> 
> >> NetBSD/macppc OpenFirmware Book, Revision 1.12
> 9153028+173176 [384384+378741]=0x99f8d0
>  start=0x100000
> No ADB support present, assumiung USB keyboard
> mem region 0 start=0 size=20000000
> mem region 1 start=20000000 size=10000000
> avail region 0 start=0x14000 size=0xdec000
> avail region 1 start=0xe1a000 size=0x2edd6000
> trap: kernel ISI by 0xff8472b0 (SRR1 0x40003030), lr: 0x1001ef
> panic: trap
> Stopped

This looks like we crashed somewhere in
arch/powerpc/oea/oea_machdep.c::oea_batinit(), in or shortly after the
call to mem_regions() ( which lives on powerpc/ofw_machdep.c ). I'd
sprinkle printf("%s %d\n", __func__, __LINE__); to narrow down where
exactly the crash happens. Also set options DEBUG for extra console
spam.

have fun
Michael