Re: 10.0 install CD fails in qemu with memory > 256 Mb

[Michael <macallan1888%gmail.com@localhost>]

Hello,

On Mon, 20 May 2024 01:10:27 +0300
Andrew Randrianasulu <randrianasulu%gmail.com@localhost> wrote:

> During this effort I tried to boot netbsd 10.0 install cd  but
> initially it failed:
> 
> /dev/shm/qemu-9.0.0/build/qemu-system-ppc -m 1024 -M mac99,via=pmu
> -smp 1  -cdrom ~/ISO/NetBSD-10.0-macppc.iso -bios
> /dev/shm/openbios-qemu.elf -boot d -prom-env
> 'boot-device=cd:,ofwboot.xcf /netbsd.macppc' -nographic
> 
> ========
> 
> >> 0x00770361  02 00 60 10 00 00 00 00 80 00 00 00 00 00 00 00  ..`.............
> >> 0x00770371  00 08 00 00 __ __ __ __ __ __ __ __ __ __ __ __  ....  
> [   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
> [   1.0000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
> [   1.0000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
> [   1.0000000]     2024
> [   1.0000000]     The NetBSD Foundation, Inc.  All rights reserved.
> [   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
> [   1.0000000]     The Regents of the University of California.  All
> rights reserved.
> 
> [   1.0000000] NetBSD 10.0 (INSTALL) #0: Thu Mar 28 08:33:33 UTC 2024
> [   1.0000000]
> mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/macppc/compile/INSTALL
> [   1.0000000] total memory = 1024 MB
> [   1.0000000] oea_startup: failed to allocate DEAD ZONE: error=12
> [   1.0000000] avail memory = 978 MB
> >> finddevice("/openprom") = [   1.0000000] trap: kernel read DSI trap @ 0x3fc5a7a0 by 0xfff0bf24 (DSISR 0x40000000, err=14), lr 0xfff0bf20  
> [   1.0000000] panic: trap
> [   1.0000000] trap: pid 0.0 (system): kernel ALI trap @ 0x32 by
> 0x117680 (DSISR 0x40000140)
> [   1.0000000] Skipping crash dump on recursive panic
> [   1.0000000] panic: trap
> [   1.0000000] rebooting
> 
> [   1.0000000] trap: kernel read DSI trap @ 0x3fee2000 by 0x39ef80
> (DSISR 0x40000000, err=14), lr 0x104fb4
> [   1.0000000] Skipping crash dump on recursive panic
> [   1.0000000] panic: trap
> [   1.0000000] rebooting
> 
> {repeats a lot}
> 
> =====
> 
> but reducing memory to 256 mb (or booting with default 128) gives me a
> shell even with my hacked qemu!

That's rather early. What's in the available property under /memory?
Or rather, could you post the entire OF device tree, and maybe just
/memory with 1GB enabled?

The only references to /openboot I could find are in ofwboot, which
should be long done at that point, and sys/dev/ofw/ofw_sysctl.c, which
tries to set up sysctl nodes with model and version info. Since qemu
uses its own OF variant - does /openboot exist? Does OF_fiinddevice()
return something weird on failure?

> So, i wonder why cpu0  speed seen as 0 mhz ?

IIRC that comes directly from the clock-frequency property under /cpus/*

> And why  NetBSD 10.0  fails with mem > 256 mb? Does it work on real G4
> machines with such mem > 256Mb ?

Most of my macppcs have a lot more than 256MB.

Here's a TiBook:
[     1.000000] NetBSD 10.99.10 (GLENMORANGIE) #119: Sun May  5 21:59:44 EDT 2024
[     1.000000]         ml@glenmorangie:/home/build/obj_clang/sys/arch/macppc/compile/GLENMORANGIE
[     1.000000] total memory = 2048 MB
[     1.000000] oea_startup: failed to allocate DEAD ZONE: error=12
[     1.000000] avail memory = 1976 MB
[     1.000000] timecounter: Timecounters tick every 10.000 msec
[     1.000000] found openpic PIC at 80040000
[     1.000000] OpenPIC Version 1.2: Supports 4 CPUs and 64 interrupt sources.
[     1.000000] bootpath: /pci@f4000000/ata-6@d/disk@0:0/netbsd
[     1.000000] mainbus0 (root)
[     1.000000] cpu0 at mainbus0: 7447A (Revision 1.2), ID 0 (primary)
[     1.000000] cpu0: HID0 0x84d0c1bc<EMCP,TBEN,HIGH_BAT_EN,NAP,DPM,ICE,DCE,XBSEN,SGE,BTIC,LRSTK,FOLD,BHT>, powersave: 1
[     1.000000] cpu0: 1671.82 MHz, 512KB L2 cache no parity

... and an iMac G5:
[     1.000000] NetBSD 10.99.10 (TOBERMORY) #49: Sun Mar 31 22:41:17 EDT 2024
[     1.000000]         ml@tobermory:/home/build/obj_clang/sys/arch/macppc/compile/TOBERMORY
[     1.000000] total memory = 2048 MB
[     1.000000] oea_startup: failed to allocate DEAD ZONE: error=12
[     1.000000] avail memory = 1961 MB
[     1.000000] timecounter: Timecounters tick every 10.000 msec
[     1.000000] found openpic PIC at 80040000
[     1.000000] OpenPIC Version 1.2: Supports 4 CPUs and 124 interrupt sources.
[     1.000000] bootpath: /ht/pci@3/k2-sata-root/k2-sata@0/disk@0:0/netbsd
[     1.000000] mainbus0 (root)
[     1.000000] cpu0 at mainbus0: 970FX (Revision 3.0), ID 0 (primary)
[     1.000000] cpu0: HID0 0x513081<NAP,DPM,NHR,TBCTRL,EXTBEN,ENATTN> 0x80000000<EMCP>, powersave: 1


have fun
Michael