Re: [OpenBIOS] Fwd: [Bug 623852] Re: PPC emulation loops on booting a FreeBSD kernel

[Nigel Horne]

I have been asked to forward this to you - could you help, please?

Thanks!

-Nigel
> -------- Original Message --------
>
> It looks like a firmware issue. Please report this to
> [e-mail]. You get the output below by using the -nographic
> option.
> > > =============================================================
> > >  OpenBIOS 1.0 [Aug 17 2010 14:41]
> > >  Configuration device id QEMU version 1 machine id 2
> > >  CPUs: 1
> > >  Memory: 512M
> > >  UUID: 00000000-0000-0000-0000-000000000000
> > >  CPU type PowerPC,750
>
> Welcome to OpenBIOS v1.0 built on Aug 17 2010 14:41
> Trying cd:,\:tbxi...
> Consoles: Open Firmware console
>
> FreeBSD/powerpc Open Firmware loader, Revision 0.1
> ([e-mail], Sun Jul 18 04:50:11 UTC 2010)
> Memory: 524288KB
> Booted from: cd
>
> Loading /boot/defaults/loader.conf
> /boot/kernel/kernel data=0x72c6b8+0x3e280 syms=[0x4+0x5ac10+0x4+0x7d8ad]
> /
> Hit [Enter] to boot immediately, or any other key for command prompt.
> Booting [/boot/kernel/kernel]...
> Kernel entry at 0x100100 ...
> panic: OFW translations above 32-bit boundary!
> Uptime: 1s

Fwd: [Bug 623852] Re: PPC emulation loops on booting a FreeBSD kernel

[Andreas Färber]

Am 25.08.2010 um 12:22 schrieb Nigel Horne:
> I have been asked to forward this to you - could you help, please?

Without the QEMU command line and a link to the FreeBSD .iso that's  
rather hard... "above 32-bit boundary" sounds like ppc64, but the  
PowerPC,750 (G3) is 32-bit only. Could be some QEMU guest vs. host  
bitness issue, or just the bootloader going haywire due to bugs in  
OpenBIOS.

Last time I poked at OpenBIOS/ppc I noticed that ofmem's claim wasn't  
working properly, which caused the Haiku bootloader to lock up.

Andreas
> > -------- Original Message --------
> >
> > It looks like a firmware issue. Please report this to
> > [e-mail]. You get the output below by using the - 
> > nographic
> > option.
> > > > =============================================================
> > > > OpenBIOS 1.0 [Aug 17 2010 14:41]
> > > > Configuration device id QEMU version 1 machine id 2
> > > > CPUs: 1
> > > > Memory: 512M
> > > > UUID: 00000000-0000-0000-0000-000000000000
> > > > CPU type PowerPC,750
> >
> > Welcome to OpenBIOS v1.0 built on Aug 17 2010 14:41
> > Trying cd:,\:tbxi...
> > Consoles: Open Firmware console
> >
> > FreeBSD/powerpc Open Firmware loader, Revision 0.1
> > ([e-mail], Sun Jul 18 04:50:11 UTC 2010)
> > Memory: 524288KB
> > Booted from: cd
> >
> > Loading /boot/defaults/loader.conf
> > /boot/kernel/kernel data=0x72c6b8+0x3e280  
> > syms=[0x4+0x5ac10+0x4+0x7d8ad]
> > /
> > Hit [Enter] to boot immediately, or any other key for command prompt.
> > Booting [/boot/kernel/kernel]...
> > Kernel entry at 0x100100 ...
> > panic: OFW translations above 32-bit boundary!
> > Uptime: 1s

Fwd: [Bug 623852] Re: PPC emulation loops on booting a FreeBSD kernel

[Nigel Horne]

Andreas,

Thank you for the reply.
> Without the QEMU command line and a link to the FreeBSD .iso that's 
> rather hard... "above 32-bit boundary" sounds like ppc64, but the 
> PowerPC,750 (G3) is 32-bit only. Could be some QEMU guest vs. host 
> bitness issue, or just the bootloader going haywire due to bugs in 
> OpenBIOS.

I gave the command line in the original posting, but something chopped 
it. Let me cut 'n' paste again. If it still fails to come through, 
everything is logged at https://bugs.launchpad.net/qemu/+bug/623852

"Has anyone tried booting FreeBSD8.1-ppc under QEMU (Linux x86_64 host; 
PPC guest)? I can get Linux/PPC to run fine, and FreeBSD8.1-i386 as 
well; but there seems to be a problem with whatever the FreeBSD8.1 
kernel does, that QEMU's PPC emulation can't handle.

I am using the latest version of QEMU from GIT as of 25/8/10. I don't 
know how to get a "git commit hash", so I can't quote it.

The kernel starts OK then loops after "Kernel entry at 0x100100 ...".

The command I am running is

qemu-system-ppc -cdrom FreeBSD-8.1-RELEASE-powerpc-disc1.iso -hda 
freebsd8.1-ppc -m 94 -boot d

I obtained the kernel from 
ftp://ftp.freebsd.org/pub/FreeBSD/releases/powerpc/ISO-IMAGES/8.1/FreeBSD-8.1-RELEASE-powerpc-disc1.iso 
ftp://ftp.freebsd.org/pub/FreeBSD/releases/powerpc/ISO-IMAGES/8.1/FreeBSD-8.1-RELEASE-powerpc-disc1.iso."

Regards,

-Nigel