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

Nigel Horne njh at bandsman.co.uk
Wed Aug 25 19:47:12 CEST 2010


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 



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