Startup problem under Fedora: emulation failed but !mmio_needed?

Startup problem under Fedora: emulation failed but !mmio_needed?

[James Morris]

Just wondering if anyone's seen this before, or knows what it is:

OS is recent Fedora with various updates, kernel is upstream 
2.6.19-rc6-mm2.

# /usr/local/kvm/bin/qemu-system-x86_64 -hda vdisk.img -cdrom diskboot.img -boot d -m 384 -nographic
(qemu) set_vram_mapping: memory: e0000000 - e0800000
set_vram_mapping: return 0x2b746f1c3000
vga_update_vram: base 0x2b746f1c3000 ptr 0x2b746e9c1010
vga_update_vram: done
exception 13 (0)
Aborted


Syslog says:
Nov 30 12:48:59 halo kernel: msrs: 6
Nov 30 12:49:00 halo kernel: emulation failed but !mmio_needed? rip a45 f4 eb fd 89





- James
-- 
James Morris
<jmorris-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>



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Re: Startup problem under Fedora: emulation failed but !mmio_needed?

[Avi Kivity]

James Morris wrote:
> Just wondering if anyone's seen this before, or knows what it is:
>
> OS is recent Fedora with various updates, kernel is upstream 
> 2.6.19-rc6-mm2.
>
> # /usr/local/kvm/bin/qemu-system-x86_64 -hda vdisk.img -cdrom diskboot.img -boot d -m 384 -nographic
> (qemu) set_vram_mapping: memory: e0000000 - e0800000
> set_vram_mapping: return 0x2b746f1c3000
> vga_update_vram: base 0x2b746f1c3000 ptr 0x2b746e9c1010
> vga_update_vram: done
> exception 13 (0)
> Aborted
>
>
> Syslog says:
> Nov 30 12:48:59 halo kernel: msrs: 6
> Nov 30 12:49:00 halo kernel: emulation failed but !mmio_needed? rip a45 f4 eb fd 89
>
>   

What host cpu? What guest? (looks like Fedora's diskboot.img, but state 
version and bitness)



-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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Re: Startup problem under Fedora: emulation failed but !mmio_needed?

[James Morris]

On Fri, 1 Dec 2006, Avi Kivity wrote:

> > Syslog says:
> > Nov 30 12:48:59 halo kernel: msrs: 6
> > Nov 30 12:49:00 halo kernel: emulation failed but !mmio_needed? rip a45 f4 eb fd 89
> >
> >   
> 
> What host cpu? What guest? (looks like Fedora's diskboot.img, but state 
> version and bitness)

Actyally, I blew that system away, it was a mess.  Currently seems to be 
working fine as a fresh FC6 install, installing FC6 inside a vm.

The cpu(s) are Intel, on some early development hardware.



- James
-- 
James Morris
<jmorris-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>



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