Re: [Xen-devel] Via Cyrix 3 II / CentaurHauls Nehemiah support

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

> > What happens if you try to boot an unmodified standard Xenolinux
> > image? I would expect that you would see output from DOM0 but it will
> > then panic about an unrecognised CPU type. If you see no output from
> > DOM0 at all then that is weird.
> 
> Using my patched xen.gz to support the CPU but with the standard
> xenolinux.gz from a demo CD I get the same behaviour using console=tty0
> - no output after "(XEN) DOM0: Guest OS virtual load address is
> c0000000".  However without any console= argument or using console=vga I
> see this too:
> 
> *** Serial input -> DOM0 (type 'CTRL-a' to switch input to Xen).
> Domain 0 killed: rebooting machine!
> Reboot disabled on cmdline: require manual reset
> 
> Does that help?

Make a debug build of Xen (edit arch/i386/Rules.mk and get rid of
-DNDEBUG). You will then get some output when DOM0 crashes (you may
want to specify 'noreboot' on Xen's command line).

Boot DOM0 without console=tty0 to get this output (or Xen gives up the
VGA console).

 -- Keir


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