Re: kvm problems with Intel host and netbsd/linux guests

[Jim Paris <jim-XrPbb/hENzg@public.gmane.org>]

Avi Kivity wrote:

> >Also, on the Linux side of things, I have a disk image from a computer
> >that also crashes when I try to boot it.  It dies with "exception 14"
> >after Grub.  But, it does work fine with -no-kvm.  The kernel it's
> >booting is a 32-bit k7 optimized kernel; is it expected behavior for
> >that to work fine under -no-kvm but crash on an Intel host?
> >  
> 
> If the kernel uses AMD-specific instructions, yes.  Can you send .config 
> for that kernel?

I think it's the stock debian 2.6.18-1-k7 kernel, not sure as it's a
disk image from someone else's machine.  The config has
  CONFIG_X86_32=y
  CONFIG_MK7=y
http://jim.sh/~jim/tmp/config-2.6.18-1-k7

I've managed to get it to boot with KVM by booting first with -no-kvm
and installing the 2.6.18-1-686 kernel.  And that seems to mostly
work, except that I get occasional random segfaults inside the guest
OS.  I also get the same thing when booting e.g. a FreeBSD liveCD
(FreeSBIE).  Sigh.  Not sure how to easily reproduce or debug that.

-jim


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