Re: KVM behaves weird on AMD64

[Tobias Brink <tobias.brink-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Miguel Araujo <maraujo-l9cVusCFpiBeoWH0uzbU5w@public.gmane.org>
writes:

[snip]
> The issue started when I tried to install OpenBSD 4.1 on a Virtual
> Machine and It could not manage to write the MBR on disk. That
> should not happen.

I have a probably similar problem with OpenBSD 4.1 and kvm-37 and
kvm-39 (didn't have time to test any further versions).  Kernel is
2.6.22-gentoo-r5 and processor is Intel Core2 Quad.  I use the modules
from the unpatched (Gentoo) kernel.

I installed OpenBSD with vanilla qemu and it works perfectly but as
soon as I use kvm the OpenBSD kernel panics on boot with

  root on wd0a
  rootdev=0x0 rrootdev=0x300 rawdev=0x302
  panic: root filesystem has size 0

and then enters the debugger.  With -no-kvm it works as flawlessly as
in vanilla qemu.

I don't have much time at the moment but I'll try to find a working
kvm version.  If you need further information I'll see if I can
provide it as I'd really like to see OpenBSD working with kvm.

Greetings,
Tobias


-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/