Re: kvm problems on new hardware

Avi Kivity
2009-11-04T10:43:14Z

On 10/29/2009 08:37 PM, Danny ter Haar wrote:
> Update:
> I compiled/installed 2.6.32-rc5-git3 on this machine
>
> I manually start kvm:
>
> vhost1:~# kvm -m 512 -cdrom /vz/template/iso/debian-503-amd64-netinst.iso
>
> The bootscreen comes up, i hit enter to install and i get these messages
> (copied from dmesg)
>
> handle_exception: unexpected, vectoring info 0x80000010 intr info 0x80000b0d
> handle_exception: unexpected, vectoring info 0x8000000d intr info 0x80000b0d
> [this line is repeated many times:
> dmesg |grep 0x80000b0d | wc -l
> 570 ]
> and finally before ending the kvm session i get:
> vmx_handle_exit: unexpected, valid vectoring info (0x8000000d) and exit reason is 0x80000021
>
>
> Can somebody make a slightly related guess what this means ?
>

Can't guess, so a debugging patch.

Please install a kvm.git kernel and qemu.git qemu, both from the
simultaenous-exceptions branch. kvm.git is very similar to 2.5.32-rc5,
except for kvm changes. Please enable ftrace in the kernel.

For starters, run your guest; instead of dmesg errors it should print
something on stderr and freeze. Please report those messages, as well
as the output of the following monitor commands:

(qemu) info registers
(qemu) x/30i $eip-20

You can find kvm.git and qemu-kvm.git in

git://git.kernel.org/pub/scm/virt/kvm/kvm.git
git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git

remember, the simultaneous-exceptions branch, or we don't get any output.

--
error compiling committee.c: too many arguments to function