Re: Debian 5.0 host, qemu-kvm 0.12.4, unable to use -smp > 1

[Michael Tokarev <mjt@tls.msk.ru>]

11.08.2010 21:18, Freddie Cash wrote:
> On Wed, Aug 11, 2010 at 9:32 AM, Gleb Natapov<gleb@redhat.com>  wrote:
>> On Wed, Aug 11, 2010 at 07:29:22AM -0700, Freddie Cash wrote:
>>> We just upgraded our KVM host system from KVM-72 to qemu-kvm 0.12.4
>>> (debian lenny backports).  We are now unable to start any VMs that use
>>> -smp option with values>  1 (-smp 1 works, -smp 2 doesn't).
>>> Everything else is the same (nothing in the guests was changed,
>>> nothing else on the host was changed).
>>>
>> KVM-72 is too old for recent qemu-kvm userspace. Unfortunately our
>> backwards compatibility does not go so far.
>
> KVM modules and what-not were upgraded at the same time, obviously
> (kvm, kvm-source, qemu-kvm packages).  :)  Taken from lenny-backports
> repo.

Please remove kvm-source, reinstall kernel, and retry.
If kvm-source (which is the kernel module, of version -72) actually
compiles, it is quite surprizing - the module is written for a very
old (by now) kernel.

Thanks!

/mjt