Re: [ANNOUNCE] kvm-36 release

Avi Kivity
2007-09-14T16:53:04Z

Gildas wrote:
> Hi,
>
> Some updates since kvm-37
>
> Compilation worked fine for me on an intel Core2 64bits machine
> running ubuntu feisty with kernel 2.6.20 x86_64.
>
> Loading modules went ok.
>
> * Running a windows xp image with "/usr/local/bin/qemu-system-x86_64
> -smp 2 -m 768 -hda win_xp.qcow -net user -net nic -monitor
> tcp::4444,server -vnc :1 -redir tcp:3389::3389 &" result in :
> exception 6 (0)
>
>

Which HAL does this image use?

> * I've found out that "-net nic -net user" don't interact nicely with
> "-smp 2", as the following test with a debian image (kernel 2.6.18
> 64bits)shows:
> -smp 2 -net user (without -net nic)-> boots fine
> -smp 2 -net nic (without -net user)-> boots fine
> -net nice -net user (without -smp 2) -> boots fine
> -smp 2 -net user -net nic -> crash with:
>
>

How does -no-kvm-irqchip affect this?

> Also, when it boots correctly with "-smp 2" it shows 2 processors in
> /proc/cpuinfo, but I have messages as follows at bootup:
> " ACPI : Getting cpuindex for acpiid 0x2
> ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device
> not present [20060707]"
> (not sure if this is related but I don't remember having seen them before)
>
>

This is due to some ACPI work that exposes 16 processors so that Windows
SMP does not grumble at us. We should make the ACPI objects conditional
on the processors actually existing. Igor?

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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