dfly & kvm

[Venkatesh Srinivas]

2012/3/6 Andrey N. Oktyabrski <ano at bestmx.ru>:
> Good day.
>
> Today I tried to update 2.10 to 3.0 on my VPS. 3.0 do not boot. Have anybody
> tested dfly on kvm? Is it possible to update, or I must use 2.10 there?

Hi,

We have some known issues with 3.0 in recent versions of kvm and qemu.
They are related to the new interrupt code, I think. There are
workarounds, though!

You can start qemu/kvm with -no-acpi or set hw.ioapic_enable=0 in
/boot/loader.conf; this will let you boot. You may need to enable
polling mode for the virtual NIC as well; ifconfig em0 polling 1 will
do that.

The problem iiuc is that an interrupt is getting missed during boot,