Re: [kvm-devel] still seeing network freezes with rtl8139 nic

[Avi K. <av...@qu...>]

david ahern wrote:
> Try adding the noapic option to your guest kernel. I re-ran that test on kvm-62
> and my VM was able to run under load for more than 3-1/2 days (the network never
> locked up; I stopped the test to try other variations).
>
> One side effect of the noapic option is that irq balancing is disabled -- all
> interrupts are delivered via CPU 0. I ran a few tests earlier this week without
> the noapic option (hence with the apic) but with irq balancing disabled and
> still had the lockups. It seems to be something specific to the apic.
>
>   

I got good results with apic and e1000.  Can you try it?

May be a guest driver bug.

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