Re: still seeing network freezes with rtl8139 nic

david ahern
2008-03-05T18:33:32Z

I did not have any better luck with the e1000 or pcnet nics when running kvm-61.
I'll try again with kvm-63 and get back to you.

david

Avi Kivity wrote:
> 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.