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

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

david ahern wrote:
> I know this issue has been discussed on this list before, but I am still
> experiencing network freezes in a guest that requires a restart to clear. When
> the network freezes in the guest I no longer see the network interrupts counter
> incrementing (i.e., the eth0 counter in /proc/interrupts in the guest). Using
> the crash utility, I verified that the interrupt is still enabled on the guest
> side and that no interrupts are pending. This suggests that the interrupts are
> not getting delivered to the VM.
>
>   

[...]

> I am continuing to look into the irq processing on the kvm/qemu side. I'd like
> to know if anyone has suggestions on what to look at. This is my first foray
> into the kvm and qemu code, and it's a lot to take in all at once.
>
>   

Standard procedure is to run with -no-kvm and -no-kvm-irqchip, to see if 
the problem is in qemu proper, the in-kernel irq handling, or the rest 
of kvm.

-- 
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