Re: KVM induced panic on 2.6.38[2367] & 2.6.39

Avi Kivity
2011-06-01T11:09:20Z

On 06/01/2011 01:53 PM, Brad Campbell wrote:
> On 01/06/11 17:41, Avi Kivity wrote:
>> On 06/01/2011 12:40 PM, Avi Kivity wrote:
>>>
>>> bridge and netfilter, IIRC this was also the problem last time.
>>>
>>> Do you have any ebtables loaded?
>
> Never heard of them, but making a cursory check just in case..
>
> brad@srv:/raid10/src/linux-2.6.39$ grep EBTABLE .config
> # CONFIG_BRIDGE_NF_EBTABLES is not set
>
>>> Can you try building a kernel without ebtables? Without netfilter at
>>> all?
>
> Well, without netfilter I can't get it to crash. The problem is
> without netfilter I can't actually use it the way I use it to get it
> to crash.
>
> I rebooted into a netfilter kernel, and did all the steps I'd used on
> the no-netfilter kernel and it ticked along happily.
>
> So the result of the experiment is inconclusive. Having said that, the
> backtraces certainly smell networky.
>
> To get it to crash, I have to start IE in the VM and https to the
> public address of the machine, which is then redirected by netfilter
> back into another of the VM's.
>
> I can https directly to the other VM's address, but that does not
> cause it to crash, however without netfilter loaded I can't bounce off
> the public IP. It's all rather confusing really.
>
> What next Sherlock?
>

Maybe the Sherlocks at netdev@ can tell.

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