[ovs-dev] [ ovs ] bug / kernel panic

Jesse Gross jesse at nicira.com
Wed Nov 20 01:56:53 UTC 2013


All of these stack traces seem completely different to me (and some
don't even involve OVS) so it's pretty difficult to tell what's going
on. However, if I had to guess, I suspect that you have a loop with
your GRE configuration.

On Tue, Nov 19, 2013 at 12:17 AM, nicolas prochazka
<prochazka.nicolas at gmail.com> wrote:
> hello,
> It's 100% reproductible on physical server ( dell , network card
> driver bnx2 ) , with a virtual vm i can't reproducte it.
> it's near this description :
> http://permalink.gmane.org/gmane.linux.network/269580
>
> More information :
> GRE tunnel are active but huge traffic is on standard port (not gre)
> two poor screenshot of kernel panic
> https://drive.google.com/file/d/0B7ff7G-ktDxjRkMwaHBXbDV1VjA/edit?usp=sharing
> https://drive.google.com/file/d/0B7ff7G-ktDxjdjlBRE5UNFZldWs/edit?usp=sharing
>
> Regards,
> Nicolas Prochazka.
>
> 2013/11/18 Jesse Gross <jesse at nicira.com>:
>> On Mon, Nov 18, 2013 at 10:15 AM, nicolas prochazka
>> <prochazka.nicolas at gmail.com> wrote:
>>> Hello,
>>>
>>> my configuration :
>>> kernel 3.11.8 + with openvswitch kernel module, and gre kernel
>>> openvswitch 2.0.0
>>>
>>> Test :
>>> When i do GRE over IPSEC ( strongswan on neoEtap interface )
>>> a kernel panic occur when high traffic is done
>>> - in cpuacct_charge
>>> or
>>> - xfrm_output
>>
>> Can you please post some kind of backtrace or screenshot? Also,
>> whether this is 100% reproducible, if it happens in other situations,
>> etc.?



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