[ovs-dev] [PATCH RFC v2 0/8] Introduce connection tracking tc offload

Marcelo Ricardo Leitner marcelo.leitner at gmail.com
Tue Jul 30 14:08:52 UTC 2019


On Mon, Jul 29, 2019 at 01:05:50PM +0000, Paul Blakey wrote:
> Hi,
> 
> I reproduced both traces.
> 
> The first rcu trace is because we deference the qdisc block without rtnl 
> locked (flower allows it unlocked)
> 
> and the second trace is because res->goto_tp can be null if the last 
> prio of a chain we goto was just deleted, and we try and deference it 
> unconditionally when we set the skb extension in tcf_classify.
> 
> This can happen when a filter is deleted while there is still traffic, I 
> have a test for it and will try on the fixes.
> 
> I'll post fixed patches (Patch by VladB) to the tc skb extension to fix 
> both of the above, and ovs userspace RFC v2 to fix the nat issue.

Cool, thanks Paul!

  Marcelo


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