Messages in this thread | | | Date | Mon, 14 Aug 2023 11:24:21 -0700 | From | Jakub Kicinski <> | Subject | Re: [RFC PATCH net-next 0/2] net: Use SMP threads for backlog NAPI. |
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On Mon, 14 Aug 2023 11:35:26 +0200 Sebastian Andrzej Siewior wrote: > The RPS code and "deferred skb free" both send IPI/ function call > to a remote CPU in which a softirq is raised. This leads to a warning on > PREEMPT_RT because raising softiqrs from function call led to undesired > behaviour in the past. I had duct tape in RT for the "deferred skb free" > and Wander Lairson Costa reported the RPS case.
Could you find a less invasive solution? backlog is used by veth == most containerized environments. This change has a very high risk of regression for a lot of people.
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