Re: [PATCH net v2 0/3] net: prevent deadlocks and mis-configuration with per-NAPI threaded config

On Fri, Aug 08, 2025 at 05:12:02PM -0700, Jakub Kicinski wrote:

Running the test added with a recent fix on a driver with persistent NAPI config leads to a deadlock. The deadlock is fixed by patch 3, patch 2 is I think a more fundamental problem with the way we implemented the config.

I hope the fix makes sense, my own thinking is definitely colored by my preference (IOW how the per-queue config RFC was implemented).

Maybe it's too late now, but I am open to revisiting how the whole per-queue NAPI config works after a conversation we had a couple months ago (IIRC ?).

I think you had proposed something that made sense to me at the time (although I can't recall what that was or what thread that was in).