On Mon, Nov 25, 2019 at 12:42:44PM +0100, Paolo Abeni wrote: > I think it would be nice moving the iwlwifi driver to full/plain NAPI > mode. The interrupt handler could keep processing extra work as it does > now and queue real pkts on some internal queue, and than schedule the > relevant napi, which in turn could process such queue in the napi poll > method. Likely I missed tons of details and/or oversimplified it... It must have something to do with iwlwifi (as if we needed more evidence). I just booted a different variant of the Dell XPS 9370 which has Qualcomm Wi-Fi [168c:003e] (ath10k_pci.ko), instead of Intel Wi-Fi, from the same USB SSD as before, and it has no issues whatsoever. My regression report quickly blown up to be way over my head in terms of understanding, but I will keep monitoring the discussions and try to learn from it. Everybody, please keep me CC'd into any further communications with driver teams, as I am genuinely interested in the journey and the outcome. > Cheers, > > Paolo > > Cheers, Nicholas