On Fri, 7 May 2021 13:12:43 +0200 Arturo Borrero Gonzalez <arturo@xxxxxxxxxxxxx> wrote: > However, the nft ruleset is quite simple. It should be possible for you to grab > a similar arch CPU, introduce the ruleset and generate some traffic to trigger > the lookup(), no? Unfortunately, this has little to do with the ruleset, it's rather about the fact that a kthread using the FPU gets interrupted by net_rx_action() which ends up in a call to nft_pipapo_avx2_lookup(), which also uses the FPU. The amount of luck I'd need to hit this with some ext4 worklaod together with packet classification discourages me from even trying. ;) But luckily my mistake here looks simple enough to fix. -- Stefano
