Post #2285592
2026-03-17 17:45 UTC
@rovarma@mastodon.gamedev.place great post! (kinda proud of myself that my very eyeball-y guess “200ms stalls” turned out to be almost exactly correct :))
Would be good to clarify why only certain kernel versions were affected, since now not clear why only I could see the problem initially
Replies (1)
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@rovarma@mastodon.gamedev.place 2026-03-17 20:17
@aras@mastodon.gamedev.place Good point! Added a bit about that in the conclusion. TL;DR: usage of rqspinlock in the ebpf ring buffer was introduced with kernel 6.15, and our development machines (and most of our alpha testers) are on Ubuntu, which runs an older kernel than that (6.14). It would eventually have shown up for us too, once Ubuntu caught up.