"It turns out that MPTCP sockets are allocated using a slab cache. I found this out early on, but forgot about it nearly as soon as I found out." The real prob

"It turns out that MPTCP sockets are allocated using a slab cache. I found this out early on, but forgot about it nearly as soon as I found out." The real problem isn't linked lists. It's that the author learned how something worked (the spec), forgot about that, and then essentially coded against the wrong spec. The title might have instead been: "I forgot something and broke a kernel." Much more accurate given people who know they're dealing with slab allocators, linked lists, etc usually use them correctly. They can also sleep a bit better instead of being up until 3am debugging.