[tptacek]

BTF is designed to avoid the problem, by having the live kernel export symbols; supposedly --- I haven't used it --- the toolchain even converts it to a header file, so BPF programs just include a "vmlinux.h" instead of includes pointing into kernel source (which is a nightmare). It's ambitious and I'm surprised it does as much as it does but apparently they're solving this problem.

[londons_explore]

I can imagine it leading to ossification of kernel internals.

Imagine when someone comes up with a revolutionary new paging method, but it causes everyone's eBPF scripts to fail to load and a bunch of tools to break...