See PR kern/51597
There is some rtsock stuff that does not get included in the compat
module.
On Sat, 19 Aug 2017, co...@sdf.org wrote:
try to run 7.1 ifconfig on 8.0. without COMPAT_70 in the kernel, it won't run.
Its non-compatibility is probably buried deep within a switch statement for a
generic function.
The only way we can reasonably make it work is:
- lie about what compat is, and build it inot the kernel, which also hurts
people who want to remove it because they are using weak archs
- make networking modular?
- kernel hot patching (runtime cost)
We can drop the pretense. it doesn't work.
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