net, x/net/route: 0:fe:8000::%lo0: bind: can't assign requested address on FreeBSD 11.2 or above

[mikioh]

For the record; as described in freebsd/freebsd-src@027c7f4#diff-ad4e5b7f1449ea3fc87bc97280de145b, a longstanding issue for COMPAT_FREEBSD32 (386 emulation on amd64) in the network subsystem is fixed on FreeBSD 11.2 or above, and the interface and interface address identification API in the net package of the standard library is affected by the fix; the API is broken in 386 emulation on FreeBSD 11.2 or above.

[mikioh]

And the fix is here: https://go-review.googlesource.com/c/139577, already applied to both x/net and go repositories.

[gopherbot]

Change https://golang.org/cl/170897 mentions this issue: ipv4, ipv6: skip tests on freebsd/386 with previous standard libraries