> I do not believe there are material differences in handling of user VA
between amd64 and arm64 from the application point of view. Also, I
believe that removal of sbrk(2) from arm64 was more an experiment to see
what breaks, instead of failed attempt to implement it.

> Now I think that we should claim that the experiment failed and just
allow sbrk on all Tier 1 arches. It is not worth the trouble.

Konstantin Belousov https://lists.freebsd.org/archives/freebsd-arm/2023-November/003304.html #FreeBSD #sbrk #arm64