On Mon, 7 May 2018, Eric Wheeler wrote: > I would like to clone a virtual address space so that the address spaces > share physical pages until a write happens, at which point it would copy > to a new physical page. I've looked around and haven't found any > documentation. Certainly fork() already does this, but is there already > simple way to do it with a virtual address space? The clone() syscall does it (since it is the underlying basis for fork). The same effect can also be had by using mmap with MAP_PRIVATE on a shared memory segment.
