1

If the child tries to write, it gets a new copy of the page (which is no longer write protected), does the grandchild point to that new page or the old one (which the parent holds)?

Improve this question

1 Answer 1

Reset to default
2

The process that writes to the page gets a new copy. If there are multiple processes that shared the old copy, they keep sharing the same page. It doesn't matter if the processes happen to be related.

Improve this answer
2
  • So if there is just a parent and child, if child writes, it gets a new copy and is the old copy still write protected?
    – Swair
    Commented Nov 9, 2014 at 0:35
  • 1
    @swair Yes, that's how it works. What happens in the process that writes doesn't affect the other processes. It doesn't matter if one happens to be the child of the other.
    – Gilles 'SO- stop being evil'
    Commented Nov 9, 2014 at 0:58

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .