On Mon, 28 Jan 2002 19:29:49 CST, Oliver Xymoron said:
> I think something more is needed, such as creating a minimal page table
> for the child process with read-only mappings to the current %EIP and %EBP
> pages in it. This gets us past the fork/exec hurdle. Without the exec, we
> copy over chunks when they're accessed as above in handle_mm_fault. But
> you can't actually _share_ the page tables without marking the pages
> themselves readonly.
Actually, you can. But everybody agrees that vfork() was blecherous.
-- Valdis Kletnieks Computer Systems Senior Engineer Virginia Tech
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