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They still share an address space until exec replaces it for one of them. Particularly awful is that they share the same mutable stack which is a pathway that
by monocasa 4y ago
They still share an address space until exec replaces it for one of them. Particularly awful is that they share the same mutable stack which is a pathway that only leads to the inner circle of hell.
- stefan_ 4y agoAssuming you call exec, of course. To not call exec after vfork is not an option; one of the many ways the fork family of functions are fundamentally broken.
- monocasa 4y agoWell, without undefined behavior you can also call _exit(), continue within the same function, and receive conforming signals. Unfortunately this isn't always spelled out and there's code out there that definitely does other work invoking undefined behavior.