Re: UVM and the NULL page

To: tech-kern%NetBSD.org@localhost
Subject: Re: UVM and the NULL page
From: Mouse <mouse%Rodents-Montreal.ORG@localhost>
Date: Mon, 26 Dec 2016 16:40:16 -0500 (EST)

> The only reason I know for mapping address zero [...]

> Anyway mmap() without MAP_FIXED should never return NULL.

Perhaps it's time to implement null pointers as something other than
all-bits-zero?

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