Re: port-amd64/52896 (amd64 kernel seems to have RWX mappings)

To: port-amd64-maintainer%netbsd.org@localhost,netbsd-bugs%netbsd.org@localhost,gnats-admin%netbsd.org@localhost,maxv%NetBSD.org@localhost,coypu%sdf.org@localhost
Subject: Re: port-amd64/52896 (amd64 kernel seems to have RWX mappings)
From: maxv%NetBSD.org@localhost
Date: Fri, 9 Feb 2018 09:17:45 +0000 (UTC)

Synopsis: amd64 kernel seems to have RWX mappings

State-Changed-From-To: open->closed
State-Changed-By: maxv%NetBSD.org@localhost
State-Changed-When: Fri, 09 Feb 2018 09:17:44 +0000
State-Changed-Why:
There is no RWX mapping on amd64. What "pmap 0" displays is the maximum permission
of a map, and by default, the maximum permission used in UVM is RWX. But the pages
are later kentered manually, and they are actually never RWX.

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