Subject: Re: kern/35821: /dev/mem is not readable any more
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: Martin Husemann <martin@duskware.de>
List: netbsd-bugs
Date: 02/25/2007 18:40:02
The following reply was made to PR kern/35821; it has been noted by GNATS.
From: Martin Husemann <martin@duskware.de>
To: Elad Efrat <elad@bsd.org.il>
Cc: gnats-bugs@NetBSD.org
Subject: Re: kern/35821: /dev/mem is not readable any more
Date: Sun, 25 Feb 2007 19:36:13 +0100
On Sun, Feb 25, 2007 at 05:35:02PM +0000, Elad Efrat wrote:
> again, you first need to know what access to unmanaged memory means.
> then you can make smarter decisions about the policy.
I do not understand what you exactly mean here - we certainly do understand
what on i386 access to the BIOS address range means.
> how exactly do you want to "improve" documentation?
Simple: in acpidump(8) note that it requires securelevel <= 0,
and in {p}read(2) note that EPERM might be returned and why.
Martin