Re: pkg/35416: agp driver hangs on ALi/ULi M1689 chipset

[Gary Duzan <gary%duzan.org@localhost>]

The following reply was made to PR kern/35416; it has been noted by GNATS.

From: Gary Duzan <gary%duzan.org@localhost>
To: Martin Husemann <martin%duskware.de@localhost>
Cc: gnats-bugs%NetBSD.org@localhost
Subject: Re: pkg/35416: agp driver hangs on ALi/ULi M1689 chipset 
Date: Sat, 05 Apr 2008 07:23:40 -0400

 In Message <20080405102348.GA23805%drowsy.duskware.de@localhost> ,
    Martin Husemann <martin%duskware.de@localhost> wrote:
 
 =>Is there a BIOS setting to configure the aperture size?
 
    I believe so. However, the problem isn't the size, it is that
 the wrong driver attaches, and I assume the aperture size is being
 pulled from the wrong place. My "fix" is just a workaround for the
 fact that the value it gets is zero, which is divided by two _ad
 infinitum_. I'd argue that it is a reasonable boundary test in any
 case, and working around the bug is a useful side effect. The same
 condition could occur normally if the BIOS settings let you set
 the aperture size to zero, in which case you would want the same
 error.
 
                                        Gary Duzan