kern/61739: Errata for 5.2 - problem with large AGP Apenture sizes

[Mikkel Georgsen]

>Number:         61739
>Category:       kern
>Synopsis:       Errata for 5.2 - problem with large AGP Apenture sizes
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jan 22 09:50:15 PST 2004
>Closed-Date:
>Last-Modified:
>Originator:     Mikkel Georgsen
>Release:        FreeBSD 5.2-RELEASE
>Organization:
CHDC
>Environment:
Not possible due to kernel-panic.
>Description:
If AGP Aperture Size is set to a value above 256MB, the kernel panics in both normal, non-acpi and safemode - using the 5.2-RELEASE CD1. Unfortunaly I only have one motherboard (KT600 chipset based) with support for larger Aperture sizes. I've tested with bootonly-5.2-CURRENT-20040122-JPSNAP.iso and it works flawless with a AGP Aperture Size at 1024MB.
>How-To-Repeat:
Set AGP Aperture Size above 256 and boot up 5.2-RELEASE CD1.
>Fix:
Set AGP Aperture Size to 256 or lower value or use newer bootcd (bootonly-5.2-CURRENT-20040122-JPSNAP.iso works fine).
>Release-Note:
>Audit-Trail:
>Unformatted: