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Date: Sun, 21 Nov 2004 01:53:59 GMT
From: "O. Hartmann" <ohartman@web.de>
To: freebsd-gnats-submit@FreeBSD.org
Subject: FreeBSD 5.3: PCI VGA graphics crashes SMP and Single User Kernel
X-Send-Pr-Version: www-2.3

>Number:         74182
>Category:       kern
>Synopsis:       FreeBSD 5.3: PCI VGA graphics crashes SMP and Single User Kernel
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Nov 21 02:00:48 GMT 2004
>Closed-Date:    Mon Nov 29 08:47:44 GMT 2004
>Last-Modified:  Mon Nov 29 08:47:44 GMT 2004
>Originator:     O. Hartmann
>Release:        FreeBSD 5.3-RELEASE-p1/FreeBSD 5.3-STABLE
>Organization:
Department of Geophysic Johannes Gutenberg-Universitaet Mainz
>Environment:
FreeBSD edda.geo.uni-mainz.de 5.3-RELEASE-p1 FreeBSD 5.3-RELEASE-p1 #76: Sun Nov 21 02:09:38 CET 2004     root@:/usr/obj/usr/src/sys/EDDA  i386

>Description:
Investigating in an wierd error behavior of a FreeBSD 5.3 box with SMP I found out that PCI VGA graphics cards seem to trigger those problems I reported.
I use a ASUS CUR-DLS mobo with two P3 at 1GHz, 1GBytes RAM, U160 SCSI equipment and built in 4MB ATI Rage XL PCI graphics. Problem was: Machine freezes spontanously in SMP mode, especially doing a lot of graphics output or simply using Mozilla/FireFox intensively. 
In single user mode (for update and upgrade purposes) the console freezes after doing a lot of output (while showing what' getting compiled or installed).
This 'freezing' does not occur using a Matrox Millenium II PCI! Single user mode works great and stable - but I can not boot machine in multi user mode anymore, the console get stuck with a blinking cursor. That is really weird and seems to be a software problem. Disabling SMP keeps the system running for days with the built in ATI Rage XL PCI graphics, but it still breaks single user mode! I ran into harsh situations while trying to do a buildworld and getting stuck due a dying system when libs got installed!
SMP brings down the machine very rapid when doing a lot of graphics!
Changing to a Matrox Millenium II, 4MB PCI graphics card keeps single user mode working but freezes the box when coming up into multi user mode! Machine get stuck with a blinking green carret but is still responsive via network.
 
>How-To-Repeat:
      Use FreeBSD 5.3-RELEASE  with PCI graphics and SMP!
>Fix:
      
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Mon Nov 29 08:47:12 GMT 2004 
State-Changed-Why:  
This is a followup to kern/74156; content has been migrated. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=74182 
>Unformatted:
