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Date: Fri, 06 Dec 2002 21:12:09 +0000
From: Pete French <pete@twisted.org.uk>
Reply-To: Pete French <pete@twisted.org.uk>
To: FreeBSD-gnats-submit@FreeBSD.org
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Subject: ports/46037: Offscreen OpenGL rendering causes 'Illegal instruction (core dumped)' in XFree86-4.2.0_1,1
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>Number:         46037
>Category:       ports
>Synopsis:       Offscreen OpenGL rendering causes 'Illegal instruction (core dumped)' in XFree86-4.2.0_1,1
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-ports
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Dec 06 13:20:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Pete French
>Release:        FreeBSD 4.7-STABLE i386
>Organization:
twisted.org.uk
>Environment:
System: FreeBSD skerry 4.7-STABLE FreeBSD 4.7-STABLE #0: Thu Dec 5 20:44:58 GMT 2002 pete@skerry:/usr/obj/usr/src/sys/SKERRY i386

>Description:

	Attempting to do any offscreen rendering using OSMesa in
	XFree86-4.2.0_1,1 causes an 'Illegal Instruction' error. This causes
	any programs using OpenGL in this way to fail.

>How-To-Repeat:

	Try and run any piece of code using the OSMesa libraries. The osdemo.c
	program provided with Mesa for example:

	cc -I/usr/X11R6/include osdemo.c -L/usr/X11R6/lib -lGL -lGLU -lglut -lOSMesa
	./a.out
	Illegal instruction (core dumped)

	According to gdb the error occurs in gl_katmai_transform_points3_3d_raw()
	and this is where I also see it when running my own code.

>Fix:

	None known.

>Release-Note:
>Audit-Trail:
>Unformatted:

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