On Tue, 15 Feb 2005, Willing, John (J.K.) wrote:
While running with a commercial CAD program, we encountered a problem
with the OpenGL libraries.
In Function DoMakeCurrent
640 if (prevglxc) {
641 if (prevglxc->drawPixmap) {
642 if (prevglxc->drawPixmap != prevglxc->readPixmap) {
643 /*
644 ** The previous drawable was a glx pixmap, release
it.
645 */
646 prevglxc->readPixmap->refcnt--;
We came across a problem where prevglxc->readPixmap is NULL causing a
Segmentation Fault at line 646. I resolved the issue by changing line
641 to:
641 if (prevglxc->drawPixmap && prevglxc->readPixmap) {
As of 4.4.99.19, this problem has already been fixed.
Marc.
+----------------------------------+-----------------------------------+
| Marc Aurele La France | work: 1-780-492-9310 |
| Computing and Network Services | fax: 1-780-492-1729 |
| 352 General Services Building | email: tsi@xxxxxxxxxxx |
| University of Alberta +-----------------------------------+
| Edmonton, Alberta | |
| T6G 2H1 | Standard disclaimers apply |
| CANADA | |
+----------------------------------+-----------------------------------+
XFree86 developer and VP. ATI driver and X server internals.
_______________________________________________
XFree86 mailing list
XFree86@xxxxxxxxxxx
http://XFree86.Org/mailman/listinfo/xfree86
