On Fri, 4 Apr 2003, Sogor, Laszlo (MED) wrote:
> Dear XFree86 development team,
>
> As far as we understand the Xlib specification
> (ftp://ftp.x.org/pub/R6.6/xc/doc/hardcopy/X11/xlib.PS.gz),
> we can pass any integer coordinate value to the XCopyArea(), so the
> following line should be valid
> if the dis, src, dst, gc parameters are valid:
> XCopyArea(dis,src,dst,gc, 32768, 32768, 32, 31, 0, 0);
> If it is true then there is a problem with the XFree86 4.2.0 package,
> we can crash it with the following code (executed as normal user,
> included below).
Can you try this with XFree86 4.3 ?
I have no problem with XFree86 4.2.99.901 on a neomagic chipset (Red Hat
7.3) or XFree86 with 4.3.99.1 on a Matrox G550 (Red Hat 6.2)
Both single processor.
> $ cat crash_xfree86.c
> #include <X11/Xlib.h>
> #include <X11/Xutil.h>
> #include <X11/Xos.h>
> #include <X11/Xatom.h>
> #include <X11/keysym.h>
> Display *dis;
> GC gc;
> Pixmap src,dst;
>
> int main(int argc, char *argv[]) {
> dis = XOpenDisplay(NULL);
> gc = XCreateGC(dis, RootWindow(dis, 0), 0, 0);
> src = XCreatePixmap(dis, RootWindow(dis, 0), 512, 512, 24);
> dst = XCreatePixmap(dis, RootWindow(dis, 0), 32, 32, 24);
>
> XCopyArea(dis,src,dst,gc, 32768, 32768, 32, 31, 0, 0);
> XFlush(dis);
> return 0;
> }
--
Dr. Andrew C. Aitchison Computer Officer, DPMMS, Cambridge
[EMAIL PROTECTED] http://www.dpmms.cam.ac.uk/~werdna
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