xrender issue

[Hans-Peter Budek]

Hi,
if I set an alpha-map to a destination picture via
XRenderChangePicture(s->Dpy, Dest, CPAlphaMap, &Att) ;
the following XRenderComposite() call crash my X-server:

Backtrace:
[  9911.289] 0: /usr/X11R6/bin/X (xorg_backtrace+0x37) [0x80e8997]
[  9911.289] Segmentation fault at address (nil)
[  9911.289]
Fatal server error:
[  9911.289] Caught signal 11 (Segmentation fault). Server aborting
[  9911.289]
[  9911.289]
Please consult the The X.Org Foundation support

X.Org X Server 1.9.5
[  9887.642] (II) Module intel: vendor="X.Org Foundation"
[  9887.642]   compiled for 1.9.5, module version = 2.14.0

is this a known bug?

Thanks in advance.
Peter