mesa:1d01429c6a1ae679d0cc0cb61db1948fca5ced4c (master)

Run piglit glx-visuals-depth -pixmap on swrast or softpipe.

$ ./bin/glx-visuals-depth -pixmap
Mesa: Initializing x86-64 optimizations
Segmentation fault (core dumped)

(gdb) bt
#0  XCreateDrawable (visualid=0, drawable=56623106, dpy=0x18e1010, pdp=0x1ae4f90) at drisw_glx.c:95
#1  driswCreateDrawable (base=0x18f07d0, xDrawable=56623106, drawable=<optimized out>, modes=0x18fef80) at drisw_glx.c:528
#2  0x00007f4ce94f5f24 in CreateDRIDrawable (dpy=<optimized out>, config=0x18fef80, drawable=56623106, glxdrawable=56623107, 
    attrib_list=0x0, num_attribs=0) at glx_pbuffer.c:203
#3  0x00007f4ce94f62fa in CreateDrawable (dpy=0x18e1010, config=0x18fef80, drawable=56623106, attrib_list=0x0, 
    glxCode=22 '\026') at glx_pbuffer.c:442
#4  0x000000000042d4b7 in piglit_glx_iterate_pixmap_fbconfigs (draw=0x429384 <draw>)
    at piglit/tests/util/piglit-glx-util.c:293
#5  0x0000000000429607 in main (argc=2, argv=0x7fffe629c678) at piglit/tests/glx/glx-visuals-depth.c:104
(gdb) frame 0
#0  XCreateDrawable (visualid=0, drawable=56623106, dpy=0x18e1010, pdp=0x1ae4f90) at drisw_glx.c:95
95	   pdp->ximage = XCreateImage(dpy,
(gdb) l
90	   visTemp.visualid = visualid;
91	   visMask = VisualIDMask;
92	   pdp->visinfo = XGetVisualInfo(dpy, visMask, &visTemp, &num_visuals);
93	
94	   /* create XImage */
95	   pdp->ximage = XCreateImage(dpy,
96	                              pdp->visinfo->visual,
97	                              pdp->visinfo->depth,
98	                              ZPixmap, 0,             /* format, offset */
99	                              NULL,                   /* data */
(gdb) print pdp->visinfo
$1 = (XVisualInfo *) 0x0