Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x2abbf0c674b0 (LWP 4713)]
pixman_region_contains_point (region=<value optimized out>, x=0, y=0, box=0x0)
    at pixman-region.c:2149
2149		*box = region->extents;

(gdb) bt f
#0  pixman_region_contains_point (region=<value optimized out>, x=0, y=0, 
    box=0x0) at pixman-region.c:2149
	pbox = <value optimized out>
	pboxEnd = <value optimized out>
	numRects = 1
#1  0x00002abbef4754cc in fbFetchTransformed (pict=0x199c610, 
    x=<value optimized out>, y=<value optimized out>, width=32, 
    buffer=0x7fffbc6815b0, mask=0x0, maskBits=0) at pixman-compose.c:4146
	v = {vector = {-32769, 32767, 65536}}
	affine = 1
#2  0x00002abbef473d5e in pixman_composite_rect_general (data=0x7fffbc6874b0, 
    scanline_buffer=0x0) at pixman-compose.c:4580
No locals.
#3  0x00002abbef486ec3 in pixman_image_composite_rect (op=PIXMAN_OP_SRC, 
    src=0x199c520, mask=0x199c610, dest=0x199c790, src_x=0, src_y=0, mask_x=0, 
    mask_y=0, dest_x=0, dest_y=0, width=32, height=32) at pixman-pict.c:1384
	compose_data = {op = 1 '\001', src = 0x199c520, mask = 0x199c610, 
  dest = 0x199c790, xSrc = 0, ySrc = 0, xMask = 0, yMask = 0, xDest = 0, 
  yDest = 0, width = 32, height = 32}
	_scanline_buffer = {0 <repeats 1472 times>, 3160945528, 32767, 
  3160943616, 32767, 0, 0, 64, 0, 3160945600, 32767, 4034994327, 10939, 
  3160943616, 32767, 3160945616, 32767, 4294967295, 0, 4034221734, 10939, 
  909258801, 3682866, 0 <repeats 233 times>, 127, 0 <repeats 20 times>, 100, 
  0, 4034221459, 10939, 0, 0, 0, 0, 0, 0, 32, 0 <repeats 19 times>, 
  3160945904, 32767, 0, 0, 0, 0, 0, 1, 25, 0, 0, 65, 4037301600, 10939, 
  4037291328, 10939, 0, 0, 0, 10, 4034993881, 10939, 0 <repeats 12 times>, 
  3160943616, 32767, 256, 0, 7, 0, 0, 1, 0 <repeats 16 times>, 20, 0, 0, 0, 
  16, 0, 0, 0, 65, 0, 0, 2, 20, 0, 4037306752, 2, 4037306840, 10939, 
  4037306840, 10939, 0, 0, 3160943616, 32767, 256, 0, 4037306848, 10939, 
  4037306752, 10939, 100529, 0, 2064, 0, 4034355256, 10939, 8843408, 0, 
  4034543509, 10939, 2048, 0, 8843408, 0, 8843408, 0, 5, 0, 20, 0, 3160958000, 
  80, 22, 0, 4037306752, 10939, 3160958080, 32767, 2048, 0, 8869712, 0, 
  4037306752, 10939, 3160958080, 32767, 3, 0, 3, 0, 0, 0, 3, 0, 4034353782, 
  10939...}
	scanline_buffer = (uint32_t *) 0x7fffbc6814b0
#4  0x00002abbef486bbf in pixman_image_composite (op=PIXMAN_OP_SRC, 
    pSrc=0x199c520, pMask=0x199c610, pDst=0x199c790, xSrc=0, ySrc=0, xMask=0, 
    yMask=0, xDst=0, yDst=0, width=<value optimized out>, 
    height=<value optimized out>) at pixman-pict.c:1290
	info = <value optimized out>
	pixbuf = <value optimized out>
	srcRepeat = 0
	maskRepeat = 0
	srcTransform = <value optimized out>
	maskTransform = <value optimized out>
	maskAlphaMap = <value optimized out>
	func = (CompositeFunc) 0x2abbef486d80 <pixman_image_composite_rect>
	mmx_setup = 1
#5  0x00002abbf2b6ec08 in fbComposite (op=0 '\0', pSrc=0x199c140, 
    pMask=0x199c230, pDst=0x199c300, xSrc=<value optimized out>, 
    ySrc=<value optimized out>, xMask=0, yMask=<value optimized out>, xDst=0, 
    yDst=0, width=32, height=32) at fbpict.c:185
	src = (pixman_image_t *) 0x199c520
	mask = (pixman_image_t *) 0x199c610
	dest = (pixman_image_t *) 0x199c790
#6  0x00002abbf2dbbbf0 in XAAComposite (op=0 '\0', pSrc=0x199c140, 
    pMask=0x199c230, pDst=0x199c300, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, 
    yDst=0, width=32, height=32) at xaaPict.c:545
	infoRec = <value optimized out>
	pScreen = (ScreenPtr) 0x8230b0
	infoRec = (XAAInfoRecPtr) 0x857e30
#7  0x00002abbf2dd9d7b in cwComposite (op=0 '\0', pSrcPicture=0x199c140, 
    pMskPicture=0x199c230, pDstPicture=0x199c300, xSrc=0, ySrc=0, xMsk=0, 
    yMsk=0, xDst=0, yDst=0, width=<value optimized out>, 
    height=<value optimized out>) at cw_render.c:274
	pScreen = <value optimized out>
	src_picture_x_off = 0
	src_picture_y_off = 0
	pBackingSrcPicture = (PicturePtr) 0x199c140
	msk_picture_x_off = 0
	msk_picture_y_off = 0
	pBackingMskPicture = (PicturePtr) 0x199c230
	dst_picture_x_off = 0
	dst_picture_y_off = 0
	pBackingDstPicture = (PicturePtr) 0x20
#8  0x0000000000531048 in damageComposite (op=0 '\0', pSrc=0x199c140, 
    pMask=0x199c230, pDst=0x199c300, xSrc=0, ySrc=1, xMask=0, 
    yMask=<value optimized out>, xDst=<value optimized out>, 
    yDst=<value optimized out>, width=<value optimized out>, 
    height=<value optimized out>) at damage.c:576
	pScreen = <value optimized out>
#9  0x000000000051c9ff in ProcRenderComposite (client=0x8230b0) at render.c:729
	pSrc = (PicturePtr) 0x0
	pMask = (PicturePtr) 0x0
	pDst = (PicturePtr) 0x20
#10 0x000000000044d082 in Dispatch () at dispatch.c:468
	clientReady = <value optimized out>
	result = 0
	client = (ClientPtr) 0x19860e0
	nready = 0
	start_tick = 1460
#11 0x0000000000433b6a in main (argc=4, argv=0x7fffbc687b38, 
    envp=<value optimized out>) at main.c:452
	pScreen = <value optimized out>
	i = 1
	error = 0
	xauthfile = <value optimized out>
	alwaysCheckForInput = {0, 1}