(gdb) bt #0 0x080ecc33 in NVSync (pScrn=0x8ba2368) at nv_xaa.c:301 #1 0x083c74d1 in XAAComposite (op=3 '\003', pSrc=0x8e54840, pMask=0x8e548b0, pDst=0x9458600, xSrc=112, ySrc=17, xMask=112, yMask=17, xDst=897, yDst=33, width=10, height=5) at xaaPict.c:522 #2 0x08694ead in cwComposite (op=3 '\003', pSrcPicture=0x8e54840, pMskPicture=0x8e548b0, pDstPicture=0x9458600, xSrc=112, ySrc=17, xMsk=112, yMsk=17, xDst=897, yDst=33, width=10, height=5) at cw_render.c:269 #3 0x08687c94 in damageComposite (op=3 '\003', pSrc=0x8e54840, pMask=0x8e548b0, pDst=0x9458600, xSrc=112, ySrc=17, xMask=112, yMask=17, xDst=897, yDst=33, width=10, height=5) at damage.c:517 #4 0x0897fb0e in CompositePicture (op=3 '\003', pSrc=0x8e54840, pMask=0x8e548b0, pDst=0x9458600, xSrc=112, ySrc=17, xMask=112, yMask=17, xDst=897, yDst=33, width=10, height=5) at picture.c:1358 #5 0x08981b2c in ProcRenderComposite (client=0x8e3ddf8) at render.c:729 #6 0x08984350 in ProcRenderDispatch (client=0x8e3ddf8) at render.c:1846 #7 0x0851233e in Dispatch () at dispatch.c:455 #8 0x08529a91 in main (argc=7, argv=0xbff94b24, envp=0xbff94b44) at main.c:476 (gdb)