#0  FatalError (f=0x61e878 "Bad valuators reported for device %s\n")
    at log.c:534
#1  0x00000000005a4399 in UpdateDeviceState (device=0xa7ba40, xE=0xa37b30, 
    count=84) at exevents.c:831
#2  0x00000000004bf6fe in DGAProcessPointerEvent (pScreen=0x8a6570, 
    de=0xa37b30, mouse=0xa7ba40) at xf86DGA.c:1093
#3  0x00000000004bfb05 in DGAHandleEvent (screen_num=0, event=0xa37b30, 
    device=0xa7ba40, nevents=1) at xf86DGA.c:1209
#4  0x00000000005123a4 in mieqProcessInputEvents () at mieq.c:358
#5  0x00000000004aa288 in ProcessInputEvents () at xf86Events.c:241
#6  0x00000000004503c1 in Dispatch () at dispatch.c:368
#7  0x0000000000434212 in main (argc=12, argv=0x7fff5663d208, 
    envp=0x7fff5663d270) at main.c:435