#0  0x00007fe89558e087 in ioctl () from /lib/libc.so.6
No symbol table info available.
#1  0x00007fe8939b4623 in drmIoctl (fd=8, request=25688, arg=0x0)
    at ../../libdrm/xf86drm.c:187
	ret = -1
#2  0x00007fe8939b4926 in drmCommandNone (fd=8, 
    drmCommandIndex=<value optimized out>) at ../../libdrm/xf86drm.c:2313
No locals.
#3  0x00007fe893529f29 in I830BlockHandler ()
   from /usr/lib/xorg/modules/drivers//intel_drv.so
No locals.
#4  0x0000000000532928 in AnimCurScreenBlockHandler (screenNum=0, 
    blockData=0x0, pTimeout=0x7fff9fa71c28, pReadmask=0x7d8b60)
    at ../../render/animcur.c:222
	pScreen = (ScreenPtr) 0x1196dd0
	as = (AnimCurScreenPtr) 0x3f212c0
	dev = (DeviceIntPtr) 0x0
	now = 0
	soonest = 4294967295
#5  0x00000000004fe6be in compBlockHandler (i=0, blockData=0x0, 
    pTimeout=0x7fff9fa71c28, pReadmask=0x7d8b60)
    at ../../composite/compinit.c:158
	pScreen = (ScreenPtr) 0x1196dd0
	cs = (CompScreenPtr) 0x3f0bd80
#6  0x0000000000450c40 in BlockHandler (pTimeout=0x7fff9fa71c28, 
    pReadmask=0x7d8b60) at ../../dix/dixutils.c:384
	i = 1
#7  0x00000000004ecac1 in WaitForSomething (pClientsReady=0x4136390)
    at ../../os/WaitFor.c:215
	i = 72338528
	waittime = {tv_sec = 0, tv_usec = 366000}
	wt = (struct timeval *) 0x7fff9fa71c10
	timeout = <value optimized out>
	clientsReadable = {fds_bits = {0 <repeats 16 times>}}
	clientsWritable = {fds_bits = {72338528, 67690672, 512, 1050, 32, 32, 
    0, 32, 69454640, 5200940, 140735871916912, 5181463, 349504, 
    140735871916992, 0, 69454640}}
	curclient = <value optimized out>
	selecterr = 0
	nready = <value optimized out>
	devicesReadable = {fds_bits = {0 <repeats 11 times>, 140735871916836, 
    16, 67938160, 68379536, 5339585}}
	now = 72338528
	someReady = 0
#8  0x000000000044cf90 in Dispatch () at ../../dix/dispatch.c:367
	result = 0
	client = (ClientPtr) 0x44fcc60
	nready = -1
	start_tick = <value optimized out>
#9  0x000000000043316d in main (argc=9, argv=0x7fff9fa71e08, 
    envp=<value optimized out>) at ../../dix/main.c:397
	i = 1
	alwaysCheckForInput = {0, 1}
quit
The program is running.  Quit anyway (and detach it)? (y or n) Detaching from program: /usr/bin/Xorg, process 5066