#0  0x0071d7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x007f3349 in ioctl () from /lib/tls/libc.so.6
#2  0x0809a67d in xf86ioctl (fd=6, request=1074291754, argp=0xbffff260)
    at libc_wrapper.c:464
#3  0x009a58bd in drmGetLock (fd=6, context=4294966784, flags=3221221984)
    at xf86drm.c:1259
#4  0x00579b58 in DRILock (pScreen=0xfffffe00, flags=1074291754) at dri.c:1912
#5  0x00579dca in DRIDoWakeupHandler (screenNum=-1073745312, wakeupData=0x0,
    result=1, pReadmask=0x81f1640) at dri.c:1386
#6  0x00579253 in DRIWakeupHandler (wakeupData=0x0, result=1,
    pReadmask=0x81f1640) at dri.c:1358
#7  0x080bc68a in WakeupHandler (result=1, pReadmask=0x81f1640)
    at dixutils.c:487
#8  0x080d6334 in WaitForSomething (pClientsReady=0xbffff590) at WaitFor.c:243
#9  0x080bbe1a in Dispatch () at dispatch.c:384