Comment 2 for bug 1016046

 Backtrace:
 [ 24212.636] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7fb0d91aa866]
 [ 24212.636] 1: /usr/bin/X (0x7fb0d9022000+0x18c70a) [0x7fb0d91ae70a]
 [ 24212.636] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fb0d8348000+0xfcb0) [0x7fb0d8357cb0]
 [ 24212.636] 3: /usr/bin/X (0x7fb0d9022000+0x55558) [0x7fb0d9077558]
 [ 24212.636] 4: /usr/bin/X (DeliverRawEvent+0xad) [0x7fb0d907f5ed]
 [ 24212.636] 5: /usr/bin/X (0x7fb0d9022000+0x11efe9) [0x7fb0d9140fe9]
 [ 24212.636] 6: /usr/bin/X (0x7fb0d9022000+0x149eb1) [0x7fb0d916beb1]
 [ 24212.636] 7: /usr/bin/X (mieqProcessDeviceEvent+0x1e1) [0x7fb0d918b391]
 [ 24212.636] 8: /usr/bin/X (0x7fb0d9022000+0x4620d) [0x7fb0d906820d]
 [ 24212.636] 9: /usr/bin/X (DisableDevice+0x88) [0x7fb0d9069908]
 [ 24212.636] 10: /usr/bin/X (RemoveDevice+0x218) [0x7fb0d9069d48]
 [ 24212.636] 11: /usr/bin/X (DeleteInputDeviceRequest+0x41) [0x7fb0d90c1dc1]
 [ 24212.636] 12: /usr/bin/X (0x7fb0d9022000+0x43d5c) [0x7fb0d9065d5c]
 [ 24212.636] 13: /usr/bin/X (0x7fb0d9022000+0x44301) [0x7fb0d9066301]
 [ 24212.636] 14: /usr/bin/X (0x7fb0d9022000+0x3d71c) [0x7fb0d905f71c]
 [ 24212.636] 15: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fb0d71dd76d]
 [ 24212.636] 16: /usr/bin/X (0x7fb0d9022000+0x3d99d) [0x7fb0d905f99d]
 [ 24212.636] Segmentation fault at address 0xc0
 [ 24212.636]
 Caught signal 11 (Segmentation fault). Server aborting