X.Org server randomly crashes. Log:

[  3606.036] (EE) 
[  3606.036] (EE) Backtrace:
[  3606.036] (EE) 0: /usr/bin/X (xorg_backtrace+0x41) [0x58cc31]
[  3606.036] (EE) 1: /usr/bin/X (0x400000+0x190e09) [0x590e09]
[  3606.036] (EE) 2: /lib64/libc.so.6 (0x7f7d69db2000+0x34dc0) [0x7f7d69de6dc0]
[  3606.036] (EE) 3: /usr/lib64/xorg/modules/drivers/intel_drv.so
(0x7f7d6564f000+0x17ebd) [0x7f7d65666ebd]
[  3606.036] (EE) 4: /usr/lib64/xorg/modules/drivers/intel_drv.so
(0x7f7d6564f000+0x191e7) [0x7f7d656681e7]
[  3606.036] (EE) 5: /usr/lib64/xorg/modules/drivers/intel_drv.so
(0x7f7d6564f000+0x24873) [0x7f7d65673873]
[  3606.036] (EE) 6: /usr/lib64/xorg/modules/drivers/intel_drv.so
(0x7f7d6564f000+0x48e1c) [0x7f7d65697e1c]
[  3606.036] (EE) 7: /usr/lib64/xorg/modules/drivers/intel_drv.so
(0x7f7d6564f000+0x49045) [0x7f7d65698045]
[  3606.037] (EE) 8: /usr/bin/X (0x400000+0x11adaf) [0x51adaf]
[  3606.037] (EE) 9: /usr/bin/X (0x400000+0xd7309) [0x4d7309]
[  3606.037] (EE) 10: /usr/bin/X (0x400000+0xd8685) [0x4d8685]
[  3606.037] (EE) 11: /usr/bin/X (0x400000+0x3d0df) [0x43d0df]
[  3606.037] (EE) 12: /usr/bin/X (0x400000+0x4109b) [0x44109b]
[  3606.037] (EE) 13: /lib64/libc.so.6 (__libc_start_main+0xf0)
[0x7f7d69dd2610]
[  3606.037] (EE) 14: /usr/bin/X (_start+0x29) [0x42c639]
[  3606.037] (EE) 
[  3606.037] (EE) Segmentation fault at address 0x0
[  3606.037] (EE) 
Fatal server error:
[  3606.037] (EE) Caught signal 11 (Segmentation fault). Server aborting
[  3606.038] (EE) 
[  3606.038] (EE) 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
[  3606.038] (EE) Please also check the log file at "/var/log/Xorg.0.log" for
additional information.
[  3606.038] (EE) 
[  3606.038] (II) AIGLX: Suspending AIGLX clients for VT switch
[  3606.141] (EE) Server terminated with error (1). Closing log file.

On Tumbleweed,
4.3.0-1-default,
X.Org X Server 1.17.4
Release Date: 2015-10-28
X Protocol Version 11, Revision 0