Does the crash happen often, or was it a one-time occurrence? If you can reproduce the crash, you might try creating an /etc/X11/xorg.conf file that turns off SNA (using UXA instead):
Section "Device" Identifier "Card0" Driver "intel" Option "AccelMethod" "uxa" EndSection
Does the crash happen often, or was it a one-time occurrence? If you can reproduce the crash, you might try creating an /etc/X11/xorg.conf file that turns off SNA (using UXA instead):
Section "Device"
Identifier "Card0"
Driver "intel"
Option "AccelMethod" "uxa"
EndSection