Comment 2 for bug 165018

Could you provide more detail about how your system is crashing? What part of your system is crashing? Is this a default fiesty install or have installed a custom kernel? I didn't see any oops in your dmesg dump. The only "error" that I can see is the message below

audit(1196006403.262:3): type=1503 operation="inode_permission" requested_mask="a" denied_mask="a" name="/dev/tty" pid=4838 profile="/usr/sbin/cupsd"

which means AppArmor is denying console access to cupsd, which could possibly cause cups to crash. A possible
quick solution is to to run logprof

> logprof /usr/sbin/cupsd

which should prompt you to add the "a" permission for /dev/tty. Alternately you could also manual edit the profile it should be in "/etc/apparmor.d/usr.sbin.cupsd". You will need to add the line

  /dev/tty a,