After installing Little Snitch application and rebooting, the system kernel panics implicating a Bit9 kernel extension.
Symptoms A kernel panic happens after installing or uninstalling Little Snitch
When installing their KEXT, Little Snitch forces a kextcache update using the kextcache command. This technique is ‘heavy-handed’ as the system will update the kextcache for them when they place their driver in /System/Library/Extensions. It is the conflict with their manual call of kextcache and the systems automated update that results in kextcache corruption if a reboot is performed immediately after install or uninstall.
This problem can be worked around.
1. Install Little Snitch before Bit9, or
2. After installing Little Snitch, do not reboot right away. Wait 5 minutes then issue the following command:
sudo touch /System/Library/Extensions
this will ask the system to update the kernel cache. Wait 5 more minutes then reboot.