Atheros 9220 locking up system at boot

I decided to install 10.0-RELEASE-amd64 on my system tonight. If I tried to configure my wireless network with bsdinstall(8) the system hanged when it asked me if I wanted to use DHCP. Believing it was just an issue with bsdinstall(8) I restarted the installation and skipped the network configuration.

Once installed I rebooted and all was fine. Configured the network manually and rebooted again and the system is lucky to even get to a login prompt without locking up.
 
Hewitson said:
... and the system is lucky to even get to a login prompt without locking up.
But if you are lucky to get to a login prompt, can you pull the output of dmesg and pciconf -lvbce. These can be pretty large so best to copy to pastebin and provide links in your post.
 
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