Thanks for all the responses. In response to Paul, I have nothing in /sys that refers to slab or slub info. Actually nothing anywhere in the routers filesystem.
Rebuilt with newest changes. Status page is showing Device name, Gargoyle Version, Mem Usage, and CPU load. Nothing else shows up. However, simply remarking out lines 50 through 55 in the previous version in overview.sh gave the same result.
What's strange this time is that most of data shows up after a fresh install but after enabling wireless and changing the routers IP, it goes back to showing only part of the info. Restoring defaults doesn't change anything.
Any suggestions?
Thanks!
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Edit: After editing a few things in overview.sh, and then restoring it back to where it was, and saving it, the status screen now updates with info. Weird! Data present after reboot too.