After upgrading kernel 327 -> 693, booting fails

Welp, after a successful install of 7.2, and a upgrade to 7.4 bringing the 693 kernel, I can't even boot. My kernel panics right at startup, no filesystems mounted, so no log files. All I have is a screenshot.

There's no knowledge articles on it, I found a few links on the internet to some kernel versions having a problem with this one bit of code but no resolutions, and the chat support isn't very helpful. If I can't get this fixed I can't utilize Red Hat in my environment, which would be very disappointing.

If anyone has any ideas of even how to start troubleshooting this, I'd be eternally grateful.