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> From: Amir Rajan <ar@amirrajan.net>
> Date: Sat, 11 Jan 2025 01:52:43 -0600
>
> You can provide any mode to get to the customization box

I tried text-mode and emacs-lisp-mode, but I don't get any crash.

By "search box" do you mean the one after the first 3 lines in the
*Customize Group: Text* buffer, the one which says "Search" on the
right?  If so, what did you type there?

Alternatively, can run Emacs under GDB, and when it crashes, show the
arguments to 'floor'?  (Let me know if you need instructions for how
to do that in GDB.)