Invoking x86-lookup freezes Emacs

[Dan Rounds]

When I run the command x86-lookup, Emacs freezes (forever).

I got my setup from here. It looks like this:

(use-package x86-lookup
  :ensure t
  :config
  (setq x86-lookup-pdf "~/Dropbox/reference/intel-64-iA32-Instruction-set-reference-vol2.pdf")
  )
(use-package nasm-mode
  :ensure t
  :config
  (add-hook 'asm-mode-hook 'nasm-mode)
  )

• Looking at processes running on my system, gs (ghostscript) runs when the I use the command, and then Emacs freezes
• The path to the PDF does exist
• The PDF in question is 2348 pages long
• My Emacs version is 26.3
• This is on a Linux system
• I do have pdftotext installed
• Emacs will also crash if I simply try to open that PDF (i.e. in the normal way one would open a file)

Obviously, I might just be doing something bone-headedly wrong, here (like linking to the wrong PDF).

Thanks.