On 26 February 2017 at 15:47, Eli Zaretskii <address@hidden
>> From: Richard Copley <address@hidden
>> Date: Sat, 25 Feb 2017 22:02:17 +0000
>> Cc: address@hidden
>> A negative test result: from "emacs -Q", this recipe
>> doesn't cause a hang:
>> ;; open an Ediff control panel frame
>> M-x ediff-buffers RET *scratch* RET *Messages* RET
>> ;; Restart the computer.
>> ;; (Result: the computer restarts normally.)
> Probably because the Ediff control frame is not the selected one.
It would have been, with that recipe.