bug#49954: 28.0.50; TRAMP: cannot kill child processes: "Forbidden reentrant call of Tramp"

[Dima Kogan]

Hi. I just hit this error again, and tried to work around it with

  (setq debug-ignored-errors
    (cons 'remote-file-error debug-ignored-errors))

as you suggested. It doesn't work to kill the process, though. I C-c C-c
in my M-x shell, and it fails with a different error:

  tramp-accept-process-output: No catch for tag: non-essential, non-essential

Doing my caching dance actually makes C-c C-c do the right thing. Does
this make sense?