bug#46906: 28.0.50; byte compiler infloops trying to compile infloop

[Lars Ingebrigtsen]

Pip Cet <pipcet@gmail.com> writes:

> I think we're just going to have to put in a test which, on systems
> with the bug, loops indefinitely. We could make it "expensive", though
> it isn't, really.
>
> (I'm not sure how many people are trying to run the Emacs 28 testsuite
> against Emacs 27, or anything like that. It might be a non-issue.)

It's probably not an issue in practice, but it does seem rather
unsatisfactory that we don't have a mechanism for doing tests for
infloops in general.

I wonder whether we could cobble up something just for ert.  For
instance... doing a
(start-process ... "sleep 1; kill -s SIGUSR1 $EMACS_PID") or similar,
and then hook the SIGUSR1 handler to...  er...  do something useful
here.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no