Ar an t-ochtú lá déag de mí na Nollaig, scríobh Stephen J. Turnbull:
> QUERY
>
> Aidan Kehoe writes:
>
> > Anyway, given that we know it's happened, and that the _trapping_problems
> > code should prevent it happening in the future, does anyone have any
> > objections to this?
>
> Yes. We *want* bugs that we don't understand to happen, so that we
> can diagnose and fix them. I think this should be an
> assert(!in_redisplay) or whatever the idiom is. Or if
> _trapping_problems has an abort option, use it.
>
> If we discover a valid reason for delete_frame to get called in
> redisplay,
My point was that Thomas just did. We don’t know the details, and would be
very lucky to learn them, but I’m pretty sure he didn’t attach to the
process with a debugger, put a breakpoint in redisplay, and call
delete_frame_internal himself. Unless those wily SXEmacs folk put him up to
it to sabotage our development.
> then we will need to condition on that to prevent the
> hook from being called. Or, more likely, find a way to postpone the
> delete_frame until we're out of the redisplay critical section.
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