Re: [BUG] Non-local exit in thunk from system-async-mark doesn't restore asyncs block

[Maxime Devos]

Op 06-10-2023 om 06:50 schreef Andrew Tropin:

TLDR:
abort-to-prompt restores asyncs block level.
abort-to-prompt from a procedure scheduled with system-async-mark
doesn't restort asyncs block level.

Looks like a duplicate or variant of
<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=48566>
to me.  (Maybe that's why you put me in CC?)

It has a smaller/simpler reproducer.



Or maybe I'm confusing things with another bug ...

Don't have more information, though, beyond a guess that maybe the blocking/unblocking is actually going well but due to continuation shenanigans, the block level would need to (temporarily) become negative, and libguile/asyncs.c is too strict in its checks.

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