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[Bug python/14382] gdb hangs after plotting with matplotlib


https://sourceware.org/bugzilla/show_bug.cgi?id=14382

--- Comment #14 from Pedro Alves <palves at redhat dot com> ---
(In reply to Tom Tromey from comment #13)
> I think if gdb uses signalfd to get SIGCHLD, and blocks it (what the
> man page says to do) then the various sigaction calls that libraries
> may do will just be ignored.

Ah, yes, but then the libraries were messing with SIGCHLD's sigaction because
they want to be notified of child exits, which would end up broken for them. 
Seems like a "what's the better breakage" decision case, and that may indeed be
better breakage.

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