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[Bug python/14382] gdb hangs after plotting with matplotlib
- From: "tromey at sourceware dot org" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Mon, 25 May 2015 20:52:04 +0000
- Subject: [Bug python/14382] gdb hangs after plotting with matplotlib
- Auto-submitted: auto-generated
- References: <bug-14382-4717 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=14382
--- Comment #13 from Tom Tromey <tromey at sourceware dot org> ---
(In reply to Pedro Alves from comment #11)
> Not sure how.
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.
This is kind of gross though.
> It is worth pointing out that the Qt and kernel folks working on a
> alternative that allows waiting for child exits without using signals at all:
>
> https://lwn.net/Articles/638613/
That does look promising.
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