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From: "palves at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug python/14382] gdb hangs after plotting with matplotlib
Date: Tue, 26 May 2015 08:56:00 -0000	[thread overview]
Message-ID: <bug-14382-4717-61jZTsrg1j@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-14382-4717@http.sourceware.org/bugzilla/>

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

--- Comment #15 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.

Hmm, doesn't look like the sigactions are actually ignored, according to:


http://stackoverflow.com/questions/20228092/can-there-be-a-race-between-signalfd-and-sigaction

If both the handler setup by the library is called, and gdb's signalfd
descriptor is waken, then it might be just what we need.

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  parent reply	other threads:[~2015-05-26  8:56 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-21 15:28 [Bug python/14382] New: " joeneeman at gmail dot com
2012-07-31 15:54 ` [Bug python/14382] " tromey at redhat dot com
2012-08-07  0:35 ` joeneeman at gmail dot com
2012-08-07  2:15 ` joeneeman at gmail dot com
2012-08-15 21:33 ` tromey at redhat dot com
2012-08-16 14:24 ` tromey at redhat dot com
2012-08-17  0:51 ` joeneeman at gmail dot com
2012-08-22 15:31 ` palves at redhat dot com
2012-08-22 16:58 ` tromey at redhat dot com
2013-03-07  9:16 ` m at bruenink dot de
2013-08-12 19:35 ` aegges at web dot de
2015-05-24 19:34 ` tromey at sourceware dot org
2015-05-25  8:36 ` palves at redhat dot com
2015-05-25  8:39 ` palves at redhat dot com
2015-05-25 20:52 ` tromey at sourceware dot org
2015-05-26  8:29 ` palves at redhat dot com
2015-05-26  8:56 ` palves at redhat dot com [this message]
2015-05-26  9:00 ` palves at redhat dot com
2015-05-26 10:26 ` palves at redhat dot com
2015-05-26 10:30 ` palves at redhat dot com
2015-05-26 10:32 ` palves at redhat dot com
2015-05-27  3:06 ` tromey at sourceware dot org
2015-05-27 16:36 ` xdje42 at gmail dot com
2015-05-27 18:37 ` palves at redhat dot com
2015-05-27 21:19 ` dje at google dot com
2015-05-28 11:45 ` palves at redhat dot com
2023-09-13 14:56 ` tromey at sourceware dot org

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