From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: ludovic.courtes@inria.fr (Ludovic =?UTF-8?Q?Court=C3=A8s?=) Newsgroups: gmane.lisp.guile.bugs Subject: bug#14640: SA_RESTART prevents execution of signal handlers Date: Mon, 17 Jun 2013 15:54:45 +0200 Message-ID: <87sj0gx2oq.fsf@inria.fr> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1371478041 32728 80.91.229.3 (17 Jun 2013 14:07:21 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 17 Jun 2013 14:07:21 +0000 (UTC) To: 14640@debbugs.gnu.org Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Mon Jun 17 16:07:21 2013 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Uoa5V-000600-Nd for guile-bugs@m.gmane.org; Mon, 17 Jun 2013 16:07:17 +0200 Original-Received: from localhost ([::1]:42105 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uoa5V-0006on-6L for guile-bugs@m.gmane.org; Mon, 17 Jun 2013 10:07:17 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36556) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uoa5N-0006np-02 for bug-guile@gnu.org; Mon, 17 Jun 2013 10:07:14 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uoa5G-0002Cx-Rw for bug-guile@gnu.org; Mon, 17 Jun 2013 10:07:08 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:56383) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uoa5G-0002Ct-PZ for bug-guile@gnu.org; Mon, 17 Jun 2013 10:07:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Uoa5G-0008Kb-CZ for bug-guile@gnu.org; Mon, 17 Jun 2013 10:07:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: ludovic.courtes@inria.fr (Ludovic =?UTF-8?Q?Court=C3=A8s?=) Original-Sender: "Debbugs-submit" Resent-CC: bug-guile@gnu.org Resent-Date: Mon, 17 Jun 2013 14:07:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 14640 X-GNU-PR-Package: guile X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-guile@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.137147797531824 (code B ref -1); Mon, 17 Jun 2013 14:07:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 17 Jun 2013 14:06:15 +0000 Original-Received: from localhost ([127.0.0.1]:50693 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Uoa4V-0008HC-3a for submit@debbugs.gnu.org; Mon, 17 Jun 2013 10:06:15 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:34540) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Uoa4S-0008Gi-Uo for submit@debbugs.gnu.org; Mon, 17 Jun 2013 10:06:13 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uoa4G-0001ae-FT for submit@debbugs.gnu.org; Mon, 17 Jun 2013 10:06:07 -0400 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:41417) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uoa4G-0001aK-CK for submit@debbugs.gnu.org; Mon, 17 Jun 2013 10:06:00 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36239) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uoa4D-0006da-91 for bug-guile@gnu.org; Mon, 17 Jun 2013 10:06:00 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UoZtR-0006FF-7K for bug-guile@gnu.org; Mon, 17 Jun 2013 09:56:02 -0400 Original-Received: from mail3-relais-sop.national.inria.fr ([192.134.164.104]:8254) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoZtQ-0006Eh-V3 for bug-guile@gnu.org; Mon, 17 Jun 2013 09:54:49 -0400 X-IronPort-AV: E=Sophos;i="4.87,881,1363129200"; d="scan'208";a="18049316" Original-Received: from reverse-83.fdn.fr (HELO pluto) ([80.67.176.83]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/DHE-RSA-AES128-SHA; 17 Jun 2013 15:54:46 +0200 X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 29 Prairial an 221 de la =?UTF-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 83C4 F8E5 10A3 3B4C 5BEA D15D 77DD 95E2 EA52 ECF4 X-OS: x86_64-unknown-linux-gnu User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. 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X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Original-Sender: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.bugs:7179 Archived-At: When using SA_RESTART, signal handlers are never executed, as in this example (checked on 2.0.9+): --8<---------------cut here---------------start------------->8--- (sigaction SIGALRM (lambda (signum) (pk 'sig signum)) SA_RESTART) (alarm 3) (pk 'char (read-char)) --8<---------------cut here---------------end--------------->8--- Presumably this is because the read(2) syscall is automatically restarted, leaving no chance for the handler async to run. Ludo=E2=80=99.