From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: busyloop in sigchld_handler Date: Wed, 28 Mar 2007 17:37:58 +0200 Message-ID: References: <87slbpo0pk.fsf@stupidchicken.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1175096342 17018 80.91.229.12 (28 Mar 2007 15:39:02 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 28 Mar 2007 15:39:02 +0000 (UTC) Cc: Chong Yidong , emacs-devel@gnu.org To: storm@cua.dk (Kim F. Storm) Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Mar 28 17:38:55 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1HWaEf-0003dS-SP for ged-emacs-devel@m.gmane.org; Wed, 28 Mar 2007 17:38:54 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HWaH9-0002ii-Bc for ged-emacs-devel@m.gmane.org; Wed, 28 Mar 2007 10:41:27 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HWaGK-0002K4-9o for emacs-devel@gnu.org; Wed, 28 Mar 2007 11:40:36 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HWaGI-0002Gn-NQ for emacs-devel@gnu.org; Wed, 28 Mar 2007 11:40:35 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HWaGI-0002Ga-IC for emacs-devel@gnu.org; Wed, 28 Mar 2007 10:40:34 -0500 Original-Received: from cantor2.suse.de ([195.135.220.15] helo=mx2.suse.de) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1HWaDo-0002Je-79 for emacs-devel@gnu.org; Wed, 28 Mar 2007 11:38:00 -0400 Original-Received: from Relay2.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 722A921612; Wed, 28 Mar 2007 17:37:58 +0200 (CEST) X-Yow: If I am elected no one will ever have to do their laundry again! In-Reply-To: (Kim F. Storm's message of "Wed, 28 Mar 2007 17:33:05 +0200") User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.91 (gnu/linux) X-detected-kernel: Linux 2.4-2.6 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:68717 Archived-At: storm@cua.dk (Kim F. Storm) writes: > Andreas Schwab writes: > >> We should probably just remove the loop altogether. > > The problem is not the loop, but that the first wait3 will take > "forever" without the preceding sleep. If wait3 would block here then it would be a serious kernel bug, or someone is defining WNOHANG to 0. Andreas. --=20 Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstra=DFe 5, 90409 N=FCrnberg, Germany PGP key fingerprint =3D 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED= 5 "And now for something completely different."