From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#50043: 28.0.50; USABLE_SIGOI undef code paths do not work correctly Date: Fri, 13 Aug 2021 18:51:53 +0300 Message-ID: <83zgtlbaw6.fsf@gnu.org> References: <874kbtfthj.fsf@gnus.org> <835yw9cwoa.fsf@gnu.org> <87mtpla013.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31033"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 50043@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 13 17:53:13 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mEZUe-0007pd-Sh for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 13 Aug 2021 17:53:12 +0200 Original-Received: from localhost ([::1]:54050 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mEZUd-0005XL-Ba for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 13 Aug 2021 11:53:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48384) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mEZUU-0005Ww-Gl for bug-gnu-emacs@gnu.org; Fri, 13 Aug 2021 11:53:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:59658) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mEZUU-0002cS-AA for bug-gnu-emacs@gnu.org; Fri, 13 Aug 2021 11:53:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mEZUU-0006Co-4P for bug-gnu-emacs@gnu.org; Fri, 13 Aug 2021 11:53:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 13 Aug 2021 15:53:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 50043 X-GNU-PR-Package: emacs Original-Received: via spool by 50043-submit@debbugs.gnu.org id=B50043.162886993523786 (code B ref 50043); Fri, 13 Aug 2021 15:53:02 +0000 Original-Received: (at 50043) by debbugs.gnu.org; 13 Aug 2021 15:52:15 +0000 Original-Received: from localhost ([127.0.0.1]:42971 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mEZTj-0006BZ-BS for submit@debbugs.gnu.org; Fri, 13 Aug 2021 11:52:15 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:60060) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mEZTh-0006BM-3D for 50043@debbugs.gnu.org; Fri, 13 Aug 2021 11:52:14 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:46362) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mEZTb-000212-Oz; Fri, 13 Aug 2021 11:52:07 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1824 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mEZTa-0005ms-Rj; Fri, 13 Aug 2021 11:52:07 -0400 In-Reply-To: <87mtpla013.fsf@gnus.org> (message from Lars Ingebrigtsen on Fri, 13 Aug 2021 16:31:52 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:211778 Archived-At: > From: Lars Ingebrigtsen > Cc: 50043@debbugs.gnu.org > Date: Fri, 13 Aug 2021 16:31:52 +0200 > > Eli Zaretskii writes: > > > can you tell where does it hang, and why? Bonus points for explaining > > why the same scenario doesn't hang for USABLE_SIGIO platforms. > > It's hanging here: > > x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type, > Lisp_Object time_stamp, Lisp_Object frame) > { > [...] > wait_reading_process_output (secs, nsecs, 0, false, > reading_selection_reply, NULL, 0); > > That is, it's not really hanging hanging, but this sometimes takes a > couple of seconds without SIGIO, while it returns instantaneously with > SIGOI. Do you understand which code un-hangs it when USABLE_SIGIO is defined? Or is it a SIGIO signal that arrives and does that? If the latter, any idea what causes that SIGIO? Thanks.