From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#36609: 27.0.50; Possible race-condition in threading implementation Date: Fri, 12 Jul 2019 15:55:22 +0300 Message-ID: <83k1cn2z0l.fsf@gnu.org> References: <87muhks3b5.fsf@hochschule-trier.de> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="109814"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 36609@debbugs.gnu.org, politza@hochschule-trier.de To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jul 12 14:56:07 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hlv5r-000SMo-Dr for geb-bug-gnu-emacs@m.gmane.org; Fri, 12 Jul 2019 14:56:07 +0200 Original-Received: from localhost ([::1]:49172 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hlv5p-00057F-LB for geb-bug-gnu-emacs@m.gmane.org; Fri, 12 Jul 2019 08:56:05 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44630) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hlv5n-000579-3N for bug-gnu-emacs@gnu.org; Fri, 12 Jul 2019 08:56:03 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hlv5m-0007wz-8W for bug-gnu-emacs@gnu.org; Fri, 12 Jul 2019 08:56:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:58774) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hlv5m-0007wS-4X for bug-gnu-emacs@gnu.org; Fri, 12 Jul 2019 08:56:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hlv5m-0005Lv-1P for bug-gnu-emacs@gnu.org; Fri, 12 Jul 2019 08:56:02 -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, 12 Jul 2019 12:56:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 36609 X-GNU-PR-Package: emacs Original-Received: via spool by 36609-submit@debbugs.gnu.org id=B36609.156293614120546 (code B ref 36609); Fri, 12 Jul 2019 12:56:01 +0000 Original-Received: (at 36609) by debbugs.gnu.org; 12 Jul 2019 12:55:41 +0000 Original-Received: from localhost ([127.0.0.1]:39362 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hlv5Q-0005LK-QS for submit@debbugs.gnu.org; Fri, 12 Jul 2019 08:55:41 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:60393) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hlv5O-0005L6-6R for 36609@debbugs.gnu.org; Fri, 12 Jul 2019 08:55:38 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:39596) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hlv5I-00079S-F8; Fri, 12 Jul 2019 08:55:32 -0400 Original-Received: from [176.228.60.248] (port=2170 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1hlv5H-0006cs-Bp; Fri, 12 Jul 2019 08:55:31 -0400 In-reply-to: (message from Pip Cet on Fri, 12 Jul 2019 12:44:35 +0000) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:162762 Archived-At: > From: Pip Cet > Date: Fri, 12 Jul 2019 12:44:35 +0000 > Cc: 36609@debbugs.gnu.org > > Okay, I'm still not sure this is really the problem Andreas was > seeing, but this code fails to work with xg_select: > > (let ((thread (make-thread (lambda () > (sleep-for 3))))) > (thread-yield) > (thread-signal thread 'error nil)) What do you mean by "fails"? What do you see when you eval this? > Proposed patch attached. As I said earlier, I don't think it's right to use stack unwinding at this level. (Did you try this in a -nw session?) I'd appreciate a description of what you think happens here, and why. Thanks.