From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#28472: 26.0.50; Deadlock in Fkill_emacs on MS-Windows Date: Sat, 16 Sep 2017 14:15:51 +0300 Message-ID: <8360cilwrc.fsf@gnu.org> References: <59bcfd7b.53bf1c0a.52d80.1651@mx.google.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1505560573 19262 195.159.176.226 (16 Sep 2017 11:16:13 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 16 Sep 2017 11:16:13 +0000 (UTC) Cc: 28472@debbugs.gnu.org To: Richard Copley Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Sep 16 13:16:07 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dtB4v-0004jP-Sm for geb-bug-gnu-emacs@m.gmane.org; Sat, 16 Sep 2017 13:16:06 +0200 Original-Received: from localhost ([::1]:56770 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dtB51-0002Hn-Gp for geb-bug-gnu-emacs@m.gmane.org; Sat, 16 Sep 2017 07:16:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:54050) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dtB4t-0002Hb-Hd for bug-gnu-emacs@gnu.org; Sat, 16 Sep 2017 07:16:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dtB4s-00020J-NY for bug-gnu-emacs@gnu.org; Sat, 16 Sep 2017 07:16:03 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:34713) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dtB4s-000203-JW for bug-gnu-emacs@gnu.org; Sat, 16 Sep 2017 07:16:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dtB4s-0000vz-86 for bug-gnu-emacs@gnu.org; Sat, 16 Sep 2017 07:16:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 16 Sep 2017 11:16:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 28472 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 28472-submit@debbugs.gnu.org id=B28472.15055605573285 (code B ref 28472); Sat, 16 Sep 2017 11:16:02 +0000 Original-Received: (at 28472) by debbugs.gnu.org; 16 Sep 2017 11:15:57 +0000 Original-Received: from localhost ([127.0.0.1]:43393 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dtB4m-0000qe-P4 for submit@debbugs.gnu.org; Sat, 16 Sep 2017 07:15:56 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:34768) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dtB4k-0000k7-TE for 28472@debbugs.gnu.org; Sat, 16 Sep 2017 07:15:55 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dtB4a-0001r2-2U for 28472@debbugs.gnu.org; Sat, 16 Sep 2017 07:15:49 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:35393) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dtB4Z-0001qt-Ta; Sat, 16 Sep 2017 07:15:43 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:5000 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dtB4Z-00059C-AV; Sat, 16 Sep 2017 07:15:43 -0400 In-reply-to: <59bcfd7b.53bf1c0a.52d80.1651@mx.google.com> (message from Richard Copley on Sat, 16 Sep 2017 11:31:21 +0100) 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: 208.118.235.43 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:137003 Archived-At: > From: Richard Copley > Date: Sat, 16 Sep 2017 11:31:21 +0100 > > Very occasionally, Emacs hangs on exit. For example, this happens > sometimes when bootstrapping Emacs (which involves starting emacs.exe > multiple times). > > Here is a set of backtraces from attaching gdb to one of the stuck > processes: Thanks. I see nothing in this backtrace that could tell what to do to avoid the hang. All the threads are stuck in system calls, two of then in WaitForSingleObject. So it sounds like some race condition, but I have no idea what that could be. FWIW, it never happened to me during a bootstrap. It could be bug#14333, which we never solved. But the backtraces there were more informative.