From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Thomas Gleixner Newsgroups: gmane.emacs.bugs Subject: bug#34235: 0e334db6bb4b1fd1e2d72c1f3d8f004313cd9f94 (posix-timers: Fix division by zero bug). Problems with glibc. Date: Fri, 1 Feb 2019 23:04:48 +0100 (CET) Message-ID: References: <20190201214700.GA4950@ACM> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="190299"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Alpine 2.21 (DEB 202 2017-01-01) Cc: Alex Branham , 34235@debbugs.gnu.org, linux-kernel@vger.kernel.org To: Alan Mackenzie Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Feb 01 23:21:19 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 (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gphBX-000nNB-MD for geb-bug-gnu-emacs@m.gmane.org; Fri, 01 Feb 2019 23:21:19 +0100 Original-Received: from localhost ([127.0.0.1]:34075 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gphBW-0003nm-Lq for geb-bug-gnu-emacs@m.gmane.org; Fri, 01 Feb 2019 17:21:18 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:54615) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gphBQ-0003nd-3w for bug-gnu-emacs@gnu.org; Fri, 01 Feb 2019 17:21:13 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gphBP-0002UN-3f for bug-gnu-emacs@gnu.org; Fri, 01 Feb 2019 17:21:11 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:56051) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gphBG-0002KT-Bp for bug-gnu-emacs@gnu.org; Fri, 01 Feb 2019 17:21:05 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gphBF-0004uR-Um for bug-gnu-emacs@gnu.org; Fri, 01 Feb 2019 17:21:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Thomas Gleixner Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 01 Feb 2019 22:21:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 34235 X-GNU-PR-Package: emacs Original-Received: via spool by 34235-submit@debbugs.gnu.org id=B34235.154905963118811 (code B ref 34235); Fri, 01 Feb 2019 22:21:01 +0000 Original-Received: (at 34235) by debbugs.gnu.org; 1 Feb 2019 22:20:31 +0000 Original-Received: from localhost ([127.0.0.1]:55332 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gphAk-0004tL-Sz for submit@debbugs.gnu.org; Fri, 01 Feb 2019 17:20:31 -0500 Original-Received: from galois.linutronix.de ([146.0.238.70]:39835) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gpgve-0004Ue-GC for 34235@debbugs.gnu.org; Fri, 01 Feb 2019 17:04:54 -0500 Original-Received: from p5492e0d8.dip0.t-ipconnect.de ([84.146.224.216] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1gpgvZ-0007mN-5H; Fri, 01 Feb 2019 23:04:49 +0100 In-Reply-To: <20190201214700.GA4950@ACM> X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1, SHORTCIRCUIT=-0.0001 X-Mailman-Approved-At: Fri, 01 Feb 2019 17:20:29 -0500 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:154988 Archived-At: Hello Alan, On Fri, 1 Feb 2019, Alan Mackenzie wrote: > 0e334db6bb4b1fd1e2d72c1f3d8f004313cd9f94 > posix-timers: Fix division by zero bug > Committed: 2018-12-17 17:35:45 +0100 > > With this patch in place I am seeing problems with glibc's function > timer_create. I am an Emacs maintainer, and saw these problems whilst > investigating Emacs bug #34235 "27.0.50; lisp profiler does not work". > Emacs's profiler fails in kernel 4.19.13, but works in a version of > 4.19.13 with the patch reversed, otherwise unchanged. My current version > of glibc is 2.27-r6 (I think the "-r6" comes from Gentoo, my distro). Please upgrade to 4.19.19. The issue should be fixed there with the backported variant of 93ad0fc088c5 ("posix-cpu-timers: Unbreak timer rearming") Commit 21c0d1621b8d4b in 4.19.19 Thanks, tglx