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: Sat, 2 Feb 2019 10:21:40 +0100 (CET) Message-ID: References: <17880b13-2fde-764d-a284-11cf0caf1cec@cs.ucla.edu> 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="39595"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Alpine 2.21 (DEB 202 2017-01-01) Cc: Alan Mackenzie , Alex Branham , 34235@debbugs.gnu.org, linux-kernel@vger.kernel.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Feb 02 10:22:11 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 1gprV4-000AC5-RU for geb-bug-gnu-emacs@m.gmane.org; Sat, 02 Feb 2019 10:22:10 +0100 Original-Received: from localhost ([127.0.0.1]:39734 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gprV3-0000yY-Q3 for geb-bug-gnu-emacs@m.gmane.org; Sat, 02 Feb 2019 04:22:09 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:41474) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gprUx-0000yF-50 for bug-gnu-emacs@gnu.org; Sat, 02 Feb 2019 04:22:03 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gprUw-0003iI-EU for bug-gnu-emacs@gnu.org; Sat, 02 Feb 2019 04:22:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:56181) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gprUw-0003hx-AQ for bug-gnu-emacs@gnu.org; Sat, 02 Feb 2019 04:22:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gprUw-0000Rh-4b for bug-gnu-emacs@gnu.org; Sat, 02 Feb 2019 04:22:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Thomas Gleixner Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 02 Feb 2019 09:22:02 +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=B34235.15490993201705 (code B ref 34235); Sat, 02 Feb 2019 09:22:02 +0000 Original-Received: (at 34235) by debbugs.gnu.org; 2 Feb 2019 09:22:00 +0000 Original-Received: from localhost ([127.0.0.1]:55462 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gprUu-0000RR-7V for submit@debbugs.gnu.org; Sat, 02 Feb 2019 04:22:00 -0500 Original-Received: from galois.linutronix.de ([146.0.238.70]:40508) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gprUr-0000RG-Dd for 34235@debbugs.gnu.org; Sat, 02 Feb 2019 04:21:59 -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 1gprUb-0001OG-21; Sat, 02 Feb 2019 10:21:41 +0100 In-Reply-To: <17880b13-2fde-764d-a284-11cf0caf1cec@cs.ucla.edu> 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-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:154998 Archived-At: On Fri, 1 Feb 2019, Paul Eggert wrote: > Thanks for helping to track down this bug. Since the problem occurs only with > a few Linux kernel versions and affects Emacs only when doing CPU profiling, > it doesn't seem worth spending time to try to patch Emacs to work around the > bug. So I installed the attached patch into emacs-26's etc/PROBLEMS file to > warn users about the problem, and am closing the Emacs bug report. Can you please verify whether the issue is fixed with 4.19.19? The commit in question broke posix CPU timers as a unintended side effect and a follow up patch unbreaks them again. Thanks, tglx