From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Teika Kazura Newsgroups: gmane.emacs.bugs Subject: bug#15990: Bug-report: `sleep-for' doesn't sleep for expected period, maybe after async process invocation. Date: Thu, 28 Nov 2013 15:52:35 +0900 (JST) Message-ID: <20131128.155235.791210082742871046.teika@gmx.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1385664985 3722 80.91.229.3 (28 Nov 2013 18:56:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 28 Nov 2013 18:56:25 +0000 (UTC) To: 15990@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Nov 28 19:56:31 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Vm6lK-0008Cg-ID for geb-bug-gnu-emacs@m.gmane.org; Thu, 28 Nov 2013 19:56:30 +0100 Original-Received: from localhost ([::1]:43666 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vm6lK-0005hZ-9V for geb-bug-gnu-emacs@m.gmane.org; Thu, 28 Nov 2013 13:56:30 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:52820) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vm6l5-0005Rr-8S for bug-gnu-emacs@gnu.org; Thu, 28 Nov 2013 13:56:20 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Vm6kz-0000MD-A4 for bug-gnu-emacs@gnu.org; Thu, 28 Nov 2013 13:56:15 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:35092) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vm6kz-0000M5-6C for bug-gnu-emacs@gnu.org; Thu, 28 Nov 2013 13:56:09 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Vm6ky-0008GI-Gs for bug-gnu-emacs@gnu.org; Thu, 28 Nov 2013 13:56:08 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Teika Kazura Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 28 Nov 2013 18:56:08 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 15990 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.138566493231668 (code B ref -1); Thu, 28 Nov 2013 18:56:08 +0000 Original-Received: (at submit) by debbugs.gnu.org; 28 Nov 2013 18:55:32 +0000 Original-Received: from localhost ([127.0.0.1]:49107 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vm6kM-0008Eg-SS for submit@debbugs.gnu.org; Thu, 28 Nov 2013 13:55:31 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:43478) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VlvTO-0005ow-2m for submit@debbugs.gnu.org; Thu, 28 Nov 2013 01:53:14 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VlvTC-0007i3-TD for submit@debbugs.gnu.org; Thu, 28 Nov 2013 01:53:08 -0500 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:44260) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VlvTC-0007hz-Qh for submit@debbugs.gnu.org; Thu, 28 Nov 2013 01:53:02 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45186) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VlvT7-00039N-EG for bug-gnu-emacs@gnu.org; Thu, 28 Nov 2013 01:53:02 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VlvT2-0007cn-4H for bug-gnu-emacs@gnu.org; Thu, 28 Nov 2013 01:52:57 -0500 Original-Received: from mout.gmx.net ([212.227.15.18]:61996) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VlvT1-0007c7-Qr for bug-gnu-emacs@gnu.org; Thu, 28 Nov 2013 01:52:52 -0500 Original-Received: from localhost ([123.222.73.56]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0Lskr7-1VfLz71Wh7-012J94 for ; Thu, 28 Nov 2013 07:52:49 +0100 X-Provags-ID: V03:K0:GOv4EKmQUgfV0R95y4CGwidTm0l9n9qWP27Ql2v12JCJ2tkqgeg UGCd3s2WxZR7cLnme/FM2X8VL5BDXyrva4ToBg4vi7IW70RX05DJwhp1agdq6Rm/qWhcfpp pbI8PuWzdrrsUEWvef4ZGf8c34OlAWxlUQYsowvBWtDOuUjuIZ3Dyso/U6m0aCvOjRbrONl GvehOSz24/NzaEOqY5nQw== X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Mailman-Approved-At: Thu, 28 Nov 2013 13:55:28 -0500 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:81051 Archived-At: Hi, Emacs developers. * Bug description `sleep-for' ends too early, by not sleeping for the expected time. It's speculated that it's caused by a termination of an asynchronous process. [1] This bug does not always reproduce, but it often does. [1] http://stackoverflow.com/questions/14698081/elisp-sleep-for-doesnt-block-when-running-a-test-in-ert * Environment Gentoo Linux, Emacs-24.3 and 24.1. Debian Linux, Emacs-23.2 MacOS X, too, according to a page. [1] * Code to reproduce the bug Do "emacs -q" and run the code below. It uses an external Unix command "sleep". It has a line `(sleep-for 3)', but it *often* ends immediately. The last line judges the result so that you don't need a timer watch to confirm. As far as I tested, the bug shows 100%, but if the bug doesn't reproduce, well, please try several times, or another environment. ;-) (With the original code where I first met this problem, the bug occurrence rate exceeds 50%.) ------------------------------------------------------------------------ (let ((buf "*sleep-for test*") (now (cadr (current-time)))) (start-process "test" buf "sleep" "0.1") (sleep-for 3) (message "This should be t: %s" (< now (- (cadr (current-time)) 3)))) ------------------------------------------------------------------------ * Others The following bug report may be related. Not sure. http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6202 I think I can compile the bzr latest snapshot. (But it takes me 20 min. to compile 24.3. :P) Thank you very much. Best regards, Teika (Teika kazura)