From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.bugs Subject: bug#17561: Emacs can forget processes Date: Tue, 27 May 2014 17:47:41 -0700 Organization: UCLA Computer Science Department Message-ID: <5385322D.7030406@cs.ucla.edu> References: <537F773C.8060202@cs.ucla.edu> <20140523184419.70fe136d@forcix.jorgenschaefer.de> <538124C0.8080107@cs.ucla.edu> <20140525095735.6cfac9af@forcix.jorgenschaefer.de> <53837516.3070508@cs.ucla.edu> <20140526204952.1dba664e@forcix.jorgenschaefer.de> <5383D535.2000407@cs.ucla.edu> <20140527202756.7bade0ce@forcix.jorgenschaefer.de> <538506AB.3090201@cs.ucla.edu> <20140528001641.190b7ada@forcix.jorgenschaefer.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1401238170 8091 80.91.229.3 (28 May 2014 00:49:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 28 May 2014 00:49:30 +0000 (UTC) Cc: 17561@debbugs.gnu.org To: Jorgen Schaefer Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed May 28 02:49:23 2014 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 1WpS3W-00074P-EN for geb-bug-gnu-emacs@m.gmane.org; Wed, 28 May 2014 02:49:22 +0200 Original-Received: from localhost ([::1]:38968 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WpS3V-0003P6-Fa for geb-bug-gnu-emacs@m.gmane.org; Tue, 27 May 2014 20:49:21 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48533) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WpS3K-0003Ov-P4 for bug-gnu-emacs@gnu.org; Tue, 27 May 2014 20:49:18 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WpS3D-0005Gu-8C for bug-gnu-emacs@gnu.org; Tue, 27 May 2014 20:49:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:34950) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WpS3D-0005Gq-5R for bug-gnu-emacs@gnu.org; Tue, 27 May 2014 20:49:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WpS3C-00066C-CI for bug-gnu-emacs@gnu.org; Tue, 27 May 2014 20:49:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Paul Eggert Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 28 May 2014 00:49:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17561 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17561-submit@debbugs.gnu.org id=B17561.140123808423374 (code B ref 17561); Wed, 28 May 2014 00:49:02 +0000 Original-Received: (at 17561) by debbugs.gnu.org; 28 May 2014 00:48:04 +0000 Original-Received: from localhost ([127.0.0.1]:33827 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WpS2G-00064w-8M for submit@debbugs.gnu.org; Tue, 27 May 2014 20:48:04 -0400 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:33300) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WpS2C-00064N-Ao for 17561@debbugs.gnu.org; Tue, 27 May 2014 20:48:01 -0400 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id 36EE6A60010; Tue, 27 May 2014 17:47:54 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id L4a7+0+SozMy; Tue, 27 May 2014 17:47:45 -0700 (PDT) Original-Received: from [192.168.1.9] (pool-108-0-233-62.lsanca.fios.verizon.net [108.0.233.62]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id 915CB39E8011; Tue, 27 May 2014 17:47:45 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 In-Reply-To: <20140528001641.190b7ada@forcix.jorgenschaefer.de> 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:89591 Archived-At: Jorgen Schaefer wrote: > No output. Ouch. It sounds like we may be barking up the wrong tree with the assumption that there is a kernel bug with vfork, then. It could be that it's just an strace bug. I'm still suspicious of the interaction between pthread_sigmask and vfork, though. What happens if you do the following shell session, where "$" is the shell prompt and "(gdb)" is the GDB prompt? $ grep -i pthread src/config.h $ ldd src/bootstrap-emacs | grep -i pthread $ gdb src/bootstrap-emacs (gdb) disas rpl_pthread_sigmask (gdb) disas pthread_sigmask (gdb) disas rpl_vfork (gdb) disas vfork (gdb) disas rpl_fork (gdb) disas fork