From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ken Brown Newsgroups: gmane.emacs.bugs Subject: bug#14569: 24.3.50; bootstrap fails on Cygwin Date: Sun, 23 Jun 2013 11:56:13 -0400 Message-ID: <51C71A9D.1040302@cornell.edu> References: <51B78346.3050600@cornell.edu> <2E06A322-530C-4AA2-9282-6D2E48B1D194@swipnet.se> <51B8BEFE.6070309@cs.ucla.edu> <51B8D5ED.1010407@alice.it> <51BA03CA.4080804@cs.ucla.edu> <51BB56CB.7030209@cs.ucla.edu> <20130614180359.GA5295@ednor.casa.cgf.cx> <51BB7B82.4010204@cornell.edu> <83obb7vorg.fsf@gnu.org> <328A1CCF-A8DB-44F9-A6CF-BEF0FFBC5C93@swipnet.se> <83bo77ven6.fsf@gnu.org> <51BE6CDD.7090108@cornell.edu> <1ED4E1BC-6DEC-4668-8FBD-6EC5BCFA10DA@swipnet.se> <834ncwu67v.fsf@gnu.org> <51BF6E65.6030102@cornell.edu> <83k3lrs9dc.fsf@gnu.org> <51C21362.9090209@cornell.edu> <83ehbxpkix.fsf@gnu.org> <51C27054.5090209@cornell.edu> <83a9mkpyl3.fsf@gnu.org> <51C5BF21.5020801@cornell.edu> <51C5F52D.1000404@cs.ucla.edu> 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 1372003092 12308 80.91.229.3 (23 Jun 2013 15:58:12 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 23 Jun 2013 15:58:12 +0000 (UTC) Cc: 14569@debbugs.gnu.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jun 23 17:58:11 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 1Uqmg6-00011i-S3 for geb-bug-gnu-emacs@m.gmane.org; Sun, 23 Jun 2013 17:58:10 +0200 Original-Received: from localhost ([::1]:54849 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uqmg6-00021v-Jn for geb-bug-gnu-emacs@m.gmane.org; Sun, 23 Jun 2013 11:58:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57156) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uqmg2-00021f-Uk for bug-gnu-emacs@gnu.org; Sun, 23 Jun 2013 11:58:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uqmg0-0003r9-3t for bug-gnu-emacs@gnu.org; Sun, 23 Jun 2013 11:58:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:42251) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uqmg0-0003r4-0L for bug-gnu-emacs@gnu.org; Sun, 23 Jun 2013 11:58:04 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Uqmfy-0005cJ-8p for bug-gnu-emacs@gnu.org; Sun, 23 Jun 2013 11:58:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Ken Brown Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 23 Jun 2013 15:58:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 14569 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 14569-submit@debbugs.gnu.org id=B14569.137200302921499 (code B ref 14569); Sun, 23 Jun 2013 15:58:02 +0000 Original-Received: (at 14569) by debbugs.gnu.org; 23 Jun 2013 15:57:09 +0000 Original-Received: from localhost ([127.0.0.1]:36567 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Uqmf6-0005ah-Ul for submit@debbugs.gnu.org; Sun, 23 Jun 2013 11:57:09 -0400 Original-Received: from limestone8.mail.cornell.edu ([128.253.83.168]:55046) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Uqmf4-0005aC-5m for 14569@debbugs.gnu.org; Sun, 23 Jun 2013 11:57:07 -0400 X-CornellRouted: This message has been Routed already. Original-Received: from authusersmtp.mail.cornell.edu (granite4.serverfarm.cornell.edu [10.16.197.9]) by limestone8.mail.cornell.edu (8.14.4/8.14.4) with ESMTP id r5NFuq2r008402; Sun, 23 Jun 2013 11:56:52 -0400 (EDT) Original-Received: from [192.168.1.6] (cpe-67-249-194-47.twcny.res.rr.com [67.249.194.47]) (authenticated bits=0) by authusersmtp.mail.cornell.edu (8.14.4/8.12.10) with ESMTP id r5NFuoSg002211 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sun, 23 Jun 2013 11:56:51 -0400 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 In-Reply-To: <51C5F52D.1000404@cs.ucla.edu> 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:75473 Archived-At: On 6/22/2013 3:04 PM, Paul Eggert wrote: > On 06/22/13 08:13, Ken Brown wrote: >> Jan or Paul, can you help? > > The second trace suggests there's a race condition bug in Cygwin glib, > which I've tried to work around in trunk bzr 113138. Does that help? > (At least, does it make Emacs crash more reliably?....) As Angelo said, the answer to both questions is "No". But there's actually a big difference. First, the 'abort' breakpoint is never hit. Second, there are no more SEGVs reported in glib. There are lots of SEGVs in _malloc_internal_nolock, and some further SEGVs that gdb can't pinpoint. I think all of the crashes in _malloc_internal_nolock are coming when it's called by special_realloc. Maybe the latter needs to be calling _malloc_internal instead of _malloc_inernal_nolock. I don't have any more time right now, but I'll try that later. Ken