From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2698 invoked by alias); 23 Jan 2013 03:20:46 -0000 Received: (qmail 2680 invoked by uid 22791); 23 Jan 2013 03:20:43 -0000 X-SWARE-Spam-Status: No, hits=-4.8 required=5.0 tests=AWL,BAYES_00,KHOP_RCVD_UNTRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_NO,RCVD_IN_HOSTKARMA_W,RCVD_IN_HOSTKARMA_WL,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org Received: from co1ehsobe002.messaging.microsoft.com (HELO co1outboundpool.messaging.microsoft.com) (216.32.180.185) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 23 Jan 2013 03:20:37 +0000 Received: from mail195-co1-R.bigfish.com (10.243.78.202) by CO1EHSOBE024.bigfish.com (10.243.66.87) with Microsoft SMTP Server id 14.1.225.23; Wed, 23 Jan 2013 03:20:32 +0000 Received: from mail195-co1 (localhost [127.0.0.1]) by mail195-co1-R.bigfish.com (Postfix) with ESMTP id 238EBCC00AA for ; Wed, 23 Jan 2013 03:20:32 +0000 (UTC) X-Forefront-Antispam-Report: CIP:132.245.1.149;KIP:(null);UIP:(null);IPV:NLI;H:BLUPRD0512HT003.namprd05.prod.outlook.com;RD:none;EFVD:NLI X-SpamScore: -2 X-BigFish: PS-2(zzbb2dI98dI9371Ic1dMzz1ee6h1de0h1202h1e76h1d1ah1d2ahzzb412mz32i2a8h668h839h947hd25he5bhf0ah1288h12a5h12a9h12bdh137ah13b6h1441h1504h1537h153bh162dh1631h1758h1765h18e1h1155h) Received: from mail195-co1 (localhost.localdomain [127.0.0.1]) by mail195-co1 (MessageSwitch) id 1358911230248336_25623; Wed, 23 Jan 2013 03:20:30 +0000 (UTC) Received: from CO1EHSMHS016.bigfish.com (unknown [10.243.78.199]) by mail195-co1.bigfish.com (Postfix) with ESMTP id 3935AA80081 for ; Wed, 23 Jan 2013 03:20:30 +0000 (UTC) Received: from BLUPRD0512HT003.namprd05.prod.outlook.com (132.245.1.149) by CO1EHSMHS016.bigfish.com (10.243.66.26) with Microsoft SMTP Server (TLS) id 14.1.225.23; Wed, 23 Jan 2013 03:20:30 +0000 Received: from BY2PRD0310HT005.namprd03.prod.outlook.com (157.56.236.5) by pod51010.outlook.com (10.255.215.164) with Microsoft SMTP Server (TLS) id 14.16.257.4; Wed, 23 Jan 2013 03:20:28 +0000 Message-ID: <50FF56F4.8090007@coverity.com> Date: Wed, 23 Jan 2013 03:20:00 -0000 From: Tom Honermann User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: Subject: Re: Intermittent failures with ctrl-c References: <20130116020420.GA13284@ednor.casa.cgf.cx> <50F6D757.3000005@coverity.com> <50F6DB0F.2020602@gmail.com> <50F6E695.20302@coverity.com> <50F6F69F.3040000@coverity.com> <20130116185908.GA17801@ednor.casa.cgf.cx> <50F70B27.8000904@coverity.com> <20130116222305.GA24529@ednor.casa.cgf.cx> <50F9AC57.5020309@coverity.com> <20130119055833.GA23653@ednor.casa.cgf.cx> <50FC6AF2.7070501@coverity.com> In-Reply-To: <50FC6AF2.7070501@coverity.com> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-OriginatorOrg: coverity.com X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com X-SW-Source: 2013-01/txt/msg00321.txt.bz2 On 01/20/2013 05:08 PM, Tom Honermann wrote: > However, I was still able to reproduce another case. As before, one of > the processes is being left running when the rest are terminated. The > "abandoned" process appears to be in a live-lock state with two threads > (threads 1 and 2) running at 100%. Of particular interest is that each > time I press ctrl-c in the cmd.exe console this process was spawned > from, a new thread appears in the process even though this program is no > longer a foreground process and all other Cygwin processes have > terminated. The new threads never exit. I noticed that more changes were checked in that looked like they might address this, so I tested again with the latest snapshot (20130123). I wasn't able to reproduce any of the symptoms I previously reported. Yay! However, just as I was about to give up testing, I hit one more new issue. One of the ctrl-c events sent bash into what appeared to be an infinite loop emitting error messages like these: 11408974 [unknown (0x144C)] bash 1752 exception::handle: Error while dumping state (probably corrupted stack) 11411584 [unknown (0x144C)] bash 1752 exception::handle: Error while dumping state (probably corrupted stack) While this was going on, hitting ctrl-c had no discernible effect. I resorted to killing the process via task manager. This only occurred once, I wasn't able to get it to happen again. Tom. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple