From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 120003 invoked by alias); 16 Oct 2015 15:16:22 -0000 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 Received: (qmail 119982 invoked by uid 89); 16 Oct 2015 15:16:21 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.6 required=5.0 tests=BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-yk0-f173.google.com Received: from mail-yk0-f173.google.com (HELO mail-yk0-f173.google.com) (209.85.160.173) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Fri, 16 Oct 2015 15:16:19 +0000 Received: by yknn9 with SMTP id n9so36843797ykn.0 for ; Fri, 16 Oct 2015 08:16:17 -0700 (PDT) X-Received: by 10.129.72.147 with SMTP id v141mr10542881ywa.70.1445008577760; Fri, 16 Oct 2015 08:16:17 -0700 (PDT) Received: from [192.168.1.4] (64.20.154.226.dyn-e-pool27.pool.hargray.net. [64.20.154.226]) by smtp.gmail.com with ESMTPSA id f133sm15219576ywa.27.2015.10.16.08.16.17 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Oct 2015 08:16:17 -0700 (PDT) Subject: Re: How to correctly rebase? To: cygwin@cygwin.com References: <22046.25592.311399.765933@woitok.gmail.com> <8925F252-F479-4990-B568-1EC612DF39A5@etr-usa.com> <22047.42793.36600.773496@woitok.gmail.com> <41C9E795-AEEC-4378-8548-44DAF7DB98E7@etr-usa.com> <5620164E.1010508@cornell.edu> <22048.47638.206600.117271@woitok.gmail.com> <5620F460.7020605@cornell.edu> <562112CE.4040407@cornell.edu> From: cyg Simple X-Enigmail-Draft-Status: N1110 Message-ID: <562114AF.7040704@gmail.com> Date: Fri, 16 Oct 2015 15:16:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <562112CE.4040407@cornell.edu> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-IsSubscribed: yes X-SW-Source: 2015-10/txt/msg00228.txt.bz2 On 10/16/2015 11:07 AM, Ken Brown wrote: > On 10/16/2015 8:58 AM, Ken Brown wrote: >> On 10/16/2015 4:49 AM, Dr Rainer Woitok wrote: >>> Ken, >>> >>> On Thursday, 2015-10-15 17:10:38 -0400, you wrote: >>> >>>> ... >>>> Another possibility is that those DLLs were in use. Rainer, did you >>>> make sure >>>> that no Cygwin processes were running other than dash? >>> >>> Well, at least I tried to. I ran "/bin/ps -ef" and only saw one "ps" >>> and one "ash" process. >>> >>>> ... >>>> No, it's because rebase is called with the -s option, which implies >>>> the -d >>>> option, which means that it starts at 0x70000000 and works down. >>> >>> Thanks for the explanation. This had escaped me. >>> >>>> >>>> Rainer, you >>>> can run 'rebase -is' to see the full list of base addresses. >>> >>> I did, and I think this list os more or less the same as the output from >>> "rebaslst". But I'll compare more thoroughly later. What caught my eye >>> though is that both lists seemed sorted more or less with respect to de- >>> scending file names, except for >>> >>> /usr/bin/cygLLVM-3.1.dll base 0x5ca90000 size >>> 0x0128a000 >>> /home/Rainer/repo/netcdf/bin/cygnetcdf-7.dll base 0x5dd20000 size >>> 0x032a0000 >>> /usr/bin/cygORBitCosNaming-2-0.dll base 0x61580000 size >>> 0x0000c000 >>> >>> All my other local DLLs appear at the very end of these lists. Is this >>> just the way "rebase" works internally or does this indicate a problem? >> >> I don't know off the top of my head, but I wouldn't worry about this. >>> >>> Talking about problems: Python still does not work (and perhaps other >>> stuff I just haven't yet tried). Should I try re-installing Python? >>> >>> But I would be more at rest if this all would be sort of explainable. >> >> As Warren and Achim have both suggested, you may just have too many >> DLLs for >> 32-bit Cygwin. Can you uninstall some unneeded packages? Or switch >> to 64-bit >> Cygwin? >> >> By the way, I don't think you have yet attached cygcheck output as >> requested in >> http://cygwin.com/problems.html: "Run cygcheck -s -v -r > >> cygcheck.out and >> include that file as an attachment in your report. Please do not >> compress or >> otherwise encode the output. Just attach it as a straight text file >> so that it >> can be easily viewed." Maybe someone will spot something. > > I have one other suggestion: If you rebase because of a fork failure, > reboot before retrying the application that failed. I just had the > following experience: > > I was running emacs on my 32-bit Cygwin installation and got a fork > failure involving /usr/bin/cygMagickCore-6.Q16-2.dll. Windows had > loaded this DLL at a very low address. I did a full rebase and > restarted emacs, but that DLL was still loaded at a low address, even > though rebasing had put the base address at a very reasonable > 0x6e550000. [You can see where a DLL is loaded in a process's address > space by examining the file /proc//maps.] I then rebooted, > restarted emacs, and verified that the DLL was now loaded at 0x6e550000, > as expected. > > I've seen this happen many times. I don't know the explanation, but my > guess is that Windows does some caching that causes it to try to load a > given DLL at the same base address as it used the last time that DLL was > loaded. Rebooting clears the cache. Can someone who understands this > stuff confirm my guess or provide a better explanation? Could it be something similar to http://windowsitpro.com/systems-management/how-can-i-stop-windows-caching-dll-file-after-i-close-program-was-accessing-it? -- cyg Simple -- 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