X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=0.7 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,KAM_THEBAT,KHOP_THREADED,SPF_SOFTFAIL X-Spam-Check-By: sourceware.org Date: Fri, 23 Nov 2012 19:08:57 +0400 From: Andrey Repin Reply-To: Andrey Repin Message-ID: <269536431.20121123190857@mtu-net.ru> To: Christopher Faylor Subject: Re: git fork failure on pull with a workaround (hopefully a clue for a fix) In-Reply-To: <20121123134628.GA32195@ednor.casa.cgf.cx> References: <509AB02F DOT 1000300 AT kitware DOT com> <509AC4E0 DOT 2080709 AT bopp DOT net> <509BC18E DOT 1050905 AT kitware DOT com> <20121123114127 DOT GO17347 AT calimero DOT vinschen DOT de> <1429797465 DOT 20121123163258 AT mtu-net DOT ru> <20121123131123 DOT GS17347 AT calimero DOT vinschen DOT de> <20121123134628 DOT GA32195 AT ednor DOT casa DOT cgf DOT cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Greetings, Christopher Faylor! >>> > I *think* this is an issue between Windows and Cygwin for which there's >>> > no easy solution. The memory layout created by Windows can move the >>> > main stack address in a child process depending on the size of the >>> > environment. >>> >>> > I observed this myself, but didn't find a way to fix it. Maybe it's >>> > related to the fact that Cygwin cleans out the Windows environment to a >>> > bare minimum when forking. This obviously results in a changed env. >>> >>> Would it be meaningful to instrument this cause for easier tracking? >> >>I don't understand. > Maybe it's an observation that we should somehow detect this in the > forked child and give a clearer error message? Something like that, if it is possible without much overhead or performance loss. -- WBR, Andrey Repin (anrdaemon AT freemail DOT ru) 23.11.2012, <19:08> Sorry for my terrible english... -- 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