X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-2.5 required=5.0 tests=AWL,BAYES_00,SPF_PASS X-Spam-Check-By: sourceware.org Message-ID: <4B083158.7040801@gmail.com> Date: Sat, 21 Nov 2009 18:28:40 +0000 From: Dave Korn User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) MIME-Version: 1.0 To: Dave Korn CC: cygwin AT cygwin DOT com Subject: Re: Use of Dual Core causes random failures building OpenJDK References: <4B061709 DOT 2040507 AT cygwin DOT com> <20091120112052 DOT GT29173 AT calimero DOT vinschen DOT de> <20091120143237 DOT GD18289 AT ednor DOT casa DOT cgf DOT cx> <20091120144958 DOT GW29173 AT calimero DOT vinschen DOT de> <20091120184906 DOT GA27241 AT ednor DOT casa DOT cgf DOT cx> <20091121121218 DOT GZ29173 AT calimero DOT vinschen DOT de> <20091121173625 DOT GB9003 AT ednor DOT casa DOT cgf DOT cx> <4B083047 DOT 8050101 AT gmail DOT com> In-Reply-To: <4B083047.8050101@gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: 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 Dave Korn wrote: > If they aren't from the same > process, they cannot be updating the same copy of the environment, since each > process has its own http://msdn.microsoft.com/en-us/library/ms682653(VS.85).aspx MSDN reference: hopefully this should clear up the details about how environment blocks behave. Note particularly that changes are never propagated back *up* to the global system environment; you have to write to the registry to change them, and that is indeed properly serialized. cheers, DaveK -- 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