X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Fri, 10 Apr 2009 10:46:02 +0200 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: [1.7] deleting in-use directories Message-ID: <20090410084602.GM15443@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <20090409170228.GA5231@calimero.vinschen.de> <49DEBFEA.8030503@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49DEBFEA.8030503@gmail.com> User-Agent: Mutt/1.5.19 (2009-02-20) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Apr 10 04:41, Dave Korn wrote: > Corinna Vinschen wrote: > > On Apr 9 16:13, Eric Blake wrote: > >> The Autoconf testsuite is failing several tests on cygwin 1.7 that used to pass > >> on cygwin 1.5. I've traced it to the fact that 1.7 is trying to be smarter > >> about deleting in-use files and directories, but doesn't quite get things right. > > > > Incredible but true. It was an alignment problem with a local buffer > > in the function which moves the directory to the bin when a sharing > > violation occurs. This seems to be a new problem with gcc-4. As long > > as I built Cygwin with gcc-3, I never had this problem. > > -vvvv? What alignment does the buffer require? What did it end up getting > with gcc-4? Don't worry. It was my own little bug and gcc-4 just uncovered it. I created a temp buffer on the stack as an array of type BYTE, even though the data stored in the buffer requires a ULONG alignment. With gcc-3 this worked because the buffer was for some reason correcty aligned. gcc-4 apparently organizes the local vars differently so the buffer ended up on an unaligned address and the NT function returned status 0x8000002, STATUS_DATATYPE_MISALIGNMENT. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/