X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-1.1 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,TW_RW,TW_WX X-Spam-Check-By: sourceware.org X-Yahoo-SMTP: Uu383n6swBCEN1G9up0WSnxbvN8fCPmk Message-ID: <4D27C896.30202@cygwin.com> Date: Fri, 07 Jan 2011 21:14:46 -0500 From: "Larry Hall \(Cygwin\)" Reply-To: cygwin AT cygwin DOT com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.21) Gecko/20090320 Remi/2.0.0.21-1.fc8.remi Lightning/0.9 Thunderbird/2.0.0.21 Mnenhy/0.7.5.0 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: Strange fstatat / stat behavour on directories causing tar "file changed as we read it" error References: <3501944D149644D394474781054F5E98 AT multiplay DOT co DOT uk> <4D2783A3 DOT 5000008 AT redhat DOT com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed 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 On 1/7/2011 9:00 PM, Steven Hartland wrote: > ----- Original Message ----- From: "Eric Blake" > On 01/07/2011 11:21 AM, Steven Hartland wrote: >> What file system is this on? Someone else reported the same behavior >> for "Samba share on QNX through Virtual PC." - if the problem is limited >> to just a subset of (known-buggy) file systems, it would be nicer to >> limit the workaround to just those file systems (and have st_size always >> return 0 for directories from those systems). > > FS was just NTFS, at first we thought it might be being caused by compression > being enabled on the files / directories but we confirmed the behavour > on an machine with uncompressed volumes as well. > >>> Is there some "meta data" caching going on in cygwin or >>> Windows which causes this very strange behaviour? >> Giving us more details about your filesystem would help us answer that >> question. > > Just NTFS I'm afraid nothing special. > > You can see the behaviour with ls -l as well, as you would expect. > > A simpler, which may help is:- > ls -l > drwxr-xr-x 1 test test 0 Oct 20 14:09 testdir > find testdir > /dev/null # lots of files > ls -l > drwxr-xr-x 1 test test 8192 Oct 20 14:09 testdir > > uname -a > CYGWIN_NT-6.0-WOW64 hern4 1.7.1(0.218/5/3) 2009-12-07 11:48 i686 Cygwin ^^^^^ Did you try with the current version of the cygwin package? I tried your test on W7 uses the 1.7.7 and had no problem. It would be interesting to know if what you're seeing is and old bug or possibly W2K8-specific. -- Larry _____________________________________________________________________ A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting annoying in email? -- 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