Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm 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 Date: Wed, 14 Jul 2004 15:55:38 +0200 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: can not create a multi-volume archive using tar Message-ID: <20040714135538.GT1389@cygbert.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <20040709194419.GS1389@cygbert.vinschen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2i On Jul 10 10:36, a1111111 wrote: > Corinna Vinschen wrote: > > > > >Did you try the -M or --multi-volume option of tar? > > > >Corinna > > > > Yes, I did. > > I even tried to force "tape size" to number below the size of floppy > disk -- no success. > > I have experience with C, so I think I could find a problem, but I think > that development could do it quicker. Anyway if you point me where to > start, I can try. I found the culprit. It was age old code in Cygwin which should speed up reading and writing on raw devices by using buffering. This works nicely for reading, but it doesn't work quite as well for writing. I've removed buffered writing for raw devices entirely. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Co-Project Leader mailto:cygwin@cygwin.com Red Hat, Inc. -- 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/