From owner-cvs-all Sat Oct 13 8: 4: 6 2001 Delivered-To: cvs-all@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id B235337B40F; Sat, 13 Oct 2001 07:56:00 -0700 (PDT) Received: by flood.ping.uio.no (Postfix, from userid 2602) id 8C52014C2E; Sat, 13 Oct 2001 16:55:56 +0200 (CEST) X-URL: http://www.ofug.org/~des/ X-Disclaimer: The views expressed in this message do not necessarily coincide with those of any organisation or company with which I am or have been affiliated. To: Matt Dillon Cc: Mike Silbersack , , Subject: Re: cvs commit: src/sys/vm vnode_pager.c References: <20011012145142.L29945-100000@achilles.silby.com> <200110122026.f9CKQMS35969@earth.backplane.com> <200110130005.f9D05Fb37190@earth.backplane.com> From: Dag-Erling Smorgrav Date: 13 Oct 2001 16:55:55 +0200 In-Reply-To: <200110130005.f9D05Fb37190@earth.backplane.com> Message-ID: Lines: 15 User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.7 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Matt Dillon writes: > Hmm. in re-reading this I think I have to clarify something... > when I said 'before the dirty buffer is flushed' I meant that if you > write() a small file and then mmap/access it before the buf_daemon > gets around to flushing the buffer that was diritied by the write, then > the mmap/access will put the page into the weird state. The same thing > can occur if you mmap() a file shared+RW and modify the fragment via > the mmap. Hmm, cvsup doesn't seem to use mmap for I/O. What do you mean by "access" in this context? DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message