From owner-freebsd-bugs@FreeBSD.ORG Sun Mar 11 10:25:53 2007 Return-Path: X-Original-To: freebsd-bugs@freebsd.org Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 5C37C16A400; Sun, 11 Mar 2007 10:25:53 +0000 (UTC) (envelope-from bde@zeta.org.au) Received: from mailout1.pacific.net.au (mailout1-3.pacific.net.au [61.8.2.210]) by mx1.freebsd.org (Postfix) with ESMTP id 20EAD13C4B7; Sun, 11 Mar 2007 10:25:53 +0000 (UTC) (envelope-from bde@zeta.org.au) Received: from mailproxy2.pacific.net.au (mailproxy2.pacific.net.au [61.8.2.163]) by mailout1.pacific.net.au (Postfix) with ESMTP id C803E61FE2C; Sun, 11 Mar 2007 21:25:51 +1100 (EST) Received: from besplex.bde.org (katana.zip.com.au [61.8.7.246]) by mailproxy2.pacific.net.au (Postfix) with ESMTP id DE1542741A; Sun, 11 Mar 2007 21:25:50 +1100 (EST) Date: Sun, 11 Mar 2007 21:25:49 +1100 (EST) From: Bruce Evans X-X-Sender: bde@besplex.bde.org To: Kris Kennaway In-Reply-To: <20070311092919.GC60235@xor.obsecurity.org> Message-ID: <20070311204620.G13396@besplex.bde.org> References: <200703110922.l2B9M5XT015946@freefall.freebsd.org> <20070311092919.GC60235@xor.obsecurity.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Remko Lodder , freebsd-bugs@freebsd.org Subject: Re: kern/77234: [udf] [patch] corrupted data is read from UDF filesystem if read starts at non-aligned offset X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Mar 2007 10:25:53 -0000 On Sun, 11 Mar 2007, Kris Kennaway wrote: > FYI I dunno about this particular problem but UDF is indeed full of > bugs. I tried to get Scott (original author) to look at some problems > last year but he didnt get back to it. I tried the same (with patches similar to the ones in this PR) the year before last. Then I lost interest in udf since it works worse than cd9660 for my only application of backing up ffs file systems a file at a time, and I don't have time to fix this. (Sequential media like DVDs needs large non-vnode-based read-ahead unless the drive does it, but FreeBSD only does vnode-based read ahead. This loses especially for metadata. cd9660 metadata is smaller and more packed than udf metadata, so cd9660 loses less than udf from this.) Bruce