From owner-freebsd-hackers Sun Jan 7 02:51:36 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id CAA03395 for hackers-outgoing; Sun, 7 Jan 1996 02:51:36 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id CAA03387 for ; Sun, 7 Jan 1996 02:51:33 -0800 (PST) Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id LAA10516; Sun, 7 Jan 1996 11:51:16 +0100 Received: by sax.sax.de (8.6.11/8.6.12-s1) with UUCP id LAA22734; Sun, 7 Jan 1996 11:51:14 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.7.3/8.6.9) id LAA07666; Sun, 7 Jan 1996 11:46:31 +0100 (MET) From: J Wunsch Message-Id: <199601071046.LAA07666@uriah.heep.sax.de> Subject: Re: DOS File system fixes To: freebsd-hackers@freebsd.org (FreeBSD hackers) Date: Sun, 7 Jan 1996 11:46:30 +0100 (MET) Cc: root@synthcom.com Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199601070530.QAA24887@godzilla.zeta.org.au> from "Bruce Evans" at Jan 7, 96 04:30:00 pm X-Phone: +49-351-2012 669 X-Mailer: ELM [version 2.4 PL23] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-hackers@freebsd.org Precedence: bulk As Bruce Evans wrote: > > >What is currently broken in the DOS file system for FreeBSD? I see there's an > > Deadlocks are possible for file lookup (locking is too strong/wrong). > Locking in some other places is too weak. rename() sometimes > (deterministically) updates the wrong directory entries. I/O is > extremely inefficient, especially if the cluster size is small. There are several reports that enabling DOS f/s read/write can damage other file systems. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)