From owner-freebsd-hackers Sat Apr 1 05:36:00 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id FAA11287 for hackers-outgoing; Sat, 1 Apr 1995 05:36:00 -0800 Received: from Root.COM (implode.Root.COM [198.145.90.1]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id FAA11277; Sat, 1 Apr 1995 05:35:56 -0800 Received: from corbin.Root.COM (corbin.Root.COM [198.145.90.18]) by Root.COM (8.6.8/8.6.5) with ESMTP id FAA19251; Sat, 1 Apr 1995 05:35:36 -0800 Received: from localhost (localhost [127.0.0.1]) by corbin.Root.COM (8.6.11/8.6.5) with SMTP id FAA01579; Sat, 1 Apr 1995 05:35:35 -0800 Message-Id: <199504011335.FAA01579@corbin.Root.COM> X-Authentication-Warning: corbin.Root.COM: Host localhost didn't use HELO protocol To: Bruce Evans cc: jkh@freefall.cdrom.com, bugs@ns1.win.net, gary@palmer.demon.co.uk, hackers@FreeBSD.org, tom@haven.uniserve.com Subject: Re: 4 gig st15150n disk setups In-reply-to: Your message of "Sat, 01 Apr 95 23:19:59 +1000." <199504011319.XAA10905@godzilla.zeta.org.au> From: David Greenman Reply-To: davidg@Root.COM Date: Sat, 01 Apr 1995 05:35:33 -0800 Sender: hackers-owner@FreeBSD.org Precedence: bulk >>> Some but not all bugs involving >=2GB file systems have been fixed. E.g., >>> the clustering code silently botches single files >=2GB, and mmap() > >>Are we talking file sizes or file system sizes? > >>> silently botches offsets >=4GB. I don't know of any problem for normally >>> sized files but wouldn't trust file systems >=2GB. > >>I've been running on one 4GB and on 8.6GB pretty _heavily_ with no problems >>whatsoever for a few weeks now! > >Both. I don't trust any software that doesn't check for overflow. Just to clarify what Bruce is saying: If someone were to create a file that was >2GB, BAD things would happen. The system currently considers any blocks >2GB and <4GB as file metadata (for containing indirect blocks). Not only would this certainly cause the machine to panic, it would almost certainly cause random filesystem corruption. I'll try to fix as many of these potential problems as possible before the release. -DG