From owner-freebsd-current Wed Dec 2 23:58:49 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA14429 for freebsd-current-outgoing; Wed, 2 Dec 1998 23:58:49 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from root.com (root.com [198.145.90.17]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA14420 for ; Wed, 2 Dec 1998 23:58:46 -0800 (PST) (envelope-from root@root.com) Received: from root.com (localhost [127.0.0.1]) by root.com (8.8.8/8.8.5) with ESMTP id XAA17756; Wed, 2 Dec 1998 23:59:49 -0800 (PST) Message-Id: <199812030759.XAA17756@root.com> To: "Jordan K. Hubbard" cc: Steve Kargl , bford@uop.cs.uop.edu, freebsd-current@FreeBSD.ORG Subject: Re: panic: ffs_blkfree: bad size In-reply-to: Your message of "Wed, 02 Dec 1998 23:19:19 PST." <14136.912669559@zippy.cdrom.com> From: David Greenman Reply-To: dg@root.com Date: Wed, 02 Dec 1998 23:59:49 -0800 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >> sysctl -w vfs.ffs.doreallocblks=0 >> >> Is the correct response. > >Why isn't this currently the default if it's as pathological as you >say? Has anyone actually asked David this question? It would be >only courteous given that he's the author of this bug/feature. The feature is fairly important. Steve and one or two other people are the only ones seeing the problem after Kirk's fix was committed. Steve is the only person to report filesystem corruption caused by it. I'm not able to reproduce the panic, despite doing more than 20 "make world"s in an attempt to reproduce it. If we disable it by default then it will never get fixed because there will be no feedback from people who are still having problems with it. I WILL disable it prior to the 3.0.1 release if it isn't fixed by then, however. Meanwhile I'll look at adding something that will ensure that filesystem corruption isn't possible - I think this will amount to detecting the problem and panicing earlier. -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message