From owner-freebsd-current@FreeBSD.ORG Wed Nov 16 08:19:21 2005 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E377716A41F for ; Wed, 16 Nov 2005 08:19:20 +0000 (GMT) (envelope-from pho@holm.cc) Received: from relay02.pair.com (relay02.pair.com [209.68.5.16]) by mx1.FreeBSD.org (Postfix) with SMTP id 583FE43D46 for ; Wed, 16 Nov 2005 08:19:20 +0000 (GMT) (envelope-from pho@holm.cc) Received: (qmail 40331 invoked from network); 16 Nov 2005 08:19:19 -0000 Received: from unknown (HELO peter.osted.lan) (unknown) by unknown with SMTP; 16 Nov 2005 08:19:19 -0000 X-pair-Authenticated: 80.161.118.233 Received: from peter.osted.lan (localhost.osted.lan [127.0.0.1]) by peter.osted.lan (8.13.1/8.13.1) with ESMTP id jAG8JIbD056888 for ; Wed, 16 Nov 2005 09:19:18 +0100 (CET) (envelope-from pho@peter.osted.lan) Received: (from pho@localhost) by peter.osted.lan (8.13.1/8.13.1/Submit) id jAG8JI0D056887 for current@freebsd.org; Wed, 16 Nov 2005 09:19:18 +0100 (CET) (envelope-from pho) Date: Wed, 16 Nov 2005 09:19:17 +0100 From: Peter Holm To: current@freebsd.org Message-ID: <20051116081917.GA56826@peter.osted.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i Cc: Subject: File system tests X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Nov 2005 08:19:21 -0000 In an effort to test how well the kernel handles corrupted file systems (UFS2), I have run a series of test where I flip random bits in a file system, run fsck and then mount it. This has uncovered a few panics: panic: mount: lost mount panic: vm_fault: fault on nofault entry, addr: dda79000 panic: getblk: size(536871936) > MAXBSIZE(65536) panic: wrong length 1088 for sectorsize 512 panic: kmem_malloc(1342181376): kmem_map too small: 11620352 total allocated http://people.freebsd.org/~pho/stress/log/fs01.html http://people.freebsd.org/~pho/stress/log/fs02.html http://people.freebsd.org/~pho/stress/log/fs03.html http://people.freebsd.org/~pho/stress/log/fs04.html http://people.freebsd.org/~pho/stress/log/fs05.html I'm still not sure if this a reasonable test scenario and if it's worth pursuing? -- Peter Holm