From owner-freebsd-fs@FreeBSD.ORG Sat Feb 19 09:57:30 2011 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 719E81065673 for ; Sat, 19 Feb 2011 09:57:30 +0000 (UTC) (envelope-from gljennjohn@googlemail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id F3FE58FC1B for ; Sat, 19 Feb 2011 09:57:29 +0000 (UTC) Received: by fxm19 with SMTP id 19so1168451fxm.13 for ; Sat, 19 Feb 2011 01:57:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:date:from:to:cc:subject:message-id:in-reply-to :references:reply-to:x-mailer:mime-version:content-type :content-transfer-encoding; bh=e/h/gwa9YvQ4660nXgBK19eH7B8fuMy2Inx1uFMdns0=; b=hmg9qcTwCZ2L1Gq8ZpM5uAN93AVTY5bu2/FTdi72G9fBLsFQB2EqY0N9pYm84FH5ar A51titu96vMEQe1SSBorVAH5YO062pNmO/LchLZ3chF97ZYRS3OwPqdgrsCkRHl+HWCv VTUPFstDd/XaEmRWiiRWFz96nwvKFZfPZMY6s= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=date:from:to:cc:subject:message-id:in-reply-to:references:reply-to :x-mailer:mime-version:content-type:content-transfer-encoding; b=qH1HH7mI3enSydQ4aDEKBxVIOKQUx2XEz9PRqjQMBznYxrzfpFVX0y49x0TQ/h3eGk uVVoo3zI/Jmx9+ZFXTe9l7cq0eg/j3cVtaKOeri1BW6z5yJ/XeHI54tMDpac1i9t3FcO OHO0qj8KSGJCkKo5Pec1CAxupIcZ6niA1DEDI= Received: by 10.223.86.13 with SMTP id q13mr2283717fal.53.1298109396853; Sat, 19 Feb 2011 01:56:36 -0800 (PST) Received: from ernst.jennejohn.org (p578E384B.dip.t-dialin.net [87.142.56.75]) by mx.google.com with ESMTPS id a2sm224412faw.22.2011.02.19.01.56.35 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 19 Feb 2011 01:56:35 -0800 (PST) Date: Sat, 19 Feb 2011 10:56:34 +0100 From: Gary Jennejohn To: dave jones Message-ID: <20110219105634.1c5e4402@ernst.jennejohn.org> In-Reply-To: References: X-Mailer: Claws Mail 3.7.8 (GTK+ 2.18.7; amd64-portbld-freebsd9.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org Subject: Re: msdosfs kernel panic with a broken usb flash drive X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: gljennjohn@googlemail.com List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Feb 2011 09:57:30 -0000 On Sat, 19 Feb 2011 12:42:48 +0800 dave jones wrote: > Recently I have two broken USB thumb drives. I tried to mount /dev/da0s1 > by using mount_msdosfs /dev/da0s1 /mnt, and I got the kernel panic. > I tried another broken usb drive, the result is the same, kernel panic. > I also tried it on Linux using "mount -t /dev/sdb1 /mnt", no panic. > > Does it make sense that mounting broken USB drives would cause the > kernel panic? > Any idea how to solve this issue? thank you. > Without back trace from ddb or a kernel crash dump it would a little difficult for anyone to provide an intelligent answer. -- Gary Jennejohn