From owner-freebsd-questions@FreeBSD.ORG Thu Feb 26 00:58:54 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D26EC1065675 for ; Thu, 26 Feb 2009 00:58:54 +0000 (UTC) (envelope-from fbsd.questions@rachie.is-a-geek.net) Received: from mail.rachie.is-a-geek.net (rachie.is-a-geek.net [66.230.99.27]) by mx1.freebsd.org (Postfix) with ESMTP id A4B748FC08 for ; Thu, 26 Feb 2009 00:58:54 +0000 (UTC) (envelope-from fbsd.questions@rachie.is-a-geek.net) Received: from localhost (mail.lan.rachie.is-a-geek.net [192.168.2.101]) by mail.rachie.is-a-geek.net (Postfix) with ESMTP id 94CFAAFC1FF; Wed, 25 Feb 2009 15:58:53 -0900 (AKST) From: Mel To: freebsd-questions@freebsd.org Date: Wed, 25 Feb 2009 15:58:53 -0900 User-Agent: KMail/1.9.10 References: <49A5DD2A.5090200@web.de> In-Reply-To: <49A5DD2A.5090200@web.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200902251558.53379.fbsd.questions@rachie.is-a-geek.net> Cc: Marco Subject: Re: mounted usb devices crash X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Feb 2009 00:58:55 -0000 On Wednesday 25 February 2009 15:07:06 Marco wrote: > hello list, > > i ran into a lot of crashes because of problems with externally mounted > devices through usb. after successful mount, an ejecting of the device, > w/o unmounting it, ususally results in a freeze of the system, followed > by reboot. also with defect hardware, or cable problems this occurs. is > there a way to protect my running os from such behavior, any kind of > flag i could set? Not until usb-2. There's work in progress for this issue. OpenBSD solved it last year, by refactoring all the locking for mounts if I recall correctly. It's harder in FreeBSD. I doubt this will hit the 7.x tree, but it might happen. I looked for status on this project, can't seem to find it atm. -- Mel Problem with today's modular software: they start with the modules and never get to the software part.