From owner-freebsd-usb@FreeBSD.ORG Mon Mar 31 10:00:07 2008 Return-Path: Delivered-To: freebsd-usb@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 14DFE106566C for ; Mon, 31 Mar 2008 10:00:07 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 040D18FC20 for ; Mon, 31 Mar 2008 10:00:07 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id m2VA06kQ029409 for ; Mon, 31 Mar 2008 10:00:06 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.2/8.14.1/Submit) id m2VA06A4029408; Mon, 31 Mar 2008 10:00:06 GMT (envelope-from gnats) Resent-Date: Mon, 31 Mar 2008 10:00:06 GMT Resent-Message-Id: <200803311000.m2VA06A4029408@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-usb@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Vince Hoffman Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D2399106564A for ; Mon, 31 Mar 2008 10:00:00 +0000 (UTC) (envelope-from jhary@unsane.co.uk) Received: from unsane.co.uk (unknown [IPv6:2001:470:1f08:110::2]) by mx1.freebsd.org (Postfix) with ESMTP id 6CE1C8FC23 for ; Mon, 31 Mar 2008 10:00:00 +0000 (UTC) (envelope-from jhary@unsane.co.uk) Received: from unsane.co.uk (localhost [127.0.0.1]) by unsane.co.uk (8.14.0/8.14.0) with ESMTP id m2V9xqNW061805 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 31 Mar 2008 10:59:52 +0100 (BST) (envelope-from jhary@unsane.co.uk) Received: (from jhary@localhost) by unsane.co.uk (8.14.0/8.14.0/Submit) id m2V9xqxu061804; Mon, 31 Mar 2008 10:59:52 +0100 (BST) (envelope-from jhary) Message-Id: <200803310959.m2V9xqxu061804@unsane.co.uk> Date: Mon, 31 Mar 2008 10:59:52 +0100 (BST) From: Vince Hoffman To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: usb/122287: Removal of usb serial Device with session (eg tip) attached panics system X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vince Hoffman List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Mar 2008 10:00:07 -0000 >Number: 122287 >Category: usb >Synopsis: Removal of usb serial Device with session (eg tip) attached panics system >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-usb >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Mar 31 10:00:06 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Vince Hoffman >Release: FreeBSD 7.0-STABLE #52 >Organization: none >Environment: System: FreeBSD prawn.unsane.co.uk 7.0-STABLE FreeBSD 7.0-STABLE #52: Tue Mar 25 13:45:50 GMT 2008 toor@prawn.unsane.co.uk:/usr/local/obj/usr/src/sys/PRAWN7ULE i386 >Description: removing a USB device that has an open session (for example tip) will panic the kernel, this is 100% reproducable for me. {root@prawn}#more info.14 Dump header from device /dev/ad0s3b Architecture: i386 Architecture Version: 2 Dump Length: 154411008B (147 MB) Blocksize: 512 Dumptime: Mon Mar 31 09:25:54 2008 Hostname: prawn.unsane.co.uk Magic: FreeBSD Kernel Dump Version String: FreeBSD 7.0-STABLE #52: Tue Mar 25 13:45:50 GMT 2008 toor@prawn.unsane.co.uk:/usr/local/obj/usr/src/sys/PRAWN7ULE Panic String: page fault Dump Parity: 1302845723 Bounds: 14 Dump Status: good I'm happy to build a kernel with debug symbols if needed but it should be easy to reproduce. I have only tried this with a UFTDI device. I have a uark device at home I can try it with if needed. >How-To-Repeat: With the following entry in /etc/remote usb0:dv=/dev/ttyU0:br#9600:pa=none: tip usb0 then unplug the usb serial adapter. >Fix: unknown as yet >Release-Note: >Audit-Trail: >Unformatted: