From owner-freebsd-bugs@FreeBSD.ORG Sun Mar 19 02:10:11 2006 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BED9A16A400 for ; Sun, 19 Mar 2006 02:10:11 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2DDBC43D46 for ; Sun, 19 Mar 2006 02:10:11 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id k2J2AASS034946 for ; Sun, 19 Mar 2006 02:10:11 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id k2J2AAdT034945; Sun, 19 Mar 2006 02:10:10 GMT (envelope-from gnats) Resent-Date: Sun, 19 Mar 2006 02:10:10 GMT Resent-Message-Id: <200603190210.k2J2AAdT034945@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Jason Harmening Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E457316A401 for ; Sun, 19 Mar 2006 02:08:02 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id B3D4043D45 for ; Sun, 19 Mar 2006 02:08:02 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.13.1/8.13.1) with ESMTP id k2J282cc062605 for ; Sun, 19 Mar 2006 02:08:02 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.13.1/8.13.1/Submit) id k2J282P8062604; Sun, 19 Mar 2006 02:08:02 GMT (envelope-from nobody) Message-Id: <200603190208.k2J282P8062604@www.freebsd.org> Date: Sun, 19 Mar 2006 02:08:02 GMT From: Jason Harmening To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.3 Cc: Subject: kern/94669: Panic from Failed Removable Media Mount X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Mar 2006 02:10:11 -0000 >Number: 94669 >Category: kern >Synopsis: Panic from Failed Removable Media Mount >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Mar 19 02:10:10 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Jason Harmening >Release: 6.1-BETA4 >Organization: >Environment: reeBSD CORONA.austin.rr.com 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #4: Sat Mar 18 18:40:52 CST 2006 root@:/usr/obj/usr/src/sys/CUSTOM_DBG amd64 >Description: Received the following kernel panic when trying to mount DVD-RAM: CORONA% mount /dev/acd0 /home/jason/dvdram g_vfs_done():acd0[READ(offset=114688, length=16384)]error = 5 panic: mount: lost mount cpuid = 0 KDB: stack backtrace: kdb_backtrace() at kdb_backtrace+0x37 panic() at panic+0x1d1 vfs_domount() at vfs_domount+0x9ae vfs_donmount() at vfs_donmount+0x400 kernel_mount() at kernel_mount+0x40 ffs_cmount() at ffs_cmount+0x7c mount() at mount+0x1e3 syscall() at syscall+0x3a4 Xfast_syscall() at Xfast_syscall+0xa8 --- syscall (21, FreeBSD ELF64, mount), rip = 0x80067e0dc, rsp = 0x7fffffffdc88, rbp = 0x7fffffffe748 --- Uptime: 1m34s Dumping 1023 MB (2 chunks) This may very well be a bad hardware/bad media issue. If so, the OS should at least handle failed removable media mounts in a more elegant way than just panicking. If not, it is a serious bug that should be fixed as soon as possible. System is 6.1-BETA4/amd64 SMP. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: