From owner-freebsd-bugs@FreeBSD.ORG Sun May 24 23:20:02 2009 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 01934106566B for ; Sun, 24 May 2009 23:20:02 +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 D05EE8FC0A for ; Sun, 24 May 2009 23:20:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n4ONK19H020234 for ; Sun, 24 May 2009 23:20:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n4ONK1dF020233; Sun, 24 May 2009 23:20:01 GMT (envelope-from gnats) Resent-Date: Sun, 24 May 2009 23:20:01 GMT Resent-Message-Id: <200905242320.n4ONK1dF020233@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, Andrzej Chabierski Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3295D1065670 for ; Sun, 24 May 2009 23:10:33 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id 202048FC1B for ; Sun, 24 May 2009 23:10:33 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id n4ONAWJT065478 for ; Sun, 24 May 2009 23:10:32 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id n4ONAWDW065471; Sun, 24 May 2009 23:10:32 GMT (envelope-from nobody) Message-Id: <200905242310.n4ONAWDW065471@www.freebsd.org> Date: Sun, 24 May 2009 23:10:32 GMT From: Andrzej Chabierski To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/134922: kernel panic when use fdisk on disk who been removed from gmirror 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, 24 May 2009 23:20:02 -0000 >Number: 134922 >Category: kern >Synopsis: kernel panic when use fdisk on disk who been removed from gmirror >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun May 24 23:20:01 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Andrzej Chabierski >Release: 7.2 >Organization: >Environment: FreeBSD bsdtest.outsider.pl 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Fri May 1 08:49:13 UTC 2009 root@walker.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 >Description: ~:>gmirror status Name Status Components mirror/gm0 COMPLETE ad4 ad6 ~:>gmirror remove -v gm0 ad6 Done. ~:>gmirror status Name Status Components mirror/gm0 COMPLETE ad4 ~:>fdisk -BI /dev/ad6 ******* Working on device /dev/ad6 ******* fdisk: Geom not found: "ad6" Now - one more time: --- ~:>fdisk -BI /dev/ad6 ******* Working on device /dev/ad6 ******* --- and I get kernel panic. On the console: --- GEOM_LABEL: Label ufsid/4a0aa286db37b22c removed. Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 01 fault virtual address = 0x14 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0788b33 stack pointer = 0x28:0xe571dc5c frame pointer = 0x28:0xe571dc90 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 2 (g_event) trap number = 12 panic: page fault cpuid = 1 Uptime: 20h32m28s Physical memory: 2035 MB Dumping 72 MB:ata2: FAILURE - oversized DMA transfer attempt 65536 > 32768 ad4: setting up DMA failed ** DUMP FAILED (ERROR 5) ** Automatic reboot in 15 seconds - press a key on the console to abort Rebooting... --- >How-To-Repeat: 1. remove disk from gmirror 2. run twice "fdisk -BI" on this disk >Fix: when --- dd if=/dev/zero of=/dev/ad6 bs=1M count1 --- kernel not panic on the fdisk. >Release-Note: >Audit-Trail: >Unformatted: