From owner-freebsd-bugs@FreeBSD.ORG Wed Apr 2 06:40:00 2014 Return-Path: Delivered-To: freebsd-bugs@smarthost.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B9DDB183 for ; Wed, 2 Apr 2014 06:40:00 +0000 (UTC) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 96CA4F21 for ; Wed, 2 Apr 2014 06:40:00 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.8/8.14.8) with ESMTP id s326e0DG078448 for ; Wed, 2 Apr 2014 06:40:00 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.8/8.14.8/Submit) id s326e08v078447; Wed, 2 Apr 2014 06:40:00 GMT (envelope-from gnats) Resent-Date: Wed, 2 Apr 2014 06:40:00 GMT Resent-Message-Id: <201404020640.s326e08v078447@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, arrowdodger <6yearold@gmail.com> Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id DF411FEA for ; Wed, 2 Apr 2014 06:31:34 +0000 (UTC) Received: from cgiserv.freebsd.org (cgiserv.freebsd.org [IPv6:2001:1900:2254:206a::50:4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B2A06E6C for ; Wed, 2 Apr 2014 06:31:34 +0000 (UTC) Received: from cgiserv.freebsd.org ([127.0.1.6]) by cgiserv.freebsd.org (8.14.8/8.14.8) with ESMTP id s326VYOm065146 for ; Wed, 2 Apr 2014 06:31:34 GMT (envelope-from nobody@cgiserv.freebsd.org) Received: (from nobody@localhost) by cgiserv.freebsd.org (8.14.8/8.14.8/Submit) id s326VYuR065140; Wed, 2 Apr 2014 06:31:34 GMT (envelope-from nobody) Message-Id: <201404020631.s326VYuR065140@cgiserv.freebsd.org> Date: Wed, 2 Apr 2014 06:31:34 GMT From: arrowdodger <6yearold@gmail.com> To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Subject: kern/188187: [10-STABLE] [ZFS] Kernel panic on zpool import: integer divide fault X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Apr 2014 06:40:00 -0000 >Number: 188187 >Category: kern >Synopsis: [10-STABLE] [ZFS] Kernel panic on zpool import: integer divide fault >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Apr 02 06:40:00 UTC 2014 >Closed-Date: >Last-Modified: >Originator: arrowdodger >Release: 10.0-STABLE-amd64-20140329-r263906 >Organization: >Environment: >Description: I have root on ZFS and using 10-STABLE. Somewhere from March 15 i started to get following panic when mounting root: Fatal trap 18: integer divide fault while in kernel mode Fatal trap 18: integer divide fault while in kernel mode cpuid = 0; cpuid = 1; apic id = 00 apic id = 01 instruction pointer = 0x20:0xffffffff81a7f92d instruction pointer = 0x28:0xffffffff81a7f92d stack pointer = 0x28:0xfffffe0097a8b100 stack pointer = 0x28:0xfffffe0097a12ba0 frame pointer = 0x28:0xfffffe0097a8b120 frame pointer = 0x28:0xfffffe0097a12bc0 code segment = base 0x0, limit 0xfffff, type 0x1b code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = processor eflags = interrupt enabled, interrupt enabled, resume, resume, IOPL = 0 IOPL = 0 current process = current process = 0 (system_taskq_1) 1198 (zpool) trap number = 18 tpanic: integer divide fault cpuid = 0 KDB: stack backtrace: #0 0xffffffff80910f30 at kdb_backtrace+0x60 #1 0xffffffff808d6645 at panic+0x155 #2 0xffffffff80cc9a9f at trap_fatal+0x38f #3 0xffffffff80cc96fc at trap+0x72c #4 0xffffffff80cb04f2 at calltrap+0x8 #5 0xffffffff81a8c4e6 at vdev_mirror_io_start+0x146 #6 0xffffffff81aa7205 at zio_vdev_io_start+0x185 #7 0xffffffff81aa4352 at zio_execute+0x162 #8 0xffffffff81a2f83d at arc_read+0x87d #9 0xffffffff81a4917e at traverse_prefetcher+0x13e #10 0xffffffff81a48580 at traverse_visitbp+0x270 #11 0xffffffff81a48749 at traverse_visitbp+0x439 #12 0xffffffff81a48fa3 at traverse_dnode+0x83 #13 0xffffffff81a48d45 at traverse_visitbp+0xa35 #14 0xffffffff81a48749 at traverse_visitbp+0x439 #15 0xffffffff81a48fa3 at traverse_dnode+0x83 #16 0xffffffff81a48a0c at traverse_visitbp+0x6fc #17 0xffffffff81a482b6 at traverse_prefetch_thread+0x96 I've downloaded latest snapshot of 10-STABLE, booted it and ran ~ # zpool import -fR /mnt zroot The error was same. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: