From owner-freebsd-bugs@FreeBSD.ORG Fri Sep 30 18:50:03 2011 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 7232D106566B for ; Fri, 30 Sep 2011 18:50:03 +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 35B2E8FC12 for ; Fri, 30 Sep 2011 18:50:03 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p8UIo3q9060387 for ; Fri, 30 Sep 2011 18:50:03 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p8UIo31Q060386; Fri, 30 Sep 2011 18:50:03 GMT (envelope-from gnats) Resent-Date: Fri, 30 Sep 2011 18:50:03 GMT Resent-Message-Id: <201109301850.p8UIo31Q060386@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, "Jakub Szafrański" Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AE631106566C for ; Fri, 30 Sep 2011 18:48:32 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 9E0B98FC08 for ; Fri, 30 Sep 2011 18:48:32 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p8UImWhY059155 for ; Fri, 30 Sep 2011 18:48:32 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p8UImW7Y059153; Fri, 30 Sep 2011 18:48:32 GMT (envelope-from nobody) Message-Id: <201109301848.p8UImW7Y059153@red.freebsd.org> Date: Fri, 30 Sep 2011 18:48:32 GMT From: "Jakub Szafrański" To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/161169: ZFS causes kernel panic in dbuf_dirty 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: Fri, 30 Sep 2011 18:50:03 -0000 >Number: 161169 >Category: kern >Synopsis: ZFS causes kernel panic in dbuf_dirty >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Sep 30 18:50:02 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Jakub Szafrański >Release: 8.2-RELEASE-p3 >Organization: admin.net.pl >Environment: FreeBSD mydevil.mydevil.net 8.2-RELEASE-p3 FreeBSD 8.2-RELEASE-p3 #7: Wed Sep 28 17:06:07 CEST 2011 root@mydevil.mydevil.net:/usr/obj/usr/src/sys/mydevil amd64 >Description: FreeBSD 8.2-RELEASE-p3 seems to panic with ZFS dbuf_dirty function: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x28 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80b488cb stack pointer = 0x28:0xffffff851544a550 frame pointer = 0x28:0xffffff851544a600 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 46860 (nginx) [thread pid 46860 tid 101076 ] Stopped at dbuf_dirty+0x1b: movq 0x28(%rax),%rax >How-To-Repeat: I don't know how to reproduce this bug, it happened only once. >Fix: >Release-Note: >Audit-Trail: >Unformatted: