From owner-freebsd-current@FreeBSD.ORG Wed Sep 2 03:04:54 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 04457106566C for ; Wed, 2 Sep 2009 03:04:53 +0000 (UTC) (envelope-from grarpamp@gmail.com) Received: from mail-ew0-f208.google.com (mail-ew0-f208.google.com [209.85.219.208]) by mx1.freebsd.org (Postfix) with ESMTP id 56F9D8FC08 for ; Wed, 2 Sep 2009 03:04:52 +0000 (UTC) Received: by ewy4 with SMTP id 4so421683ewy.36 for ; Tue, 01 Sep 2009 20:04:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=rKnfA8RHii7B9SbLuPh/3bioAOZY82Tcz+XnXADvAL8=; b=aWvuQN2mU0XJJV5VpTduHZFoowDD3uqS9Lem5sPLVLGrZ7TC7HDwiC62+GPdrVJNGs rYY4A0E9LAcMehU4YuQCQtO/45E/sr8INaQnsSPq604h8Mh2Hc8OMpgdGphZfLkzxhaJ /s/2K2eeDL81d2vWR4a/Hdi2fK+ZqOrb1op6g= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=JDb7s3HjtZGkXiljysPS0VUeIvpYv7a5DnaG6zC7GkV0kQC5GKPnnCLqmUusQH1b9O zualIW8qDsUghkOBxZYcxY2rkl4hDCrPPSX9aK9ewMoKMiI2pIMknl/gTYHnIfqqBLnk KiJWyUTlGuwnn5pxAC+RWWmqh7vESVQ+9E4BU= MIME-Version: 1.0 Received: by 10.211.159.2 with SMTP id l2mr8155767ebo.56.1251860691718; Tue, 01 Sep 2009 20:04:51 -0700 (PDT) Date: Tue, 1 Sep 2009 23:04:51 -0400 Message-ID: From: grarpamp To: freebsd-current@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Mailman-Approved-At: Wed, 02 Sep 2009 03:45:27 +0000 Subject: LOR RELENG_8 umount X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Sep 2009 03:04:54 -0000 FYI... seems to happen now and then, haven't narrowed further. lock order reversal: 1st 0xc51036a0 ufs (ufs) @ /.../src/sys/kern/vfs_mount.c:1200 2nd 0xc6104ad0 devfs (devfs) @ /.../src/sys/ufs/ffs/ffs_vfsops.c:1194 KDB: stack backtrace: db_trace_self_wrapper(c0c75d72,e6f109ec,c08c1375,c08b20fb,c0c78d15,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08b20fb,c0c78d15,c452f638,c452f568,e6f10a48,...) at kdb_backtrace+0x29 _witness_debugger(c0c78d15,c6104ad0,c0c674f6,c452f568,c0c99f1f,...) at _witness_debugger+0x25 witness_checkorder(c6104ad0,9,c0c99f1f,4aa,c6104aec,...) at witness_checkorder+0x839 __lockmgr_args(c6104ad0,80400,c6104aec,0,0,...) at __lockmgr_args+0x7a7 vop_stdlock(e6f10b50,556,e6f10b48,80400,c6104a78,...) at vop_stdlock+0x62 VOP_LOCK1_APV(c0d55960,e6f10b50,c6104b84,c0d92fe0,c6104a78,...) at VOP_LOCK1_APV+0xb5 _vn_lock(c6104a78,80400,c0c99f1f,4aa,c592a000,...) at _vn_lock+0x5e ffs_flushfiles(c6112a10,0,c5dbe900,556,3,...) at ffs_flushfiles+0xa7 softdep_flushfiles(c6112a10,0,c5dbe900,c0911420,c60feb84,...) at softdep_flushfiles+0x2e ffs_unmount(c6112a10,8000000,c0c7fa06,4f5,80,...) at ffs_unmount+0x149 dounmount(c6112a10,8000000,c5dbe900,47a,398190a5,...) at dounmount+0x46d unmount(c5dbe900,e6f10cf8,8,c5dbe900,c0d58f08,...) at unmount+0x2ff syscall(e6f10d38) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (22, FreeBSD ELF32, unmount), eip = 0x280d9c2f, esp = 0xbfbfe58c, ebp = 0xbfbfe658 ---