From owner-freebsd-current@FreeBSD.ORG Sat Jun 18 04:31:00 2011 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 C6B60106566B for ; Sat, 18 Jun 2011 04:31:00 +0000 (UTC) (envelope-from jwd@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id B4F898FC12 for ; Sat, 18 Jun 2011 04:31:00 +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 p5I4V0T7044769 for ; Sat, 18 Jun 2011 04:31:00 GMT (envelope-from jwd@freefall.freebsd.org) Received: (from jwd@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p5I4V04l044764 for freebsd-current@freebsd.org; Sat, 18 Jun 2011 04:31:00 GMT (envelope-from jwd) Date: Sat, 18 Jun 2011 04:31:00 +0000 From: John To: freebsd-current@freebsd.org Message-ID: <20110618043100.GA40745@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i X-Mailman-Approved-At: Sat, 18 Jun 2011 10:28:53 +0000 Subject: LOR: vfs_lookup.c:501 ffs_vnops.c:261 vfs_subr.c:2134 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: Sat, 18 Jun 2011 04:31:00 -0000 Hi folks, I'm seeing the following LOR in dmesg after my latest update this evening. # uname -a FreeBSD zfscarp3p 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Fri Jun 17 22:36:45 EDT 2011 root@zfscarp3p/usr/obj/usr/src.2011-06-17_9.36pm_EDT/sys/GENERIC amd6 WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from ufs:/dev/da56s1a [rw]... lock order reversal: 1st 0xfffffe003d2f9278 ufs (ufs) @ /usr/src.2011-06-17_9.36pm_EDT/sys/kern/vfs_lookup.c:501 2nd 0xffffff9f0c7f0e58 bufwait (bufwait) @ /usr/src.2011-06-17_9.36pm_EDT/sys/ufs/ffs/ffs_vnops.c:261 3rd 0xfffffe003d371278 ufs (ufs) @ /usr/src.2011-06-17_9.36pm_EDT/sys/kern/vfs_subr.c:2134 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x807 __lockmgr_args() at __lockmgr_args+0xd42 ffs_lock() at ffs_lock+0x8c VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vget() at vget+0x7b vfs_hash_get() at vfs_hash_get+0xd5 ffs_vgetf() at ffs_vgetf+0x48 softdep_sync_buf() at softdep_sync_buf+0x56a ffs_syncvnode() at ffs_syncvnode+0x293 ffs_truncate() at ffs_truncate+0x4c4 ufs_direnter() at ufs_direnter+0x6ed ufs_makeinode() at ufs_makeinode+0x250 VOP_CREATE_APV() at VOP_CREATE_APV+0x8d vn_open_cred() at vn_open_cred+0x46a kern_openat() at kern_openat+0x17f syscallenter() at syscallenter+0x1aa syscall() at syscall+0x4c Xfast_syscall() at Xfast_syscall+0xdd --- syscall (5, FreeBSD ELF64, open), rip = 0x800936b7c, rsp = 0x7fffffffdac8, rbp = 0 --- bce1: Gigabit link up! Only seems to happen once at boot time. Thanks, John