From owner-freebsd-bugs@FreeBSD.ORG Sun Dec 25 14:20:10 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 E0B681065672 for ; Sun, 25 Dec 2011 14:20:09 +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 ADC468FC0C for ; Sun, 25 Dec 2011 14:20:09 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id pBPEK9SY029967 for ; Sun, 25 Dec 2011 14:20:09 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id pBPEK9n4029966; Sun, 25 Dec 2011 14:20:09 GMT (envelope-from gnats) Resent-Date: Sun, 25 Dec 2011 14:20:09 GMT Resent-Message-Id: <201112251420.pBPEK9n4029966@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, Raphael Kubo da Costa Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2B8CD1065675 for ; Sun, 25 Dec 2011 14:17:30 +0000 (UTC) (envelope-from kubito@gmail.com) Received: from mail-gy0-f182.google.com (mail-gy0-f182.google.com [209.85.160.182]) by mx1.freebsd.org (Postfix) with ESMTP id DD5538FC1F for ; Sun, 25 Dec 2011 14:17:29 +0000 (UTC) Received: by ghrr16 with SMTP id r16so3912140ghr.13 for ; Sun, 25 Dec 2011 06:17:29 -0800 (PST) Received: by 10.236.178.33 with SMTP id e21mr29934015yhm.4.1324821065943; Sun, 25 Dec 2011 05:51:05 -0800 (PST) Received: from localhost ([201.82.194.6]) by mx.google.com with ESMTPS id s12sm49926953anl.9.2011.12.25.05.51.04 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 25 Dec 2011 05:51:05 -0800 (PST) Message-Id: <4ef72a49.0c5a650a.0d53.0a50@mx.google.com> Date: Sun, 25 Dec 2011 05:51:05 -0800 (PST) From: Raphael Kubo da Costa Sender: Raphael Kubo da Costa To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/163608: [lor] Two seemingly vfs-related LORs X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Raphael Kubo da Costa List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Dec 2011 14:20:10 -0000 >Number: 163608 >Category: kern >Synopsis: [lor] Two seemingly vfs-related LORs >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: Sun Dec 25 14:20:09 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Raphael Kubo da Costa >Release: FreeBSD 8.2-STABLE amd64 >Organization: >Environment: System: FreeBSD gibbon 8.2-STABLE FreeBSD 8.2-STABLE #37: Sun Dec 25 11:10:40 BRST 2011 root@gibbon:/usr/obj/usr/src/sys/GIBBON amd64 >Description: After updating my 8-STABLE installation today, I get some LOR messages after logging in and using the machine as usual. lock order reversal: 1st 0xffffff0004957c48 filedesc structure (filedesc structure) @ /usr/src/sys/kern/kern_descrip.c:1135 2nd 0xffffff0004b0b448 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:4201 KDB: stack backtrace: db_trace_self_wrapper() at 0xffffffff801d488a = db_trace_self_wrapper+0x2a kdb_backtrace() at 0xffffffff80349e07 = kdb_backtrace+0x37 _witness_debugger() at 0xffffffff8035a72c = _witness_debugger+0x2c witness_checkorder() at 0xffffffff8035b771 = witness_checkorder+0x651 __lockmgr_args() at 0xffffffff803086b8 = __lockmgr_args+0xb98 ffs_lock() at 0xffffffff805039fc = ffs_lock+0x8c VOP_LOCK1_APV() at 0xffffffff80592442 = VOP_LOCK1_APV+0x52 _vn_lock() at 0xffffffff803afef7 = _vn_lock+0x47 knlist_remove_kq() at 0xffffffff802eddfe = knlist_remove_kq+0x7e knote_fdclose() at 0xffffffff802eeee7 = knote_fdclose+0x157 kern_close() at 0xffffffff802ea399 = kern_close+0xe9 amd64_syscall() at 0xffffffff80550a4b = amd64_syscall+0x11b Xfast_syscall() at 0xffffffff8053a56c = Xfast_syscall+0xfc --- syscall (6, FreeBSD ELF64, close), rip = 0x80118759c, rsp = 0x7fffffffe838, rbp = 0x8030506d0 --- lock order reversal: 1st 0xffffff80f37a9250 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2636 2nd 0xffffff0004528600 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:285 KDB: stack backtrace: db_trace_self_wrapper() at 0xffffffff801d488a = db_trace_self_wrapper+0x2a kdb_backtrace() at 0xffffffff80349e07 = kdb_backtrace+0x37 _witness_debugger() at 0xffffffff8035a72c = _witness_debugger+0x2c witness_checkorder() at 0xffffffff8035b771 = witness_checkorder+0x651 _sx_xlock() at 0xffffffff80323d34 = _sx_xlock+0x34 ufsdirhash_acquire() at 0xffffffff805057e3 = ufsdirhash_acquire+0x33 ufsdirhash_add() at 0xffffffff80505d39 = ufsdirhash_add+0x19 ufs_direnter() at 0xffffffff805083af = ufs_direnter+0x82f ufs_makeinode() at 0xffffffff8050d705 = ufs_makeinode+0x245 VOP_CREATE_APV() at 0xffffffff80592d84 = VOP_CREATE_APV+0x44 vn_open_cred() at 0xffffffff803afb2a = vn_open_cred+0x44a kern_openat() at 0xffffffff803ab9ff = kern_openat+0x17f amd64_syscall() at 0xffffffff80550a4b = amd64_syscall+0x11b Xfast_syscall() at 0xffffffff8053a56c = Xfast_syscall+0xfc --- syscall (5, FreeBSD ELF64, open), rip = 0x802c5072c, rsp = 0x7fffffffdb08, rbp = 0x8078041c0 --- >How-To-Repeat: Log in and use the system. >Fix: >Release-Note: >Audit-Trail: >Unformatted: