From owner-freebsd-bugs@FreeBSD.ORG Wed Dec 1 13:20:09 2010 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 806F21065674 for ; Wed, 1 Dec 2010 13:20:09 +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 3D4248FC12 for ; Wed, 1 Dec 2010 13:20:09 +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 oB1DK98t057961 for ; Wed, 1 Dec 2010 13:20:09 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id oB1DK96J057960; Wed, 1 Dec 2010 13:20:09 GMT (envelope-from gnats) Resent-Date: Wed, 1 Dec 2010 13:20:09 GMT Resent-Message-Id: <201012011320.oB1DK96J057960@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, Olivier Cochard-Labbé Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CA0191065672 for ; Wed, 1 Dec 2010 13:17:41 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (unknown [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id B90CF8FC1B for ; Wed, 1 Dec 2010 13:17:41 +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 oB1DHfUn028789 for ; Wed, 1 Dec 2010 13:17:41 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id oB1DHfxH028788; Wed, 1 Dec 2010 13:17:41 GMT (envelope-from nobody) Message-Id: <201012011317.oB1DHfxH028788@red.freebsd.org> Date: Wed, 1 Dec 2010 13:17:41 GMT From: Olivier Cochard-Labbé To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/152741: [lor] vfs_bio.c / ufs_dirhash.c 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: Wed, 01 Dec 2010 13:20:09 -0000 >Number: 152741 >Category: kern >Synopsis: [lor] vfs_bio.c / ufs_dirhash.c >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 Dec 01 13:20:08 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Olivier Cochard-Labbé >Release: 8.1 >Organization: >Environment: FreeBSD d630.bsdrp.net 8.1-RELEASE-p2 FreeBSD 8.1-RELEASE-p2 #8: Wed Dec 1 11:25:17 CET 2010 root@d630.bsdrp.net:/usr/obj/usr/src/sys/DellD630 amd64 >Description: My dmesg show me this lor: lock order reversal: 1st 0xffffff8029423328 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2559 2nd 0xffffff000192b800 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:285 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e _sx_xlock() at _sx_xlock+0x55 ufsdirhash_acquire() at ufsdirhash_acquire+0x33 ufsdirhash_add() at ufsdirhash_add+0x19 ufs_direnter() at ufs_direnter+0x889 ufs_mkdir() at ufs_mkdir+0x42d VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93 kern_mkdirat() at kern_mkdirat+0x20e syscall() at syscall+0x2c2 Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (136, FreeBSD ELF64, mkdir), rip = 0x80072c14c, rsp = 0x7fffffffe7c8, rbp = 0x800a04050 --- >How-To-Repeat: Each boot. >Fix: >Release-Note: >Audit-Trail: >Unformatted: