From owner-freebsd-bugs@FreeBSD.ORG Tue Mar 25 19:20:02 2008 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 F2DDC1065672 for ; Tue, 25 Mar 2008 19:20:01 +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 DE5BE8FC26 for ; Tue, 25 Mar 2008 19:20:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id m2PJK1m2082251 for ; Tue, 25 Mar 2008 19:20:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.2/8.14.1/Submit) id m2PJK1LP082250; Tue, 25 Mar 2008 19:20:01 GMT (envelope-from gnats) Resent-Date: Tue, 25 Mar 2008 19:20:01 GMT Resent-Message-Id: <200803251920.m2PJK1LP082250@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, Francois Ranchin Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 92DA41065671 for ; Tue, 25 Mar 2008 19:10:08 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id 8F8E58FC23 for ; Tue, 25 Mar 2008 19:10:08 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.2/8.14.2) with ESMTP id m2PJ9tsE073768 for ; Tue, 25 Mar 2008 19:09:55 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.2/8.14.1/Submit) id m2PJ9t42073767; Tue, 25 Mar 2008 19:09:55 GMT (envelope-from nobody) Message-Id: <200803251909.m2PJ9t42073767@www.freebsd.org> Date: Tue, 25 Mar 2008 19:09:55 GMT From: Francois Ranchin To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/122087: [zfs][lor] exclusive sleep mutex struct mount mtx 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: Tue, 25 Mar 2008 19:20:02 -0000 >Number: 122087 >Category: kern >Synopsis: [zfs][lor] exclusive sleep mutex struct mount mtx >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Mar 25 19:20:01 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Francois Ranchin >Release: 7.0-STABLE >Organization: >Environment: FreeBSD noway.fyrou.net 7.0-STABLE FreeBSD 7.0-STABLE #0: Mon Mar 24 22:02:50 CET 2008 root@noway.fyrou.net:/usr/obj/usr/src/sys/NOWAY i386 >Description: Mar 24 23:14:31 noway kernel: lock order reversal: Mar 24 23:14:31 noway kernel: 1st 0xc6124804 struct mount mtx (struct mount mtx) @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:206 Mar 24 23:14:31 noway kernel: 2nd 0xc59cc010 sleep mtxpool (sleep mtxpool) @ /usr/src/sys/kern/kern_resource.c:1273 Mar 24 23:14:31 noway kernel: uma_zalloc_arg: zone "256" with the following non-sleepable locks held: Mar 24 23:14:31 noway kernel: exclusive sleep mutex struct mount mtx r = 0 (0xc6124804) locked @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:206 Mar 24 23:14:31 noway kernel: uma_zalloc_arg: zone "256" with the following non-sleepable locks held: Mar 24 23:14:31 noway kernel: exclusive sleep mutex struct mount mtx r = 0 (0xc6124568) locked @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:206 This messages comes after the 14th march 2008. I have played from this date to 24th with a debug kernel for testing the age driver from Pyun. And nerver seen. csup the 24th, compiled and installed with debuging active and seen these messages. >How-To-Repeat: play with zfs, I have an hourly snapshot running. One of them become undestroyable without panicing . >Fix: >Release-Note: >Audit-Trail: >Unformatted: