From owner-freebsd-bugs@FreeBSD.ORG Thu Sep 30 12:00:16 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 67B28106566B for ; Thu, 30 Sep 2010 12:00:16 +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 28A598FC12 for ; Thu, 30 Sep 2010 12:00:16 +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 o8UC0G8m088776 for ; Thu, 30 Sep 2010 12:00:16 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id o8UC0F2Y088775; Thu, 30 Sep 2010 12:00:16 GMT (envelope-from gnats) Resent-Date: Thu, 30 Sep 2010 12:00:16 GMT Resent-Message-Id: <201009301200.o8UC0F2Y088775@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, "Oleg A. Mamontov" Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3E09B106564A for ; Thu, 30 Sep 2010 11:56:19 +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 2DC778FC16 for ; Thu, 30 Sep 2010 11:56:19 +0000 (UTC) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id o8UBuIMC016755 for ; Thu, 30 Sep 2010 11:56:18 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id o8UBuIGl016726; Thu, 30 Sep 2010 11:56:18 GMT (envelope-from nobody) Message-Id: <201009301156.o8UBuIGl016726@www.freebsd.org> Date: Thu, 30 Sep 2010 11:56:18 GMT From: "Oleg A. Mamontov" To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: misc/151111: vnodes leakage during zfs unmount 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: Thu, 30 Sep 2010 12:00:16 -0000 >Number: 151111 >Category: misc >Synopsis: vnodes leakage during zfs unmount >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Sep 30 12:00:15 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Oleg A. Mamontov >Release: 8-STABLE >Organization: Rambler Internet Holding >Environment: FreeBSD store06.video.rambler.ru 8.0-20100505-SNAP FreeBSD 8.0-20100505-SNAP #0: Wed May 5 07:45:52 UTC 2010 root@nat-sl.rambler.ru:/usr/obj/usr/src/sys/DEVEL amd64 >Description: During `zfs mount tank`, `zfs unmount tank` vfs.numvnodes is growing up to kern.maxvnodes. >How-To-Repeat: mdconfig -a -s128m -u0 zpool create tank md0 zfs umount tank for i in `jot 1000`; do zfs mount tank; printf '%4d ' $i; sysctl vfs.numvnodes; zfs umount tank; done ######################## 1 vfs.numvnodes: 708 2 vfs.numvnodes: 709 3 vfs.numvnodes: 710 4 vfs.numvnodes: 711 5 vfs.numvnodes: 712 .. 995 vfs.numvnodes: 1702 996 vfs.numvnodes: 1703 997 vfs.numvnodes: 1704 998 vfs.numvnodes: 1705 999 vfs.numvnodes: 1706 1000 vfs.numvnodes: 1707 >Fix: >Release-Note: >Audit-Trail: >Unformatted: