From owner-freebsd-stable@FreeBSD.ORG Tue Apr 21 16:11:28 2009 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F28291065670; Tue, 21 Apr 2009 16:11:27 +0000 (UTC) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by mx1.freebsd.org (Postfix) with ESMTP id BC3E68FC14; Tue, 21 Apr 2009 16:11:27 +0000 (UTC) (envelope-from mike@sentex.net) Received: from mdt-xp.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.14.3/8.14.3) with ESMTP id n3LGAYll090970; Tue, 21 Apr 2009 12:10:34 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <200904211610.n3LGAYll090970@lava.sentex.ca> X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Tue, 21 Apr 2009 12:11:32 -0400 To: Ruslan Ermilov From: Mike Tancsa In-Reply-To: <20090421153112.GA47589@edoofus.dev.vega.ru> References: <200904210524.n3L5O9YS086865@lava.sentex.ca> <200904211111.57295.jhb@freebsd.org> <200904211519.n3LFJFsk090691@lava.sentex.ca> <20090421153112.GA47589@edoofus.dev.vega.ru> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Cc: Robert Watson , freebsd-stable@FreeBSD.org, John Baldwin Subject: Re: RELENG_7 crash X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Apr 2009 16:11:28 -0000 At 11:31 AM 4/21/2009, Ruslan Ermilov wrote: >: >: Note that these changes simply close races around use of ifindex_table, >: and make no attempt to solve the probem of disappearing ifnets. Further > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >: refinement of this work, including with respect to ifindex_table >: resizing, is still required. >: >: In a future change, the ifnet lock should be converted from a mutex to an >: rwlock in order to reduce contention. Hi, Thanks for the info! In the mean, time, apart from disabling snmpwalking, is there anything I can do to mitigate triggering this bug ? The box runs ospf/zebra for routing daemons and mpd53 for l2tp LNS termination. ---Mike