From owner-freebsd-hackers@FreeBSD.ORG Fri Apr 9 10:28:54 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 860CF106566C for ; Fri, 9 Apr 2010 10:28:54 +0000 (UTC) (envelope-from sudakov+freebsd@sibptus.tomsk.ru) Received: from relay2.tomsk.ru (relay2.tomsk.ru [212.73.124.8]) by mx1.freebsd.org (Postfix) with ESMTP id DC4B18FC15 for ; Fri, 9 Apr 2010 10:28:53 +0000 (UTC) X-Virus-Scanned: by clamd daemon 0.93.1 for FreeBSD at relay2.tomsk.ru Received: from admin.sibptus.tomsk.ru (account sudakov@sibptus.tomsk.ru [212.73.125.240] verified) by relay2.tomsk.ru (CommuniGate Pro SMTP 5.1.13) with ESMTPSA id 13716293 for freebsd-hackers@freebsd.org; Fri, 09 Apr 2010 17:28:51 +0700 Received: from admin.sibptus.tomsk.ru (sudakov@localhost [127.0.0.1]) by admin.sibptus.tomsk.ru (8.13.6/8.13.6) with ESMTP id o39ASo1h038720 for ; Fri, 9 Apr 2010 17:28:50 +0700 (OMSST) (envelope-from sudakov+freebsd@sibptus.tomsk.ru) Received: (from sudakov@localhost) by admin.sibptus.tomsk.ru (8.13.6/8.13.6/Submit) id o39ASnO1038719 for freebsd-hackers@freebsd.org; Fri, 9 Apr 2010 17:28:49 +0700 (OMSST) (envelope-from sudakov+freebsd@sibptus.tomsk.ru) X-Authentication-Warning: admin.sibptus.tomsk.ru: sudakov set sender to sudakov+freebsd@sibptus.tomsk.ru using -f Date: Fri, 9 Apr 2010 17:28:49 +0700 From: Victor Sudakov To: freebsd-hackers Message-ID: <20100409102849.GA38673@admin.sibptus.tomsk.ru> Mail-Followup-To: Victor Sudakov , freebsd-hackers References: <20100331044031.GA24278@admin.sibptus.tomsk.ru> <20100331105831.GA31323@admin.sibptus.tomsk.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100331105831.GA31323@admin.sibptus.tomsk.ru> User-Agent: Mutt/1.4.2.3i Organization: AO "Svyaztransneft", SibPTUS X-PGP-Key: http://vas.tomsk.ru/vas.asc Subject: Re: kern/104406 on 8.0-RELEASE-p2 ? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Apr 2010 10:28:54 -0000 Victor Sudakov wrote: > > > I seem to have symptoms of kern/104406 on a 8.0-RELEASE-p2 system. > > > After an uptime of several days, many processes get stuck in the "ufs" > > > state. The processes which had already opened some files before the > > > deadlock continue working all right, e.g. my old login sessions are > > > functional but I cannot start a new ssh session to the box. > > > > > > Can you advise me a workaround? > > > > > > The box is being used as a BGP (quagga) router with two full views. > > > Hardware configuration is below: > > > > > [dd] > > > > > Do you have disable the flowtable options? > > > > # sysctl net.inet.flowtable.enable=0 > > net.inet.flowtable.enable: 1 -> 0 > > > > This feature is default since 8 release, but is not good for bgp full > > routing. > > It seems to be a different issue, kern/144917 related, but a good idea > anyway to set net.inet.flowtable.enable=0. Thank you for the reminder. > > However, my box does not crash or lock up hard, just some processes > lock up in the "ufs" state and other processes cannot access files. With net.inet.flowtable.enable=0 the box has been working for a week already without lockups. Is this flowtable really the cause of the problem, or is it a coincidence? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN sip:sudakov@sibptus.tomsk.ru