From owner-freebsd-questions@FreeBSD.ORG Thu May 12 08:51:52 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4D37C16A4CE for ; Thu, 12 May 2005 08:51:52 +0000 (GMT) Received: from srvdmz13.oekb.co.at (srvdmz13.oekb.co.at [143.245.5.103]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8674843D6D for ; Thu, 12 May 2005 08:51:50 +0000 (GMT) (envelope-from Ewald.Jenisch@oekb.at) X-SEF-Processed: 5_0_0_713__2005_05_12_10_51_48 X-SEF-EB89CDFD-460A-478E-BCAC-B017B9EC121B: 1 Received: from Unknown [143.245.2.191] by srvdmz13.oekb.co.at - SurfControl E-mail Filter (5.0); Do, 12 Mai 2005 10:51:48 +0200 Received: from aurora.oekb.co.at ([143.245.9.16]) by MAIL01.oekb.co.at with Microsoft SMTPSVC(5.0.2195.6713); Thu, 12 May 2005 10:51:48 +0200 Received: from aurora.oekb.co.at (localhost.oekb.co.at [127.0.0.1]) by aurora.oekb.co.at (8.13.3/8.13.1) with ESMTP id j4C8pl3s002747; Thu, 12 May 2005 10:51:47 +0200 (CEST) (envelope-from ej@aurora.oekb.co.at) Received: (from ej@localhost) by aurora.oekb.co.at (8.13.3/8.13.1/Submit) id j4C8plxL002746; Thu, 12 May 2005 10:51:47 +0200 (CEST) (envelope-from ej) Date: Thu, 12 May 2005 10:51:47 +0200 From: Ewald Jenisch To: freebsd-questions@freebsd.org Message-ID: <20050512085147.GA2114@aurora.oekb.co.at> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i X-Organization: Oesterreichische Kontrollbank AG X-Phone: +43 1 53127-2175 X-Fax: +43 1 53127-4175 X-OriginalArrivalTime: 12 May 2005 08:51:48.0257 (UTC) FILETIME=[D50D6110:01C556CF] Subject: Tracking down "kern.ipc.maxpipekva exceeded" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 May 2005 08:51:52 -0000 Hi, For some time one of my machines in plaged be becoming completely unresponsive after different amounts of time (several hours up to several days). Symptoms: Machine is PINGable, but no access over the network is possible (neither ssh-login nor http-access). /var/log/messages: May 11 12:11:00 io kernel: kern.ipc.maxpipekva exceeded; see tuning(7) maxproc limit exceeded by uid 0, please see tuning(7) and login.conf(5). (tons of both) and finally May 11 12:42:03 io kernel: maxproc May 11 12:42:03 io kernel: limit exceede May 11 12:42:03 io kernel: d by uid May 11 12:42:03 io kernel: 0, ple May 11 12:42:03 io kernel: se see tun May 11 12:42:03 io kernel: ng(7) and l May 11 12:42:03 io kernel: ogin.conf May 11 12:42:03 io kernel: (5). May 11 12:42:03 io kernel: >From that time on I can't log in any more, not even from the console. When rebooting the box via ctl-alt-del, before shutdown, it fails to sync buffers on shutdown (counts down to 1 and stays there) and finally gives up - requiring an fsck on reboot. Please note that the box does *not* crash completely, nor do I get a kernel panic though. The system is running "5.4-STABLE FreeBSD 5.4-STABLE #0: Sat Apr 16 10:19:26 CEST 2005" but this problem has been there since I first installed 5.3 on the box. So my primary question is: How do I track down the cause of the problem, i.e. which program/process is responsible for "kern.ipc.maxpipekva" to be exceeded? Thanks much in advance for any clue, -ewald