From owner-freebsd-current@FreeBSD.ORG Fri Sep 11 17:25:29 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AC1F91065693 for ; Fri, 11 Sep 2009 17:25:29 +0000 (UTC) (envelope-from pieter@degoeje.nl) Received: from smtp.utwente.nl (smtp1.utsp.utwente.nl [130.89.2.8]) by mx1.freebsd.org (Postfix) with ESMTP id 346768FC0A for ; Fri, 11 Sep 2009 17:25:28 +0000 (UTC) Received: from lux.student.utwente.nl (lux.student.utwente.nl [130.89.170.81]) by smtp.utwente.nl (8.12.10/SuSE Linux 0.7) with ESMTP id n8BHOCJD031972 for ; Fri, 11 Sep 2009 19:24:12 +0200 From: Pieter de Goeje To: freebsd-current@freebsd.org Date: Fri, 11 Sep 2009 19:24:10 +0200 User-Agent: KMail/1.9.10 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200909111924.10927.pieter@degoeje.nl> X-UTwente-MailScanner-Information: Scanned by MailScanner. Contact icts.servicedesk@utwente.nl for more information. X-UTwente-MailScanner: Found to be clean X-UTwente-MailScanner-From: pieter@degoeje.nl X-Spam-Status: No Subject: BETA3: network processes hang in keglimit (unkillable) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Sep 2009 17:25:29 -0000 I just experienced a complete loss of network, where every network related process would sleep on "keglimit". I was unable to recover from this situation. I tried killing the processes with SIGKILL, but it didn't work, and I tried to bring the network interface (em) down and up again, which also didn't work. A reboot "solved" the problem. The machine was handling some major traffic, both TCP and UDP. Apparently the system was waiting on some resource to free up, but what could it be? How can this situation be avoided in the future? uname: 8.0-BETA3 FreeBSD 8.0-BETA3 #1: Sun Aug 30 01:23:36 CEST 2009 amd64 -- Pieter de Goeje