From owner-freebsd-stable@FreeBSD.ORG Mon Mar 27 02:56:25 2006 Return-Path: X-Original-To: stable@freebsd.org Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1DC5416A41F for ; Mon, 27 Mar 2006 02:56:25 +0000 (UTC) (envelope-from Stephen.Clark@seclark.us) Received: from smtpout09-04.prod.mesa1.secureserver.net (smtpout09-04.prod.mesa1.secureserver.net [64.202.165.17]) by mx1.FreeBSD.org (Postfix) with SMTP id 8FEC843D53 for ; Mon, 27 Mar 2006 02:56:24 +0000 (GMT) (envelope-from Stephen.Clark@seclark.us) Received: (qmail 13904 invoked from network); 27 Mar 2006 02:56:23 -0000 Received: from unknown (24.144.77.138) by smtpout09-04.prod.mesa1.secureserver.net (64.202.165.17) with ESMTP; 27 Mar 2006 02:56:23 -0000 Message-ID: <44275456.7040901@seclark.us> Date: Sun, 26 Mar 2006 21:56:22 -0500 From: Stephen Clark User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.16-22smp i686; en-US; m18) Gecko/20010110 Netscape6/6.5 X-Accept-Language: en-us, en MIME-Version: 1.0 To: stable@freebsd.org Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: 4.9-4.11 receive network stack lockup X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Stephen.Clark@seclark.us List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Mar 2006 02:56:25 -0000 Hi List, I am benchmarking freebsd 4.9, (also tried 4.11), two systems using nttcp 1.47 from ports thru a 100mb switch with two realtek 10/100 nics. I have 50 gre tunnels going thru 50 vpn tunnels between the two machines as well as quagga/ospfd with all addresses as neighbors. Using the following script I occasionally get in a state on the sending machine where it can send data but not receive it. I have a console that I run tcpdump on and I see packets go out but none come back, where on the other machine I see the packets come an a response go back. Any ideas as to what could be happening? for ((i=1;i<51;i++ )); do nttcp -T -w48 -n 32768 10.1.1.$((i*2))& done TIA, Steve