From owner-freebsd-current@FreeBSD.ORG Tue Mar 9 03:52:19 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3D10216A4CE for ; Tue, 9 Mar 2004 03:52:19 -0800 (PST) Received: from tea.blinkenlights.nl (tea.blinkenlights.nl [62.58.162.229]) by mx1.FreeBSD.org (Postfix) with ESMTP id B653243D41 for ; Tue, 9 Mar 2004 03:52:18 -0800 (PST) (envelope-from sten@blinkenlights.nl) Received: by tea.blinkenlights.nl (Postfix, from userid 101) id 8B96B3AE; Tue, 9 Mar 2004 12:47:18 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by tea.blinkenlights.nl (Postfix) with ESMTP id 7EFCB18F for ; Tue, 9 Mar 2004 12:47:18 +0100 (CET) Date: Tue, 9 Mar 2004 12:47:18 +0100 (CET) From: Sten Spans To: freebsd-current@freebsd.org Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: fxp network problems on alpha X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Tue, 09 Mar 2004 11:52:19 -0000 I am experiencing a quite serious problems with the fxp interfaces in my alpha running 5.2.1 ( the problem also shows up with current ). The easiest way to trigger the problem is to run netperf (benchmarks/netperf). The interface dies almost immeadiately. towel# /usr/local/netperf/netperf -H bastard towel# towel# ping bastard PING bastard.snore.nl (62.250.7.5): 56 data bytes ping: sendto: No buffer space available ping: sendto: No buffer space available towel# netstat -m mbuf usage: GEN cache: 0/256 (in use/in pool) CPU #0 cache: 566/704 (in use/in pool) Total: 566/960 (in use/in pool) Mbuf cache high watermark: 512 Maximum possible: 65536 Allocated mbuf types: 360 mbufs allocated to data 206 mbufs allocated to packet headers 1% of mbuf map consumed mbuf cluster usage: GEN cache: 0/112 (in use/in pool) CPU #0 cache: 205/256 (in use/in pool) Total: 205/368 (in use/in pool) Cluster cache high watermark: 128 Maximum possible: 32768 1% of cluster map consumed 976 KBytes of wired memory reserved (56% in use) 0 requests for memory denied 0 requests for memory delayed 0 calls to protocol drain routines The problem also shows up with ipv6 netperf sessions on the other fxp in the box. The only way to get things working again is to down-up the interface. The machine has maxusers=512, and quite high mbuf settings, so simple resource problems should be quite unlikely. I don't know if this is an fxp or mbuf related problem, I however cannot reproduce the problem on an ds10 with dc interfaces. Any help/debugging hints would be appreciated. -- Sten Spans "There is a crack in everything, that's how the light gets in." Leonard Cohen - Anthem