From owner-freebsd-questions Mon Mar 17 9:48:16 2003 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 6FB4037B401 for ; Mon, 17 Mar 2003 09:48:15 -0800 (PST) Received: from smtp2.libero.it (smtp2.libero.it [193.70.192.52]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2FAE943F93 for ; Mon, 17 Mar 2003 09:48:14 -0800 (PST) (envelope-from ml.ventu@flashnet.it) Received: from soth.ventu (151.38.126.118) by smtp2.libero.it (6.7.015) id 3E48BA3400D21A01 for freebsd-questions@freebsd.org; Mon, 17 Mar 2003 18:48:12 +0100 Received: from mailer (xanatar.ventu [10.1.2.6]) by soth.ventu (8.12.6/8.12.6) with SMTP id h2HHo6Ku001382 for ; Mon, 17 Mar 2003 18:50:06 +0100 (CET) (envelope-from ml.ventu@flashnet.it) Message-Id: <200303171750.h2HHo6Ku001382@soth.ventu> To: freebsd-questions@freebsd.org X-Mailer: Post Road Mailer for OS/2 (Green Edition Ver 3.0) Date: Mon, 17 Mar 2003 18:50:05 EST From: Andrea Venturoli Reply-To: Andrea Venturoli Subject: bpf -> kernel panic Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello. I have a FreeBSD machine that tended to hang in the recent past. After a few tests I managed to clearly isolate one condition that causes this kernel panics. If I do a "tcpdump -l -i fxp0" I'm sure the machine will lock in less than 3 second. The same happens (in a more or less short time) if I run ntop, snort or any other thing that opens a bpf. There is a dhcp server running, which is isc version 3.0.1.r11_1 and, on startup, says: >Listening on BPF/fxp0/00:07:e9:0b:78:d9/192.168.101.0/24 >Sending on BPF/fxp0/00:07:e9:0b:78:d9/192.168.101.0/24 So, basically one bpf seems to work. A second one is, however, almost sure death: I didn't have the chance to write down the full exact message yet, but basically it's like "page fault while in kernel mode". uname -a gives: >FreeBSD xxx 4.7-RELEASE-p6 FreeBSD 4.7-RELEASE-p6 #1: Thu Feb 27 1 >2:40:24 CET 2003 root@xxx:/usr/src/sys/compile/XXX i386 Any hint on what I might try to solve this? Has anyone had this problem before? Any way to better debug this? bye & Thanks av. P.S. In case it matters, the machine has two fxp interfaces. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message