From owner-freebsd-bugs@FreeBSD.ORG Thu Aug 19 13:10:04 2010 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3F12C10656A3 for ; Thu, 19 Aug 2010 13:10:04 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id F2FE48FC15 for ; Thu, 19 Aug 2010 13:10:03 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id o7JDA3NY034197 for ; Thu, 19 Aug 2010 13:10:03 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id o7JDA3p8034196; Thu, 19 Aug 2010 13:10:03 GMT (envelope-from gnats) Resent-Date: Thu, 19 Aug 2010 13:10:03 GMT Resent-Message-Id: <201008191310.o7JDA3p8034196@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Pete French Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1444410656C7 for ; Thu, 19 Aug 2010 13:01:00 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from constantine.ticketswitch.com (constantine.ticketswitch.com [IPv6:2002:57e0:1d4e:1::3]) by mx1.freebsd.org (Postfix) with ESMTP id CD0778FC27 for ; Thu, 19 Aug 2010 13:00:59 +0000 (UTC) Received: from dilbert.rattatosk ([10.64.50.6] helo=dilbert.ticketswitch.com) by constantine.ticketswitch.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1Om4jq-000Lqv-No for FreeBSD-gnats-submit@freebsd.org; Thu, 19 Aug 2010 14:00:58 +0100 Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.71 (FreeBSD)) (envelope-from ) id 1Om4jq-00074C-Mz for FreeBSD-gnats-submit@freebsd.org; Thu, 19 Aug 2010 14:00:58 +0100 Message-Id: Date: Thu, 19 Aug 2010 14:00:58 +0100 From: Pete French To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/149804: ICMP redirect on causes "panic: rtqkill route really not free" X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Pete French List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Aug 2010 13:10:04 -0000 >Number: 149804 >Category: kern >Synopsis: ICMP redirect on causes "panic: rtqkill route really not free" >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Aug 19 13:10:03 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Pete French >Release: FreeBSD 8.1-STABLE amd64 >Organization: Ticket Switch Ltd >Environment: System: FreeBSD dilbert.rattatosk 8.1-STABLE FreeBSD 8.1-STABLE #1: Tue Aug 17 12:30:13 BST 2010 petefrench@dilbert.rattatosk:/usr/obj/usr/src/sys/GENERIC amd64 >Description: Running 8.1 in an environment with multiple routers that issue ICMP redirects can cause the system to panic with the message given in the subject line. >How-To-Repeat: Install an 8.1 machine intp an envir0onment as above - I have not found a reliable way to reporduce it, but in our case it crashes within a few days. >Fix: setting net.inet.icmp.drop_redirect=1 will prevent this. There is also a patch from Xin LI which appears to fix the problem (or at least mitigate it to the point where we havent seen it since it was applied) >Release-Note: >Audit-Trail: >Unformatted: