From owner-freebsd-net@FreeBSD.ORG Sat Feb 11 23:21:13 2006 Return-Path: X-Original-To: net@FreeBSD.org Delivered-To: freebsd-net@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C3B6C16A420 for ; Sat, 11 Feb 2006 23:21:13 +0000 (GMT) (envelope-from dwmalone@maths.tcd.ie) Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [134.226.81.11]) by mx1.FreeBSD.org (Postfix) with SMTP id 8519043D72 for ; Sat, 11 Feb 2006 23:21:11 +0000 (GMT) (envelope-from dwmalone@maths.tcd.ie) Received: from walton.maths.tcd.ie ([134.226.81.10] helo=walton.maths.tcd.ie) by salmon.maths.tcd.ie with SMTP id ; 11 Feb 2006 23:21:11 +0000 (GMT) Date: Sat, 11 Feb 2006 23:21:11 +0000 From: David Malone To: Kris Kennaway Message-ID: <20060211232111.GA48677@walton.maths.tcd.ie> References: <20060116004438.GA27901@xor.obsecurity.org> <20060207054502.GA18560@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060207054502.GA18560@xor.obsecurity.org> User-Agent: Mutt/1.5.6i Sender: dwmalone@maths.tcd.ie Cc: net@FreeBSD.org Subject: Re: Changing time causes ipv6 panics X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Feb 2006 23:21:13 -0000 On Tue, Feb 07, 2006 at 12:45:02AM -0500, Kris Kennaway wrote: > Has anyone looked at this? This is on the TODO list for 6.1, so the > sooner it can be resolved the better. I wonder if a lot of these panics are related to races on the in6_ifaddr variable? Access to it is unsynchronised currently, and I think it has been causing various problems. See my followup to PR 93170. I'm trying to sort out some locking patches for it, I'll test them against your clock-setting test. David.