From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Natalie Protasevich" Subject: An ioctl to delete an ipv6 tunnel leads to a kernel panic Date: Mon, 11 Feb 2008 12:49:12 -0800 Message-ID: <32209efe0802111249x16a6bbe0l4c152b3cf3aa0470@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "Andrew Morton" To: "David Miller" , netdev@vger.kernel.org Return-path: Received: from fg-out-1718.google.com ([72.14.220.159]:15586 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751315AbYBKUtT (ORCPT ); Mon, 11 Feb 2008 15:49:19 -0500 Received: by fg-out-1718.google.com with SMTP id e21so3911708fga.17 for ; Mon, 11 Feb 2008 12:49:17 -0800 (PST) Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Hello, This bug was reported to bugzilla.kernel.org: http://bugzilla.kernel.org/show_bug.cgi?id=8895 Hardware Environment: user mode linux and vmware Software Environment: an evolution of mip6d (ip mobility daemon) Problem Description: The mip6d HA was modified to make a redondancy evolution, when an HA is interrupted, the other takes over, this leads to some creation/deletion of routes and tunnels. Note: The HA ip address known by the mobile (MR) stays the same, the slave HA takes it with an override neighbor advertisement message. So the tunnel between the mobile router and the HA(s) keep the same end adresses. The problem occurs when a Ctrl C is done on the master HA, the slave takes over but sometimes, the master gets a kernel panic. Possible reason for this failure was identified and tested by the submitter and several other reporters that ran into the same problem. Can the patch be reviewed and pushed upstream if accepted (if the problem hasn't been addressed already)? Thanks, --Natalie