From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262752AbTHUPGq (ORCPT ); Thu, 21 Aug 2003 11:06:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262763AbTHUPGq (ORCPT ); Thu, 21 Aug 2003 11:06:46 -0400 Received: from obsidian.spiritone.com ([216.99.193.137]:47037 "EHLO obsidian.spiritone.com") by vger.kernel.org with ESMTP id S262752AbTHUPGo (ORCPT ); Thu, 21 Aug 2003 11:06:44 -0400 Date: Thu, 21 Aug 2003 08:06:11 -0700 From: "Martin J. Bligh" To: linux-kernel cc: michal-bugzilla@logix.cz Subject: [Bug 1130] New: GRE tunnels freeze kernel Message-ID: <6570000.1061478371@[10.10.2.4]> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org http://bugme.osdl.org/show_bug.cgi?id=1130 Summary: GRE tunnels freeze kernel Kernel Version: 2.6.0-test2, 2.6.0-test3 Status: NEW Severity: high Owner: bugme-janitors@lists.osdl.org Submitter: michal-bugzilla@logix.cz Distribution: SuSE Linux 8.2 Hardware Environment: x86 Software Environment: gcc-3.3 used to compile kernel. Problem Description: Incoming packet to the GRE tunnel interface freezes the kernel. Steps to reproduce: On a 2.6.0-test system create a tunnel for instance with these steps: On 10.0.0.1: modprobe ip_gre ip tunnel add gre1 mode gre local 10.0.0.1 remote 10.0.0.2 ttl 64 ip link set gre1 up ip addr add 172.16.0.1/24 dev gre1 On a non-2.6.0 10.0.0.2: modprobe ip_gre ip tunnel add gre1 mode gre local 10.0.0.2 remote 10.0.0.1 ttl 64 ip link set gre1 up ip addr add 172.16.0.2/24 dev gre1 Now ping the 2.6.0 system: ping -c1 172.16.0.1 Upon receiving the packet the box foreezes. No Oops but neither + console switching nor NumLock worked anymore. (Don't know about SysRq).