From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Fw: [Bug 16183] New: sch_teql no longer works post 2.6.30 Date: Fri, 11 Jun 2010 09:08:35 -0700 Message-ID: <20100611090835.31b8436c@nehalam> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Eric Dumazet , David Miller Return-path: Received: from mail.vyatta.com ([76.74.103.46]:33807 "EHLO mail.vyatta.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751628Ab0FKQIm (ORCPT ); Fri, 11 Jun 2010 12:08:42 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Begin forwarded message: Date: Fri, 11 Jun 2010 15:56:44 GMT From: bugzilla-daemon@bugzilla.kernel.org To: shemminger@linux-foundation.org Subject: [Bug 16183] New: sch_teql no longer works post 2.6.30 https://bugzilla.kernel.org/show_bug.cgi?id=16183 Summary: sch_teql no longer works post 2.6.30 Product: Networking Version: 2.5 Kernel Version: 2.6.31 through 2.6.34 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: IPV4 AssignedTo: shemminger@linux-foundation.org ReportedBy: tom@compton.nu Regression: Yes Created an attachment (id=26729) --> (https://bugzilla.kernel.org/attachment.cgi?id=26729) Patch to fix sch_teql The sch_teql module, which can be used to load balance over a set of underlying interfaces, stopped working after 2.6.30 and has been broken in all kernels since then. The problem is that the transmit routine relies on being able to access the destination address in the skb in order to do ARP resolution once it has decided which underlying interface it is going to transmit through. In 2.6.31 the IFF_XMIT_DST_RELEASE flag was introduced, and set by default for all interfaces, which causes the destination address to be release before the transmit routine for the interface is called. The solution (implemented in the attached patch) is to clear that flag for teql interfaces. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. --