From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Ahern Subject: Re: [PATCH net-next] net: Fix vti use case with oif in dst lookups for IPv6 Date: Sun, 11 Oct 2015 12:01:30 -0600 Message-ID: <561AA3FA.7070001@cumulusnetworks.com> References: <1444055571-82546-1-git-send-email-dsa@cumulusnetworks.com> <20151009071710.GJ7701@secunet.com> <5617F908.8060807@cumulusnetworks.com> <561A64B4.5080301@cumulusnetworks.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: steffen.klassert@secunet.com, netdev@vger.kernel.org To: Hajime Tazaki Return-path: Received: from mail-pa0-f42.google.com ([209.85.220.42]:36829 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751432AbbJKSB2 (ORCPT ); Sun, 11 Oct 2015 14:01:28 -0400 Received: by pablk4 with SMTP id lk4so133190665pab.3 for ; Sun, 11 Oct 2015 11:01:28 -0700 (PDT) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On 10/11/15 8:24 AM, Hajime Tazaki wrote: > > I've faced this issue since the following patch was applied. > > commit 741a11d9e4103a8e1c590ef1280143fe654e4e33 > Author: David Ahern > Date: Mon Sep 28 10:12:13 2015 -0700 > > net: ipv6: Add RT6_LOOKUP_F_IFACE flag if oif is set > > I still couldn't spot which part (other than my posted call > graph) is broken and am not sure whether the xfrm change > affects or not (which I need to check the mip6 code again). Ok, this is a separate problem from what Steffen is hitting. > >> Can you apply this patch, and then run: >> >> perf record -e fib6:* -a -g >> perf script > > I'm using libos environment right now, so the perf trace > can't be used as it is. ok. Some path in raw6_sendmsg is setting fl6.flowi6_oif. Can you instrument it?