From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754115AbbCRXSJ (ORCPT ); Wed, 18 Mar 2015 19:18:09 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:38264 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751074AbbCRXSF (ORCPT ); Wed, 18 Mar 2015 19:18:05 -0400 Message-ID: <1426720677.8485.90.camel@fourier> Subject: Re: [PATCH][3.13.y-ckt][PATCH 0/1] Backport of mainline commit 4a46b24e for upstream 3.13.y-ckt. From: Kamal Mostafa To: Joseph Salisbury Cc: alexw@nicira.com, azhou@nicira.com, pshelar@nicira.com, davem@davemloft.net, netdev@vger.kernel.org, dev@openvswitch.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Date: Wed, 18 Mar 2015 16:17:57 -0700 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2015-02-27 at 15:19 -0500, Joseph Salisbury wrote: > A large number of 'failed to flow_del' error messages are being logged > in OpenStack deployments running the Ubuntu Trusty release with the > 3.13 kernel. This was fixed upstream in the datapath dkms module as > well as the 3.16 kernel. > > Commit 4a46b24e is the fix for this issue, and is in mainline as of > 3.16-rc6. However, commit 4a46b24e has a dependency on commit > 663efa36 for the define of rcu_dereference_ovsl. > > Commit 663efa36 is a clean cherry-pick in upstream 3.13.y-ckt. > However, 4a46b24e required a backport. Please consider including > mainline commit 663efa36 and the backported version of 4a46b24e in the > next v3.13.y-ckt release. > > The backport for upstream stable 3.14.y is different than for > 3.13.y-ckt and I'm not sure if this bug exists in upstream 3.14. I > can send that backport separately if needed. > I have queued these for 3.13-stable: 4a46b24* openvswitch: Use exact lookup for flow_get and flow_del. 663efa3 openvswitch: Silence RCU lockdep checks from flow lookup. *(your backport of) Thanks Joseph, -Kamal