From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752774AbbJEN3N (ORCPT ); Mon, 5 Oct 2015 09:29:13 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:40079 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751744AbbJEN3M (ORCPT ); Mon, 5 Oct 2015 09:29:12 -0400 Date: Mon, 05 Oct 2015 06:44:51 -0700 (PDT) Message-Id: <20151005.064451.2162263446408087981.davem@davemloft.net> To: khlebnikov@yandex-team.ru Cc: dev@openvswitch.org, pshelar@nicira.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, vbabka@suse.cz, linux-mm@kvack.org Subject: Re: [PATCH] ovs: do not allocate memory from offline numa node From: David Miller In-Reply-To: <20151002101822.12499.27658.stgit@buzz> References: <20151002101822.12499.27658.stgit@buzz> X-Mailer: Mew version 6.4 on Emacs 23.4 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 05 Oct 2015 06:29:12 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Konstantin Khlebnikov Date: Fri, 02 Oct 2015 13:18:22 +0300 > When openvswitch tries allocate memory from offline numa node 0: > stats = kmem_cache_alloc_node(flow_stats_cache, GFP_KERNEL | __GFP_ZERO, 0) > It catches VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES || !node_online(nid)) > [ replaced with VM_WARN_ON(!node_online(nid)) recently ] in linux/gfp.h > This patch disables numa affinity in this case. > > Signed-off-by: Konstantin Khlebnikov Applied, but this should probably use NUMA_NO_NODE unconditionally.