From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] ipv4: panic in leaf_walk_rcu due to stale node pointer Date: Wed, 03 Aug 2016 12:01:43 -0700 (PDT) Message-ID: <20160803.120143.377608139981878642.davem@davemloft.net> References: <1470233581-25728-1-git-send-email-dforster@brocade.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, alexander.duyck@gmail.com To: dforster@brocade.com Return-path: Received: from shards.monkeyblade.net ([184.105.139.130]:47246 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757059AbcHCTDK (ORCPT ); Wed, 3 Aug 2016 15:03:10 -0400 In-Reply-To: <1470233581-25728-1-git-send-email-dforster@brocade.com> Sender: netdev-owner@vger.kernel.org List-ID: From: David Forster Date: Wed, 3 Aug 2016 15:13:01 +0100 > Panic occurs when issuing "cat /proc/net/route" whilst > populating FIB with > 1M routes. > > Use of cached node pointer in fib_route_get_idx is unsafe. ... > Signed-off-by: Dave Forster Alexander, please review. Thanks.