From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: [PATCH v2 2/2] ipv6: Warn users if maximum number of routes is reached. Date: Mon, 8 Nov 2010 14:33:48 -0800 Message-ID: <1289255628-9596-1-git-send-email-greearb@candelatech.com> Cc: Ben Greear To: netdev@vger.kernel.org Return-path: Received: from mail.candelatech.com ([208.74.158.172]:48648 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755793Ab0KHWdv (ORCPT ); Mon, 8 Nov 2010 17:33:51 -0500 Sender: netdev-owner@vger.kernel.org List-ID: This gives users at least some clue as to what the problem might be and how to go about fixing it. Signed-off-by: Ben Greear --- v1 -> v2: Put warning in correct place. :100644 100644 a275c6e... 9d9d0e9... M net/ipv6/route.c net/ipv6/route.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index a275c6e..9d9d0e9 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1941,8 +1941,12 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops); struct neighbour *neigh; - if (rt == NULL) + if (rt == NULL) { + if (net_ratelimit()) + pr_warning("IPv6: Maximum number of routes reached," + " consider increasing route/max_size.\n"); return ERR_PTR(-ENOMEM); + } dev_hold(net->loopback_dev); in6_dev_hold(idev); -- 1.6.2.5