From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: skb_warn_bad_offload related to IPv6 in 3.9.9+ Date: Thu, 11 Jul 2013 11:52:27 -0700 Message-ID: <51DEFEEB.1080408@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: netdev Return-path: Received: from mail.candelatech.com ([208.74.158.172]:33164 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754513Ab3GKSw2 (ORCPT ); Thu, 11 Jul 2013 14:52:28 -0400 Received: from [192.168.100.226] (firewall.candelatech.com [70.89.124.249]) (authenticated bits=0) by ns3.lanforge.com (8.14.2/8.14.2) with ESMTP id r6BIqRoI026328 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 11 Jul 2013 11:52:27 -0700 Sender: netdev-owner@vger.kernel.org List-ID: This kernel has local patches applied...but I don't think it has anything that would cause this.... The wanlink module is something we added. It is now GPL, but code is not upstream. I don't think it's in directly related to the splat though... Only saw one splat, and system remains stable as far as we can tell. ------------[ cut here ]------------ WARNING: at /home/greearb/git/linux-3.9.dev.y/net/core/dev.c:2179 skb_warn_bad_offload+0xc2/0xcb() Hardware name: X7DBU e1000e: caps=(0x00000000700003a9, 0x0000000000000000) len=2942 data_len=1428 gso_size=1428 gso_type=16 ip_summed=1 Modules linked in: iptable_raw xt_CT bridge tcp_lp veth nls_utf8 cifs 8021q garp stp mrp llc nf_nat_ipv4 nf_nat fuse macvlan wanlink(O) pktgen nfsv3 nfs_acl nfsv4 auth_rpcgss nfs fscache lockd sunrpc w83793 w83627hf hwmon_vid coretemp i5k_amb mperf kvm_intel i5000_edac edac_core iTCO_wdt ioatdma gpio_ich shpchp iTCO_vendor_support e1000e lpc_ich kvm ptp dca pps_core i2c_i801 microcode pcspkr uinput ipv6 floppy radeon i2c_algo_bit hwmon drm_kms_helper ttm drm i2c_core [last unloaded: iptable_nat] Pid: 1587, comm: kwanlink/0 Tainted: G C O 3.9.9+ #104 Call Trace: [] warn_slowpath_common+0x85/0x9f [] warn_slowpath_fmt+0x46/0x48 [] skb_warn_bad_offload+0xc2/0xcb [] __skb_gso_segment+0x34/0xa2 [] dev_hard_start_xmit+0x1c3/0x3b8 [] sch_direct_xmit+0x75/0x154 [] try_dev_queue_xmit+0x253/0x493 [] dev_queue_xmit+0x10/0x12 [] ip6_finish_output2+0x2cf/0x339 [ipv6] [] ip6_finish_output+0x9e/0xa3 [ipv6] [] ? __ipv6_neigh_lookup_noref+0x9a/0x9a [ipv6] [] ip6_output+0x8b/0x93 [ipv6] [] ? ip6_pol_route+0x398/0x398 [ipv6] [] dst_output+0xf/0x11 [ipv6] [] ip6_forward_finish+0x9/0xb [ipv6] [] NF_HOOK.clone.0+0x30/0x35 [ipv6] [] ip6_forward+0x6b7/0x732 [ipv6] [] ? ip6_route_input+0xaa/0xb5 [ipv6] [] ? ipv6_is_mld+0x75/0x75 [ipv6] [] ip6_rcv_finish+0xa0/0xa4 [ipv6] [] NF_HOOK.clone.1+0x4c/0x53 [ipv6] [] ipv6_rcv+0x309/0x342 [ipv6] [] __netif_receive_skb_core+0x4e7/0x558 [] __netif_receive_skb+0x4e/0x5e [] process_backlog+0xfb/0x1dc [] net_rx_action+0xc2/0x267 [] ? ktime_get+0x4a/0x84 [] __do_softirq+0x114/0x254 [] call_softirq+0x1c/0x30 [] do_softirq+0x46/0x83 [] _local_bh_enable_ip+0x7a/0x9b [] local_bh_enable_ip+0xe/0x10 [] _raw_spin_unlock_bh+0x24/0x26 [] wle_tx_pkts+0x85a/0xe8f [wanlink] [] ? schedule_hrtimeout_range_clock+0xe1/0x108 [] do_task+0xa4/0x225 [wanlink] [] wl_thread_task+0x147/0x1ed [wanlink] [] ? do_task+0x225/0x225 [wanlink] [] kthread+0xb5/0xbd [] ? kthread_freezable_should_stop+0x60/0x60 [] ret_from_fork+0x7c/0xb0 [] ? kthread_freezable_should_stop+0x60/0x60 ---[ end trace d5734e2ef6e4f61a ]--- -- Ben Greear Candela Technologies Inc http://www.candelatech.com