Comment 1 for bug 1705447

We noticed the same kernel warning with the latest LTS kernel:

[ 159.617976] ------------[ cut here ]------------
[ 159.617987] WARNING: CPU: 3 PID: 5436 at /build/linux-Hlembm/linux-4.4.0/net/core/dev.c:2444 skb_warn_bad_offload+0xd1/0x120()
[ 159.617990] docker_gwbridge: caps=(0x000000801fdb78e9, 0x0000000000000000) len=2103 data_len=1975 gso_size=1448 gso_type=5 ip_summed=1
[ 159.617991] Modules linked in: ip_vs_rr xt_ipvs ip_vs xt_nat xt_tcpudp veth tcp_diag udp_diag inet_diag binfmt_misc vxlan ip6_udp_tunnel udp_tunnel iptable_mangle xt_mark ipt_MASQUERADE nf_nat_masquerade_ipv4 xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables xt_conntrack x_tables nf_nat nf_conntrack br_netfilter bridge stp llc overlay ppdev joydev input_leds serio_raw parport_pc parport i2c_piix4 8250_fintek mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
[ 159.618043] aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse virtio_scsi pata_acpi floppy
[ 159.618053] CPU: 3 PID: 5436 Comm: java Tainted: G W 4.4.0-75-generic #96-Ubuntu
[ 159.618054] Hardware name: Nutanix AHV, BIOS seabios-1.7.5-11.el6 04/01/2014
[ 159.618056] 0000000000000286 0000000021eefd21 ffff88042d6c3870 ffffffff813f8493
[ 159.618058] ffff88042d6c38b8 ffffffff81d6e7b0 ffff88042d6c38a8 ffffffff81081302
[ 159.618061] ffff880395dbf500 ffff88042a1f0000 0000000000000005 ffff880395dbf500
[ 159.618063] Call Trace:
[ 159.618065] <IRQ> [<ffffffff813f8493>] dump_stack+0x63/0x90
[ 159.618075] [<ffffffff81081302>] warn_slowpath_common+0x82/0xc0
[ 159.618077] [<ffffffff8108139c>] warn_slowpath_fmt+0x5c/0x80
[ 159.618081] [<ffffffff813fe562>] ? ___ratelimit+0xa2/0xe0
[ 159.618082] [<ffffffff8172ec31>] skb_warn_bad_offload+0xd1/0x120
[ 159.618085] [<ffffffff817322ce>] __skb_gso_segment+0x7e/0xd0
[ 159.618087] [<ffffffff8173267d>] validate_xmit_skb.isra.97.part.98+0x10d/0x2b0
[ 159.618089] [<ffffffff817332b2>] __dev_queue_xmit+0x582/0x590
[ 159.618091] [<ffffffff817332d0>] dev_queue_xmit+0x10/0x20
[ 159.618094] [<ffffffff8173c568>] neigh_resolve_output+0x118/0x1c0
[ 159.618099] [<ffffffff81772b56>] ip_finish_output2+0x146/0x380
[ 159.618104] [<ffffffffc03e023d>] ? ipv4_confirm+0x7d/0x100 [nf_conntrack_ipv4]
[ 159.618106] [<ffffffff81773af6>] ip_finish_output+0x136/0x1f0
[ 159.618109] [<ffffffff817671b3>] ? nf_hook_slow+0x73/0xd0
[ 159.618111] [<ffffffff817744fe>] ip_output+0x6e/0xe0
[ 159.618114] [<ffffffff817739c0>] ? __ip_flush_pending_frames.isra.39+0x90/0x90
[ 159.618116] [<ffffffff81770143>] ip_forward_finish+0x43/0x70
[ 159.618117] [<ffffffff81770509>] ip_forward+0x399/0x480
[ 159.618119] [<ffffffff81770100>] ? ip_frag_mem+0x50/0x50
[ 159.618121] [<ffffffff8176e192>] ip_rcv_finish+0x92/0x320
[ 159.618123] [<ffffffff8176eac1>] ip_rcv+0x291/0x3a0
[ 159.618125] [<ffffffff8176e100>] ? inet_del_offload+0x40/0x40
[ 159.618126] [<ffffffff817307a4>] __netif_receive_skb_core+0x704/0xa60
[ 159.618129] [<ffffffff8172185a>] ? __build_skb+0x2a/0xe0
[ 159.618131] [<ffffffff81730b18>] __netif_receive_skb+0x18/0x60
[ 159.618132] [<ffffffff81730b92>] netif_receive_skb_internal+0x32/0xa0
[ 159.618134] [<ffffffff81731813>] napi_gro_receive+0xc3/0x120
[ 159.618137] [<ffffffff81604694>] virtnet_receive+0x4a4/0x8f0
[ 159.618139] [<ffffffff81604afd>] virtnet_poll+0x1d/0x80
[ 159.618140] [<ffffffff8173105e>] net_rx_action+0x21e/0x360
[ 159.618144] [<ffffffff81601ed3>] ? skb_recv_done+0x43/0x50
[ 159.618147] [<ffffffff81085de1>] __do_softirq+0x101/0x290
[ 159.618149] [<ffffffff810860e3>] irq_exit+0xa3/0xb0
[ 159.618153] [<ffffffff8183e364>] do_IRQ+0x54/0xd0
[ 159.618157] [<ffffffff8183c442>] common_interrupt+0x82/0x82
[ 159.618158] <EOI>
[ 159.618159] ---[ end trace 579561cac9470a51 ]---