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] [] dump_stack+0x63/0x90 [ 159.618075] [] warn_slowpath_common+0x82/0xc0 [ 159.618077] [] warn_slowpath_fmt+0x5c/0x80 [ 159.618081] [] ? ___ratelimit+0xa2/0xe0 [ 159.618082] [] skb_warn_bad_offload+0xd1/0x120 [ 159.618085] [] __skb_gso_segment+0x7e/0xd0 [ 159.618087] [] validate_xmit_skb.isra.97.part.98+0x10d/0x2b0 [ 159.618089] [] __dev_queue_xmit+0x582/0x590 [ 159.618091] [] dev_queue_xmit+0x10/0x20 [ 159.618094] [] neigh_resolve_output+0x118/0x1c0 [ 159.618099] [] ip_finish_output2+0x146/0x380 [ 159.618104] [] ? ipv4_confirm+0x7d/0x100 [nf_conntrack_ipv4] [ 159.618106] [] ip_finish_output+0x136/0x1f0 [ 159.618109] [] ? nf_hook_slow+0x73/0xd0 [ 159.618111] [] ip_output+0x6e/0xe0 [ 159.618114] [] ? __ip_flush_pending_frames.isra.39+0x90/0x90 [ 159.618116] [] ip_forward_finish+0x43/0x70 [ 159.618117] [] ip_forward+0x399/0x480 [ 159.618119] [] ? ip_frag_mem+0x50/0x50 [ 159.618121] [] ip_rcv_finish+0x92/0x320 [ 159.618123] [] ip_rcv+0x291/0x3a0 [ 159.618125] [] ? inet_del_offload+0x40/0x40 [ 159.618126] [] __netif_receive_skb_core+0x704/0xa60 [ 159.618129] [] ? __build_skb+0x2a/0xe0 [ 159.618131] [] __netif_receive_skb+0x18/0x60 [ 159.618132] [] netif_receive_skb_internal+0x32/0xa0 [ 159.618134] [] napi_gro_receive+0xc3/0x120 [ 159.618137] [] virtnet_receive+0x4a4/0x8f0 [ 159.618139] [] virtnet_poll+0x1d/0x80 [ 159.618140] [] net_rx_action+0x21e/0x360 [ 159.618144] [] ? skb_recv_done+0x43/0x50 [ 159.618147] [] __do_softirq+0x101/0x290 [ 159.618149] [] irq_exit+0xa3/0xb0 [ 159.618153] [] do_IRQ+0x54/0xd0 [ 159.618157] [] common_interrupt+0x82/0x82 [ 159.618158] [ 159.618159] ---[ end trace 579561cac9470a51 ]---