Getting it all the time:
[Apr13 04:28] kino6_0: hw csum failure [ +0.003777] CPU: 18 PID: 0 Comm: swapper/18 Tainted: P OE 4.15.0-58-generic #64-Ubuntu [ +0.000003] Hardware name: GIGABYTE G291-281-00/MG51-G21-00, BIOS R06 11/19/2019 [ +0.000001] Call Trace: [ +0.000003] <IRQ> [ +0.000010] dump_stack+0x63/0x8b [ +0.000008] netdev_rx_csum_fault+0x38/0x40 [ +0.000003] __skb_checksum_complete+0xbc/0xd0 [ +0.000005] nf_ip_checksum+0xc3/0xf0 [ +0.000017] tcp_error+0x162/0x1c0 [nf_conntrack] [ +0.000007] ? kfree_skbmem+0x5f/0x70 [ +0.000004] ? consume_skb+0x34/0x90 [ +0.000011] nf_conntrack_in+0x14f/0x500 [nf_conntrack] [ +0.000009] ? csum_partial_ext+0x9/0x10 [ +0.000004] ? __skb_checksum+0x6b/0x300 [ +0.000006] ipv4_conntrack_in+0x1c/0x20 [nf_conntrack_ipv4] [ +0.000005] nf_hook_slow+0x48/0xc0 [ +0.000004] ? skb_send_sock+0x50/0x50 [ +0.000005] ip_rcv+0x2fa/0x360 [ +0.000003] ? inet_del_offload+0x40/0x40 [ +0.000004] __netif_receive_skb_core+0x432/0xb40 [ +0.000004] ? tcp4_gro_receive+0x137/0x1a0 [ +0.000003] __netif_receive_skb+0x18/0x60 [ +0.000003] ? __netif_receive_skb+0x18/0x60 [ +0.000004] netif_receive_skb_internal+0x45/0xe0 [ +0.000003] napi_gro_receive+0xc5/0xf0 [ +0.000034] mlx5e_handle_rx_cqe_mpwrq+0x465/0x860 [mlx5_core] [ +0.000029] mlx5e_poll_rx_cq+0xd1/0x8b0 [mlx5_core] [ +0.000025] mlx5e_napi_poll+0x9d/0x290 [mlx5_core] [ +0.000004] net_rx_action+0x140/0x3a0 [ +0.000006] __do_softirq+0xe4/0x2d4 [ +0.000006] irq_exit+0xc5/0xd0 [ +0.000004] do_IRQ+0x8a/0xe0 [ +0.000003] common_interrupt+0x8c/0x8c [ +0.000002] </IRQ> [ +0.000005] RIP: 0010:cpuidle_enter_state+0xa7/0x2f0 [ +0.000005] RSP: 0018:ffffa278002b3e68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffdd [ +0.000004] RAX: ffff970ebeea2840 RBX: 0008672cdbad1064 RCX: 000000000000001f [ +0.000002] RDX: 0008672cdbad1064 RSI: fffff3a434de6285 RDI: 0000000000000000 [ +0.000002] RBP: ffffa278002b3ea8 R08: 0000000000000004 R09: 0000000000022080 [ +0.000002] R10: ffffa278002b3e38 R11: 00137021632d21b0 R12: ffffc277ff683298 [ +0.000001] R13: 0000000000000003 R14: ffffffffaa172e78 R15: 0000000000000000 [ +0.000005] ? cpuidle_enter_state+0x97/0x2f0 [ +0.000003] cpuidle_enter+0x17/0x20 [ +0.000005] call_cpuidle+0x23/0x40 [ +0.000004] do_idle+0x18c/0x1f0 [ +0.000005] cpu_startup_entry+0x73/0x80 [ +0.000004] start_secondary+0x1ab/0x200 [ +0.000005] secondary_startup_64+0xa5/0xb0
Getting it all the time:
[Apr13 04:28] kino6_0: hw csum failure 00/MG51- G21-00, BIOS R06 11/19/2019 0x63/0x8b rx_csum_ fault+0x38/ 0x40 complete+ 0xbc/0xd0 0xc3/0xf0 0x162/0x1c0 [nf_conntrack] 0x5f/0x70 skb+0x34/ 0x90 in+0x14f/ 0x500 [nf_conntrack] ext+0x9/ 0x10 0x6b/0x300 in+0x1c/ 0x20 [nf_conntrack_ipv4] slow+0x48/ 0xc0 sock+0x50/ 0x50 offload+ 0x40/0x40 receive_ skb_core+ 0x432/0xb40 receive+ 0x137/0x1a0 receive_ skb+0x18/ 0x60 receive_ skb+0x18/ 0x60 skb_internal+ 0x45/0xe0 receive+ 0xc5/0xf0 rx_cqe_ mpwrq+0x465/ 0x860 [mlx5_core] rx_cq+0xd1/ 0x8b0 [mlx5_core] poll+0x9d/ 0x290 [mlx5_core] action+ 0x140/0x3a0 0xe4/0x2d4 interrupt+ 0x8c/0x8c enter_state+ 0xa7/0x2f0 2b3e68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffdd enter_state+ 0x97/0x2f0 enter+0x17/ 0x20 0x23/0x40 entry+0x73/ 0x80 +0x1ab/ 0x200 startup_ 64+0xa5/ 0xb0
[ +0.003777] CPU: 18 PID: 0 Comm: swapper/18 Tainted: P OE 4.15.0-58-generic #64-Ubuntu
[ +0.000003] Hardware name: GIGABYTE G291-281-
[ +0.000001] Call Trace:
[ +0.000003] <IRQ>
[ +0.000010] dump_stack+
[ +0.000008] netdev_
[ +0.000003] __skb_checksum_
[ +0.000005] nf_ip_checksum+
[ +0.000017] tcp_error+
[ +0.000007] ? kfree_skbmem+
[ +0.000004] ? consume_
[ +0.000011] nf_conntrack_
[ +0.000009] ? csum_partial_
[ +0.000004] ? __skb_checksum+
[ +0.000006] ipv4_conntrack_
[ +0.000005] nf_hook_
[ +0.000004] ? skb_send_
[ +0.000005] ip_rcv+0x2fa/0x360
[ +0.000003] ? inet_del_
[ +0.000004] __netif_
[ +0.000004] ? tcp4_gro_
[ +0.000003] __netif_
[ +0.000003] ? __netif_
[ +0.000004] netif_receive_
[ +0.000003] napi_gro_
[ +0.000034] mlx5e_handle_
[ +0.000029] mlx5e_poll_
[ +0.000025] mlx5e_napi_
[ +0.000004] net_rx_
[ +0.000006] __do_softirq+
[ +0.000006] irq_exit+0xc5/0xd0
[ +0.000004] do_IRQ+0x8a/0xe0
[ +0.000003] common_
[ +0.000002] </IRQ>
[ +0.000005] RIP: 0010:cpuidle_
[ +0.000005] RSP: 0018:ffffa27800
[ +0.000004] RAX: ffff970ebeea2840 RBX: 0008672cdbad1064 RCX: 000000000000001f
[ +0.000002] RDX: 0008672cdbad1064 RSI: fffff3a434de6285 RDI: 0000000000000000
[ +0.000002] RBP: ffffa278002b3ea8 R08: 0000000000000004 R09: 0000000000022080
[ +0.000002] R10: ffffa278002b3e38 R11: 00137021632d21b0 R12: ffffc277ff683298
[ +0.000001] R13: 0000000000000003 R14: ffffffffaa172e78 R15: 0000000000000000
[ +0.000005] ? cpuidle_
[ +0.000003] cpuidle_
[ +0.000005] call_cpuidle+
[ +0.000004] do_idle+0x18c/0x1f0
[ +0.000005] cpu_startup_
[ +0.000004] start_secondary
[ +0.000005] secondary_