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Message-ID: <70ecf4f3-4ca0-bceb-00fc-2084a338b2fc@itcare.pl> Date: Tue, 30 Oct 2018 01:34:24 +0100 From: Paweł Staszewski <pstaszewski@...are.pl> To: Linux Kernel Network Developers <netdev@...r.kernel.org> Subject: Re: Latest net-next kernel 4.19.0+ W dniu 30.10.2018 o 01:11, Paweł Staszewski pisze: > Sorry not complete - followed by hw csum: > > [ 342.190831] vlan1490: hw csum failure > [ 342.190835] CPU: 52 PID: 0 Comm: swapper/52 Not tainted 4.19.0+ #1 > [ 342.190836] Call Trace: > [ 342.190839] <IRQ> > [ 342.190849] dump_stack+0x46/0x5b > [ 342.190856] __skb_checksum_complete+0x9a/0xa0 > [ 342.190859] tcp_v4_rcv+0xef/0x960 > [ 342.190864] ip_local_deliver_finish+0x49/0xd0 > [ 342.190866] ip_local_deliver+0x5e/0xe0 > [ 342.190869] ? ip_sublist_rcv_finish+0x50/0x50 > [ 342.190870] ip_rcv+0x41/0xc0 > [ 342.190874] __netif_receive_skb_one_core+0x4b/0x70 > [ 342.190877] netif_receive_skb_internal+0x2f/0xd0 > [ 342.190879] napi_gro_receive+0xb7/0xe0 > [ 342.190884] mlx5e_handle_rx_cqe+0x7a/0xd0 > [ 342.190886] mlx5e_poll_rx_cq+0xc6/0x930 > [ 342.190888] mlx5e_napi_poll+0xab/0xc90 > [ 342.190893] ? kmem_cache_free_bulk+0x1e4/0x280 > [ 342.190895] net_rx_action+0x1f1/0x320 > [ 342.190901] __do_softirq+0xec/0x2b7 > [ 342.190908] irq_exit+0x7b/0x80 > [ 342.190910] do_IRQ+0x45/0xc0 > [ 342.190912] common_interrupt+0xf/0xf > [ 342.190914] </IRQ> > [ 342.190916] RIP: 0010:mwait_idle+0x5f/0x1b0 > [ 342.190917] Code: a8 01 0f 85 3f 01 00 00 31 d2 65 48 8b 04 25 80 > 4c 01 00 48 89 d1 0f 01 c8 48 8b 00 a8 08 0f 85 40 01 00 00 31 c0 fb > 0f 01 c9 <65> 8b 2d 2a c9 6a 7e 0f 1f 44 00 00 65 48 8b 04 25 80 4c 01 > 00 f0 > [ 342.190918] RSP: 0018:ffffc900034e7eb8 EFLAGS: 00000246 ORIG_RAX: > ffffffffffffffdd > [ 342.190920] RAX: 0000000000000000 RBX: 0000000000000034 RCX: > 0000000000000000 > [ 342.190921] RDX: 0000000000000000 RSI: 0000000000000000 RDI: > 0000000000000000 > [ 342.190922] RBP: 0000000000000034 R08: 0000000000000057 R09: > ffff88086fa1fbc0 > [ 342.190923] R10: 0000000000000000 R11: 00000001000028cc R12: > ffff88086d180000 > [ 342.190923] R13: ffff88086d180000 R14: 0000000000000000 R15: > 0000000000000000 > [ 342.190929] do_idle+0x1a3/0x1c0 > [ 342.190931] cpu_startup_entry+0x14/0x20 > [ 342.190934] start_secondary+0x165/0x190 > [ 342.190939] secondary_startup_64+0xa4/0xb0 > > > W dniu 30.10.2018 o 01:10, Paweł Staszewski pisze: >> Hi >> >> >> Just checked in test lab latest kernel and have weird traces: >> >> [ 219.888673] CPU: 52 PID: 0 Comm: swapper/52 Not tainted 4.19.0+ #1 >> [ 219.888674] Call Trace: >> [ 219.888676] <IRQ> >> [ 219.888685] dump_stack+0x46/0x5b >> [ 219.888691] __skb_checksum_complete+0x9a/0xa0 >> [ 219.888694] tcp_v4_rcv+0xef/0x960 >> [ 219.888698] ip_local_deliver_finish+0x49/0xd0 >> [ 219.888700] ip_local_deliver+0x5e/0xe0 >> [ 219.888702] ? ip_sublist_rcv_finish+0x50/0x50 >> [ 219.888703] ip_rcv+0x41/0xc0 >> [ 219.888706] __netif_receive_skb_one_core+0x4b/0x70 >> [ 219.888708] netif_receive_skb_internal+0x2f/0xd0 >> [ 219.888710] napi_gro_receive+0xb7/0xe0 >> [ 219.888714] mlx5e_handle_rx_cqe+0x7a/0xd0 >> [ 219.888716] mlx5e_poll_rx_cq+0xc6/0x930 >> [ 219.888717] mlx5e_napi_poll+0xab/0xc90 >> [ 219.888722] ? enqueue_task_fair+0x286/0xc40 >> [ 219.888723] ? enqueue_task_fair+0x1d6/0xc40 >> [ 219.888725] net_rx_action+0x1f1/0x320 >> [ 219.888730] __do_softirq+0xec/0x2b7 >> [ 219.888736] irq_exit+0x7b/0x80 >> [ 219.888737] do_IRQ+0x45/0xc0 >> [ 219.888740] common_interrupt+0xf/0xf >> [ 219.888742] </IRQ> >> [ 219.888743] RIP: 0010:mwait_idle+0x5f/0x1b0 >> [ 219.888745] Code: a8 01 0f 85 3f 01 00 00 31 d2 65 48 8b 04 25 80 >> 4c 01 00 48 89 d1 0f 01 c8 48 8b 00 a8 08 0f 85 40 01 00 00 31 c0 fb >> 0f 01 c9 <65> 8b 2d 2a c9 6a 7e 0f 1f 44 00 00 65 48 8b 04 25 80 4c >> 01 00 f0 >> [ 219.888746] RSP: 0018:ffffc900034e7eb8 EFLAGS: 00000246 ORIG_RAX: >> ffffffffffffffde >> [ 219.888749] RAX: 0000000000000000 RBX: 0000000000000034 RCX: >> 0000000000000000 >> [ 219.888749] RDX: 0000000000000000 RSI: 0000000000000000 RDI: >> 0000000000000000 >> [ 219.888750] RBP: 0000000000000034 R08: 000000000000003b R09: >> ffff88086fa1fbc0 >> [ 219.888751] R10: 0000000000000000 R11: 00000000ffffb15d R12: >> ffff88086d180000 >> [ 219.888752] R13: ffff88086d180000 R14: 0000000000000000 R15: >> 0000000000000000 >> [ 219.888754] do_idle+0x1a3/0x1c0 >> [ 219.888757] cpu_startup_entry+0x14/0x20 >> [ 219.888760] start_secondary+0x165/0x190 >> > > Also some perf top attacked to this - 14G rx traffic on vlans (pktgen generated random destination ip's and forwarded by test server) PerfTop: 45296 irqs/sec kernel:99.3% exact: 0.0% [4000Hz cycles], (all, 56 CPUs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 7.43% [kernel] [k] mlx5e_skb_from_cqe_linear 5.17% [kernel] [k] mlx5e_sq_xmit 3.83% [kernel] [k] fib_table_lookup 3.41% [kernel] [k] irq_entries_start 2.91% [kernel] [k] build_skb 2.50% [kernel] [k] mlx5_eq_int 2.29% [kernel] [k] _raw_spin_lock 2.27% [kernel] [k] tasklet_action_common.isra.21 1.99% [kernel] [k] _raw_spin_lock_irqsave 1.91% [kernel] [k] memcpy_erms 1.77% [kernel] [k] __build_skb 1.70% [kernel] [k] vlan_do_receive 1.59% [kernel] [k] get_page_from_freelist 1.56% [kernel] [k] mlx5e_poll_tx_cq 1.53% [kernel] [k] __dev_queue_xmit 1.40% [kernel] [k] pfifo_fast_dequeue 1.37% [kernel] [k] dev_gro_receive 1.34% [kernel] [k] ipt_do_table 1.30% [kernel] [k] mlx5e_poll_rx_cq 1.28% [kernel] [k] mlx5e_post_rx_wqes 1.27% [kernel] [k] ip_finish_output2 1.09% [kernel] [k] inet_gro_receive 1.08% [kernel] [k] _raw_spin_lock_irq 1.04% [kernel] [k] __sched_text_start 0.99% [kernel] [k] tcp_gro_receive 0.98% [kernel] [k] find_busiest_group 0.97% [kernel] [k] __netif_receive_skb_core 0.85% [kernel] [k] ip_route_input_rcu 0.85% [kernel] [k] free_one_page 0.84% [kernel] [k] mlx5e_handle_rx_cqe 0.76% [kernel] [k] do_idle 0.72% [kernel] [k] mlx5e_xmit 0.71% [kernel] [k] cmd_exec 0.71% [kernel] [k] __page_pool_put_page 0.69% [kernel] [k] kmem_cache_alloc 0.68% [kernel] [k] mlx5_cmd_comp_handler 0.68% [kernel] [k] queued_spin_lock_slowpath 0.68% [kernel] [k] cmd_work_handler 0.68% [kernel] [k] pfifo_fast_enqueue 0.67% [kernel] [k] try_to_wake_up 0.66% [kernel] [k] _raw_spin_trylock 0.62% [kernel] [k] dev_hard_start_xmit 0.62% [kernel] [k] ip_forward 0.62% [kernel] [k] swiotlb_map_page 0.61% [kernel] [k] page_frag_free 0.60% [kernel] [k] mlx5e_build_rx_skb 0.60% [kernel] [k] skb_release_data 0.57% [kernel] [k] netif_skb_features 0.52% [kernel] [k] vlan_dev_hard_start_xmit 0.50% [kernel] [k] kmem_cache_free_bulk 0.49% [kernel] [k] enqueue_task_fair 0.49% [kernel] [k] validate_xmit_skb.isra.142 0.49% [kernel] [k] skb_gro_receive 0.49% [kernel] [k] __qdisc_run
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