[ 116.273958] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. [ 116.273963] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. [ 168.957827] rcu: INFO: rcu_preempt self-detected stall on CPU [ 168.957835] rcu: 6-....: (1 GPs behind) idle=a364/1/0x4000000000000004 softirq=13024/13024 fqs=911 [ 168.957840] rcu: hardirqs softirqs csw/system [ 168.957841] rcu: number: 11 0 0 [ 168.957843] rcu: cputime: 0 10490 0 ==> 10490(ms) [ 168.957845] rcu: (t=2100 jiffies g=9561 q=740302 ncpus=12) [ 168.957849] CPU: 6 PID: 0 Comm: swapper/6 Tainted: G T 6.4.0-gentoo #1 [ 168.957851] Hardware name: Dell Inc. PowerEdge R620/0VV3F2, BIOS 2.9.0 12/06/2019 [ 168.957853] RIP: 0010:wg_packet_receive+0x789/0x860 [wireguard] [ 168.957869] Code: 00 48 d3 e2 48 f7 da 48 23 15 f3 c7 34 cf 74 05 f3 48 0f bc c2 31 d2 f7 35 c4 c9 34 cf 89 d0 49 89 c4 48 0f a3 05 d7 c7 34 cf <0f> 82 9d fc ff ff eb b5 c7 85 40 01 00 00 00 00 00 00 e9 2f fd ff [ 168.957871] RSP: 0018:ffffb8890036cb48 EFLAGS: 00000246 [ 168.957874] RAX: 0000000000000010 RBX: ffff9f7d8acb0900 RCX: 0000000000000011 [ 168.957875] RDX: 0000000000000010 RSI: 0000000000000001 RDI: ffff9f7daab09e60 [ 168.957876] RBP: ffff9f7d8536d900 R08: 000000000000000e R09: 0000000000000008 [ 168.957878] R10: ffffffff8ff69740 R11: 000000000000def7 R12: 0000000000000010 [ 168.957879] R13: ffff9f7d8bde2600 R14: ffff9f7d838740ce R15: ffffb8890036ccc8 [ 168.957881] FS: 0000000000000000(0000) GS:ffff9f887f380000(0000) knlGS:0000000000000000 [ 168.957882] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.957884] CR2: 00007f9cf39636dc CR3: 00000007e662a001 CR4: 00000000001706e0 [ 168.957886] Call Trace: [ 168.957889] [ 168.957891] ? rcu_dump_cpu_stacks+0xea/0x170 [ 168.957896] ? rcu_sched_clock_irq+0x500/0x1010 [ 168.957900] ? remove_entity_load_avg+0x2e/0x70 [ 168.957904] ? __smp_call_single_queue+0x45/0x140 [ 168.957908] ? perf_event_task_tick+0x42/0x70 [ 168.957911] ? scheduler_tick+0xf8/0x2a0 [ 168.957914] ? update_process_times+0x57/0x90 [ 168.957918] ? tick_sched_timer+0xb9/0xe0 [ 168.957922] ? __pfx_tick_sched_timer+0x10/0x10 [ 168.957925] ? __hrtimer_run_queues+0x12b/0x2d0 [ 168.957928] ? hrtimer_interrupt+0xf4/0x230 [ 168.957932] ? __sysvec_apic_timer_interrupt+0x62/0x140 [ 168.957935] ? sysvec_apic_timer_interrupt+0x35/0x90 [ 168.957940] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 168.957944] ? wg_packet_receive+0x789/0x860 [wireguard] [ 168.957953] ? wg_packet_receive+0x40d/0x860 [wireguard] [ 168.957961] ? __udp4_lib_rcv+0x3fd/0xad0 [ 168.957966] ? __pfx_wg_receive+0x10/0x10 [wireguard] [ 168.957974] wg_receive+0x25/0x40 [wireguard] [ 168.957983] udp_queue_rcv_one_skb+0x3bf/0x5a0 [ 168.957987] udp_unicast_rcv_skb+0x76/0x90 [ 168.957990] ip_protocol_deliver_rcu+0x120/0x2f0 [ 168.957995] ip_local_deliver_finish+0x7a/0xa0 [ 168.957999] ip_sublist_rcv_finish+0x64/0x70 [ 168.958002] ip_sublist_rcv+0x167/0x1a0 [ 168.958006] ? bond_handle_frame+0x58/0x250 [bonding] [ 168.958021] ? __pfx_ip_rcv_finish+0x10/0x10 [ 168.958024] ip_list_rcv+0xff/0x130 [ 168.958028] __netif_receive_skb_list_core+0x228/0x250 [ 168.958033] netif_receive_skb_list_internal+0x1c9/0x2f0 [ 168.958036] napi_complete_done+0x6e/0x180 [ 168.958040] igb_poll+0x8d2/0x1450 [igb] [ 168.958057] __napi_poll+0x2b/0x1c0 [ 168.958060] net_rx_action+0x138/0x280 [ 168.958062] ? __napi_schedule+0x7a/0x80 [ 168.958067] __do_softirq+0xd8/0x2c9 [ 168.958071] common_interrupt+0x82/0xa0 [ 168.958074] [ 168.958075] [ 168.958076] asm_common_interrupt+0x22/0x40 [ 168.958078] RIP: 0010:cpuidle_enter_state+0xcc/0x440 [ 168.958082] Code: ff ff 8b 53 04 49 89 c5 8b 05 88 27 bd 00 85 c0 0f 8f e8 02 00 00 31 ff e8 81 c8 52 ff 45 84 ff 0f 85 f8 01 00 00 fb 45 85 f6 <0f> 88 2f 01 00 00 48 8b 04 24 49 63 ce 4c 89 ea 48 6b f1 68 48 29 [ 168.958084] RSP: 0018:ffffb889000e3ea0 EFLAGS: 00000202 [ 168.958086] RAX: ffff9f887f3aaac0 RBX: ffffd888ff380278 RCX: 0000000000000000 [ 168.958087] RDX: 0000000000000006 RSI: 0000000000000002 RDI: 0000000000000000 [ 168.958089] RBP: 0000000000000001 R08: fffffdf9c372c188 R09: 000000003cf3d124 [ 168.958090] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8f7a0320 [ 168.958091] R13: 0000002272d2148d R14: 0000000000000001 R15: 0000000000000000 [ 168.958094] cpuidle_enter+0x2f/0x40 [ 168.958099] do_idle+0xe7/0x190 [ 168.958101] cpu_startup_entry+0x19/0x20 [ 168.958104] start_secondary+0xe8/0xf0 [ 168.958108] secondary_startup_64_no_verify+0x106/0x10b [ 168.958113]