Hi Kai-Heng,

Here is the (much longer) trace from that kernel.


Thanks!

kernel: ------------[ cut here ]------------
kernel: NETDEV WATCHDOG: enp5s0 (r8169): transmit queue 0 timed out
kernel: WARNING: CPU: 2 PID: 0 at net/sched/sch_generic.c:442 dev_watchdog+0x24c/0x250
kernel: Modules linked in: scsi_transport_iscsi binfmt_misc veth nft_masq xt_comment iptable_mangle iptable_nat bpfilter dummy xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp nft_compat nft_counter nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink rdma_ucm ib_uverbs rdma_cm iw_cm ib_cm ib_core overlay snd_hda_codec_realtek nls_iso8859>
kernel:  autofs4 btrfs blake2b_generic xor raid6_pq libcrc32c dm_crypt hid_logitech_hidpp hid_microsoft ff_memless hid_logitech_dj hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper i2c_piix4 r8169 nvme ahci i2c_nvidia_gpu xhci_pci realtek nvme_core libahci xhci_pci_renesas wmi gpio_amdpt gpio_generic
kernel: CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.10.0-051000rc2-generic #202011012330
kernel: Hardware name: Gigabyte Technology Co., Ltd. B450M DS3H/B450M DS3H-CF, BIOS F4 01/25/2019
kernel: RIP: 0010:dev_watchdog+0x24c/0x250
kernel: Code: 5a 94 fd ff eb ab 4c 89 ff c6 05 e2 58 4d 01 01 e8 99 4c fa ff 44 89 e9 4c 89 fe 48 c7 c7 48 35 48 97 48 89 c2 e8 2a 69 16 00 <0f> 0b eb 8c 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 ff 41 56 41 55
kernel: RSP: 0018:ffffa5e700210e90 EFLAGS: 00010286
kernel: RAX: 0000000000000000 RBX: ffff9a1800d12e00 RCX: 0000000000000000
kernel: RDX: ffff9a1b0eea8ca0 RSI: ffff9a1b0ee98980 RDI: 0000000000000300
kernel: RBP: ffffa5e700210ec0 R08: 0000000000000000 R09: ffffa5e700210c70
kernel: R10: ffffa5e700210c68 R11: ffffffff97b52ca8 R12: ffff9a1800d12e80
kernel: R13: 0000000000000000 R14: ffff9a18008164c0 R15: ffff9a1800816000
kernel: FS:  0000000000000000(0000) GS:ffff9a1b0ee80000(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 000055cfd3d2d008 CR3: 0000000107f48000 CR4: 00000000003506e0
kernel: Call Trace:
kernel:  <IRQ>
kernel:  ? pfifo_fast_enqueue+0x150/0x150
kernel:  call_timer_fn+0x2e/0x100
kernel:  __run_timers.part.0+0x1d8/0x250
kernel:  ? ktime_get+0x3e/0xa0
kernel:  ? lapic_next_event+0x21/0x30
kernel:  ? clockevents_program_event+0x8f/0xe0
kernel:  run_timer_softirq+0x2a/0x50
kernel:  __do_softirq+0xce/0x281
kernel:  asm_call_irq_on_stack+0x12/0x20
kernel:  </IRQ>
kernel:  do_softirq_own_stack+0x3d/0x50
kernel:  irq_exit_rcu+0x95/0xd0
kernel:  sysvec_apic_timer_interrupt+0x3d/0x90
kernel:  asm_sysvec_apic_timer_interrupt+0x12/0x20
kernel: RIP: 0010:cpuidle_enter_state+0xcc/0x360
kernel: Code: 3d e9 64 88 69 e8 64 31 75 ff 49 89 c6 0f 1f 44 00 00 31 ff e8 f5 3c 75 ff 80 7d d7 00 0f 85 01 01 00 00 fb 66 0f 1f 44 00 00 <45> 85 ff 0f 88 0d 01 00 00 49 63 cf 4c 2b 75 c8 48 8d 04 49 48 89
kernel: RSP: 0018:ffffa5e700137e60 EFLAGS: 00000246
kernel: RAX: ffff9a1b0eeac480 RBX: 0000000000000002 RCX: 000000000000001f
kernel: RDX: 0000000000000000 RSI: 00000000239f5376 RDI: 0000000000000000
kernel: RBP: ffffa5e700137e98 R08: 00000009851dc34e R09: 0000000000000400
kernel: R10: 00000000000321ae R11: 0000000000000000 R12: ffff9a1801249800
kernel: R13: ffffffff97c6c6a0 R14: 00000009851dc34e R15: 0000000000000002
kernel:  cpuidle_enter+0x2e/0x40
kernel:  cpuidle_idle_call+0x132/0x1d0
kernel:  do_idle+0x7a/0xe0
kernel:  cpu_startup_entry+0x20/0x30
kernel:  start_secondary+0x90/0xa0
kernel:  secondary_startup_64_no_verify+0xb8/0xbb
kernel: CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.10.0-051000rc2-generic #202011012330
kernel: Hardware name: Gigabyte Technology Co., Ltd. B450M DS3H/B450M DS3H-CF, BIOS F4 01/25/2019
kernel: Call Trace:
kernel:  <IRQ>
kernel:  show_stack+0x52/0x58
kernel:  dump_stack+0x70/0x8b
kernel:  ? dev_watchdog+0x24c/0x250
kernel:  __warn.cold+0x24/0x77
kernel:  ? dev_watchdog+0x24c/0x250
kernel:  report_bug+0xa1/0xc0
kernel:  ? __irq_work_queue_local+0x48/0x60
kernel:  handle_bug+0x3e/0xa0
kernel:  exc_invalid_op+0x19/0x70
kernel:  asm_exc_invalid_op+0x12/0x20
kernel: RIP: 0010:dev_watchdog+0x24c/0x250
kernel: Code: 5a 94 fd ff eb ab 4c 89 ff c6 05 e2 58 4d 01 01 e8 99 4c fa ff 44 89 e9 4c 89 fe 48 c7 c7 48 35 48 97 48 89 c2 e8 2a 69 16 00 <0f> 0b eb 8c 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 ff 41 56 41 55
kernel: RSP: 0018:ffffa5e700210e90 EFLAGS: 00010286
kernel: RAX: 0000000000000000 RBX: ffff9a1800d12e00 RCX: 0000000000000000
kernel: RDX: ffff9a1b0eea8ca0 RSI: ffff9a1b0ee98980 RDI: 0000000000000300
kernel: RBP: ffffa5e700210ec0 R08: 0000000000000000 R09: ffffa5e700210c70
kernel: R10: ffffa5e700210c68 R11: ffffffff97b52ca8 R12: ffff9a1800d12e80
kernel: R13: 0000000000000000 R14: ffff9a18008164c0 R15: ffff9a1800816000
kernel:  ? pfifo_fast_enqueue+0x150/0x150
kernel:  call_timer_fn+0x2e/0x100
kernel:  __run_timers.part.0+0x1d8/0x250
kernel:  ? ktime_get+0x3e/0xa0
kernel:  ? lapic_next_event+0x21/0x30
kernel:  ? clockevents_program_event+0x8f/0xe0
kernel:  run_timer_softirq+0x2a/0x50
kernel:  __do_softirq+0xce/0x281
kernel:  asm_call_irq_on_stack+0x12/0x20
kernel:  </IRQ>
kernel:  do_softirq_own_stack+0x3d/0x50
kernel:  irq_exit_rcu+0x95/0xd0
kernel:  sysvec_apic_timer_interrupt+0x3d/0x90
kernel:  asm_sysvec_apic_timer_interrupt+0x12/0x20
kernel: RIP: 0010:cpuidle_enter_state+0xcc/0x360
kernel: Code: 3d e9 64 88 69 e8 64 31 75 ff 49 89 c6 0f 1f 44 00 00 31 ff e8 f5 3c 75 ff 80 7d d7 00 0f 85 01 01 00 00 fb 66 0f 1f 44 00 00 <45> 85 ff 0f 88 0d 01 00 00 49 63 cf 4c 2b 75 c8 48 8d 04 49 48 89
kernel: RSP: 0018:ffffa5e700137e60 EFLAGS: 00000246
kernel: RAX: ffff9a1b0eeac480 RBX: 0000000000000002 RCX: 000000000000001f
kernel: RDX: 0000000000000000 RSI: 00000000239f5376 RDI: 0000000000000000
kernel: RBP: ffffa5e700137e98 R08: 00000009851dc34e R09: 0000000000000400
kernel: R10: 00000000000321ae R11: 0000000000000000 R12: ffff9a1801249800
kernel: R13: ffffffff97c6c6a0 R14: 00000009851dc34e R15: 0000000000000002
kernel:  cpuidle_enter+0x2e/0x40
kernel:  cpuidle_idle_call+0x132/0x1d0
kernel:  do_idle+0x7a/0xe0
kernel:  cpu_startup_entry+0x20/0x30
kernel:  start_secondary+0x90/0xa0
kernel:  secondary_startup_64_no_verify+0xb8/0xbb
kernel: ---[ end trace d63f72f821c42716 ]---