NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out

  • LibreELEC (official): 9.2.4 on Intel NUC7PJYH -> LibreELEC-Generic.x86_64-9.2.4.img

    [ 1743.230466] ------------[ cut here ]------------

    [ 1743.230482] NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out

    [ 1743.230516] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:461 dev_watchdog+0x221/0x230

    [ 1743.230517] Modules linked in: 8021q rfcomm bnep iwlmvm mac80211 rc_su3000(O) ds3k(O) iwlwifi wl(PO) snd_hda_codec_hdmi intel_rapl intel_powerclamp snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep cfg80211 pcc_cpufreq btusb btrtl btbcm btintel bluetooth dvb_usb_dw2102(O) dvb_usb(O) rc_core(O) dvb_core(O) videobuf2_vmalloc(O) videobuf2_memops(O) videobuf2_common(O) ecdh_generic rfkill videodev(O) media(O) wireguard ip6_udp_tunnel udp_tunnel

    [ 1743.230603] CPU: 0 PID: 0 Comm: swapper/0 Tainted: P O 5.1.16 #1

    [ 1743.230604] Hardware name: Intel(R) Client Systems NUC7PJYH/NUC7JYB, BIOS JYGLKCPX.86A.0055.2020.0603.1745 06/03/2020

    [ 1743.230606] RIP: 0010:dev_watchdog+0x221/0x230

    [ 1743.230608] Code: 00 49 63 4e e8 eb 92 4c 89 ef c6 05 40 1c 43 03 01 e8 e3 80 fc ff 89 d9 4c 89 ee 48 c7 c7 70 86 fa b2 48 89 c2 e8 d6 83 13 ff <0f> 0b eb c0 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48

    [ 1743.230610] RSP: 0018:ffffa0eb77a03e68 EFLAGS: 00010286

    [ 1743.230627] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000

    [ 1743.230628] RDX: 0000000000040400 RSI: 00000000000000f6 RDI: 0000000000000300

    [ 1743.230629] RBP: ffffa0eb77a03e98 R08: 000000000000032e R09: 0000000000000001

    [ 1743.230630] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001

    [ 1743.230630] R13: ffffa0eb7518c000 R14: ffffa0eb7518c438 R15: ffffa0eb74dcd880

    [ 1743.230632] FS: 0000000000000000(0000) GS:ffffa0eb77a00000(0000) knlGS:0000000000000000

    [ 1743.230633] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

    [ 1743.230634] CR2: 00007f8e115e87fa CR3: 000000021320e000 CR4: 0000000000140eb0

    [ 1743.230635] Call Trace:

    [ 1743.230637] <IRQ>

    [ 1743.230641] ? pfifo_fast_enqueue+0x120/0x120

    [ 1743.230644] call_timer_fn+0x30/0x130

    [ 1743.230645] ? pfifo_fast_enqueue+0x120/0x120

    [ 1743.230646] run_timer_softirq+0x3ec/0x420

    [ 1743.230648] ? ktime_get+0x3c/0xa0

    [ 1743.230651] ? __do_softirq+0x9b/0x343

    [ 1743.230653] ? irq_exit+0xc0/0xd0

    [ 1743.230657] __do_softirq+0x107/0x343

    [ 1743.230658] irq_exit+0xc0/0xd0

    [ 1743.230660] smp_apic_timer_interrupt+0x71/0x130

    [ 1743.230661] apic_timer_interrupt+0xf/0x20

    [ 1743.230662] </IRQ>

    [ 1743.230665] RIP: 0010:cpuidle_enter_state+0xc4/0x450

    [ 1743.230666] Code: 00 00 31 ff e8 bd 86 29 ff 80 7d c7 00 74 12 9c 58 f6 c4 02 0f 85 62 03 00 00 31 ff e8 55 4b 2e ff e8 c0 7f 32 ff fb 45 85 ed <0f> 88 8d 02 00 00 49 63 cd 48 8b 75 d0 48 2b 75 c8 48 8d 04 49 48

    [ 1743.230667] RSP: 0018:ffffffffb3203df0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13

    [ 1743.230668] RAX: ffffffffb3203e30 RBX: ffffffffb32c5960 RCX: 000000000000001f

    [ 1743.230669] RDX: 00000195e0a1a169 RSI: ffffffffafdfbeb7 RDI: ffffffffafdfbaf0

    [ 1743.230670] RBP: ffffffffb3203e30 R08: 0000000000000000 R09: 0000000000020cc0

    [ 1743.230671] R10: 000002639bcde538 R11: ffffa0eb77a20564 R12: ffffa0eb77a28e70

    [ 1743.230672] R13: 0000000000000007 R14: ffffffffb32c5c18 R15: ffffffffb32c5c00

    [ 1743.230674] ? cpuidle_enter+0x17/0x20

    [ 1743.230675] ? cpuidle_enter_state+0xc0/0x450

    [ 1743.230677] cpuidle_enter+0x17/0x20

    [ 1743.230679] call_cpuidle+0x23/0x40

    [ 1743.230681] do_idle+0x221/0x260

    [ 1743.230682] cpu_startup_entry+0x1d/0x20

    [ 1743.230684] rest_init+0xa3/0xa5

    [ 1743.230687] arch_call_rest_init+0xe/0x1b

    [ 1743.230688] start_kernel+0x46c/0x48f

    [ 1743.230690] x86_64_start_reservations+0x24/0x26

    [ 1743.230692] x86_64_start_kernel+0x6f/0x72

    [ 1743.230694] secondary_startup_64+0xa4/0xb0

    [ 1743.230696] ---[ end trace f2f539d2d5598546 ]---


    I often see this kernel warning and I am aware that this is seen also on other Linux distributions - but I don't know whether this is serious or can be ignored? Can anybody give me some light to this? Thanx a lot ...