here comes the error:
[ 60.259403] ------------[ cut here ]------------ [ 60.259405] NETDEV WATCHDOG: enp5s0 (r8169): transmit queue 0 timed out [ 60.259416] WARNING: CPU: 6 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x258/0x260 [ 60.259417] Modules linked in: vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter bpfilter aufs overlay nls_iso8859_1 snd_hda_codec_hdmi intel_rapl_msr mei_hdcp snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi intel_rapl_common bridge x86_pkg_temp_thermal intel_powerclamp stp snd_seq llc coretemp kvm_intel snd_seq_device kvm input_leds snd_timer intel_cstate intel_rapl_perf eeepc_wmi asus_wmi sparse_keymap wmi_bmof snd soundcore mei_me mei mac_hid acpi_pad sch_fq_codel parport_pc ppdev lp parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid uas usb_storage crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel [ 60.259438] crypto_simd i915 mxm_wmi i2c_algo_bit cryptd glue_helper drm_kms_helper nvme syscopyarea sysfillrect sysimgblt fb_sys_fops r8169 i2c_i801 drm nvme_core ahci realtek libahci wmi video [ 60.259444] CPU: 6 PID: 0 Comm: swapper/6 Tainted: G OE 5.4.0-33-generic #37-Ubuntu [ 60.259445] Hardware name: bluechip Computer AG BUSINESSline/Z170-K, BIOS 3805 05/16/2018 [ 60.259446] RIP: 0010:dev_watchdog+0x258/0x260 [ 60.259447] Code: 85 c0 75 e5 eb 9f 4c 89 ff c6 05 ef f6 e7 00 01 e8 6d bb fa ff 44 89 e9 4c 89 fe 48 c7 c7 40 73 e3 8f 48 89 c2 e8 03 30 71 ff <0f> 0b eb 80 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 d7 [ 60.259448] RSP: 0018:ffffaf7200234e30 EFLAGS: 00010286 [ 60.259448] RAX: 0000000000000000 RBX: ffff9c6ded99fa00 RCX: 0000000000000006 [ 60.259449] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9c6df6b978c0 [ 60.259449] RBP: ffffaf7200234e60 R08: 00000000000004a0 R09: 0000000000000004 [ 60.259450] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 60.259450] R13: 0000000000000000 R14: ffff9c6defed4480 R15: ffff9c6defed4000 [ 60.259451] FS: 0000000000000000(0000) GS:ffff9c6df6b80000(0000) knlGS:0000000000000000 [ 60.259451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.259452] CR2: 00001a62928112d0 CR3: 00000009e1e0a002 CR4: 00000000003606e0 [ 60.259452] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.259453] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.259453] Call Trace: [ 60.259454] <IRQ> [ 60.259456] ? pfifo_fast_enqueue+0x150/0x150 [ 60.259458] call_timer_fn+0x32/0x130 [ 60.259459] __run_timers.part.0+0x180/0x280 [ 60.259461] ? timerqueue_add+0x68/0xb0 [ 60.259462] ? enqueue_hrtimer+0x3d/0x90 [ 60.259464] ? recalibrate_cpu_khz+0x10/0x10 [ 60.259465] ? ktime_get+0x3e/0xa0 [ 60.259466] run_timer_softirq+0x2a/0x50 [ 60.259467] __do_softirq+0xe1/0x2d6 [ 60.259468] ? hrtimer_interrupt+0x13b/0x220 [ 60.259469] irq_exit+0xae/0xb0 [ 60.259470] smp_apic_timer_interrupt+0x7b/0x140 [ 60.259472] apic_timer_interrupt+0xf/0x20 [ 60.259472] </IRQ> [ 60.259473] RIP: 0010:cpuidle_enter_state+0xc5/0x450 [ 60.259474] Code: ff e8 9f 04 81 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 65 03 00 00 31 ff e8 f2 74 87 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d c8 48 8d [ 60.259475] RSP: 0018:ffffaf72000efe38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 60.259475] RAX: ffff9c6df6baad00 RBX: ffffffff90159dc0 RCX: 000000000000001f [ 60.259476] RDX: 0000000000000000 RSI: 000000001fef9fcd RDI: 0000000000000000 [ 60.259476] RBP: ffffaf72000efe78 R08: 0000000e07bd779e R09: 0000000000000335 [ 60.259477] R10: ffff9c6df6ba9a00 R11: ffff9c6df6ba99e0 R12: ffff9c6df6bb5700 [ 60.259477] R13: 0000000000000002 R14: 0000000000000002 R15: ffff9c6df6bb5700 [ 60.259478] ? cpuidle_enter_state+0xa1/0x450 [ 60.259479] cpuidle_enter+0x2e/0x40 [ 60.259480] call_cpuidle+0x23/0x40 [ 60.259481] do_idle+0x1dd/0x270 [ 60.259482] cpu_startup_entry+0x20/0x30 [ 60.259483] start_secondary+0x167/0x1c0 [ 60.259485] secondary_startup_64+0xa4/0xb0 [ 60.259486] ---[ end trace acbef11636a70d66 ]---
here comes the error:
[ 60.259403] ------------[ cut here ]------------ sch_generic. c:447 dev_watchdog+ 0x258/0x260 codec_realtek snd_hda_ codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi intel_rapl_common bridge x86_pkg_ temp_thermal intel_powerclamp stp snd_seq llc coretemp kvm_intel snd_seq_device kvm input_leds snd_timer intel_cstate intel_rapl_perf eeepc_wmi asus_wmi sparse_keymap wmi_bmof snd soundcore mei_me mei mac_hid acpi_pad sch_fq_codel parport_pc ppdev lp parport nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid uas usb_storage crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel Z170-K, BIOS 3805 05/16/2018 watchdog+ 0x258/0x260 234e30 EFLAGS: 00010286 0(0000) GS:ffff9c6df6b8 0000(0000) knlGS:000000000 0000000 enqueue+ 0x150/0x150 fn+0x32/ 0x130 part.0+ 0x180/0x280 add+0x68/ 0xb0 hrtimer+ 0x3d/0x90 cpu_khz+ 0x10/0x10 softirq+ 0x2a/0x50 0xe1/0x2d6 interrupt+ 0x13b/0x220 timer_interrupt +0x7b/0x140 interrupt+ 0xf/0x20 enter_state+ 0xc5/0x450 0efe38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 enter_state+ 0xa1/0x450 enter+0x2e/ 0x40 0x23/0x40 entry+0x20/ 0x30 +0x167/ 0x1c0 startup_ 64+0xa4/ 0xb0
[ 60.259405] NETDEV WATCHDOG: enp5s0 (r8169): transmit queue 0 timed out
[ 60.259416] WARNING: CPU: 6 PID: 0 at net/sched/
[ 60.259417] Modules linked in: vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter bpfilter aufs overlay nls_iso8859_1 snd_hda_codec_hdmi intel_rapl_msr mei_hdcp snd_hda_
[ 60.259438] crypto_simd i915 mxm_wmi i2c_algo_bit cryptd glue_helper drm_kms_helper nvme syscopyarea sysfillrect sysimgblt fb_sys_fops r8169 i2c_i801 drm nvme_core ahci realtek libahci wmi video
[ 60.259444] CPU: 6 PID: 0 Comm: swapper/6 Tainted: G OE 5.4.0-33-generic #37-Ubuntu
[ 60.259445] Hardware name: bluechip Computer AG BUSINESSline/
[ 60.259446] RIP: 0010:dev_
[ 60.259447] Code: 85 c0 75 e5 eb 9f 4c 89 ff c6 05 ef f6 e7 00 01 e8 6d bb fa ff 44 89 e9 4c 89 fe 48 c7 c7 40 73 e3 8f 48 89 c2 e8 03 30 71 ff <0f> 0b eb 80 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 d7
[ 60.259448] RSP: 0018:ffffaf7200
[ 60.259448] RAX: 0000000000000000 RBX: ffff9c6ded99fa00 RCX: 0000000000000006
[ 60.259449] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9c6df6b978c0
[ 60.259449] RBP: ffffaf7200234e60 R08: 00000000000004a0 R09: 0000000000000004
[ 60.259450] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[ 60.259450] R13: 0000000000000000 R14: ffff9c6defed4480 R15: ffff9c6defed4000
[ 60.259451] FS: 000000000000000
[ 60.259451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 60.259452] CR2: 00001a62928112d0 CR3: 00000009e1e0a002 CR4: 00000000003606e0
[ 60.259452] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 60.259453] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 60.259453] Call Trace:
[ 60.259454] <IRQ>
[ 60.259456] ? pfifo_fast_
[ 60.259458] call_timer_
[ 60.259459] __run_timers.
[ 60.259461] ? timerqueue_
[ 60.259462] ? enqueue_
[ 60.259464] ? recalibrate_
[ 60.259465] ? ktime_get+0x3e/0xa0
[ 60.259466] run_timer_
[ 60.259467] __do_softirq+
[ 60.259468] ? hrtimer_
[ 60.259469] irq_exit+0xae/0xb0
[ 60.259470] smp_apic_
[ 60.259472] apic_timer_
[ 60.259472] </IRQ>
[ 60.259473] RIP: 0010:cpuidle_
[ 60.259474] Code: ff e8 9f 04 81 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 65 03 00 00 31 ff e8 f2 74 87 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d c8 48 8d
[ 60.259475] RSP: 0018:ffffaf7200
[ 60.259475] RAX: ffff9c6df6baad00 RBX: ffffffff90159dc0 RCX: 000000000000001f
[ 60.259476] RDX: 0000000000000000 RSI: 000000001fef9fcd RDI: 0000000000000000
[ 60.259476] RBP: ffffaf72000efe78 R08: 0000000e07bd779e R09: 0000000000000335
[ 60.259477] R10: ffff9c6df6ba9a00 R11: ffff9c6df6ba99e0 R12: ffff9c6df6bb5700
[ 60.259477] R13: 0000000000000002 R14: 0000000000000002 R15: ffff9c6df6bb5700
[ 60.259478] ? cpuidle_
[ 60.259479] cpuidle_
[ 60.259480] call_cpuidle+
[ 60.259481] do_idle+0x1dd/0x270
[ 60.259482] cpu_startup_
[ 60.259483] start_secondary
[ 60.259485] secondary_
[ 60.259486] ---[ end trace acbef11636a70d66 ]---