Backtrace

NETDEV WATCHDOG: ens4u2u4 (r8152): transmit queue 0 timed out
WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:442 dev_watchdog+0x24e/0x260
Modules linked in: rfcomm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache ccm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop snd_sof_pci snd_sof_intel_byt snd_sof_intel_ipc snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_xtensa_dsp snd_sof_intel_hda snd_sof snd_soc_skl snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine dell_rbtn ee1004
 iTCO_wdt intel_pmc_bxt iTCO_vendor_support iwlmvm mei_hdcp x86_pkg_temp_thermal intel_powerclamp mei_wdt coretemp snd_hda_codec_hdmi intel_rapl_msr mac80211 kvm_intel dell_laptop snd_hda_codec_realtek libarc4 snd_hda_codec_generic kvm dell_smm_hwmon ledtrig_audio uvcvideo snd_hda_intel videobuf2_vmalloc irqbypass iwlwifi rapl snd_intel_dspcfg videobuf2_memops intel_cstate videobuf2_v4l2 intel_uncore btusb snd_usb_audio btrtl btbcm dell_wmi btintel dell_smbios snd_hda_codec snd_usbmidi_lib snd_hda_core pcspkr i2c_i801 bluetooth videobuf2_common dcdbas cfg80211 wmi_bmof intel_wmi_thunderbolt dell_wmi_descriptor snd_seq snd_rawmidi i2c_smbus snd_hwdep snd_seq_device ecdh_generic videodev rfkill snd_pcm thunderbolt mc ecc mei_me joydev mei snd_timer processor_thermal_device snd idma64 ucsi_acpi typec_ucsi intel_rapl_common soundcore intel_soc_dts_iosf intel_pch_thermal typec int3403_thermal int3400_thermal int340x_thermal_zone acpi_thermal_rel dell_smo8800 acpi_pad intel_hid
 sparse_keymap ip_tables dm_crypt r8152 mii nouveau i915 hid_multitouch ttm rtsx_pci_sdmmc crct10dif_pclmul mmc_core crc32_pclmul crc32c_intel mxm_wmi i2c_algo_bit drm_kms_helper ghash_clmulni_intel serio_raw e1000e cec nvme drm rtsx_pci nvme_core i2c_hid wmi video pinctrl_cannonlake pinctrl_intel fuse
CPU: 1 PID: 0 Comm: swapper/1 Tainted: P        W  OE     5.8.18-100.fc31.x86_64 #1
Hardware name: Dell Inc. Precision 7540/0J5KD5, BIOS 1.4.0 09/23/2019
RIP: 0010:dev_watchdog+0x24e/0x260
Code: 85 c0 75 e5 eb 9c 4c 89 ef c6 05 c0 68 23 01 01 e8 e7 05 fb ff 44 89 e1 4c 89 ee 48 c7 c7 28 fb 49 b7 48 89 c2 e8 64 e8 6e ff <0f> 0b e9 7a ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00
RSP: 0018:ffffb6c98014ce98 EFLAGS: 00010292
RAX: 000000000000003d RBX: ffff9eca7db91e00 RCX: 0000000000000027
RDX: 0000000000000027 RSI: 0000000000000096 RDI: ffff9eca8c458d08
RBP: ffff9eca7ceba3dc R08: ffff9eca8c458d00 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff9eca7ceba000 R14: ffff9eca7ceba480 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff9eca8c440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002f0273744530 CR3: 000000039e01a004 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ? pfifo_fast_enqueue+0x150/0x150
 call_timer_fn+0x2d/0x130
 run_timer_softirq+0x183/0x490
 ? __hrtimer_run_queues+0x115/0x240
 ? ktime_get+0x38/0x90
 ? sched_clock+0x5/0x10
 __do_softirq+0xee/0x2ff
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 do_softirq_own_stack+0x37/0x40
 irq_exit_rcu+0xd8/0xe0
 sysvec_apic_timer_interrupt+0x34/0x80
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:cpuidle_enter_state+0xc9/0x3e0
Code: e8 0c f5 7d ff 80 7c 24 0f 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 e5 02 00 00 31 ff e8 4e 4b 84 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 3b 02 00 00 49 63 d5 4c 2b 64 24 10 48 8d 04 52 48
RSP: 0018:ffffb6c9800e7e78 EFLAGS: 00000246
RAX: ffff9eca8c46a2c0 RBX: ffff9eca8c475100 RCX: 000000000000001f
RDX: 0000000000000000 RSI: 0000000033481c46 RDI: 0000000000000000
RBP: ffffffffb7b6f540 R08: 0000146fa0bff7db R09: 0000000000000072
R10: 000000000000000b R11: ffff9eca8c4690e4 R12: 0000146fa0bff7db
R13: 0000000000000001 R14: 0000000000000001 R15: ffff9eca8a2c4e80
 ? cpuidle_enter_state+0xa4/0x3e0
 cpuidle_enter+0x29/0x40
 do_idle+0x1c0/0x260
 cpu_startup_entry+0x19/0x20
 start_secondary+0x144/0x170
 secondary_startup_64+0xb6/0xc0