I have this seemingly related bug: When I connect to my ThinkPad Thunderbolt 3 dock with a ThinkPad X1 Carbon (6th Gen) using Ubuntu 20.10, after a few hours the NIC stops working:
Dec 5 00:28:58 davido-thinkpad kernel: [46349.075202] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:04 davido-thinkpad kernel: [46354.963230] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:09 davido-thinkpad kernel: [46359.827136] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:14 davido-thinkpad kernel: [46364.947149] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:19 davido-thinkpad kernel: [46370.067211] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:25 davido-thinkpad kernel: [46375.955090] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:30 davido-thinkpad kernel: [46381.075069] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:36 davido-thinkpad kernel: [46386.963098] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:41 davido-thinkpad kernel: [46391.827108] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:46 davido-thinkpad kernel: [46396.947053] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:51 davido-thinkpad kernel: [46402.067077] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:29:57 davido-thinkpad kernel: [46407.954960] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:02 davido-thinkpad kernel: [46413.075025] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:08 davido-thinkpad kernel: [46418.962792] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:13 davido-thinkpad kernel: [46423.826987] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:18 davido-thinkpad kernel: [46428.946952] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:23 davido-thinkpad kernel: [46434.066892] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:29 davido-thinkpad kernel: [46439.954816] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:34 davido-thinkpad kernel: [46445.074832] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:40 davido-thinkpad kernel: [46450.962763] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:45 davido-thinkpad kernel: [46455.826743] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:46 davido-thinkpad NetworkManager[945]: <info> [1607153446.6029] manager: NetworkManager state is now CONNECTED_SITE Dec 5 00:30:46 davido-thinkpad NetworkManager[945]: <info> [1607153446.6072] manager: NetworkManager state is now CONNECTED_LOCAL Dec 5 00:30:46 davido-thinkpad NetworkManager[945]: <info> [1607153446.6075] manager: NetworkManager state is now CONNECTED_SITE Dec 5 00:30:46 davido-thinkpad NetworkManager[945]: <info> [1607153446.6077] policy: set 'Wired connection 2' (enx0050b6a7622b) as default for IPv4 routing and DNS Dec 5 00:30:46 davido-thinkpad dbus-daemon[943]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.9' (uid=0 pid=945 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined") Dec 5 00:30:46 davido-thinkpad deja-dup-monito[25858]: Source ID 448 was not found when attempting to remove it Dec 5 00:30:46 davido-thinkpad systemd[1]: Starting Network Manager Script Dispatcher Service... Dec 5 00:30:46 davido-thinkpad dbus-daemon[943]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Dec 5 00:30:46 davido-thinkpad systemd[1]: Started Network Manager Script Dispatcher Service. Dec 5 00:30:50 davido-thinkpad kernel: [46460.946787] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:52 davido-thinkpad whoopsie[5431]: [00:30:52] Cannot reach: https://daisy.ubuntu.com Dec 5 00:30:55 davido-thinkpad kernel: [46466.066797] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:30:57 davido-thinkpad systemd[1]: NetworkManager-dispatcher.service: Succeeded. Dec 5 00:31:01 davido-thinkpad kernel: [46471.954734] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:06 davido-thinkpad kernel: [46477.074659] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:12 davido-thinkpad kernel: [46482.962741] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:17 davido-thinkpad kernel: [46487.826611] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:22 davido-thinkpad kernel: [46492.946592] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:27 davido-thinkpad kernel: [46498.066663] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:33 davido-thinkpad kernel: [46503.954576] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:38 davido-thinkpad kernel: [46509.074528] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout Dec 5 00:31:44 davido-thinkpad kernel: [46514.962608] r8152 6-1:1.0 enx0050b6a7622b: Tx timeout This TB3 dock is known to work relatively flawlessly with the same model laptop under Ubuntu 20.04, and on the same model laptop under Centos7. Kernel info: davido@davido-thinkpad:~$ uname -a Linux davido-thinkpad 5.8.0-31-generic #33-Ubuntu SMP Mon Nov 23 18:44:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1871962 Title: NETDEV WATCHDOG: enx106530060c6c (r8152): transmit queue 0 timed out Status in linux package in Ubuntu: Confirmed Bug description: [21388.637197] ------------[ cut here ]------------ [21388.637206] NETDEV WATCHDOG: enx106530060c6c (r8152): transmit queue 0 timed out [21388.637255] WARNING: CPU: 5 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x258/0x260 [21388.637257] Modules linked in: nls_utf8 isofs uas usb_storage thunderbolt rfcomm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ccm typec_displayport cmac algif_hash algif_skcipher af_alg bnep binfmt_misc nls_iso8859_1 mei_hdcp intel_rapl_msr snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic dell_laptop ledtrig_audio snd_hda_intel snd_intel_nhlt snd_hda_codec snd_hda_core snd_usb_audio snd_seq_midi snd_seq_midi_event snd_usbmidi_lib btusb snd_hwdep snd_rawmidi btrtl ath10k_pci snd_seq joydev btbcm ath10k_core cdc_ether btintel snd_seq_device usbnet uvcvideo snd_pcm bluetooth x86_pkg_temp_thermal ath intel_powerclamp r8152 mii videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 coretemp videobuf2_common snd_timer videodev dell_wmi mc kvm_intel kvm ecdh_generic ecc intel_cstate dell_smbios snd mac80211 intel_rapl_perf dcdbas input_leds serio_raw intel_wmi_thunderbolt dell_wmi_descriptor wmi_bmof cfg80211 rtsx_pci_ms soundcore libarc4 hid_multitouch memstick mei_me intel_pch_thermal [21388.637355] ucsi_acpi intel_xhci_usb_role_switch processor_thermal_device typec_ucsi roles intel_rapl_common mei intel_soc_dts_iosf typec intel_hid acpi_pad int3400_thermal acpi_thermal_rel int3403_thermal int340x_thermal_zone mac_hid sparse_keymap sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 mmc_block dm_crypt hid_generic usbhid crct10dif_pclmul crc32_pclmul i915 ghash_clmulni_intel rtsx_pci_sdmmc aesni_intel crypto_simd cryptd glue_helper i2c_algo_bit psmouse drm_kms_helper syscopyarea sysfillrect sysimgblt nvme fb_sys_fops i2c_i801 nvme_core drm intel_lpss_pci intel_lpss rtsx_pci idma64 virt_dma i2c_hid wmi hid pinctrl_sunrisepoint pinctrl_intel video [21388.637433] CPU: 5 PID: 0 Comm: swapper/5 Tainted: G OE 5.4.0-21-generic #25-Ubuntu [21388.637436] Hardware name: Dell Inc. XPS 13 9370/0F6P3V, BIOS 1.12.1 12/11/2019 [21388.637446] RIP: 0010:dev_watchdog+0x258/0x260 [21388.637452] Code: 85 c0 75 e5 eb 9f 4c 89 ff c6 05 5e 26 e8 00 01 e8 ed bc fa ff 44 89 e9 4c 89 fe 48 c7 c7 10 63 a3 83 48 89 c2 e8 33 61 71 ff <0f> 0b eb 80 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 d7 [21388.637456] RSP: 0018:ffffb70f8020ce30 EFLAGS: 00010286 [21388.637460] RAX: 0000000000000000 RBX: ffff99f6cf37e200 RCX: 0000000000000006 [21388.637463] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff99f6de5578c0 [21388.637466] RBP: ffffb70f8020ce60 R08: 0000000000000746 R09: 0000000000000004 [21388.637468] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [21388.637471] R13: 0000000000000000 R14: ffff99f6d2d86480 R15: ffff99f6d2d86000 [21388.637475] FS: 0000000000000000(0000) GS:ffff99f6de540000(0000) knlGS:0000000000000000 [21388.637479] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [21388.637483] CR2: 00007fbb8f20a000 CR3: 000000046620a005 CR4: 00000000003606e0 [21388.637486] Call Trace: [21388.637489] <IRQ> [21388.637502] ? pfifo_fast_enqueue+0x150/0x150 [21388.637513] call_timer_fn+0x32/0x130 [21388.637524] __run_timers.part.0+0x180/0x280 [21388.637534] ? timerqueue_add+0x9b/0xb0 [21388.637540] ? enqueue_hrtimer+0x3d/0x90 [21388.637550] ? recalibrate_cpu_khz+0x10/0x10 [21388.637556] ? ktime_get+0x3e/0xa0 [21388.637566] run_timer_softirq+0x2a/0x50 [21388.637574] __do_softirq+0xe1/0x2d6 [21388.637580] ? hrtimer_interrupt+0x13b/0x220 [21388.637588] irq_exit+0xae/0xb0 [21388.637595] smp_apic_timer_interrupt+0x7b/0x140 [21388.637601] apic_timer_interrupt+0xf/0x20 [21388.637603] </IRQ> [21388.637612] RIP: 0010:cpuidle_enter_state+0xc5/0x450 [21388.637616] Code: ff e8 af 2c 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 02 8a 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 [21388.637619] RSP: 0018:ffffb70f800f3e38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [21388.637622] RAX: ffff99f6de56ad00 RBX: ffffffff83d59b40 RCX: 000000000000001f [21388.637624] RDX: 0000000000000000 RSI: 000000004041ceb5 RDI: 0000000000000000 [21388.637626] RBP: ffffb70f800f3e78 R08: 00001373ee1f080a R09: 00000000000016b1 [21388.637628] R10: ffff99f6de569a00 R11: ffff99f6de5699e0 R12: ffff99f6de575700 [21388.637630] R13: 0000000000000006 R14: 0000000000000006 R15: ffff99f6de575700 [21388.637638] ? cpuidle_enter_state+0xa1/0x450 [21388.637644] cpuidle_enter+0x2e/0x40 [21388.637650] call_cpuidle+0x23/0x40 [21388.637654] do_idle+0x1dd/0x270 [21388.637658] cpu_startup_entry+0x20/0x30 [21388.637663] start_secondary+0x167/0x1c0 [21388.637669] secondary_startup_64+0xa4/0xb0 [21388.637674] ---[ end trace 4c2ddab2b5dc1f22 ]--- ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-21-generic 5.4.0-21.25 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu25 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: nikolaj 1971 F.... pulseaudio /dev/snd/controlC0: nikolaj 1971 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Apr 10 01:15:49 2020 InstallationDate: Installed on 2019-11-15 (146 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Dell Inc. XPS 13 9370 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-21-generic root=/dev/mapper/vgubuntu-root ro quiet splash mem_sleep_default=deep vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-21-generic N/A linux-backports-modules-5.4.0-21-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-04-04 (5 days ago) dmi.bios.date: 12/11/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.12.1 dmi.board.name: 0F6P3V dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.12.1:bd12/11/2019:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9370 dmi.product.sku: 07E6 dmi.sys.vendor: Dell Inc. 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