Public bug reported: I experience what seems the exact copy of the issue here after I have connected my Dell laptop to a Dell Monitor with an embedded Ethernet over USB-C/Thunderbolt (and USB-B High Speed Upstream Cable). Suddenly no network connection and it can not be restored for a long time or until reboot. https://bugzilla.kernel.org/show_bug.cgi?id=95711
[350895.699185] INFO: task kworker/3:1:11823 blocked for more than 120 seconds. [350895.699192] Tainted: G U W OE 4.15.0-43-generic #46-Ubuntu [350895.699195] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [350895.699198] kworker/3:1 D 0 11823 2 0x80000000 [350895.699212] Workqueue: events rtl_work_func_t [r8152] [350895.699215] Call Trace: [350895.699224] __schedule+0x291/0x8a0 [350895.699228] schedule+0x2c/0x80 [350895.699232] rpm_resume+0x108/0x7d0 [350895.699237] ? wait_woken+0x80/0x80 [350895.699240] rpm_resume+0x584/0x7d0 [350895.699245] ? __switch_to_asm+0x34/0x70 [350895.699249] ? __switch_to_asm+0x40/0x70 [350895.699252] ? __switch_to_asm+0x34/0x70 [350895.699256] ? __switch_to_asm+0x40/0x70 [350895.699259] ? __switch_to_asm+0x34/0x70 [350895.699263] __pm_runtime_resume+0x4e/0x80 [350895.699267] usb_autopm_get_interface+0x22/0x60 [350895.699272] rtl_work_func_t+0x70/0x41e [r8152] [350895.699277] process_one_work+0x1de/0x410 [350895.699280] worker_thread+0x32/0x410 [350895.699285] kthread+0x121/0x140 [350895.699288] ? process_one_work+0x410/0x410 [350895.699292] ? kthread_create_worker_on_cpu+0x70/0x70 [350895.699297] ? do_syscall_64+0x73/0x130 [350895.699300] ? SyS_exit+0x17/0x20 [350895.699304] ret_from_fork+0x35/0x40 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-43-generic 4.15.0-43.46 ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 Uname: Linux 4.15.0-43-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.24 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: user 4820 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Thu Jun 10 14:49:39 2021 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-20160624-2 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=adfb1128-00d7-41b1-be85-1d224e4ddd57 InstallationDate: Installed on 2018-12-31 (891 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47 MachineType: Dell Inc. XPS 13 9360 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=0807f9b3-f643-40c3-8e0c-ae2e30161acc ro locale=en_US quiet splash i915.modeset=1 i915.enable_rc6=1 i915.enable_fbc=1 i915.enable_guc_loading=1 i915.enable_guc_submission=1 i915.enable_huc=1 i915.enable_psr=1 i915.disable_power_well=0 i915.semaphores=1 vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-43-generic N/A linux-backports-modules-4.15.0-43-generic N/A linux-firmware 1.173.20 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/09/2021 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.15.1 dmi.board.name: 0PF86Y dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.15.1:bd03/09/2021:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn0PF86Y:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9360 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic third-party-packages -- 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/1931574 Title: Lost network connection, seems like an older kernel bug Status in linux package in Ubuntu: New Bug description: I experience what seems the exact copy of the issue here after I have connected my Dell laptop to a Dell Monitor with an embedded Ethernet over USB-C/Thunderbolt (and USB-B High Speed Upstream Cable). Suddenly no network connection and it can not be restored for a long time or until reboot. https://bugzilla.kernel.org/show_bug.cgi?id=95711 [350895.699185] INFO: task kworker/3:1:11823 blocked for more than 120 seconds. [350895.699192] Tainted: G U W OE 4.15.0-43-generic #46-Ubuntu [350895.699195] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [350895.699198] kworker/3:1 D 0 11823 2 0x80000000 [350895.699212] Workqueue: events rtl_work_func_t [r8152] [350895.699215] Call Trace: [350895.699224] __schedule+0x291/0x8a0 [350895.699228] schedule+0x2c/0x80 [350895.699232] rpm_resume+0x108/0x7d0 [350895.699237] ? wait_woken+0x80/0x80 [350895.699240] rpm_resume+0x584/0x7d0 [350895.699245] ? __switch_to_asm+0x34/0x70 [350895.699249] ? __switch_to_asm+0x40/0x70 [350895.699252] ? __switch_to_asm+0x34/0x70 [350895.699256] ? __switch_to_asm+0x40/0x70 [350895.699259] ? __switch_to_asm+0x34/0x70 [350895.699263] __pm_runtime_resume+0x4e/0x80 [350895.699267] usb_autopm_get_interface+0x22/0x60 [350895.699272] rtl_work_func_t+0x70/0x41e [r8152] [350895.699277] process_one_work+0x1de/0x410 [350895.699280] worker_thread+0x32/0x410 [350895.699285] kthread+0x121/0x140 [350895.699288] ? process_one_work+0x410/0x410 [350895.699292] ? kthread_create_worker_on_cpu+0x70/0x70 [350895.699297] ? do_syscall_64+0x73/0x130 [350895.699300] ? SyS_exit+0x17/0x20 [350895.699304] ret_from_fork+0x35/0x40 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-43-generic 4.15.0-43.46 ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 Uname: Linux 4.15.0-43-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.24 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: user 4820 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Thu Jun 10 14:49:39 2021 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-20160624-2 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=adfb1128-00d7-41b1-be85-1d224e4ddd57 InstallationDate: Installed on 2018-12-31 (891 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47 MachineType: Dell Inc. XPS 13 9360 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=0807f9b3-f643-40c3-8e0c-ae2e30161acc ro locale=en_US quiet splash i915.modeset=1 i915.enable_rc6=1 i915.enable_fbc=1 i915.enable_guc_loading=1 i915.enable_guc_submission=1 i915.enable_huc=1 i915.enable_psr=1 i915.disable_power_well=0 i915.semaphores=1 vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-43-generic N/A linux-backports-modules-4.15.0-43-generic N/A linux-firmware 1.173.20 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/09/2021 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.15.1 dmi.board.name: 0PF86Y dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.15.1:bd03/09/2021:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn0PF86Y:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9360 dmi.sys.vendor: Dell Inc. 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