systemd-udevd consumes 100% of one CPU permanently

[Karl-Philipp Richter]

systemd-udevd consumes 100% of one CPU permanently.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: udev 239-7ubuntu10
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
NonfreeKernelModules: nvidia zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
CustomUdevRuleFiles: 70-snap.core.rules 70-snap.openmapper-desktop.rules 70-snap.warzone2100.rules 99-steelseries-rival.rules 60-vboxdrv.rules
Date: Sat Oct 27 16:27:34 2018
MachineType: LENOVO 20221
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.18.0-10-generic root=UUID=ee1fb464-b097-4154-b80e-d73847887065 ro acpi_backlight=vendor
SourcePackage: systemd
UpgradeStatus: Upgraded to cosmic on 2018-10-21 (5 days ago)
dmi.bios.date: 07/12/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 71CN51WW(V1.21)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Z500 Touch
dmi.modalias: dmi:bvnLENOVO:bvr71CN51WW(V1.21):bd07/12/2013:svnLENOVO:pn20221:pvrLenovoIdeaPadZ500Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadZ500Touch:
dmi.product.family: IDEAPAD
dmi.product.name: 20221
dmi.product.sku: LENOVO_MT_20221
dmi.product.version: Lenovo IdeaPad Z500 Touch
dmi.sys.vendor: LENOVO

[Karl-Philipp Richter (krichter722)]

This is fixed, probably by an update.

[Karl-Philipp Richter (krichter722)]

The issue only did not occur for a few hours. The reason for the change is unclear.

[Dan Streetman (ddstreet)]

please reopen if this is still an issue