** Description changed: i have a roaming ssd disk ubuntu 18.04 with proprietaty nvidia drivers installed from ubuntu thid party repository: ii nvidia-cuda-dev 9.1.85-3ubuntu1 amd64 NVIDIA CUDA development files ii nvidia-cuda-doc 9.1.85-3ubuntu1 all NVIDIA CUDA and OpenCL documentation ii nvidia-cuda-gdb 9.1.85-3ubuntu1 amd64 NVIDIA CUDA Debugger (GDB) ii nvidia-cuda-toolkit 9.1.85-3ubuntu1 amd64 NVIDIA CUDA development toolkit ii nvidia-dkms-396 396.24-0ubuntu0~gpu18.04.1 amd64 NVIDIA DKMS package ii nvidia-kernel-common-396 396.24-0ubuntu0~gpu18.04.1 amd64 Shared files used with the kernel module ii nvidia-kernel-source-396 396.24-0ubuntu0~gpu18.04.1 amd64 NVIDIA kernel source package ii nvidia-profiler 9.1.85-3ubuntu1 amd64 NVIDIA Profiler for CUDA and OpenCL ii nvidia-settings 396.24-0ubuntu0~gpu18.04.1 amd64 Tool for configuring the NVIDIA graphics driver ii nvidia-visual-profiler 9.1.85-3ubuntu1 amd64 NVIDIA Visual Profiler for CUDA and OpenCL r When i boot on my nvidia system , no problem. when i boot on other system , with other card, systemd-udevd eats lots cpu (nearby 100% or little more) and in logs i see infinite loop logging: Jun 2 11:23:16 localhost [19963]: failed to execute '/usr/bin/nvidia-smi' '/usr/bin/nvidia-smi': No such file or directory Jun 2 11:23:16 localhost systemd-udevd[492]: Process '/usr/bin/nvidia-smi' failed with exit code 2. Jun 2 11:23:16 localhost systemd[1]: nvidia-persistenced.service: Start request repeated too quickly. Jun 2 11:23:16 localhost systemd[1]: nvidia-persistenced.service: Failed with result 'exit-code'. Jun 2 11:23:16 localhost systemd[1]: Failed to start NVIDIA Persistence Daemon. Jun 2 11:23:16 localhost kernel: [ 2227.682538] nvidia-nvlink: Nvlink Core is being initialized, major device number 241 Jun 2 11:23:16 localhost kernel: [ 2227.682917] NVRM: No NVIDIA graphics adapter found! Jun 2 11:23:16 localhost kernel: [ 2227.683149] nvidia-nvlink: Unregistered the Nvlink Core, major device number 241 Jun 2 11:23:16 localhost systemd-udevd[492]: Process '/sbin/modprobe nvidia-modeset' failed with exit code 1. Jun 2 11:23:16 localhost kernel: [ 2227.756646] nvidia-nvlink: Nvlink Core is being initialized, major device number 241 Jun 2 11:23:16 localhost kernel: [ 2227.756971] NVRM: No NVIDIA graphics adapter found! Jun 2 11:23:16 localhost kernel: [ 2227.757149] nvidia-nvlink: Unregistered the Nvlink Core, major device number 241 Jun 2 11:23:16 localhost systemd-udevd[492]: Process '/sbin/modprobe nvidia-drm' failed with exit code 1. Jun 2 11:23:16 localhost kernel: [ 2227.824072] nvidia-nvlink: Nvlink Core is being initialized, major device number 241 Jun 2 11:23:16 localhost kernel: [ 2227.824383] NVRM: No NVIDIA graphics adapter found! Jun 2 11:23:16 localhost kernel: [ 2227.824596] nvidia-nvlink: Unregistered the Nvlink Core, major device number 241 Jun 2 11:23:16 localhost systemd-udevd[492]: Process '/sbin/modprobe nvidia-uvm' failed with exit code 1. Jun 2 11:23:16 localhost [19972]: failed to execute '/usr/bin/nvidia-smi' '/usr/bin/nvidia-smi': No such file or directory Jun 2 11:23:16 localhost systemd-udevd[492]: Process '/usr/bin/nvidia-smi' failed with exit code 2. Jun 2 11:23:16 localhost systemd[1]: nvidia-persistenced.service: Start request repeated too quickly. Jun 2 11:23:16 localhost systemd[1]: nvidia-persistenced.service: Failed with result 'exit-code'. Jun 2 11:23:16 localhost systemd[1]: Failed to start NVIDIA Persistence Daemon. the nvidia-uvm module is listed in /etc/modules. # /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines beginning with "#" are ignored. nvidia-uvm it should just fail at boot time and do nothing else. + + when stopping systemd-udevd and starting it again, the problem disappear. + + + i hadn't this problem with ubuntu 16.X/17.X. it may be a nvidia driver/software pb too, so i will do a bug report on nvidia driver too. Regards ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: udev 237-3ubuntu10 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 CurrentDesktop: ubuntu:GNOME CustomUdevRuleFiles: 60-vlan-network-interface.rules 70-snap.core.rules Date: Sat Jun 2 11:16:41 2018 EcryptfsInUse: Yes InstallationDate: Installed on 2017-04-25 (402 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) MachineType: GIGABYTE MRHM3AP ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-22-generic root=UUID=9ed36b5d-9fea-4544-b33c-a7c75c2cdfa5 ro rootflags=subvol=@ disablemodules=nouveau pci=noaer elevator=noop net.ifnames=0 ipv6.disable=1 quiet splash vt.handoff=1 SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/29/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F7 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: MRHM3AP dmi.board.vendor: GIGABYTE dmi.board.version: To be filled by O.E.M. dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF7:bd01/29/2014:svnGIGABYTE:pnMRHM3AP:pvrTobefilledbyO.E.M.:rvnGIGABYTE:rnMRHM3AP:rvrTobefilledbyO.E.M.:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: MRHM3AP dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: GIGABYTE
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1774768 Title: systemd-udevd eats cpu in infinite loop when nvidia card is not plugged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1774768/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
