Ubuntu 18.04 systemd-udevd 使用高 CPU，与 nvidia 显卡冲突

Question

就像在Ubuntu 18.04 systemd-udevd 使用高 CPU，与 wifi 冲突一样，我也遇到了 systemd-udevd CPU 使用率增加的问题，这只能通过 (sudo) 杀死特定进程暂时解决。但是，我的问题不在于 wifi，而在于 NVIDIA 显卡：

阅读udevadm monitor给出了重复的行，如：

KERNEL[408.860342] remove   /module/nvidia (module)
KERNEL[408.901437] add      /module/nvidia (module)
KERNEL[408.916478] remove   /module/nvidia (module)
UDEV  [408.944573] add      /module/nvidia (module)
UDEV  [408.969459] remove   /module/nvidia (module)
KERNEL[409.039276] add      /module/nvidia (module)
KERNEL[409.060769] remove   /module/nvidia (module)

并检查less /var/log/syslog给出的重复版本：

May 13 00:09:28 Lenovo-ideapad-100-15IBY kernel: [28462.698688] nvidia-nvlink: Nvlink Core is being initialized, major device number 240
May 13 00:09:28 Lenovo-ideapad-100-15IBY kernel: [28462.699064] NVRM: No NVIDIA graphics adapter found!
May 13 00:09:28 Lenovo-ideapad-100-15IBY kernel: [28462.699186] nvidia-nvlink: Unregistered the Nvlink Core, major device number 240
May 13 00:09:28 Lenovo-ideapad-100-15IBY systemd-udevd[17923]: Process '/sbin/modprobe nvidia-modeset' failed with exit code 1.
May 13 00:09:28 Lenovo-ideapad-100-15IBY kernel: [28462.776222] nvidia-nvlink: Nvlink Core is being initialized, major device number 240
May 13 00:09:28 Lenovo-ideapad-100-15IBY kernel: [28462.776574] NVRM: No NVIDIA graphics adapter found!
May 13 00:09:28 Lenovo-ideapad-100-15IBY kernel: [28462.776690] nvidia-nvlink: Unregistered the Nvlink Core, major device number 240
May 13 00:09:28 Lenovo-ideapad-100-15IBY systemd-udevd[17923]: Process '/sbin/modprobe nvidia-drm' failed with exit code 1.
May 13 00:09:28 Lenovo-ideapad-100-15IBY systemd-udevd[17923]: Process '/sbin/modprobe nvidia-uvm' failed with exit code 1.
May 13 00:09:28 Lenovo-ideapad-100-15IBY systemd-udevd[17923]: Process '/usr/bin/nvidia-smi' failed with exit code 12.
May 13 00:09:28 Lenovo-ideapad-100-15IBY systemd[1]: nvidia-persistenced.service: Start request repeated too quickly.
May 13 00:09:28 Lenovo-ideapad-100-15IBY systemd[1]: nvidia-persistenced.service: Failed with result 'exit-code'.
May 13 00:09:28 Lenovo-ideapad-100-15IBY systemd[1]: Failed to start NVIDIA Persistence Daemon.

驱动程序是最新的，笔记本电脑上的所有其他软件都已升级（今天）到最新版本，所以我不确定是什么导致了这个问题。我的图形没有任何问题（除了由于这个过程导致 CPU 使用率高时的延迟），所以我不知所措。

我怎样才能停止这种重复，从而吞下 CPU？

Answer 1

我通过运行解决了这个问题

sudo mv /lib/udev/rules.d/71-nvidia.rules ~

并重新启动，以便 udev 不会尝试加载 nvidia 模块。

到目前为止，一切都很好，尽管我怀疑这可能对我不知道的图形做了一些事情。

Answer 2

解决方法

启动后不久，运行以下命令：

sudo systemctl stop systemd-udevd systemd-udevd-kernel.socket systemd-udevd-control.socket

sudo systemctl start systemd-udevd systemd-udevd-kernel.socket systemd-udevd-control.socket

它在我的戴尔笔记本电脑上工作，所有问题都消失了。