[Bug 1855747] Re: systemd-udevd appears to be attempting to load Nvidia kernel modules in a tight loop

[costinel]

>Kai-Heng Feng (kaihengfeng) wrote on 2019-12-11:       #4

> Can you please run `sudo update-initramfs -u -k all` and see if the
issue still happens?

yes this persists even after that.

I have a nvidia card but I want to blacklist it. even blacklisted, the
systemd-udevd /lib/udev/rules.d/71-nvidia.rules attempt to run the rules
forever.

moving /lib/udev/rules.d/71-nvidia.rules away from udev rules search
path fixes that, but that's not the correct solution. why does systemd-
udev insist repeating instead of failing after first try?

18.04 lts here. drivers nvidia-driver-390

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https://bugs.launchpad.net/bugs/1855747

Title:
  systemd-udevd appears to be attempting to load Nvidia kernel modules
  in a tight loop

Status in nvidia-graphics-drivers-440 package in Ubuntu:
  Expired
Status in systemd package in Ubuntu:
  Expired

Bug description:
  I'm seeing these lines repeated:

  ```
  Dec 09 12:01:45 surprise systemd-udevd[731]: nvidia: Process '/usr/bin/nvidia-smi' failed with exit code 9.
  Dec 09 12:01:46 surprise systemd-udevd[731]: nvidia: Process '/sbin/modprobe nvidia-modeset' failed with exit code 1.
  Dec 09 12:01:46 surprise systemd-udevd[731]: nvidia: Process '/sbin/modprobe nvidia-drm' failed with exit code 1.
  Dec 09 12:01:47 surprise systemd-udevd[731]: nvidia: Process '/sbin/modprobe nvidia-uvm' failed with exit code 1.
  Dec 09 12:01:48 surprise systemd-udevd[731]: nvidia: Process '/usr/bin/nvidia-smi' failed with exit code 9.
  Dec 09 12:01:49 surprise systemd-udevd[731]: nvidia: Process '/sbin/modprobe nvidia-modeset' failed with exit code 1.
  Dec 09 12:01:49 surprise systemd-udevd[731]: nvidia: Process '/sbin/modprobe nvidia-drm' failed with exit code 1.
  Dec 09 12:01:50 surprise systemd-udevd[731]: nvidia: Process '/sbin/modprobe nvidia-uvm' failed with exit code 1.
  ```

  My system has been up ~an hour:

  $ uptime
   12:02:28 up  1:00,  1 user,  load average: 4.52, 4.80, 5.50

  and I've seen a lot of these:

  $ journalctl -u systemd-udevd.service -b0 | grep -c "exit code 9"
  1333

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: udev 243-3ubuntu1
  ProcVersionSignature: Ubuntu 5.3.0-25.27-generic 5.3.13
  Uname: Linux 5.3.0-25-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.11-0ubuntu13
  Architecture: amd64
  CurrentDesktop: i3
  CustomUdevRuleFiles: 70-snap.core.rules 70-snap.spotify.rules
  Date: Mon Dec  9 11:59:10 2019
  InstallationDate: Installed on 2019-05-07 (215 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  MachineType: Gigabyte Technology Co., Ltd. B450M DS3H
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-25-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash resume=UUID=73909634-a75d-42c9-8f66-a69138690756 vt.handoff=7
  SourcePackage: systemd
  UpgradeStatus: Upgraded to focal on 2019-11-15 (23 days ago)
  dmi.bios.date: 01/25/2019
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F4
  dmi.board.asset.tag: Default string
  dmi.board.name: B450M DS3H-CF
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF4:bd01/25/2019:svnGigabyteTechnologyCo.,Ltd.:pnB450MDS3H:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB450MDS3H-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: Default string
  dmi.product.name: B450M DS3H
  dmi.product.sku: Default string
  dmi.product.version: Default string
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.
  modified.conffile..etc.apport.crashdb.conf: [modified]
  modified.conffile..etc.udev.udev.conf: [modified]
  mtime.conffile..etc.apport.crashdb.conf: 2019-11-25T16:40:26.261317
  mtime.conffile..etc.udev.udev.conf: 2019-11-28T09:22:42.096686

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