[Bug 1896372] [NEW] systemd (sbin/init/ splash) consumes 12% CPU and doesn't stop

[Amr Ibrahim]

Public bug reported:

Right after login, the process systemd (sbin/init/ splash), which is run
by root, consumes 12% CPU and doesn't stop. The CPU fan is always on for
that reason. That doesn't happen in Focal on the same laptop, which has
both Focal and Groovy, and they both share the same /home partition.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: systemd 246.4-1ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-18.19-generic 5.8.4
Uname: Linux 5.8.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu45
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted
Date: Sun Sep 20 10:50:27 2020
InstallationDate: Installed on 2020-09-16 (3 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200910)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 5986:2113 Acer, Inc SunplusIT Integrated Camera
 Bus 001 Device 005: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
 Bus 001 Device 002: ID 0461:4e57 Primax Electronics, Ltd HID compliant device
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20LTS01800
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-18-generic root=UUID=301ac90f-9a29-425d-9b75-b6b2a43bf00a ro quiet splash
SourcePackage: systemd
SystemdFailedUnits:
 Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
 Unit \xe2\x97\x8f.service could not be found.
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/18/2019
dmi.bios.release: 1.37
dmi.bios.vendor: LENOVO
dmi.bios.version: R0QET60W (1.37 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20LTS01800
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.37
dmi.modalias: dmi:bvnLENOVO:bvrR0QET60W(1.37):bd12/18/2019:br1.37:efr1.37:svnLENOVO:pn20LTS01800:pvrThinkPadL480:rvnLENOVO:rn20LTS01800:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad L480
dmi.product.name: 20LTS01800
dmi.product.sku: LENOVO_MT_20LT_BU_Think_FM_ThinkPad L480
dmi.product.version: ThinkPad L480
dmi.sys.vendor: LENOVO

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug groovy wayland-session

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https://bugs.launchpad.net/bugs/1896372

Title:
  systemd (sbin/init/ splash) consumes 12% CPU and doesn't stop

Status in systemd package in Ubuntu:
  New

Bug description:
  Right after login, the process systemd (sbin/init/ splash), which is
  run by root, consumes 12% CPU and doesn't stop. The CPU fan is always
  on for that reason. That doesn't happen in Focal on the same laptop,
  which has both Focal and Groovy, and they both share the same /home
  partition.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: systemd 246.4-1ubuntu1
  ProcVersionSignature: Ubuntu 5.8.0-18.19-generic 5.8.4
  Uname: Linux 5.8.0-18-generic x86_64
  ApportVersion: 2.20.11-0ubuntu45
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted
  Date: Sun Sep 20 10:50:27 2020
  InstallationDate: Installed on 2020-09-16 (3 days ago)
  InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200910)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 5986:2113 Acer, Inc SunplusIT Integrated Camera
   Bus 001 Device 005: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
   Bus 001 Device 002: ID 0461:4e57 Primax Electronics, Ltd HID compliant device
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20LTS01800
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-18-generic root=UUID=301ac90f-9a29-425d-9b75-b6b2a43bf00a ro quiet splash
  SourcePackage: systemd
  SystemdFailedUnits:
   Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
   Unit \xe2\x97\x8f.service could not be found.
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/18/2019
  dmi.bios.release: 1.37
  dmi.bios.vendor: LENOVO
  dmi.bios.version: R0QET60W (1.37 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20LTS01800
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.37
  dmi.modalias: dmi:bvnLENOVO:bvrR0QET60W(1.37):bd12/18/2019:br1.37:efr1.37:svnLENOVO:pn20LTS01800:pvrThinkPadL480:rvnLENOVO:rn20LTS01800:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad L480
  dmi.product.name: 20LTS01800
  dmi.product.sku: LENOVO_MT_20LT_BU_Think_FM_ThinkPad L480
  dmi.product.version: ThinkPad L480
  dmi.sys.vendor: LENOVO

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