Confirmed. And it also looks like the fix made it into the 6.8 kernel for noble.


From: <email address hidden> <email address hidden> on behalf of ku4eto <email address hidden>
Date: Friday, May 3, 2024 at 15:20
To: Drew Reis <email address hidden>
Subject: [Bug 2048945] Re: scsi_eh_* process using idle CPU after upgrade to kernel 6.5
Issue seems to have been fixed, with the bug report not being mentioned in the changelog.
Tested on Ubuntu 22.04, with 6.5.0-28-generic, vSphere 6.5, ESXi 6.5, IDE CD/DVD as Client Device.
I guess this can be closed.

@areis422 Can you test and confirm on your side as well?

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Title:
  scsi_eh_* process using idle CPU after upgrade to kernel 6.5

Status in linux:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed
Status in linux-aws-6.5 package in Ubuntu:
  Confirmed
Status in linux-hwe-6.5 package in Ubuntu:
  Confirmed
Status in linux-meta-hwe-6.5 package in Ubuntu:
  Confirmed
Status in linux-signed-hwe-6.5 package in Ubuntu:
  Confirmed

Bug description:
  Possibly related to https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Flkml.kernel.org%2Flinux-&data=05%7C02%7Cdrew_reis%40gensler.com%7Caa2ee77f19b24bd7689908dc6bae78e8%7C94a74758f2ff413c9f705725701b8d02%7C0%7C0%7C638503644324879127%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=PkMnglOHo3q9hgHMSOyDsJug1rM0HJJO2YW%2FgtRUtW0%3D&reserved=0<https://lkml.kernel.org/linux->
  <email address hidden>/T/

  Getting alerts from monitoring tools about high average CPU usage.
  Machine reporting the following:

  root@server:~# uptime
   17:04:34 up 14 days,  6:33,  2 users,  load average: 15.66, 15.88, 15.94

  root@server:~# top -d 1

  top - 17:04:49 up 14 days,  6:33,  2 users,  load average: 15.59, 15.85, 15.93
  Tasks: 223 total,   1 running, 222 sleeping,   0 stopped,   0 zombie
  %Cpu(s):  0.7 us,  1.4 sy,  0.0 ni, 49.3 id, 48.6 wa,  0.0 hi,  0.0 si,  0.0 st
  MiB Mem :   7896.6 total,   1772.6 free,   1163.9 used,   4960.0 buff/cache
  MiB Swap:   2048.0 total,   1784.6 free,    263.4 used.   6431.6avail Mem

      PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
       88 root      20   0       0      0      0 D  55.4   0.0  11275:46 scsi_eh_1

  root@server:~# lsb_release -rd
  Description:    Ubuntu 22.04.3 LTS
  Release:        22.04

  root@server:~# apt-cache policy linux-image-virtual-hwe-22.04-edge
  linux-image-virtual-hwe-22.04-edge:
    Installed: 6.5.0.14.14~22.04.6
    Candidate: 6.5.0.14.14~22.04.7
    Version table:
       6.5.0.14.14~22.04.7 500
          500 https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fus.archive.ubuntu.com%2Fubuntu&data=05%7C02%7Cdrew_reis%40gensler.com%7Caa2ee77f19b24bd7689908dc6bae78e8%7C94a74758f2ff413c9f705725701b8d02%7C0%7C0%7C638503644324885309%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=gPrK1nNfbsxG84ZwqwLBYjT0SO5pehjcA78j5U3IPSE%3D&reserved=0<http://us.archive.ubuntu.com/ubuntu> jammy-updates/main amd64 Packages
          500 https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsecurity.ubuntu.com%2Fubuntu&data=05%7C02%7Cdrew_reis%40gensler.com%7Caa2ee77f19b24bd7689908dc6bae78e8%7C94a74758f2ff413c9f705725701b8d02%7C0%7C0%7C638503644324888966%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=OmDdYEQ6WlEFtwTyVrFV%2BZSqMFfkCU%2BO7XZCVJXRc2o%3D&reserved=0<http://security.ubuntu.com/ubuntu> jammy-security/main amd64 Packages
   *** 6.5.0.14.14~22.04.6 100
          100 /var/lib/dpkg/status
       5.15.0.25.27 500
          500 https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fus.archive.ubuntu.com%2Fubuntu&data=05%7C02%7Cdrew_reis%40gensler.com%7Caa2ee77f19b24bd7689908dc6bae78e8%7C94a74758f2ff413c9f705725701b8d02%7C0%7C0%7C638503644324893922%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=JR3G%2Fag6CELAWOxKRrHAZC7DF4HzQaZc6TbgfAoOBnc%3D&reserved=0<http://us.archive.ubuntu.com/ubuntu> jammy/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: linux-image-6.5.0-14-generic 6.5.0-14.14~22.04.1
  ProcVersionSignature: Ubuntu 6.5.0-14.14~22.04.1-generic 6.5.3
  Uname: Linux 6.5.0-14-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Wed Jan 10 17:02:50 2024
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-signed-hwe-6.5
  UpgradeStatus: Upgraded to jammy on 2023-05-02 (253 days ago)
  ---
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: unknown
  DistroRelease: Ubuntu 22.04
  Package: linux-image-virtual-hwe-22.04-edge 6.5.0.14.14~22.04.6
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 6.5.0-14.14~22.04.1-generic 6.5.3
  Tags: jammy third-party-packages
  Uname: Linux 6.5.0-14-generic x86_64
  UpgradeStatus: Upgraded to jammy on 2023-05-02 (253 days ago)
  UserGroups: N/A
  _MarkForUpload: True
  ---
  ProblemType: Bug
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Dec 27 10:31 seq
   crw-rw---- 1 root audio 116, 33 Dec 27 10:31 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  CasperMD5CheckResult: unknown
  DistroRelease: Ubuntu 22.04
  HibernationDevice: #RESUME=UUID=9bf7612f-b07b-4adf-9760-0c14b8d7d6fc
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  Lsusb-t:

  Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
  MachineType: VMware, Inc. VMware Virtual Platform
  Package: linux (not installed)
  PciMultimedia:

  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 vmwgfxdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-14-generic root=UUID=07ffde4f-b32f-41fe-81dd-4fe4b186dab4 ro
  ProcVersionSignature: Ubuntu 6.5.0-14.14~22.04.1-generic 6.5.3
  RelatedPackageVersions:
   linux-restricted-modules-6.5.0-14-generic N/A
   linux-backports-modules-6.5.0-14-generic  N/A
   linux-firmware                            20220329.git681281e4-0ubuntu3.23
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  Tags:  jammy
  Uname: Linux 6.5.0-14-generic x86_64
  UpgradeStatus: Upgraded to jammy on 2023-05-02 (253 days ago)
  UserGroups: N/A
  _MarkForUpload: True
  dmi.bios.date: 11/12/2020
  dmi.bios.release: 4.6
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 6.00
  dmi.board.name: 440BX Desktop Reference Platform
  dmi.board.vendor: Intel Corporation
  dmi.board.version: None
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.ec.firmware.release: 0.0
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd11/12/2020:br4.6:efr0.0:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:sku:
  dmi.product.name: VMware Virtual Platform
  dmi.product.version: None
  dmi.sys.vendor: VMware, Inc.
  ---
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: unknown
  DistroRelease: Ubuntu 22.04
  Package: linux-image-virtual-hwe-22.04-edge 6.5.0.17.17~22.04.9 [origin: unknown]
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 6.5.0-17.17~22.04.1-generic 6.5.8
  Tags: jammy third-party-packages
  Uname: Linux 6.5.0-17-generic x86_64
  UnreportableReason: This does not seem to be an official Ubuntu package. Please retry after updating the indexes of available packages, if that does not work then remove related third party packages and try again.
  UpgradeStatus: Upgraded to jammy on 2023-05-02 (266 days ago)
  UserGroups: N/A
  _MarkForUpload: True
  ---
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: unknown
  DistroRelease: Ubuntu 22.04
  Package: linux-image-6.5.0-17-generic 6.5.0-17.17~22.04.1 [origin: unknown]
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 6.5.0-17.17~22.04.1-generic 6.5.8
  Tags: jammy third-party-packages
  Uname: Linux 6.5.0-17-generic x86_64
  UnreportableReason: This does not seem to be an official Ubuntu package. Please retry after updating the indexes of available packages, if that does not work then remove related third party packages and try again.
  UpgradeStatus: Upgraded to jammy on 2023-05-02 (266 days ago)
  UserGroups: N/A
  _MarkForUpload: True

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