This bug is awaiting verification that the linux-oracle/5.4.0-1099.108
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-focal' to 'verification-done-focal'. If the
problem still exists, change the tag 'verification-needed-focal' to
'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-focal-linux-oracle

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-aws in Ubuntu.
https://bugs.launchpad.net/bugs/2009325

Title:
  NFS deathlock with last Kernel 5.4.0-144.161 and 5.15.0-67.74

Status in linux package in Ubuntu:
  In Progress
Status in linux-aws package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Fix Released
Status in linux-aws source package in Bionic:
  Fix Released
Status in linux source package in Focal:
  Fix Released
Status in linux-aws source package in Focal:
  Fix Released
Status in linux source package in Jammy:
  Fix Released
Status in linux-aws source package in Jammy:
  Fix Released
Status in linux source package in Kinetic:
  Fix Released
Status in linux-aws source package in Kinetic:
  Fix Released
Status in linux source package in Lunar:
  In Progress
Status in linux-aws source package in Lunar:
  Invalid

Bug description:
  After updating on the kernel 
  5.4.0-144.161 at Ubuntu 18 and 
  5.15.0-67.74 at Ubuntu 20, 
  we have a 100% CPU outlation and 20 to 30 Mbit traffic to the clients for our 
NFS servers.

  All clients are extremely slow when it comes to access to the NFS
  resources.

  Restart and use older kernel, fixed the problem.
  Ubuntu 18 5.4.0-139-generic
  Ubuntu 20 5.15.0-60-Generic
  I don't have a NFS problem with this kernel.

  Problem came with the last releas on March 3rd, 2023
  --- 
  ProblemType: Bug
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Mär  4 15:00 seq
   crw-rw---- 1 root audio 116, 33 Mär  4 15:00 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.11-0ubuntu27.25
  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:
  CasperMD5CheckResult: skip
  DistroRelease: Ubuntu 20.04
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  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:
   
  ProcFB: 0 svgadrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-67-generic 
root=/dev/mapper/vg1-root ro net.ifnames=0 biosdevname=0 kvm.nx_huge_pages=auto 
elevator=noop
  ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
  RelatedPackageVersions:
   linux-restricted-modules-5.15.0-67-generic N/A
   linux-backports-modules-5.15.0-67-generic  N/A
   linux-firmware                             1.187.36
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  Tags:  focal
  Uname: Linux 5.15.0-67-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  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
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Mär  4 15:03 seq
   crw-rw---- 1 root audio 116, 33 Mär  4 15:03 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.9-0ubuntu7.28
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 
'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  DistroRelease: Ubuntu 18.04
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  MachineType: VMware, Inc. VMware Virtual Platform
  Package: linux (not installed)
  PciMultimedia:
   
  ProcFB: 0 svgadrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-43-generic 
root=/dev/mapper/vg1-root ro net.ifnames=0 biosdevname=0 kvm.nx_huge_pages=auto 
elevator=noop
  ProcVersionSignature: Ubuntu 5.0.0-43.47~18.04.1-generic 5.0.21
  RelatedPackageVersions:
   linux-restricted-modules-5.0.0-43-generic N/A
   linux-backports-modules-5.0.0-43-generic  N/A
   linux-firmware                            1.173.21
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  Tags:  bionic
  Uname: Linux 5.0.0-43-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 12/12/2018
  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.modalias: 
dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd12/12/2018:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
  dmi.product.name: VMware Virtual Platform
  dmi.product.version: None
  dmi.sys.vendor: VMware, Inc.

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