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[Mehmet Basaran <1836169@xxxxxxxxxxxxxxxxxx>]

Got this on testflinger:igor (arm64) | bunsen (amd64) for jammy:linux-
lowlatency-hwe-6.8 6.8.0-48.48.3~22.04.1

Test code is simple and seems correct. cpuhotplug04.sh:81
"get_hotplug_cpus" call returns out-of-order (cpu31 != last cpu). I
think failure is due to instance. Test passes on fava (amd64).


14:39:52 DEBUG| INFO: Test start time: Mon Oct 21 14:39:49 UTC 2024
14:39:52 DEBUG| COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 292121     -n 292121  -f /tmp/ltp-GW20pdJKtG/alltests -l /dev/null  -C /dev/null -T /dev/null
14:39:52 DEBUG| LOG File: /dev/null
14:39:52 DEBUG| FAILED COMMAND File: /dev/null
14:39:52 DEBUG| TCONF COMMAND File: /dev/null
14:39:52 DEBUG| Running tests.......
14:39:52 DEBUG| Name:   cpuhotplug04
14:39:52 DEBUG| Date:   Mon Oct 21 14:39:49 UTC 2024
14:39:52 DEBUG| Desc:   Does it prevent us from offlining the last CPU?
14:39:52 DEBUG| 
14:39:52 DEBUG| /opt/ltp/testcases/bin/cpuhotplug04.sh: 99: echo: echo: I/O error
14:39:52 DEBUG| cpuhotplug04 1 TFAIL: Could not offline cpu31
14:39:52 DEBUG| INFO: ltp-pan reported some tests FAIL
14:39:52 DEBUG| LTP Version: 20230929-874-gba610da01
14:39:52 DEBUG| INFO: Test end time: Mon Oct 21 14:39:52 UTC 2024

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https://bugs.launchpad.net/bugs/1836169

Title:
  cpuhotplug04 in cpuhotplug from ubuntu_ltp failed on amd64/ARM64
  (TFAIL: Could not offline cpuXX)

Status in ubuntu-kernel-tests:
  Triaged
Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Bionic:
  Confirmed
Status in linux source package in Cosmic:
  Won't Fix
Status in linux source package in Disco:
  Won't Fix
Status in linux source package in Focal:
  Confirmed
Status in linux source package in Jammy:
  Confirmed

Bug description:
  This issue can be found on both ThunderX and Moonshot ARM64

  <<<test_output>>>
  incrementing stop
  Name:   cpuhotplug04
  Date:   Thu Jul 11 08:34:50 UTC 2019
  Desc:   Does it prevent us from offlining the last CPU?

  sh: echo: I/O error
  cpuhotplug04 1 TFAIL: Could not offline cpu0
  <<<execution_status>>>
  initiation_status="ok"
  duration=0 termination_type=exited termination_id=1 corefile=no
  cutime=9 cstime=4
  <<<test_end>>>

  Steps to run this test:
    git clone --depth=1 https://github.com/linux-test-project/ltp.git
    cd ltp; make autotools; ./configure; make; sudo make install
    echo "cpuhotplug04 cpuhotplug04.sh -l 1" > /tmp/jobs
    sudo /opt/ltp/runltp -f /tmp/jobs

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: linux-image-4.18.0-25-generic 4.18.0-25.26
  ProcVersionSignature: User Name 4.18.0-25.26-generic 4.18.20
  Uname: Linux 4.18.0-25-generic aarch64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jul 11 06:57 seq
   crw-rw---- 1 root audio 116, 33 Jul 11 06:57 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.10-0ubuntu13.4
  Architecture: arm64
  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:
  Date: Thu Jul 11 08:28:42 2019
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  PciMultimedia:
   
  ProcFB:
   
  ProcKernelCmdLine: console=ttyS0,9600n8r ro
  RelatedPackageVersions:
   linux-restricted-modules-4.18.0-25-generic N/A
   linux-backports-modules-4.18.0-25-generic  N/A
   linux-firmware                             1.175.6
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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