cpuhotplug02 in cpuhotplug from ubuntu_ltp failed on C Moonshot ARM64

Bug #1836166 reported by Po-Hsu Lin
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
Won't Fix
Undecided
Krzysztof Kozlowski
linux (Ubuntu)
Invalid
Undecided
Unassigned
Cosmic
Invalid
Undecided
Unassigned

Bug Description

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 "cpuhotplug02 cpuhotplug02.sh -c 1 -l 1" > /tmp/jobs
  sudo /opt/ltp/runltp -f /tmp/jobs

<<<test_output>>>
incrementing stop
Name: cpuhotplug02
Date: Thu Jul 11 08:21:54 UTC 2019
Desc: What happens to a process when its CPU is offlined?

CPU is 1
sh: echo: I/O error
cpuhotplug02 1 TFAIL: process did not change from CPU 1
<<<execution_status>>>

Test passed on ThunderX ARM64, probably a test case issue.

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 08:22:09 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)

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Changed in linux (Ubuntu Cosmic):
status: New → Confirmed
Po-Hsu Lin (cypressyew)
summary: - cpuhotplug02 in cpuhotplug from ubuntu_ltp failed on C ARM64
+ cpuhotplug02 in cpuhotplug from ubuntu_ltp failed on C Moonshot ARM64
description: updated
tags: added: sru-20190701
Po-Hsu Lin (cypressyew)
tags: added: ubuntu-ltp
Revision history for this message
Kelsey Steele (kelsey-steele) wrote :

Spotted on Focal/azure : 5.4.0-1029.29 : amd64

tags: added: azure focal sru-20200921
tags: added: amd64
Revision history for this message
Kelsey Steele (kelsey-steele) wrote :

failed on Bionic/azure-4.15 : 4.15.0-1097.107 : amd64

tags: added: 4.15 bionic
tags: added: sru-20210104
tags: added: 5.4
Changed in ubuntu-kernel-tests:
assignee: nobody → Krzysztof Kozlowski (krzk)
Revision history for this message
Krzysztof Kozlowski (krzk) wrote :
Changed in ubuntu-kernel-tests:
status: New → In Progress
Changed in linux (Ubuntu):
status: Confirmed → Invalid
Changed in linux (Ubuntu Cosmic):
status: Confirmed → Invalid
Revision history for this message
Krzysztof Kozlowski (krzk) wrote :

To distinguish issues:
1. This bug is for test failures on ARM64 metal instances.
2. lp:1836167 and lp:1923191 are related (mostly) to cloud instances.

As for ARM64, I checked SRU 20210621 on appleton-kernel.arm64 and dazzle.arm64 instances:
 - focal/linux 5.4.0-79.88 on
 - focal/hwe-5.8 5.8.0-61.68~20.04.1
 - focal/hwe-5.11 5.11.0-24.25~20.04.1
 - hirsute/linux 5.11.0-24.25
cpuhotplug works there, so mark the bug as closed.

Changed in ubuntu-kernel-tests:
status: In Progress → Won't Fix
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