cpuhotplug04 in cpuhotplug from ubuntu_ltp failed on ARM64

Bug #1836169 reported by Po-Hsu Lin on 2019-07-11
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
Undecided
Unassigned
linux (Ubuntu)
Undecided
Unassigned
Cosmic
Undecided
Unassigned
Disco
Undecided
Unassigned

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)

Po-Hsu Lin (cypressyew) wrote :
tags: added: 4.18 sru-20190701 ubuntu-ltp

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Changed in linux (Ubuntu Cosmic):
status: New → Confirmed

On amd64 node naumann with Disco kernel, this test failed with:
 Name: cpuhotplug04
 Date: Mon Jul 8 17:22:01 UTC 2019
 Desc: Does it prevent us from offlining the last CPU?

 /opt/ltp/testcases/bin/cpuhotplug04.sh: 99: echo: echo: I/O error
 cpuhotplug04 1 TFAIL: Could not offline cpu95
 tag=cpuhotplug04 stime=1562606521 dur=59 exit=exited stat=1 core=no cu=44 cs=105

tags: added: 5.0 amd64 disco
Po-Hsu Lin (cypressyew) on 2019-07-25
summary: - cpuhotplug04 in cpuhotplug from ubuntu_ltp failed on C ARM64
+ cpuhotplug04 in cpuhotplug from ubuntu_ltp failed on ARM64
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