cpu_hotplug test in ubuntu_kernel_selftest failed on Moonshot ARM64
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubuntu-kernel-tests |
Triaged
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
Xenial |
New
|
Undecided
|
Unassigned | ||
Bionic |
New
|
Undecided
|
Unassigned | ||
Disco |
Won't Fix
|
Undecided
|
Unassigned |
Bug Description
Test failed with "Operation not supported" when trying to offline a CPU:
echo 0 > $SYSFS/
This issue cannot be reproduced on CaviumThunderX ARM64 server, just the moonshots.
$ sudo make -C linux/tools/
make: Entering directory '/home/
make[1]: Entering directory '/home/
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/
make[1]: Entering directory '/home/
TAP version 13
selftests: cpu-hotplug: cpu-on-off-test.sh
=======
pid 8132's current affinity mask: ff
pid 8132's new affinity mask: 1
CPU online/offline summary:
Cpus in online state: 0-7
Cpus in offline state: 0
Limited scope test: one hotplug cpu
(leaves cpu in the original state):
online to offline to online: cpu 7
./cpu-on-
offline_
not ok 1..1 selftests: cpu-hotplug: cpu-on-off-test.sh [FAIL]
make[1]: Leaving directory '/home/
make: Leaving directory '/home/
The CPU hotplug config was enabled on this SUT:
$ cat /boot/config-`uname -r` | grep HOTPLUG | grep CPU
CONFIG_
CONFIG_
# CONFIG_
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: linux-image-
ProcVersionSign
Uname: Linux 4.18.0-13-generic aarch64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Dec 25 04:01 seq
crw-rw---- 1 root audio 116, 33 Dec 25 04:01 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.10-0ubuntu13.1
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: Tue Dec 25 04:54:54 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:
ProcFB:
ProcKernelCmdLine: console=
RelatedPackageV
linux-
linux-
linux-firmware 1.175.1
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
tags: | added: cscc |
tags: | added: ubuntu-kernel-selftests |
tags: | added: sru-20191202 |
Changed in ubuntu-kernel-tests: | |
status: | New → Incomplete |
status: | Incomplete → Triaged |
Changed in linux (Ubuntu Disco): | |
status: | Confirmed → Won't Fix |
summary: |
- cpu_hot_plug test in ubuntu_kernel_selftest failed on Moonshot ARM64 + cpu_hotplug test in ubuntu_kernel_selftest failed on Moonshot ARM64 |
This change was made by a bot.