Ubuntu 20.10 (Groovy Gorilla) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: linux-azure (Ubuntu Groovy)
Status: New => Won't Fix
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You received this bug notification because you are a member of Canonical
Platform QA Team, which is subscribed to ubuntu-kernel-tests.
https://bugs.launchpad.net/bugs/1923114
Title:
ubuntu_kernel_selftests: ./cpu-on-off-test.sh: line 94: echo: write
error: Device or resource busy
Status in ubuntu-kernel-tests:
In Progress
Status in linux-azure package in Ubuntu:
New
Status in linux-azure-4.15 package in Ubuntu:
New
Status in linux-azure source package in Trusty:
New
Status in linux-azure-4.15 source package in Trusty:
New
Status in linux-azure source package in Xenial:
New
Status in linux-azure-4.15 source package in Xenial:
New
Status in linux-azure source package in Bionic:
New
Status in linux-azure-4.15 source package in Bionic:
New
Status in linux-azure source package in Groovy:
Won't Fix
Status in linux-azure-4.15 source package in Groovy:
Won't Fix
Bug description:
Test cpu-hotplug from ubuntu_kernel_selftests failed with
bionic:linux-azure-4.15 running on a Basic A2 with 2 cores (besides
other instance types):
selftests: cpu-on-off-test.sh
========================================
pid 28041's current affinity mask: 3
pid 28041's new affinity mask: 1
CPU online/offline summary:
present_cpus = 0-1 present_max = 1
Cpus in online state: 0-1
Cpus in offline state: 0
Limited scope test: one hotplug cpu
(leaves cpu in the original state):
online to offline to online: cpu 1
not ok 1..1 selftests: cpu-on-off-test.sh [FAIL]
./cpu-on-off-test.sh: line 94: echo: write error: Device or resource busy
offline_cpu_expect_success 1: unexpected fail
http://10.246.72.46/4.15.0-1112.124~16.04.1-azure/xenial-linux-azure-
azure-
amd64-4.15.0-Basic_A2-ubuntu_kernel_selftests/ubuntu_kernel_selftests/results/ubuntu_kernel_selftests.cpu-
hotplug/debug/ubuntu_kernel_selftests.cpu-hotplug.DEBUG.html
The problem happens at "autotest-client-
tests/ubuntu_kernel_selftests/cpu-on-off-test.sh" when executing:
echo 0 > $SYSFS/devices/system/cpu/cpu$1/online
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