** Tags added: 5.4 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure-4.15 in Ubuntu. 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: New Status in linux-azure-4.15 source package in Groovy: New 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1923114/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
