For Xenial openstack ARM64 instance, this test has failed since 4.4.0-259 (s2024.08.05). Older kernels <= 4.4.0-258 (s2024.07.08) passed with:
INFO: Test start time: Wed Aug 7 14:03:01 UTC 2024 COMMAND: /opt/ltp/bin/ltp-pan -q -e -S -a 13105 -n 13105 -f /tmp/ltp-CDegA0gnTg/alltests -l /dev/null -C /dev/null -T /dev/null LOG File: /dev/null FAILED COMMAND File: /dev/null TCONF COMMAND File: /dev/null Running tests....... Name: cpuhotplug02 Date: Wed Aug 7 14:03:01 UTC 2024 Desc: What happens to a process when its CPU is offlined? CPU is 1 cpuhotplug02 1 TPASS: turned off CPU 1, process migrated to CPU 0 INFO: ltp-pan reported all tests PASS LTP Version: 20230929-609-g3fc2d1b INFO: Test end time: Wed Aug 7 14:03:13 UTC 2024 So I have it tested manually with -250 and -258, but now none of them are working with the cpuhotplug02 test. The failure occurs when trying to put cpu1 back online (something like `echo 1 | sudo tee /sys/devices/system/cpu/cpu1`) [ 28.158920] LTP: starting cpuhotplug02 (cpuhotplug02.sh -c 1 -l 1) [ 33.201872] IRQ5 no longer affine to CPU1 [ 33.201934] IRQ39 no longer affine to CPU1 [ 33.201937] select_fallback_rq: 15 callbacks suppressed [ 33.201938] process 1584 (cpuhotplug_do_s) no longer affine to cpu1 [ 33.201960] CPU1: shutdown [ 33.201967] psci: CPU1 killed (polled 0 ms) [ 33.257957] CPU features: CPU1: missing arm64_hwcaps : COMPAT_HWCAP2_SHA2 [ 34.257771] CPU1: failed to come online To reproduce this manually, just simply offline / online cpu1. I am not sure why it's working with -258 and older kernels in our test history. (they're all tested with the same LTP version) ** Tags added: 4.4 arm64 sru-s20240805 sru-s20240902 xenial -- 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/2025758 Title: cpuhotplug:cpuhotplug02 fails on lunar:linux-aws with cpuhotplug:cpuhotplug02 Status in ubuntu-kernel-tests: New Bug description: lunar:linux-aws-1007 CPU is 1 /opt/ltp/testcases/bin/cpuhotplug02.sh: 78: echo: echo: I/O error cpuhotplug02 1 TBROK: CPU1 cannot be onlined INFO: ltp-pan reported some tests FAIL It failed on c3.xlarge, c4.large, x1e.large. Other instances trigger an early bailout and same thing happened on previous versions: system doesn't have required CPU hotplug support because no_cpu < 2 and the test is not actually run. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2025758/+subscriptions -- Mailing list: https://launchpad.net/~canonical-ubuntu-qa Post to : canonical-ubuntu-qa@lists.launchpad.net Unsubscribe : https://launchpad.net/~canonical-ubuntu-qa More help : https://help.launchpad.net/ListHelp
