Looks like this is not failing on Impish Oracle. For other kernels, failing cases are: * memcg_regression * memcg_failcnt * memcg_force_empty * memcg_limit_in_bytes * memcg_stat_rss * memcg_subgroup_charge * memcg_max_usage_in_bytes * memcg_move_charge_at_immigrate * memcg_memsw_limit_in_bytes * memcg_stat * memcg_use_hierarchy * memcg_usage_in_bytes * memcg_stress * memcg_control * cgroup_fj_function_cpuset * cgroup_fj_function_cpu * cgroup_fj_function_memory * cgroup_fj_function_blkio * cgroup_fj_stress_cpuset_* * cgroup_fj_stress_cpu_* * cgroup_fj_stress_memory_* * cgroup_fj_stress_blkio_* * cpuset_regression_test * pids_*
Here is the complete test report from bug 1949079 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1949079/+attachment/5536760/+files/sru-gcp-gcp-e2-standard-2-ubuntu_ltp_controllers-log.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1949532 Title: ubuntu_ltp_controllers tests failing on Impish ($cgroup_name already mounted or mount point busy) Status in ubuntu-kernel-tests: New Status in linux package in Ubuntu: Incomplete Status in linux source package in Impish: Confirmed Bug description: Almost half of the ubuntu_ltp_controllers tests (142 out of 198) are failing due to the general pattern 'cgroup_name already mounted or mount point busy' causing the tests to fail. e.g. mount: /dev/cgroup: ltp_cgroup already mounted or mount point busy. cgroup_fj_function2_memory 1 TBROK: mount -t cgroup -o memory ltp_cgroup /dev/cgroup failed From investigation it seems there could be an issue with the transition to cgroup-v2. There have been rumors on the ltp mailing list that one of these days the tests could break due to the transition. Switching to cgroup-v2, likely due to a systemd update, could cause these tests to break due to different mount and cgroup hierarchy semantics. I could only reproduce a subset of the new failures we are seeing, but after setting systemd.unified_cgroup_hierarchy=0 on the kernel command line which sets cgroup back to v1, a lot of the failures I could produce went away. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1949532/+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
