cpuset tests in ubuntu_ltp_controllers failed with "Could not mount cgroup filesystem with cpuset on /dev/cpuset"

Bug #1986636 reported by Po-Hsu Lin
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
New
Undecided
Unassigned

Bug Description

Issue found on Jammy 5.15.0-47.51 (only on Jammy, works with older kernels)

With LTP fork updated (bug 1982995) with Luke's fix for cgroups, tests are no longer failing with:
    $cgroup_name already mounted or mount point busy (bug 1949532)

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

Instead, the following 10 cpuset related tests:
 * cpuset_inherit
 * cpuset_base_ops
 * cpuset_exclusive
 * cpuset_hierarchy
 * cpuset_syscall
 * cpuset_sched_domains
 * cpuset_load_balance
 * cpuset_hotplug
 * cpuset_memory
 * cpuset_memory_pressure

Are now failing with:
$test_name 1 TFAIL: Could not mount cgroup filesystem with cpuset on /dev/cpuset..Exiting test

Complete output from one of them:
INFO: Test start time: Mon Aug 15 17:13:42 UTC 2022
COMMAND: /opt/ltp/bin/ltp-pan -q -e -S -a 737848 -n 737848 -f /tmp/ltp-LWz74HNpV1/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.......
cpuset_sched_domains 1 TINFO: CPUs are numbered continuously starting at 0 (0-255)
cpuset_sched_domains 1 TINFO: Nodes are numbered continuously starting at 0 (0-1)
cpuset_sched_domains 1 TFAIL: Could not mount cgroup filesystem with cpuset on /dev/cpuset..Exiting test
INFO: ltp-pan reported some tests FAIL
LTP Version: 20220527
INFO: Test end time: Mon Aug 15 17:13:42 UTC 2022

Po-Hsu Lin (cypressyew)
summary: - Tests in ubuntu_ltp_controllers failed with "Could not mount cgroup
- filesystem with cpuset on /dev/cpuset"
+ cpuset tests in ubuntu_ltp_controllers failed with "Could not mount
+ cgroup filesystem with cpuset on /dev/cpuset"
description: updated
description: updated
tags: added: sru-20220808
tags: added: 5.15 amd64 jammy ubuntu-ltp-controllers
Po-Hsu Lin (cypressyew)
description: updated
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.