canonical-ubuntu-qa team mailing list archive

[Jacob Martin <2085826@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Test pids_9_2 of ubuntu_ltp_controllers was observed to fail on node
akis with kernel N-nvidia version 6.8.0-1017.19.

 pids 1 TINFO: Running: pids.sh 9 2 0
 pids 1 TINFO: Tested kernel: Linux akis 6.8.0-1017-nvidia #19-Ubuntu SMP PREEMPT_DYNAMIC Thu Oct 17 16:33:23 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
 pids 1 TINFO: timeout per run is 0h 5m 0s
 pids 1 TINFO: test starts with cgroup version 2
 pids 1 TINFO: Running testcase 9 with 2 processes
 pids 1 TINFO: migrate cgroup
 pids 1 TPASS: migrate pid 716560 from cgroup1 to cgroup2 as expected
 pids 1 TPASS: migrate child1 cgroup as expected
 pids 1 TPASS: migrate child2 cgroup as expected
 pids 1 TPASS: child1 fork worked as expected
 pids 1 TPASS: child2 fork failed as expected
 rmdir: failed to remove '/sys/fs/cgroup/ltp/test-716519/child1': Device or resource busy
 tst_cgroup.c:1028: TBROK: unlinkat(5, 'test-716519', AT_REMOVEDIR): EBUSY (16)
 pids 2 TWARN: tst_cgctl cleanup ctrl_name ver we_require_it mnt_path we_mounted_it ltp_dir.we_created_it test_dir.dir_name
 memory    2    0    /sys/fs/cgroup    0    -1    test-716519
 cpu    2    0    /sys/fs/cgroup    0    -1    test-716519
 io    2    0    /sys/fs/cgroup    0    -1    test-716519
 pids    2    -1    /sys/fs/cgroup    0    -1    test-716519
 hugetlb    2    0    /sys/fs/cgroup    0    -1    test-716519
 misc    2    0    /sys/fs/cgroup    0    -1    test-716519
 rdma    2    0    /sys/fs/cgroup    0    -1    test-716519 failed
 pids 2 TINFO: AppArmor enabled, this may affect test results
 pids 2 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
 pids 2 TINFO: loaded AppArmor profiles: none
 
 Summary:
 passed   5
 failed   0
 broken   0
 skipped  0
 warnings 1

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New

** Summary changed:

- ubuntu_ltp_controllers pids_9_2 
+ ubuntu_ltp_controllers pids_9_2 fails with TBROK: unlinkat EBUSY

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https://bugs.launchpad.net/bugs/2085826

Title:
  ubuntu_ltp_controllers pids_9_2 fails with TBROK: unlinkat EBUSY

Status in ubuntu-kernel-tests:
  New

Bug description:
  Test pids_9_2 of ubuntu_ltp_controllers was observed to fail on node
  akis with kernel N-nvidia version 6.8.0-1017.19.

   pids 1 TINFO: Running: pids.sh 9 2 0
   pids 1 TINFO: Tested kernel: Linux akis 6.8.0-1017-nvidia #19-Ubuntu SMP PREEMPT_DYNAMIC Thu Oct 17 16:33:23 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
   pids 1 TINFO: timeout per run is 0h 5m 0s
   pids 1 TINFO: test starts with cgroup version 2
   pids 1 TINFO: Running testcase 9 with 2 processes
   pids 1 TINFO: migrate cgroup
   pids 1 TPASS: migrate pid 716560 from cgroup1 to cgroup2 as expected
   pids 1 TPASS: migrate child1 cgroup as expected
   pids 1 TPASS: migrate child2 cgroup as expected
   pids 1 TPASS: child1 fork worked as expected
   pids 1 TPASS: child2 fork failed as expected
   rmdir: failed to remove '/sys/fs/cgroup/ltp/test-716519/child1': Device or resource busy
   tst_cgroup.c:1028: TBROK: unlinkat(5, 'test-716519', AT_REMOVEDIR): EBUSY (16)
   pids 2 TWARN: tst_cgctl cleanup ctrl_name ver we_require_it mnt_path we_mounted_it ltp_dir.we_created_it test_dir.dir_name
   memory    2    0    /sys/fs/cgroup    0    -1    test-716519
   cpu    2    0    /sys/fs/cgroup    0    -1    test-716519
   io    2    0    /sys/fs/cgroup    0    -1    test-716519
   pids    2    -1    /sys/fs/cgroup    0    -1    test-716519
   hugetlb    2    0    /sys/fs/cgroup    0    -1    test-716519
   misc    2    0    /sys/fs/cgroup    0    -1    test-716519
   rdma    2    0    /sys/fs/cgroup    0    -1    test-716519 failed
   pids 2 TINFO: AppArmor enabled, this may affect test results
   pids 2 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
   pids 2 TINFO: loaded AppArmor profiles: none
   
   Summary:
   passed   5
   failed   0
   broken   0
   skipped  0
   warnings 1

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