Public bug reported:
Issue found on Azure Disco kernel 5.0.0-1023.24
Test failed with:
/opt/ltp/testcases/bin/memcg_subgroup_charge.sh: 522: echo: echo: I/O error
tag=memcg_subgroup_charge stime=1570239843 dur=3 exit=exited stat=1 core=no
cu=7 cs=11
startup='Sat Oct 5 01:44:03 2019'
memcg_subgroup_charge 1 TINFO: Starting test 1
/opt/ltp/testcases/bin/memcg_subgroup_charge.sh: 522: echo: echo: I/O error
memcg_subgroup_charge 1 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
memcg_subgroup_charge 1 TINFO: Running memcg_process --mmap-anon -s 135168
memcg_subgroup_charge 1 TINFO: Warming up pid: 119041
memcg_subgroup_charge 1 TINFO: Process is still here after warm up: 119041
memcg_subgroup_charge 1 TPASS: rss is 135168 as expected
memcg_subgroup_charge 2 TPASS: rss is 0 as expected
memcg_subgroup_charge 3 TINFO: Starting test 2
/opt/ltp/testcases/bin/memcg_subgroup_charge.sh: 522: echo: echo: I/O error
memcg_subgroup_charge 3 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
memcg_subgroup_charge 3 TINFO: Running memcg_process --mmap-anon -s 135168
memcg_subgroup_charge 3 TINFO: Warming up pid: 119071
memcg_subgroup_charge 3 TINFO: Process is still here after warm up: 119071
memcg_subgroup_charge 3 TFAIL: rss is 0, 135168 expected
memcg_subgroup_charge 4 TPASS: rss is 0 as expected
memcg_subgroup_charge 5 TINFO: Starting test 3
/opt/ltp/testcases/bin/memcg_subgroup_charge.sh: 522: echo: echo: I/O error
memcg_subgroup_charge 5 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
memcg_subgroup_charge 5 TINFO: Running memcg_process --mmap-anon -s 135168
memcg_subgroup_charge 5 TINFO: Warming up pid: 119094
memcg_subgroup_charge 5 TINFO: Process is still here after warm up: 119094
memcg_subgroup_charge 5 TPASS: rss is 135168 as expected
memcg_subgroup_charge 6 TPASS: rss is 0 as expected
** Affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-azure (Ubuntu Disco)
Importance: Undecided
Status: New
** Tags: 5.0 amd64 disco sru-20190930 ubuntu-ltp
** Also affects: linux-azure (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-azure (Ubuntu Disco)
Importance: Undecided
Status: New
** Tags added: 5.0 amd64 disco sru-20190930 ubuntu-ltp
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https://bugs.launchpad.net/bugs/1847982
Title:
memcg_subgroup_charge from controllers in ubuntu_ltp failed on D-Azure
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