This will timeout on B-4.15 s390x zVM (passed on s390x LPAR):
memcg_stat_rss 4 TINFO: Starting test 4
sh: echo: I/O error
memcg_stat_rss 4 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
memcg_stat_rss 4 TINFO: Running memcg_process --mmap-anon --mmap-file --shm -s 135168
memcg_stat_rss 4 TINFO: Warming up pid: 33885
memcg_stat_rss 4 TINFO: Process is still here after warm up: 33885
memcg_stat_rss 4 TBROK: timeouted on memory.usage_in_bytes
This will timeout on B-4.15 s390x zVM (passed on s390x LPAR): memory. use_hierarchy to 0 failed usage_in_ bytes
memcg_stat_rss 4 TINFO: Starting test 4
sh: echo: I/O error
memcg_stat_rss 4 TINFO: set /dev/memcg/
memcg_stat_rss 4 TINFO: Running memcg_process --mmap-anon --mmap-file --shm -s 135168
memcg_stat_rss 4 TINFO: Warming up pid: 33885
memcg_stat_rss 4 TINFO: Process is still here after warm up: 33885
memcg_stat_rss 4 TBROK: timeouted on memory.