On 17/01/2019 13:25, Aleksa Sarai wrote: > On 2019-01-17, Arkadiusz Miśkiewicz <a.miskiewicz@xxxxxxxxx> wrote: >> Using kernel 4.19.13. >> >> For one cgroup I noticed weird behaviour: >> >> # cat pids.current >> 60 >> # cat cgroup.procs >> # > > Are there any zombies in the cgroup? pids.current is linked up directly > to __put_task_struct (so exit(2) won't decrease it, only the task_struct > actually being freed will decrease it). > There are no zombie processes. In mean time the problem shows on multiple servers and so far saw it only in cgroups that were OOMed. What has changed on these servers (yesterday) is turning on memory.oom.group=1 for all cgroups and changing memory.high from 1G to "max" (leaving memory.max=2G limit only). Previously there was no such problem. -- Arkadiusz Miśkiewicz, arekm / ( maven.pl | pld-linux.org )