Cgroup hung system with rt patch, tested under 4.4.32/4.4.66/4.9.30

From	Journey Journey <journeywang123@gmail.com>
Newsgroups	linux.kernel
Subject	Cgroup hung system with rt patch, tested under 4.4.32/4.4.66/4.9.30
Date	2017-06-05 06:10 +0200
Message-ID	<tORv4-6jd-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi RT Devs,

I enabled cpu/cpuacct/cpuset/devices/freezer subsystems in cgroup.

Attach serveral thread ids to these systems' tasks file frequently
last 4 or 5 hours(start process,  echo thread ids to tasks, stop
process). The system will hung, no response to user keyboard input.
Through I have enabled kdmp, but this scenario didn't trigger kdump.

Pls help.


Thanks

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Cgroup hung system with rt patch, tested under 4.4.32/4.4.66/4.9.30 Journey Journey <journeywang123@gmail.com> - 2017-06-05 06:10 +0200
  Re: Cgroup hung system with rt patch, tested under 4.4.32/4.4.66/4.9.30 Journey Journey <journeywang123@gmail.com> - 2017-06-05 15:00 +0200

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