1 Dec
2021
1 Dec
'21
4:39 p.m.
On Wed, Dec 01, 2021 at 09:56:21AM -0500, Waiman Long wrote:
Right, I shouldn't say corner cases. Having task in an intermediate partition is possible depending on event sequence. I am aware that there are code in the cpuset code to prevent that, but it didn't block all cases.
A valid parent partition may distribute out all its CPUs to its child partitions as long as there is no task associated with it.
Assuming there's always at least one kernel thread in the root cgroup that can't be migrated anyway.]
I am aware of that. That is why I said root cgroup must have at least one cpu in its "cpuset.cpus.effective".
In that case, let's explicitly describe that condition.
Thanks.
--
tejun