On Tue, Mar 15, 2016 at 08:43:04PM -0400, Tejun Heo wrote:
> Before 2e91fa7f6d45 ("cgroup: keep zombies associated with their
> original cgroups"), all dead tasks were associated with init_css_set.
> If a zombie task is requested for migration, while migration prep
> operations would still be perfo
On Wed, Mar 16, 2016 at 11:45:27AM +0100, Peter Zijlstra wrote:
> This doesn't fix the problem that those zombies might actually still
> want to use the cgroups they're tied to, as reported here:
>
> lkml.kernel.org/r/20160314112057.gt6...@twins.programming.kicks-ass.net
>
> I would strongly su
On Tue, Mar 15, 2016 at 08:43:04PM -0400, Tejun Heo wrote:
> Before 2e91fa7f6d45 ("cgroup: keep zombies associated with their
> original cgroups"), all dead tasks were associated with init_css_set.
> If a zombie task is requested for migration, while migration prep
> operations would still be perfo
Before 2e91fa7f6d45 ("cgroup: keep zombies associated with their
original cgroups"), all dead tasks were associated with init_css_set.
If a zombie task is requested for migration, while migration prep
operations would still be performed on init_css_set, the actual
migration would ignore zombie task
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