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SubjectRe: [PATCH v2] Document /proc/pid PID reuse behavior
On Wed 07-11-18 16:10:01, Daniel Colascione wrote:
> On Wed, Nov 7, 2018 at 4:00 PM, Michal Hocko <mhocko@kernel.org> wrote:
[...]
> > If you really do care about pid space depletion then you
> > should use pid cgroup controller.
>
> Or that, sure. But since cgroups are optional, the problem with the
> core model remains. In general, if there's a problem X with the core
> system API, and you can mitigate X by using a cgroup, X is still a
> problem.

I am not questioning that. All that I am saying is that there is a way to
mitigate the issue. This is not the only resource where the standard
rlimit is not sufficient and there is no other way than cgroups.
Actually cgroups were introduced to address rlimit limits IIRC.

--
Michal Hocko
SUSE Labs

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