[PATCH_v4.1_3/3] Make core_pattern support namespace
asarai at suse.de
Wed Aug 2 07:07:19 UTC 2017
> Currently, each container shared one copy of coredump setting
> with the host system, if host system changed the setting, each
> running containers will be affected.
> Same story happened when container changed core_pattern, both
> host and other container will be affected.
> For container based on namespace design, it is good to allow
> each container keeping their own coredump setting.
From what I can see, this is basically setting a per-pidns core_pattern
(which is hierarchically applied). I'm not sure this actually solves the
more general problem (that usermode helper settings aren't generally
namespace-aware) -- and what happens if you have processes in the same
pidns that have different mount namespaces?
If we _had_ to do it like this I would think it makes more sense to pin
it to mountns, but I was under the impression that someone was working
on making usermode helpers play nicer with namespaces.
Just my $0.02.
Software Engineer (Containers)
SUSE Linux GmbH
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