Re: [PATCH 12/25] netns ct: actualy enable in netns

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Alexey Dobriyan wrote:
Known to not work/broken:
1) event cache -- double free if netns flushes event cache, not netns-ready,
   haven't looked into this.

The event cache also needs to be per namespace, its not allowed to
be flushed it while connection tracking is still active.

2) NOTRACK -- amazing circular dependencies and compile breakages if nf_conn
   is embedded into netns_ct.

   This is easy excuse, real excuse is from where to grab netns that early.
   and since we wait until untracked refcount drops to zero it should be per-netns
   otherwise one netns which uses NOTRACK can prevent other from stopping.

Yes. For untracked connections we usually return before doing
any real work, so maybe you don't need a valid netns pointer
for the untrack conntrack entry?
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