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Date:   Sat, 22 Oct 2016 00:37:01 -0700
From:   Andrey Vagin <>
To:     Cong Wang <>
Cc:     LKML <>,
        Linux Containers <>,
        Linux Kernel Network Developers <>,
        "David S. Miller" <>,
        "Eric W . Biederman" <>
Subject: Re: [PATCH] net: skip genenerating uevents for network namespaces
 that are exiting

Hi Cong,

On Thu, Oct 20, 2016 at 10:25 PM, Andrey Vagin <> wrote:
> On Thu, Oct 20, 2016 at 8:10 PM, Cong Wang <> wrote:
>> On Thu, Oct 20, 2016 at 7:46 PM, Andrei Vagin <> wrote:
>>> No one can see these events, because a network namespace can not be
>>> destroyed, if it has sockets.
>> Are you sure? kobject_uevent_env() seems sending uevents to all
>> network namespaces.
> kobj_bcast_filter() checks that a kobject namespace is equal to a
> socket namespace.

Today I've checked that it really works as I read from the source code.
I use this tool to read events:

And I see that events from non-network devices are delivered to all sockets,
but events from network devices are delivered only to sockets from
a network namespace where a device is operated.


>> _______________________________________________
>> Containers mailing list

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