Fw: [Bug 212317] New: /proc/net/dev: reversed counter for network namespaces?

Fw: [Bug 212317] New: /proc/net/dev: reversed counter for network namespaces?

[Stephen Hemminger]

Begin forwarded message:

Date: Wed, 17 Mar 2021 14:14:36 +0000
From: bugzilla-daemon@bugzilla.kernel.org
To: stephen@networkplumber.org
Subject: [Bug 212317] New: /proc/net/dev: reversed counter for network namespaces?


https://bugzilla.kernel.org/show_bug.cgi?id=212317

            Bug ID: 212317
           Summary: /proc/net/dev: reversed counter for network
                    namespaces?
           Product: Networking
           Version: 2.5
    Kernel Version: 5.10.23
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
          Assignee: stephen@networkplumber.org
          Reporter: steffen@sdaoden.eu
        Regression: No

Hello.
Yesterday i extended my tmux status line to include all "network devices", and
now i am looking at a line

  RF:W~B~ wlp1s0~158/16 wg0~6/2 browse~8/124

which are /proc/net/dev devices (less in-namespace stuff) with non-0 byte
counts.
wlp1s0 is the sole connection to the internet, and browse is a network
namespace that boxes graphical browser usage, and can only access the internet,
no local services (but DNS).

As you can see it states it has send 124 MiB and receives 8 MiB, which i deem
wrong, especially since the entire up/downstream bytes of wlp1s0 state
something different.  Could it be the counts are reversed?

Thank you!!

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