netdev - Fw: [Bug 98781] New: WWAN: TX bytes counter shows very huge impossible value

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Date:	Tue, 26 May 2015 08:38:57 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	netdev@...r.kernel.org
Subject: Fw: [Bug 98781] New: WWAN: TX bytes counter shows very huge
 impossible value



Begin forwarded message:

Date: Sat, 23 May 2015 16:54:50 +0000
From: "bugzilla-daemon@...zilla.kernel.org" <bugzilla-daemon@...zilla.kernel.org>
To: "shemminger@...ux-foundation.org" <shemminger@...ux-foundation.org>
Subject: [Bug 98781] New: WWAN: TX bytes counter shows very huge impossible value


https://bugzilla.kernel.org/show_bug.cgi?id=98781

            Bug ID: 98781
           Summary: WWAN: TX bytes counter shows very huge impossible
                    value
           Product: Networking
           Version: 2.5
    Kernel Version: 4.0.x
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
          Assignee: shemminger@...ux-foundation.org
          Reporter: mm@...erbash.de
        Regression: No

Since version 4.0.x the TX bytes counter of the WWAN module shows a weird
value.

Example:

$ > ifconfig wwan

wwan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet xxx.xxx.xxx.xxx  netmask 255.255.255.252  broadcast
xxx.xxx.xxx.xxx
        inet6 xxxx::xxxx:xxxx:xxxx:xxxx  prefixlen 64  scopeid 0x20<link>
        ether xx:xx:xx:xx:xx:xx  txqueuelen 1000  (Ethernet)
        RX packets 19036  bytes 19190321 (18.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 15874  bytes 43228847574631 (39.3 TiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

39.3 TiB - wow, absolutely not true

The WWAN is used as bridge to my internet provider (LTE usb stick)

I use the counter to control the traffic. It's only the TX counter, the RX
works ok.

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