On Mon, Feb 23, 2015 at 11:59:14 +0100, Bjørn Mork wrote:
> Aleksander Morgado <aleksander@xxxxxxxxxxxxx> writes:
>
> > On Tue, Feb 17, 2015 at 4:32 PM, Sami Farin <hvtaifwkbgefbaei@xxxxxxxxx> wrote:
> >> ifconfig
> >> wwp3s0u1c2: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1500
> >> inet 46.132.188.224 netmask 255.255.255.192 broadcast 46.132.188.255
> >> inet6 fe80:: prefixlen 64 scopeid 0x20<link>
> >> ether 32:35:3a:64:2e:25 txqueuelen 1000 (Ethernet)
> >> RX packets 0 bytes 0 (0.0 B)
> >> RX errors 17764 dropped 0 overruns 0 frame 0
> >> TX packets 6714 bytes 18446744073709268911 (1638.3 PiB)
> >> TX errors 1427 dropped 0 overruns 0 carrier 0 collisions 0
> >>
> >
> > That's a ton of RX errors in there, and an... unusual number of TX
> > bytes as well.
> >
> > Bjørn, any idea?
>
> Not really...
>
> The TX bytes definitely looks we managed to end up with a negative
> count: 18446744073709268911 = 2^64 - 282705
>
> Which I guess means that my new attempt to "correct" the tx_bytes
> counter in cdc_ncm_fill_tx_frame() must have gone bananas. Hmm, looks
> like that will happen if we fail to submit the urb for some reason. We
...
Now with kernel 4.0.0+ModemManager 1.4.8:
wwp5s0u1c2: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1500
inet 46.132.185.141 netmask 255.255.255.252 broadcast 46.132.185.143
ether 4a:2a:90:69:e7:ad txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 13 dropped 0 overruns 0 frame 0
TX packets 239 bytes 588410534190 (548.0 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wwp5s0u1c2: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1500
inet 46.132.185.141 netmask 255.255.255.252 broadcast 46.132.185.143
ether 4a:2a:90:69:e7:ad txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 14 dropped 0 overruns 0 frame 0
TX packets 240 bytes 592705501549 (552.0 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
so it's messing up passing of errors, 592705501549-588410534190=4294967359
2^32-4294967359=-63
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