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I found this very interessting. we using lvs with eepro cards (kernel
2.2.17) and encountered a TX packets value stopping at 2147483647 (2^32-1)
thats what ifconfig tells...the system still runs fine ...
it seems to be a ifconfig Bug...
>> eth0 Link encap:Ethernet HWaddr 00:90:27:50:A8:DE
>> inet addr:172.16.0.20 Bcast:172.16.255.255 Mask:255.255.0.0
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:15 errors:288850 dropped:0 overruns:0 frame:0
>> TX packets:2147483647 errors:1 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:100
>> Interrupt:10 Base address:0xd000
>
>> Check out the TX packets number! That's 2^31-1.
>
[...]
>
> This is absolutely dreadful. Is this 'feature' a
> property of the eepro100
> driver, or something in the kernel itself?
> Either way, it's a killer. Gotta get to the bottom of it.
>
> Standard 2.2.12/2.2.13 kernels, with included eepro100 code.
>
>Hmmm, I have a couple of eepro100-based linux routers - the one thats been
up
>the longest is working fine (167 days, kernel 2.2.9) but the counters are
>jammed - for example, `ifconfig eth0' gives:
>eth0 Link encap:Ethernet HWaddr 00:90:27:2A:55:48
> inet addr:138.37.88.251 Bcast:138.37.88.255 Mask:255.255.255.0
> IPX/Ethernet 802.2 addr:8A255800:0090272A5548
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:2147483647 errors:41 dropped:0 overruns:1 frame:0
> TX packets:2147483647 errors:13 dropped:0 overruns:715 carrier:0
> Collisions:0
> Interrupt:15 Base address:0xa000
>BUT /proc/net/dev reports something more believable:
>hammer:/# cat net/dev
>Inter-| Receive | Transmit
>face |bytes packets errs drop fifo frame compressed multicast|bytes
packets errs drop fifo >colls carrier compressed
> eth0:2754574912 2177325200 41 0 1 0 0 0 2384782514 3474415357 13 0 715 0
0 0
>Thats RX packets: 2177325200
>and TX packets: 3474415357
>compared to : 2147483647 from ifconfig eth0
>So to me, it looks like neither the kernel (or the eepro100.c part thereof)
>have a problem, rather that ifconfig isn't reporting the values correctly -
>which shouldn't have any impact on machine stability.
>Could your network hang be a coincidence?
>Simon
>Simon A. Boggis Systems Programmer
>Department of Computer Science,
>Queen Mary and Westfield College London, E1 4NS, UK. Telephone 0171 975
5234
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