Hi Jochen,
Jochen Friedrich wrote:
>>On Dell em64t systems running the amd64 port of Debian, interfaces statistics
>>polled via snmp from remote hosts stop incrementing. I haven't tested
>>on other hardware so can only speak to Dell hardware at the moment. But
>>the bug shows up on every system running Debian's amd64 port. Systems
>>running the i386 port with 64bit kernels DO NOT exhibit this problem.
>
> I'm running snmpd on Alpha, which is also 64bit, and i can't reproduce
> this. Could you
> run "cat /proc/net/dev" on your machine after snmp stops working?
On a system running 5.1.2:
$ cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes
packets errs drop fifo colls carrier compressed
lo:16614789 400707 0 0 0 0 0 0
16614789 400707 0 0 0 0 0 0
eth0:1815249735 9609173 0 0 0 0 0 0
7193137948 6360542 0 0 0 0 0 0
eth1:335565863 3770061 0 0 0 0 0 0
10131073060 7034022 0 0 0 0 0 0
sit0: 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
That same system when polled remotely shows:
$ snmpwalk -v 1 -c community hostname ifInOctets
IF-MIB::ifInOctets.1 = Counter32: 16614789
IF-MIB::ifInOctets.2 = Counter32: 1815250769
IF-MIB::ifInOctets.3 = Counter32: 335565863
IF-MIB::ifInOctets.4 = Counter32: 0
$ snmpwalk -v 1 -c community hostname ifOutOctets
IF-MIB::ifOutOctets.1 = Counter32: 16614789
IF-MIB::ifOutOctets.2 = Counter32: 16614789
IF-MIB::ifOutOctets.3 = Counter32: 16614789
IF-MIB::ifOutOctets.4 = Counter32: 0
The /proc counters appear to be incrementing properly, as do the
ifInOctets. But the ifOutOctet counters are stuck at the values above.
I can send you the same information for 5.2.1 as soon as that system
starts exhibiting the problem (which I believe is only a matter of
time). Also, I haven't tried polling the data locally as I do not have
snmpget/snmpwalk installed on these machines. I'll try that later
today. The polling system used above is polling a lot of other machines
(it's sarge i386 on x86) so I'm pretty sure it's not at fault.
Thanks.
Regards,
Ed
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