2013-08-22 09:01:44

by Alexey Vlasov

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Subject: There is strange packets dropping on new kernels

Hi.

I noticed that tcpdump shows many dropped packets on new kernels.
It looks like that:

# tcpdump -n -i eth0 -c 10
...
10 packets captured
10 packets received by filter
0 packets dropped by kernel
4294967268 packets dropped by interface
# uname -r
3.10.7

On old kernels the same command doesn't drop anything.
# tcpdump -n -i eth0 -c 10
10 packets captured
140 packets received by filter
0 packets dropped by kernel
# uname -r
3.8.11

What can I do to fix it? Or is it right?
Thanks.

--
BRGDS. Alexey Vlasov.


2013-08-22 13:11:04

by Alexey Vlasov

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Subject: Re: There is strange packets dropping on new kernels

On Thu, Aug 22, 2013 at 12:51:24PM +0200, Paul Rolland wrote:
>
> Looks like you are not using the same tcpdump... Could it be a bug related
> to that application ?

You are right. Then problem is in new version of tcpdump.
Thanks.

--
BRGDS. Alexey Vlasov.