Re: large packet loss take2 2.6.31.x

From: Jarek Poplawski
Date: Tue Nov 24 2009 - 08:46:41 EST


On Tue, Nov 24, 2009 at 11:19:46AM +0000, Jarek Poplawski wrote:
...
> Alas it's not all information I asked. E.g. "netstat -s before faulty
> kernel" and "netstat -s after faulty kernel" seem to be the same file:
> netstat_after.slave4.log.gz.

On the other hand, there is a lot of tcp retransmits there:

Tcp:
17 active connections openings
0 passive connection openings
14 failed connection attempts
0 connection resets received
0 connections established
45 segments received
49 segments send out
19 segments retransmited
0 bad segments received.
19 resets sent

So it might point at the driver yet. It would be interesting to see
more of this: could you repeat "netstat -s" and "ethtool -S eth0"
after rebooting with both kernels and doing a few minutes of similar
tcp activities (against the router or some other "good" site). Btw,
please remind us the exact kernel versions. If you can, try 2.6.32-rc8
instead of 2.6.31.

Jarek P.
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