netdev - Re: e1000 driver and samba

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Message-ID: <780b6f780709141737w4e17f0a8r944555f27f7344dd@mail.gmail.com>
Date:	Fri, 14 Sep 2007 20:37:26 -0400
From:	"L F" <lfabio.linux@...il.com>
To:	"Kok, Auke" <auke-jan.h.kok@...el.com>
Cc:	netdev@...r.kernel.org
Subject: Re: e1000 driver and samba

> can you describe your setup a bit more in detail? you're writing from a linux
> client to a windows smb server? or even to a linux server? which end sees the
> connection drop? the samba server? the samba linux client?
Certainly.
I have a LAN, with two switches in a stack. There currently are 7
WinXP clients and one linux machine. The linux machine acts as a samba
server and as a firewall/gateway.
The two ports of the PRO/1000 in the linux box are connected to the
LAN (eth4) and to a Comcast modem (eth3) respectively. Shorewall 3.4.5
is running on the linux machine, with a strong firewall + NAT setup.
Further, the linux machine currently has a tap device bridged into the
LAN side, for virtualbox.
Therefore, eth3 is a plain ethernet interface. br0, on the lan side,
is tap0 + eth4.
If I get any client on the LAN side, I can read from the linux box
without a problem. However, if I attempt to write to the linux box
from a LANside client, it will fail. If traffic is low, the failures
are sporadic. If traffic is high (large file and/or multiple incoming
files) the failure is guaranteed, either in 'delayed write fail' mode
on the client or in silent corruption of the file (much worse). If
read/write activity is combined, for instance when I unzip a zip
archive to its own directory, failure is guaranteed and rapid, with a
'delayed write fail' on the client after 50MB or so.
I can post .config and anything else you may want if you require it. I
tried changing cable as you suggested with little success. I'll try
changing switch port, just to cover all bases.
>
> Auke
>
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