On Fri, 14 Sep 2007, L F wrote:
> > 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.
Would it be worth a shot to try disabling the receiver hardware
checksumming (ethtool -K ethX rx off)?
-Bill
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