> On Thu, 30 Sep 2004, David S. Miller wrote:
>
> > Please help debug this John since I'm not seeing this here.
Here's what I've observed now: on one machine I have interface hangs after
a non-deterministic amount of time (usually within a few seconds) with TSO
on if I'm sending at a reasonably high rate with a 1500 byte MTU. I get
no hangs with a 9000 byte mtu, or at a low rate (sending to a FastE host).
Interestingly, if the interface mtu is 9000, but I'm sending 1500 byte
packets, it does not seem to hang. On a different machine (both P4's with
e1000's) I get no hangs. The hangs happen even with 2.6.8.1 before the
recent TSO changes, so it's not a bug there. I looked at some tcpdumps
and saw no strangeness in the last segments sent.
The good machine has an e7500 chipset and a 82544EI. The bad machine has a
ServerWorks chipset and a 82545GM.
Any suggestions on where to look for what's going wrong with the
interface?
Thanks,
-John
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