Subject: Re: e1000 driver and samba

From: Rick Jones <[email-masked]>
Date: Mon, 17 Sep 2007 11:02:58 -0700

Kok, Auke wrote:
> L F wrote:
> 
>>>>>>tx_deferred_ok: 486
>>>
>>>this one I wonder about, and might cause delays, I'll have to look
>>>up what it exactly could implicate though.
>>
>>Please do and let me know. samba 3.0.26 helped, but the issue is
>>still there.
> 
> 
> ok, from the spec: tx_deferred_ok is what is in the DC stats register. DC stands
> for "Deferred Count". This initially is meant to track how often the TX unit cannot
> send because the medium is busy in a Half-Duplex link state.
> 
> To me it suggests that your speed is not full-duplex. Check `ethtool eth0` output
> and see if your link is full duplex or not. also check previous kernel messages
> and see what the e1000 driver posted there for link speed messages (as in "e1000:
>  Link is UP speed XXX duplex YYY")

Shouldn't there then have been at least _some_ collisions reported in 
the stats?  And perhaps some late collisions?

rick jones