Re: nic underruns/network crashes

[jakemsr_(_at_)_clipper_(_dot_)_net]

I accidently sent a messge to Mark that was intended for the list.  This
is his reply.

<jakemsr_(_at_)_clipper_(_dot_)_net>

----- Forwarded message from Mark Spivak <spivak_(_at_)_research_(_dot_)_suspicious_(_dot_)_org> -----

From: Mark Spivak <spivak_(_at_)_research_(_dot_)_suspicious_(_dot_)_org>
To: jakemsr_(_at_)_clipper_(_dot_)_net
Subject: Re: nic underruns/network crashes




> I have the same problem, with the same chips.  The funny thing is, I only
> seem to have problems with scp & sftp.  This morning I tried to transfer
> a 997MB file to another local computer using scp.  It got 75% done and
> froze the box; no ping, no X, no Ctl-Alt-F1.  Then I put the file in my web
> space and downloaded it from the other box with lynx.  It went no problem.
> It was also transfering at 5MB/s, whereas scp was transfering around 600K/s.
> It's also odd that I used scp to put the file on that box in the first place,
> and had no problems whatsoever.  I only have problems with outgoing scp &
> sftp.  

>From what I understand it's a transmit (alas TX) problem in the driver, no recieve (RX).
That explains the situation.
Also, scp is slower because it uses encryption, which causes a lot of cpy overhead.

> I posted a similar question a while back, and the dc(tulip) maintainer said
> the ADMtek chips are flaky.
> 
> <jakemsr_(_at_)_clipper_(_dot_)_net>
> 
> PS - How do I use a local MASTER_SITES for ports, without changing the list
> in each Makefile?  I tried "export MASTER_STIES='http://obsd/distfiles/'" (a 
> local repository of distfiles I've downloaded), but that doesn't seem to 
> work.
> 

----- End forwarded message -----