Subject: Re: trap in ipw(4)
To: Nick Hudson <nick.hudson@dsl.pipex.com>
From: john heasley <heas@shrubbery.net>
List: tech-net
Date: 12/16/2004 11:58:47
Thu, Dec 16, 2004 at 11:25:14AM -0800, john heasley:
> Thu, Dec 16, 2004 at 07:39:11AM +0000, Nick Hudson:
> > On Wednesday 15 December 2004 23:25, john heasley wrote:
> > [...]
> > > The firmware is the most recent with -current of ~12/4.  It is not doing
> > > WEP.
> > 
> > There is a 1.3 firmware tar ball which I have a pkgsrc update for. I don't 
> > have a ipw(4) and we're in a pkgsrc freeze so I haven't committed it.
> 
> I had not noticed rev 1.3, but just tried it.  While scp'ing a ~180M
> file from a remote to the laptop, it reaches ~124K/s max and hangs/stalls
> after 8 - 14M.  With 1.2, it completes and reaches ~430K/s.  I did not
> take note of what speeds the driver thought were available.
> 
> if there's something else you'd like me to try or collect, just holler.

I spoke too soon.  The hack in kern/28683 appears to improve this problem.
The same file transfer nearly completes, briefly stalls, then finishes.  I
also seem to get better performance, by roughly 100k.