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Date:      Wed, 30 Apr 1997 13:12:50 -0700 (MST)
From:      Richard Straka <straka@inficad.com>
To:        "Justin T. Gibbs" <gibbs@plutotech.com>
Cc:        current@freebsd.org
Subject:   Re: ie ethernet driver and Intel EtherExpress16 
Message-ID:  <Pine.BSI.3.95.970430125701.29308A-100000@user2.inficad.com>
In-Reply-To: <199704301634.KAA17426@pluto.plutotech.com>

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On Wed, 30 Apr 1997, Justin T. Gibbs wrote:

> >I have also noticed that the machine seems to hang after disk syncing
> >during a halt/reboot.  The machine shuts down properly with the old 
> >ix driver.
> 
> Can you see if this patch fixes the hang?
> 
> --
> Justin T. Gibbs
> ===========================================
>   FreeBSD: Turning PCs into workstations
> ===========================================
> 

I applied the patch which you sent me, but the machine
still hangs when being shutdown. It did manage to produce
panic output once but it rebooted before I could stop it.
I believe it was a page fault error and it refered to
netmask (propably in an interrupt handler).

I did however manage to get the "receive frame desciptor out
of sync" error to go away. The buffers seem to be setup 
assuming a 16k adapter.  NFRAMES is set to 16 for the rx
frame descriptor buffer, but only around 9 full frames worth
of buffer space (48*256) is set up. Either reducing NFRAMES to 
8 or increasing NRXBUF to 96 seems to cure the problem. Increasing
NRXBUF seems to be about a 2% faster (885kB/sec vs 905kB/sec)
than decreasing NFRAMES on my machine during FTP transfers.

FTPing files from my 486 (with ie0) to my Pentium (with de0)
is still painfully slow. From netstat, it appears to send 
4 to 8 packets and then pause for 2 to 3 seconds. Total 
transfer rates for large files end up being less than 5kB/sec. 

Hope this helps shed some light on the problem.

Richard Straka
straka@inficad.com




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