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Date: Tue, 13 Jan 1998 20:01:49 -0800 (PST)
From: Doug White <dwhite@gdi.uoregon.edu>
Reply-To: Doug White <dwhite@resnet.uoregon.edu>
To: Gert-Jan Vons <vons@usa.net>
cc: questions@FreeBSD.ORG
Subject: Re: NE2000 card sometims has memory but usually not ?
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On Mon, 12 Jan 1998, Gert-Jan Vons wrote:

> 
> Running 2.2.5-RELEASE on a 486dx2-66, NE2000 clone (SimpleNet SN2000CT)
> as network board.
> 
> I usually have
> 
>  Jan 11 09:57:28 dodo /kernel: ed0 at 0x300-0x31f irq 10 on isa
>  Jan 11 09:57:28 dodo /kernel: ed0: address 00:40:05:1c:24:e0, type NE2000
>  (16 bit)
> 
> in my log file, but today (and once , ~2 weeks ago) my card developed
> a case of "memory gain", although flaky:
> 
>  Jan 12 19:05:54 dodo /kernel: ed0: failed to clear shared memory at d8000 -
>  check configuration
>  Jan 12 19:05:54 dodo /kernel: ed0 at 0x300-0x31f irq 10 msize 8192 on isa
>  Jan 12 19:05:54 dodo /kernel: ed0: address 00:40:05:1c:24:e0, type NE2000
>  (16 bit) 
> 
> How come the driver sometimes thinks there's memory, but usually doesn't ?
> 
> The doc mentions 16 Kbytes of Buffer RAM size, but it is unclear whether
> that is internal to the card hardware or not.
> 
> Could there be a problem with the card, the driver, the config of
> either, ...?

The NE2000 must be returning some info to that effect.  Which is strange,
since the NE2000 adapters don't have shared memory.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major