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Date:      Tue, 24 Jun 2008 22:43:00 +0200
From:      Marius Strobl <marius@alchemy.franken.de>
To:        Pyun YongHyeon <pyunyh@gmail.com>
Cc:        Tim Nelson <tnelson@fudnet.dyndns.org>, Kage <jirokagey@hotmail.com>, freebsd-sparc64@freebsd.org
Subject:   Re: gem0 frame error
Message-ID:  <20080624204300.GA17358@alchemy.franken.de>
In-Reply-To: <20080623235653.GC55552@cdnetworks.co.kr>
References:  <18034453.post@talk.nabble.com> <20080622122635.GA9784@alchemy.franken.de> <18072527.post@talk.nabble.com> <485FCBD1.8020807@fudnet.net> <20080623235653.GC55552@cdnetworks.co.kr>

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On Tue, Jun 24, 2008 at 08:56:53AM +0900, Pyun YongHyeon wrote:
> On Mon, Jun 23, 2008 at 11:14:09AM -0500, Tim Nelson wrote:
>  > Kage wrote:
>  > >
>  > >Marius Strobl wrote:
>  > >  
>  > >>With what version of FreeBSD is this?
>  > >>
>  > >>Marius
>  > >>
>  > >>_______________________________________________
>  > >>freebsd-sparc64@freebsd.org mailing list
>  > >>http://lists.freebsd.org/mailman/listinfo/freebsd-sparc64
>  > >>To unsubscribe, send any mail to "freebsd-sparc64-unsubscribe@freebsd.org"
>  > >>
>  > >>
>  > >>    
>  > >
>  > >
>  > >I feel like punching myself.  One of the first things you always learn 
>  > >about
>  > >systems is to "check the cables".  Well, I thought back to the path this
>  > >system was connected through and then about the statement that 10BT
>  > >half-duplex is uncommon, which struck me again when it was mentioned.  So I
>  > >checked, and it hit me so hard I slapped my forehead - the test systems I
>  > >have here run through an old superstack II....which is limited to 10BT. 
>  > >Removing this from that switch and then wiring it directly into the good
>  > >switch fixed the problem completely.
>  > >
>  > >At least I can say I fixed something today.  Thanks for the help!
>  > >
>  > >(It is 7.0-release, by the way)
>  > >  
>  > Regardless... shouldn't the driver properly deal with being plugged into 
>  > a 10BT Half-Duplex environment?
> 
> Yes, it should. At least we know there is an issue on 10Mbps link
> with gem(4). Marius may have better idea as he touched gem(4)
> recently.
> 

Chances are that half-duplex support was broken before if_gem.c 1.44/
172334. That's why I asked for the FreeBSD version this is happening
with.

Marius




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