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Date:      Sun, 8 Mar 2009 18:36:53 +0900
From:      Pyun YongHyeon <pyunyh@gmail.com>
To:        Beat Siegenthaler <beat.siegenthaler@beatsnet.com>
Cc:        stable@freebsd.org
Subject:   Re: fxp unusable after make world
Message-ID:  <20090308093653.GD1531@michelle.cdnetworks.co.kr>
In-Reply-To: <49B38AEF.8070909@beatsnet.com>
References:  <49B1AC25.3000700@onetel.com> <27998819.871236382003017.JavaMail.HALO$@halo> <1d001f850903061814k2577f3ccs94be86bcc87b9efd@mail.gmail.com> <49B38AEF.8070909@beatsnet.com>

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On Sun, Mar 08, 2009 at 10:07:59AM +0100, Beat Siegenthaler wrote:
> Hi,
> 
> last week I made a rebuild on my system (7.1 RELENG_7 amd64).
> 
> After this i could not reach my system from outside the LAN. It was
> extremely slow. I suspected Modem, Firewall and so on, because inside my
> LAN I could work. But then with tshark I found, that also there where
> many retransmissions and checksum errors.
> 
> Then, short in time I replaced the dual EtherExpress PRO/100
> 
> fxp0@pci0:2:4:0:        class=0x020000 card=0x10158086 chip=0x12298086
> rev=0x0d hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '82550/1/7/8/9 EtherExpress PRO/100(B) Ethernet Adapter'
>     class      = network
>     subclass   = ethernet
> fxp1@pci0:2:5:0:        class=0x020000 card=0x10158086 chip=0x12298086
> rev=0x0d hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '82550/1/7/8/9 EtherExpress PRO/100(B) Ethernet Adapter'
>     class      = network
>     subclass   = ethernet
> 
> With two cheap Realtek cards and the problem was gone...
> 
> re0@pci0:0:12:0:        class=0x020000 card=0x001a6409 chip=0x816910ec
> rev=0x10 hdr=0x00
>     vendor     = 'Realtek Semiconductor'
>     device     = 'RTL8110SB Single-Chip Gigabit LOM Ethernet Controller'
>     class      = network
>     subclass   = ethernet
> re1@pci0:0:13:0:        class=0x020000 card=0x001a6409 chip=0x816910ec
> rev=0x10 hdr=0x00
>     vendor     = 'Realtek Semiconductor'
>     device     = 'RTL8110SB Single-Chip Gigabit LOM Ethernet Controller'
>     class      = network
>     subclass   = ethernet
> 
> 
> I see that the fxp-code was touched short time ago.
> 

I touched fxp(4) to add more hardware assistance so it could cause
problems on your box. Please show me dmesg output and
"ifconfig fxp0"
output.

If you doubt checksum offloading or TSO issues, try
"ifconfig fxp0 -tso -txcsum -rxcsum".

> P.S This is the first time since Years, that make world made one of my
> Systems unusable....



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