I have exactly the same problem.
[EMAIL PROTECTED]:~$ uname -a
Linux hnlwnh 2.6.27-7-generic #1 SMP Tue Oct 14 18:38:59 UTC 2008 x86_64
GNU/Linux
Ubuntu 2.6.27-7.11-generic
Here is the end of dmesg
[ 36.780197] sky2 eth0: enabling interface
[ 52.152578] sky2 eth0: Link is up at 100 Mbps, full duplex, flow control both
[ 6417.414125] npviewer.bin[9368]: segfault at 79746d ip 00000000080512a4 sp
00000000ffc23b88 error 4 in npviewer.bin[8048000+1a000]
[18427.014274] sky2 eth0: Link is down.
[18442.116334] sky2 eth0: Link is up at 100 Mbps, full duplex, flow control both
Here is what happens when I try to force it using ethtool
[EMAIL PROTECTED]:~/Desktop$ sudo ethtool -s eth0 speed 1000
[EMAIL PROTECTED]:~/Desktop$ sudo ethtool eth0
sudo: unable to resolve host hnlwnh
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: Unknown! (65535)
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pg
Wake-on: d
Current message level: 0x000000ff (255)
Link detected: yes
[EMAIL PROTECTED]:~/Desktop$ sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pg
Wake-on: d
Current message level: 0x000000ff (255)
Link detected: yes
[EMAIL PROTECTED]:~/Desktop$
--
Marvell 88E8001 Gigabit Ethernet fails to work as gigabit and works only in
100MBs
https://bugs.launchpad.net/bugs/258400
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