Re: [Bugme-new] [Bug 14451] New: b44 BCM4401 immediate disconnect and power down after ip assignment

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On Wed, 21 Oct 2009 07:38:13 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=14451

           Summary: b44 BCM4401 immediate disconnect and power down after
                    ip assignment
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.31.4
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Network
        AssignedTo: drivers_network@kernel-bugs.osdl.org
        ReportedBy: andreas@schipplock.de
        Regression: No


Hi,
I compiled the linux kernel 2.6.31.4 and after "dhcpcd" wanted to assign an ip,
it worked for 500ms and I then got the following message being repeated a _lot_
in dmesg:

b44: eth0: powering down PHY
b44: eth0: Link is down.
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
b44: eth0: powering down PHY
b44: eth0: Link is down.
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.

These messages repeat endlessly and I can't establish a connection. 

The exact name of the ethernet controller is: "08:00.0 Ethernet controller:
Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)" regarding lspci output.

When I execute "ifconfig" every 500ms I can see that the device "eth0" gets a
valid ip but the next time I execute ifconfig the ip is already "gone" and I
again get the the messages posted above in dmesg. 

I first thought was that I have a media problem so I replaced all my wires but
the problem still exists and the problem doesn't appear on the 2.6.28.x kernel
which I ran before. I even installed linux mint in a hurry to see if it's
really not a hardware issue and it worked there without a problem (using kernel
2.6.28-11, that's how they call it).

I've got no further idea. I created three different config files from scratch
using menuconfig. In the end I even thought other modules are conflicting and I
adapted the config so it only fits for my specific hardware which gave me some
good boot time but no success regarding the bcm4401 issue. 

Any help is appreciated.