Arch Linux

gimpel

Member

From: Jena, Germany

Registered: 2008-02-08

Posts: 23

Kernel 2.6.34.2 breaks Broadcom BCM4401 networking ( b44 module )

Seems like kernel upgrade to 2.6.34.2 not only breaks the b43 kernel module (for broadcom WiFi cards), see: https://bbs.archlinux.org/viewtopic.php?id=102212
but also b44 for my wired Broadcom BCM4401 based NIC on my Dell Inspiron 9400 / E 1705 Laptop using arch x86_64
this can be fixed by downgrading to kernel 2.6.34.1

kernel.log shows messages like the following examples every few seconds / minutes since the 2.6.34.2 upgrade:

Aug  4 11:09:47 rechenknecht kernel: b44 ssb0:0: eth0: powering down PHY
Aug  4 11:09:47 rechenknecht kernel: b44 ssb0:0: eth0: BUG!  Timeout waiting for bit 00000002 of register 42c to clear
Aug  4 11:09:51 rechenknecht kernel: b44 ssb0:0: eth0: BUG!  Timeout waiting for bit 00000002 of register 42c to clear
Aug  4 11:10:12 rechenknecht kernel: b44 ssb0:0: eth0: powering down PHY
Aug  4 11:10:12 rechenknecht kernel: b44 ssb0:0: eth0: BUG!  Timeout waiting for bit 00000002 of register 42c to clear

or

Aug  4 11:57:54 rechenknecht kernel: b44 ssb0:0: eth0: BUG!  Timeout waiting for bit 00000002 of register 42c to clear
Aug  4 11:57:58 rechenknecht kernel: b44 ssb0:0: eth0: Link is up at 100 Mbps, full duplex
Aug  4 11:57:58 rechenknecht kernel: b44 ssb0:0: eth0: Flow control is off for TX and off for RX

Last edited by gimpel (2010-08-04 11:19:10)

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karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: Kernel 2.6.34.2 breaks Broadcom BCM4401 networking ( b44 module )

Maybe this will help
https://bbs.archlinux.org/viewtopic.php?id=102255

Inxsible

Forum Fellow

From: Chicago

Registered: 2008-06-09

Posts: 9,183

Re: Kernel 2.6.34.2 breaks Broadcom BCM4401 networking ( b44 module )

karol,

the op himself is the first person to provide a solution in the thread that you linked.

@OP Please do no post issues in threads. If you have a solution (which you obviously do) provide it in the threads that already exist for the same issue.

EDIT: Looks like you posted this and then found the solution. In that case search the forums prior to posting.

Last edited by Inxsible (2010-08-04 15:56:59)

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brain0

Developer

From: Aachen - Germany

Registered: 2005-01-03

Posts: 1,382

Re: Kernel 2.6.34.2 breaks Broadcom BCM4401 networking ( b44 module )

Is the b44 on ssb, too? If so, the same fix as for b43 might help as well. See http://mailman.archlinux.org/pipermail/ … 15305.html and report back.

EDIT: The fixed kernel has moved to core, I assume that this fixes the b44 too.

Last edited by brain0 (2010-08-04 21:38:08)

loafer

Member

From: the pub

Registered: 2009-04-14

Posts: 1,772

Re: Kernel 2.6.34.2 breaks Broadcom BCM4401 networking ( b44 module )

I've got a Dell Inspiron with the BCM4401.  The fixed kernel indeed solves the problem here.

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