Re: b43 dma error

[Larry Finger <Larry.Finger@lwfinger.net>]

John Daiker wrote:
> On 09/08/2009 07:54 AM, Larry Finger wrote:
>> Michael Buesch wrote:
>>> On Tuesday 08 September 2009 15:47:32 Dave Young wrote:
>>>> I tested wireless-testing b43 driver, but got "Fatal DMA error"
>>>> then the controller keep restarting...
>>>>
>>>> Please tell what I can provide or test, Thanks.
>>>
>>> Is this a regression? If so, please bisect.
>>
>> It is something specific to his system as I don't see anything like
>> this. In addition, there are some users on the openSUSE forums that
>> have implemented the latest compat-wireless and switched away from
>> Broadcom wl to b43 on their LP PHY devices. So far, no complaints from
>> them.
>>
>> Please reboot so that we see the ssb output as well. Use the command
>>
>> dmesg | egrep "ssb|b43"
>>
>> That way we will be able to see exactly what kind of device you have
>> and what revisions are in it. AFAIK, the testing to date has been
>> limited to Rev 1 PHYs and Rev 2 radios.
>>
>> Larry
>>
> 
> I can confirm the same issue.  I have a HP Mini 1116NR with a Broadcom
> 4312.  Looks to be a PHY 1, Radio 2:
> 
> --snip--
> [  456.165296] b43-phy0 debug: Found PHY: Analog 6, Type 5, Revision 1
> [  456.165364] b43-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2062,
> Revision 2
> --snip--
> 
> I've attached the output of 'dmesg | egrep "ssb|b43"', my kernel config,
> and lspci -vv and lspci -nn
> 
> Note: With the dmesg output, I had unloaded the b43 module previous
> 'modprobe -r b43' and then loaded it again with debug output: 'modprobe
 b43 verbose=3'

Your PHY and your radio are the same as mine. In fact, the one thing I
noticed is that you are using i386 architecture, whereas mine is
x86_64. I have not tested with i386.

Has anyone run the LP PHY modifications with 32-bit architecture?

Larry