Return-path: Received: from mail-pz0-f201.google.com ([209.85.222.201]:53377 "EHLO mail-pz0-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752217AbZIHS0G (ORCPT ); Tue, 8 Sep 2009 14:26:06 -0400 Received: by pzk39 with SMTP id 39so3376300pzk.15 for ; Tue, 08 Sep 2009 11:26:09 -0700 (PDT) Message-ID: <4AA6A1BF.6020509@gmail.com> Date: Tue, 08 Sep 2009 11:26:07 -0700 From: John Daiker MIME-Version: 1.0 To: Michael Buesch CC: Larry Finger , Dave Young , linville@tuxdriver.com, netrolller.3d@gmail.com, linux-wireless@vger.kernel.org, bcm43xx-dev@lists.berlios.de Subject: Re: b43 dma error References: <20090908134732.GA1936@darkstar> <4AA67009.4020400@lwfinger.net> <4AA69961.9010808@gmail.com> <200909082013.41929.mb@bu3sch.de> In-Reply-To: <200909082013.41929.mb@bu3sch.de> Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 09/08/2009 11:13 AM, Michael Buesch wrote: > On Tuesday 08 September 2009 19:50:25 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' >> >> John Daiker >> > > To ask the question once again: Is this a regression? > This is a critical question to track down the bug. > I would argue that this is not a regression. Before the LP PHY work was done, the card wouldn't work at all with the b43 driver. "Didn't work then, doesn't work now" is kinda my reasoning, I guess. Thanks for the work on the LP PHY support, though. Always great that new hardware continues to gain support! :) JD