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Date:      Wed, 03 Mar 2010 17:46:09 -0500
From:      Joe Marcus Clarke <marcus@freebsd.org>
To:        current <current@freebsd.org>
Subject:   Re: Problem with new bwn driver on -CURRENT
Message-ID:  <4B8EE6B1.6030605@freebsd.org>
In-Reply-To: <20100303220452.GL1295@weongyo>
References:  <1267388668.39569.2410.camel@shumai.marcuscom.com> <20100301233706.GH1295@weongyo> <1267505443.35639.9.camel@shumai.marcuscom.com> <20100303220452.GL1295@weongyo>

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On 3/3/10 5:04 PM, Weongyo Jeong wrote:
> On Mon, Mar 01, 2010 at 11:50:43PM -0500, Joe Marcus Clarke wrote:
>> On Mon, 2010-03-01 at 15:37 -0800, Weongyo Jeong wrote:
>>> On Sun, Feb 28, 2010 at 03:24:28PM -0500, Joe Marcus Clarke wrote:
>>>> I was extremely pleased to see this driver, so I could get off of the
>>>> flaky NDIS version.  I have a Dell Vostra 2510 with a LP bwn mini-PCI
>>>> card.  I have set if_bwn_load="YES" in /boot/loader.conf.  I also have
>>>> bwn_v4_lp_ucode_load="YES" set.
>>>>
>>>> The firmware and driver loads.  However, if_bwn doesn't attach to the
>>>> card.  Once the OS is fully booted, I kldunload if_bwn, then reload it,
>>>> and the driver attaches just fine.
>>>
>>> This issue is reported by some people and I'm looking codes.
>>
>> Good to know.
> 
> This issue is solved in r204657.  Thank you for reporting!

Saw that, thanks!


>>>> bwn0: out of bounds of the square-root table (-770884)
>>>> bwn0: out of bounds of the square-root table (-225625)
>>>> bwn0: out of bounds of the square-root table (-240100)
>>>
>>> Patch is attached with email and it'll fix this message.  Could you
>>> please test with it?
>>
>> Yes, the patch removes those messages.  Thanks!

Was this patch committed?  I don't recall seeing an svn notice.

>>
>>>
>>> Was it successful to associate with AP?
>>
>> Yes, in DMA mode.  In PIO mode, it associates, but does not pass any
>> traffic.  After a while, there was a critical DMA error, and the driver
>> looped forever trying to communicate with the card.
> 
> Are there any messages from bwn(4) related with DMA error?  If yes and
> you reproduce DMA error easily could you please show me the full dmesg?

When it occurs, it is a fatal DMA error, and this streams on the console
until reboot.  In order to get the card to work again (with either bwn
or ndis), I need to power-cycle the laptop.

When it occurs again, I will get you the details and the full dmesg.  Do
you want a verbose dmesg, or a standard one?

Joe

-- 
Joe Marcus Clarke
FreeBSD GNOME Team	::	gnome@FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome



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