iwn0 hangs randomly when starting the machine

Adrian Chadd adrian at freebsd.org
Wed Apr 9 03:40:02 UTC 2014


I'm not sure. I'd really like to see what the story is with coexistence somehow.


-a


On 8 April 2014 20:32, Erich Dollansky <erichsfreebsdlist at alogt.com> wrote:
> Hi,
>
> On Tue, 8 Apr 2014 20:07:39 -0700
> Adrian Chadd <adrian at freebsd.org> wrote:
>
>> Coexistence is to deal with the fact that a 40MHz channel may overlap
>> a 20MHz-only AP in the extension channel.
>>
>> If the AP finds a 20MHz AP in the extension channel (ie, the other
>> half of its 40MHz) channel then it'll flip itself to 20MHz. If it
>> determines it isn't there any more, it'll flip the BSS to the 40MHz
>> channel.
>>
>> Now, why the hell it's causing the connection to fail? I have no idea.
>>
>> can someone file a PR that says it's all busted with 40MHz coxistence
>> enabled? We can then start debugging from that position.
>>
> I am not so sure if it is a general problem or just a DLink problem.
>
> I just activated my own access point and it worked there. The only
> problem is that it also works with DLink but only randomly. So, it
> still could have been that I was just always lucky when connecting to
> the ProLink access point I have.
>
> As the DLink is not mine, I am not even able to access its
> administration interface.
>
> Can I suggest to wait a bit to get more feedback to see if it is a
> general problem or a problem only linked to one manufacturer?
>
> Erich


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