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Date:      Sat, 9 Apr 2016 20:38:42 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        =?UTF-8?B?T3RhY8OtbGlv?= <otacilio.neto@bsd.com.br>
Cc:        freebsd-current <freebsd-current@freebsd.org>,  "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: WIFI urtwn possibly broken on 297561
Message-ID:  <CAJ-Vmo=NNzTHHTeXEYHVNNJajNjLEZNDMykk5_SfqnDYWVFn%2Bg@mail.gmail.com>

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Hi!

this is because we don't have A-MPDU RX aging on by default. So, if
there are holes in the sequence number space, FreeBSD's reordering
logic doesn't flush frames up until it's received /all/ the traffic.

I've just enabled it by default in -HEAD now. That should fix it.
Otacilio, you should be able to fix it locally by adding options
IEEE80211_AMPDU_AGE to your kernel config file and recompiling.

Sorry!


-adrian



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