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Date:      Fri, 17 May 2013 12:45:17 +0400
From:      Lev Serebryakov <lev@FreeBSD.org>
To:        Adrian Chadd <adrian@freebsd.org>
Cc:        freebsd-wireless@freebsd.org
Subject:   Re: [rft] improved hostap powersave / ps-poll support is now in HEAD
Message-ID:  <1676995012.20130517124517@serebryakov.spb.ru>
In-Reply-To: <CAJ-Vmo=E-xbmZfns3LEnUSmHu3OHH_fn6rykhgFoAtFf7EMVEQ@mail.gmail.com>
References:  <CAJ-VmokpXRjyHx7fKxT5thnOzNCoOV1bd080tccWcEfsbpqnmw@mail.gmail.com> <57577088.20130516130950@serebryakov.spb.ru> <CAJ-VmonrC9VeuO0aVime0rH8pXirFJUTtJ0hQWwHTG5SsjZ8bQ@mail.gmail.com> <1499704342.20130516183528@serebryakov.spb.ru> <CAJ-Vmo=E-xbmZfns3LEnUSmHu3OHH_fn6rykhgFoAtFf7EMVEQ@mail.gmail.com>

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Hello, Adrian.
You wrote 16 =D0=BC=D0=B0=D1=8F 2013 =D0=B3., 21:53:49:

>> AC> oh, when it drops to non-N mode, it likely did that because it failed
>> AC> to successfully transmit a BAR frame to the receiver.
>> AC> can you provide me the whole log? I'll go see what's going on.
>>  Attached. But I cannot say at which moment it drops to non-N mode now
>>  :(
AC> Ok. Update to the latest -HEAD again and retry. I've fixed debugging
AC> to be a little clearer (to me, at least.)
 Bad news: at this series of tests I didn't get N rates at all, and
 got station deassociation again. Twice. It seems, that it depends on
 HT/aggregation negotiation.

 Log attached. Log contains two series of tests:

 (1) Only debug was set to 0x9<zeroes>20 value (see "sysctl" call)
     Result: non-N rates, deassociation, automatic re-association in 30
     seconds without my intervention.

 (2) Additional "wlandebug +crypto +assoc +state" was called.
     Result: the same.

 You could see "borders" of tests by "sudo" calls.

 Notebook was on AC power.

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>
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