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Date:      Fri, 17 May 2013 07:31:35 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Lev Serebryakov <lev@freebsd.org>
Cc:        freebsd-wireless@freebsd.org
Subject:   Re: [rft] improved hostap powersave / ps-poll support is now in HEAD
Message-ID:  <CAJ-Vmo=%2Bpptix8W5rL20U8nhjHpvQP%2BLgxV=fT3oqBxDgu4aqA@mail.gmail.com>
In-Reply-To: <1676995012.20130517124517@serebryakov.spb.ru>
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> <1676995012.20130517124517@serebryakov.spb.ru>

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Hi!

Yup, I've reproduced one of the TX hangs here. I'll post more details soon.

Thanks!



Adrian


On 17 May 2013 01:45, Lev Serebryakov <lev@freebsd.org> wrote:
> 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 fail=
ed
>>> 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.
>
> --
> // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>



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