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Date:      Fri, 26 Apr 2013 14:17:25 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        lev@freebsd.org
Cc:        freebsd-wireless@freebsd.org
Subject:   Re: New hardware, old problem: stuck beacon when here is WiFi traffic
Message-ID:  <CAJ-Vmom5kKL5YZEXvkqiWWWLY69PJPHES7Np=byr%2Bc7NjH_u-Q@mail.gmail.com>
In-Reply-To: <1091133497.20130427011423@serebryakov.spb.ru>
References:  <2810538978.20130423164137@serebryakov.spb.ru> <CAJ-Vmom4UDoz7EgdnVeQ%2BALuFFXkH9t_Uj7=FwL77S5rKfUD1g@mail.gmail.com> <1813905823.20130423184528@serebryakov.spb.ru> <CAJ-VmomhRaKODxis09MjAhUbAUOw%2B6jWBY48JpZR_JgfZZLKcQ@mail.gmail.com> <184105677.20130424002002@serebryakov.spb.ru> <CAJ-VmokVmHDXwE7S5koSqtFjPXQ_VUPhj8gfMruDM2k-DyUMPw@mail.gmail.com> <1936997795.20130424003555@serebryakov.spb.ru> <CAJ-Vmokx2QhcjcsgA-_kqjX63Vu4CLk7HkuyALautbnzp61ywQ@mail.gmail.com> <886711115.20130424004702@serebryakov.spb.ru> <CAJ-VmoksSTBC7jmC-_hvBeJFSD0k28HoZodaWdHm0AF0d1yZJg@mail.gmail.com> <6010292503.20130426001447@serebryakov.spb.ru> <CAJ-VmomUsPgHTVGaKHZ_YE%2Bu1ZOjGqrVfh2uYmvOs6gKmhnxOw@mail.gmail.com> <CAJ-VmokZBbmHbruKJV-8kvTyOTsiq5_XHnfqUYo3vO68872Q=w@mail.gmail.com> <99510815.20130426122508@serebryakov.spb.ru> <CAJ-VmoktRPbnDRbRuwA4i8w50kExs2pwD4yBawL6iOz7F4Bknw@mail.gmail.com> <766430457.20130426125828@serebryakov.spb.ru> <CAJ-Vmo=kGvPmejzsMw_T5MtL0HyLGa9kNnX_tt0PnFo6M4g37A@mail.gmail.com> <1091133497.20130427011423@serebryakov.spb.ru>

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On 26 April 2013 14:14, Lev Serebryakov <lev@freebsd.org> wrote:
> Hello, Adrian.
> You wrote 26 =D0=B0=D0=BF=D1=80=D0=B5=D0=BB=D1=8F 2013 =D0=B3., 18:56:57:
>
> AC> And please cc -wireless with your debugging results :)
>  Ok.
>    It is interesting how throughput is not connected to rate after
>  these problems. Now I have client at stable 270M rate with RSSI ~28,
>  and only 15-20Mbit/s of UDP traffic AP->Client... :(
>
>    It looks like throughput is bad after card reset without reboot...
>   But no ath_bar_suspend!
>
>    Yes, after full reboot throughput is osscilate between 65 and
>  120Mbit/s! But with bar_suspsends!
>
>    Maybe, it is coincidence, but I npotice this for second time...

All kinds of reasons for this behaviour. We'll look into it after we
nail down why the TX queue is stalling.



adrian



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