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From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Avery Pennarun <apenwarr@gmail.com>
Cc: ath10k <ath10k@lists.infradead.org>
Subject: Re: After shutdown/restart, ath10k sometimes stops receiving packets
Date: Sun, 15 Jun 2014 08:45:34 +0300	[thread overview]
Message-ID: <87vbs23ev5.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <CAHqTa-1MGGFK50sO=JAswMZLA0=Yy8AH4g0ziLr6+RK2R57jFg@mail.gmail.com> (Avery Pennarun's message of "Sat, 14 Jun 2014 14:40:59 -0400")

Avery Pennarun <apenwarr@gmail.com> writes:

> On Sat, Jun 14, 2014 at 12:45 PM, Kalle Valo <kvalo@qca.qualcomm.com> wrote:
>> Avery Pennarun <apenwarr@gmail.com> writes:
>>> We are experiencing a relatively-rare-but-not-rare-enough case which
>>> has approximately these steps:
>>>
>>> - run a wifi AP for a while with a station or two connected
>>> - shut down hostapd (stations all get disconnected of course)
>>> - restart hostapd (perhaps on another channel or with different settings)
>>>
>>> After that, an external wifi sniffer can see beacons being transmitted
>>> by the AP as expected, but all packets from stations trying to connect
>>> are ignored.
>>
>> Do you have any guesses how often this happens? Once a day, once a week?
>
> Someone in our QA group seems to be able to produce it after two or
> three test runs with Veriwave.  Before each run, he stops and restarts
> hostapd.

That's quite often. Was he testing DFS or something else? Maybe this is
related to radar detection or channel switching?

-- 
Kalle Valo

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  reply	other threads:[~2014-06-15  5:46 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-12 23:37 After shutdown/restart, ath10k sometimes stops receiving packets Avery Pennarun
2014-06-13  9:14 ` Michal Kazior
2014-06-13  9:37   ` Avery Pennarun
2014-06-13  9:49     ` Michal Kazior
2014-06-13 11:00       ` Michal Kazior
2014-06-14 16:45 ` Kalle Valo
2014-06-14 18:40   ` Avery Pennarun
2014-06-15  5:45     ` Kalle Valo [this message]
2014-06-15  6:49       ` Avery Pennarun
2014-06-16  9:30         ` Kalle Valo
2014-06-15 16:13       ` Ben Greear

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