From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: Matthew Robbetts <wingfeathera@gmail.com>,
"ath10k@lists.infradead.org" <ath10k@lists.infradead.org>
Subject: Re: Warnings/errors in use with a QCA989x card
Date: Sat, 6 Jun 2015 16:50:34 +0300 [thread overview]
Message-ID: <87sia5lzdh.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <CA+BoTQm735L-TQ0ZjSZ2gHud_AwvP+kZAh+Wc4iQtaGSiC2GLw@mail.gmail.com> (Michal Kazior's message of "Fri, 5 Jun 2015 07:17:41 +0200")
Michal Kazior <michal.kazior@tieto.com> writes:
> This is the dreaded tx credit starvation.
>
> In some cases if disassoc+deauth is sent and target station is asleep
> and unresponsive it'll cause firmware to stall causing ath10k timeouts
> during sta_state station removal. Due to insufficient credits beacons
> can't be sent for ~10 seconds, sta_state station removal fails causing
> mac80211 call trace splat and later spurious kickout events because
> peer was never removed from firmware.
>
> There's no easy/sane fix for that, yet.
>
> You can read more on the subject:
>
> http://thread.gmane.org/gmane.linux.kernel.wireless.general/121954
> http://thread.gmane.org/gmane.linux.drivers.ath10k.devel/638
Should we write an entry to the FAQ about this?
--
Kalle Valo
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next prev parent reply other threads:[~2015-06-06 13:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-05 1:52 Warnings/errors in use with a QCA989x card Matthew Robbetts
2015-06-05 5:17 ` Michal Kazior
2015-06-05 15:52 ` Ben Greear
2015-06-05 20:23 ` Matthew Robbetts
2015-06-05 20:39 ` Ben Greear
2015-06-08 7:18 ` Michal Kazior
2015-06-22 18:02 ` Matti Laakso
2015-06-22 22:40 ` Matthew Robbetts
2015-06-23 5:06 ` Michal Kazior
2015-06-23 16:48 ` Matthew Robbetts
2015-06-24 5:09 ` Michal Kazior
2015-06-05 20:16 ` Matthew Robbetts
2015-06-06 13:50 ` Kalle Valo [this message]
2015-06-07 20:44 ` Matthew Robbetts
2015-06-08 7:23 ` Michal Kazior
2015-06-08 14:42 ` Kalle Valo
2015-06-08 16:59 ` Matthew Robbetts
2015-06-09 8:52 ` Kalle Valo
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