From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from wolverine02.qualcomm.com ([199.106.114.251]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Wvr5Y-0002j1-RP for ath10k@lists.infradead.org; Sat, 14 Jun 2014 16:45:57 +0000 From: Kalle Valo Subject: Re: After shutdown/restart, ath10k sometimes stops receiving packets References: Date: Sat, 14 Jun 2014 19:45:29 +0300 In-Reply-To: (Avery Pennarun's message of "Thu, 12 Jun 2014 19:37:12 -0400") Message-ID: <878uoz4eza.fsf@kamboji.qca.qualcomm.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Avery Pennarun Cc: ath10k Avery Pennarun 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. In particular, Probe requests are not answered, and Auth > requests do not even receive a wifi ACK. > > Restarting hostapd doesn't fix it. However, rmmoding and modprobing > the ath10k_pci module does fix it. > > This is with a mindspeed c2k host processor, 3.2 kernel, and modules > backported by backports from kvalo's ath-next as of > v3.15-rc1-237-gd9bc4b9 (roughly 2014-04-29). Firmware is > 10.1.467.2-1. > > Has anyone else seen this? Any suggestions where to look to narrow > down the problem? > > I can't exactly produce it on demand yet, but if someone suggests > things to look for when it happens, it occurs often enough that I > should be able tor run those things. Do you have any guesses how often this happens? Once a day, once a week? -- Kalle Valo _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k