From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail2.candelatech.com ([208.74.158.173]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZNQez-0005uX-8D for ath10k@lists.infradead.org; Thu, 06 Aug 2015 19:17:01 +0000 Received: from [192.168.100.236] (firewall.candelatech.com [50.251.239.81]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mail2.candelatech.com (Postfix) with ESMTPSA id 3B77940A0D9 for ; Thu, 6 Aug 2015 12:16:40 -0700 (PDT) Message-ID: <55C3B297.2050704@candelatech.com> Date: Thu, 06 Aug 2015 12:16:39 -0700 From: Ben Greear MIME-Version: 1.0 Subject: Repeatable crash of CT firmware (at least). 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: ath10k In case someone has time an interest, I would be curious if upstream firmware/kernels see this problem. Unfortunately, it takes a bit of setup to do this test (namely, constant tx source, and if doing this with something like ath9k, then you might need a variable attenuator). Possibly just a very loud constant tx source would reproduce the bug as well, and possibly it would happen in AP mode, etc. Channel 1, HT40 Configure ath10k in station mode, associate with ath10k AP, start transmitting frames (about 4kpps tx, 1kpps rx in my case) Add a constant-transmit noise source at around -65 db on the same channel. This should cause ath10k station (and AP) to go silent. Shortly after, the station system's ath10k firmware crashes due to assert in the firmware CE logic. I know that a similar CE assert can happen if the host does bad things with the tx descriptors, so I am suspicious that is the case here. For instance, maybe firmware is still trying to transmit the frame when host tears down the station vdev?? Of course, this could all be due to bugs in CT firmware and/or my kernel patches... Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k