From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from plane.gmane.org ([80.91.229.3]:49124 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752771Ab3JRMaE (ORCPT ); Fri, 18 Oct 2013 08:30:04 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1VX9Bq-0004xP-QF for linux-wireless@vger.kernel.org; Fri, 18 Oct 2013 14:30:03 +0200 Received: from 178.90.155.11.megaline.telecom.kz ([178.90.155.11.megaline.telecom.kz]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 18 Oct 2013 14:30:02 +0200 Received: from dev.wmark by 178.90.155.11.megaline.telecom.kz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 18 Oct 2013 14:30:02 +0200 To: linux-wireless@vger.kernel.org From: Mark Wu Subject: Bug with monitor mode on Intel 7260 AC Date: Fri, 18 Oct 2013 12:23:00 +0000 (UTC) Message-ID: (sfid-20131018_143009_594538_6B9B52EE) Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: I'm using Intel 7260 AC with this driver: https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.11-rc3/ , with the "iwlwifi-7260-7.ucode" firmware. I'm using it in monitor mode to capture 802.11ac packets on channel 36. It works well, I can capture VHT packets without problems, but only as long as the number of packets per second being captured is relatively low, e.g. 10 or 20 packets per second. As soon as the traffic gets heavier, e.g. 100 packets per second, the card stops capturing *all* VHT packets within a second from the moment the traffic volume got higher. The interesting part is that it doesn't stop capturing altogether: it keeps on capturing 802.11n HT and legacy 802.11a packets, it just completely ignores 802.11ac VHT packets. Is there any way to fix this problem and ensure stable VHT capture?