From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mitch Davis Date: Mon, 23 Apr 2012 09:45:09 +1000 Subject: [ath9k-devel] Card AR928X very slow with new kernels In-Reply-To: <20120422005427.GA7640@nil> References: <20120422005427.GA7640@nil> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On Sun, Apr 22, 2012 at 10:54 AM, Pierre Willaime wrote: > Hello, > > I have some troubles with my atheros wireless card. With new kernels, the connection is very slow and unreliable. It was not the same on debian stable with an old kernel. Me too, although I don't have any datapoints about older versions. I am running Linux 3.3.2 under Fedora 16. According to lspci, my computer has: 02:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01) > I tried to disable ipv6 and to start ath9k with the option "nohwcrypt" but I didn't see any huge improvement. I didn't see any improvement either. A good way to trigger the problem for me is to run transmission, the bittorrent program. As well as it Not Working Very Well, plus Frequent Disconnects, the ping time from a 2nd computer to the AP goes from 2ms to 8000ms. So perhaps the driver is spamming the airwaves. I'd love to investigate what's happening but I have no idea where to start. Is this page what I'm after: http://linuxwireless.org/en/users/Drivers/ath9k/debug That page tells me about all the cool things for debugging, but doesn't give me an idea of how to methodically go about finding the right info. Any suggestions for values of debug? Any suggestions for the right place to look in /sys/kernel/debug/ath9k? Thank you, Mitch.