From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felix Fietkau Date: Wed, 07 Mar 2012 20:42:35 +0100 Subject: [ath9k-devel] "Failed to stop Tx DMA" and "Could not stop RX" with AR9485 In-Reply-To: References: <4F4E9A36.2080809@lacto.se> <4F579B14.4020109@openwrt.org> Message-ID: <4F57BA2B.5040307@openwrt.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On 2012-03-07 7:37 PM, Paul Farrow wrote: > > On Wed, 07 Mar 2012 18:29:56 +0100, Felix Fietkau wrote: >> On 2012-02-29 10:35 PM, Kim Lidstr?m wrote: >>> Hello! >>> A while ago I had a situation where my AR9485 would lock up the >>> kernel >>> so bad and two very nice guys(Mohammed Shafi and Adrian.. Uhm.. >>> Sorry I >>> forgot his last name) were very patient in helping me and trying to >>> debug it through patches, etc. Nothing worked. >>> Eventually, though, I noticed that when I removed the atl1c module >>> my >>> wlan started working. "Awesome!" I thought... Until I noticed this >>> other >>> problem. >>> >>> Once in a while, seemingly at random, the wlan dies with the error >>> messages in the title. And I can't possibly restore it without >>> restarting the computer. >>> >>> With this message I have attached a log with the error messages. >>> This has been a problem since.. Uhm.. Kernel 3.2.something and I'm >>> currently running 3.2.8. >>> For some reason it happened at least 3-4 times shortly after each >>> other >>> today - so I thought I might ask on here what's happening. >> Please try this patch with powersave enabled, using a recent >> compat-wireless build (3.3 or linux-next based): >> http://nbd.name/ps-fix.patch >> >> - Felix >> _______________________________________________ >> ath9k-devel mailing list >> ath9k-devel at lists.ath9k.org >> https://lists.ath9k.org/mailman/listinfo/ath9k-devel > > > Hi Felix > > I would like to try your patch to see if it stops my Tx DMA errors on > my AR9280 chipset pcie card. > > 1. Do you think it might work? > 2. What is the best way to apply this patch? > > Please be gentle with me as I am linux hobbyist and I am keen to get my > Tx DMA error problem sorted which I can recreate straight away every > time. If your Tx DMA issues are powersave related, this patch might help to fix them. - Felix