From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joel Diaz Date: Mon, 13 May 2013 17:15:40 -0400 Subject: [ath9k-devel] ath9k (AR9485) failing with PCI errors after hours of uptime with current ath9k.ko from linux-wireless In-Reply-To: References: <1368049290.17080.31.camel@debian> <1368058909.22313.2.camel@debian> <1368444534.15473.9.camel@debian> Message-ID: <1368479740.1386.2.camel@debian> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On Mon, 2013-05-13 at 06:29 -0700, Adrian Chadd wrote: > On 13 May 2013 04:28, Joel Diaz wrote: > > On Wed, 2013-05-08 at 22:10 -0700, Adrian Chadd wrote: > >> No, I mean - there's an iw command to disable entering power save on > >> your linux station. Find that and disable it. > >> > > It has now been running for about 4 and half days without seeing the > > wireless connection drop after the 'iw dev wlan0 set power_save off'. I > > hope it's not premature to say thanks, as this is the longest I've seen > > it go without a failure. > > > > I'm not at all familiar with the history behind why power saving needs > > to be disabled (as this machine is a desktop, it's not terribly > > important to me), but if there's any hope of having it fixed through > > patches, I'd be more than willing to help out so other people don't have > > to go through what I went through. > > Hi! > > please file a kernel.org bugzilla bug. > I've updated the title and added the workaround to my previously opened bugzilla ( https://bugzilla.kernel.org/show_bug.cgi?id=56301 ). Joel > There's two overarching possibilities: > > * there's a driver bug (eg setting up DMA when the chip is asleep); > trying to put the NIC to sleep during a DMA, etc; > * that some PCIe quirk needs to be added to the ath9k driver to work > around some oddities with PCie sleep state(s). > > Thanks, > > > > Adrian