Adrian, Here's a link to the debug data below. Still a little green to do this debugging, so hopefully didn't do something silly. I did the following thinking it correctly turns on the right debug option needed: "echo '0x00000040' > debug" in the ANI debugfs file. If additional debug options would be helpful, please advise.
https://drive.google.com/file/d/0B2bEy75HhwWhM3JYS2N2WXlUMDg/view?usp=sharing There are several snapshots generally 5 minutes apart of the ANI debugfs files leading up to the point that the H-pol chain is deaf. Refer to "scan.log" which has: 1) 'iw wlan0 station dump' when deaf state showing RSSI 2) 'iw wlan0 scan' to trigger reset 3) 'iw wlan0 station dump' instantly back to normal RSSI Timestamps inserted to correlate with ANI debugfs files. Joe AE6XE http://www.aredn.org On Sat, Oct 10, 2015 at 6:07 PM, Adrian Chadd <adr...@freebsd.org> wrote: > Hi, > > Can you turn on ANI debugging in ath9k and capture what it's doing? > > I've seen this happen on some other outdoor stuff with AR9380 but I > think their setup is more "the interference is terrible". But yes, I'd > like to debug ANI more. :) > > > > -adrian > > > On 8 October 2015 at 21:13, Joe Ayers <j...@ayerscasa.com> wrote: > > We (http://www.aredn.org ) are diagnosing a problem with > > compat-wireless-2014-05-22 for ath9k (under OpenWRT BB) that has > appeared, > > but does not exist in compat-wireless-2012-09-07 (under OpenWRT AA). > > > > While we dig through the commits and learn more about wireless drivers to > > isolate the issue, would appreciate if someone might recognize the issue > > and/or suggest a better path. > > > > Here's a summary of the config and symptoms: > > > > * Ubiquiti Rocket M5 XM with AR9280 on ch 139, 171 (we've taken out our > code > > to extend up to ch 184 to isolate :) ). > > * Reproducable on 5Mhz, 10Mhz, and 20Mhz channel widths > > * Ad-hoc mode with long distance links and OLSR on top. > > * In one configuration, the receive becomes deaf on one chain where all > > signals (if still showing) are attenuated down to near noise floor. > > * Only a strong (+10dB above the others) MIMO dual polarity incoming > signal > > stays working on 2nd chain, which is not attenuated from normal. > > * It's stuck. running an 'iw wlan0 scan' causes reset and all the > stations > > instantly connect back to normal operation. > > * Can occur multiple times per day. Readily reproducible and have seen > in > > multiple locations. > > * One example yesterday at a location where all stations dropped out (4 > > stations within ~2dB signal strengths of each other). Scan restored > back > > to normal. > > * distances are typically 5 to 15 miles links. > > > > We're speculating that the immunity level is getting stuck at high > threshold > > and digging around in the commits accordingly for the moment. > > > > Regards, > > Joe AE6XE > > > > _______________________________________________ > > ath9k-devel mailing list > > ath9k-devel@lists.ath9k.org > > https://lists.ath9k.org/mailman/listinfo/ath9k-devel > > >
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