Hello Ben Right now i am using: AA r38621 wpad - 20130807-1 horst - git-1http://nbd.name/gitweb.cgi?p=aa-mac80211.git;a=summary from http://nbd.name/gitweb.cgi?p=aa-mac80211.git;a=summary which replaced all files from AA mac80211 and hostapd directories.
On 11/18/2013 12:56 PM, Ben West wrote: > Hi cmsv, > > Are still having problems with the recurring "IBSS split detected" issue? Not at the moment. Horst is not detecting IBSS splits and i have ran several iperf tests in order to abuse all the avalable bandwidth between routers. I am however still running tests. > I'm operating a couple dozen UBNT Nanostation Loco M2 units as nodes in > several WPA2-encrypted adhoc meshes (with each node additionally > broadcasting a public AP and private WPA2 AP as virtual interfaces, for > 3 VIFs total). Meshes range from 2 to 4 nodes each. I am using tp-link and d-link routers all atheros. Only adhoc is encrypted with wpa2 (pks2) 2 to 4 routers. > > I'm not seeing the IBSS split problem you describe, although I am having > issues with wpad crashing sporadically, either taking out the node's > IBSS-RSN interface or its private AP, either way requiring reboot to > recover. That is, in my instances where a node drops off a mesh, it is > because that node's wpa_supplicant process crashed, killing its adhoc VIF. I have not seen this issue but i have another issue in hands which forces me to cold reboot some routers. It is described here: http://www.mail-archive.com/openwrt-devel@lists.openwrt.org/msg20575.html The causes the ath9k 9**** router to freeze but i do believe that it is related to tcp traffic and iptables since i have found a work around to prevent the router to freeze. I will post later my conclusions regarding this issue. I also noticed another very strange occurrence related to the freezes. # ls % 77000 770?????H?H?H?H?H?H?H?H?H?H?H?H????$ 9?0000} Enter Z^B????{[2]+: bin dev etc lib mnt overlay proc rom root r?[J??[J????????????[12Du r?[J??[J????????????? sbin sys tmp usr var www ?^@^@^@^@^@^A[ ?^@^@^??????1000] ? ? ?????0?????s ?&L?00] ?[ ?&L?00] ?[ ` 1w>????????s>? ???z ?????}????????i???~??kX??^@^@~@^B^@^H!B?^H^H ?j?j?j?j?j??????????i??%R? I have not found out why i get these files in / Al this only happens with AR9*** > You might look for crash files files from wpa_supplicant or hostapd in > /tmp on problems nodes. The two crash files I've recovered thus far > seem to suggest a buffer overflow in wpad, although I do not know if > that actually triggered by other processes consuming all available RAM, > or something in wpad itself. What wpad release are you using ? > > My nodes are running AA r38347, patched with the mac80211 and hostapd > packages provided in same nbd repo that you quoted: > http://nbd.name/gitweb.cgi?p=aa-mac80211.git;a=summary I am very interested in your progress regarding your problem. Keep me updated. > > > > On Fri, Nov 1, 2013 at 9:50 PM, cmsv <c...@wirelesspt.net > <mailto:c...@wirelesspt.net>> wrote: > > Here's an update detected with horst regarding my testing. > > Although using the git files from trunk to replace mac80211 and hostapd > did solve the problem mentioned before; i found another issue that does > not happen with mac80211 and hostapd from current stable AA which in > its turn suffers from other problems. > > Right now: > DISTRIB_REVISION="r38621" > plus http://nbd.name/gitweb.cgi?p=aa-mac80211.git;a=summary > (wpa_suplicant.sh is not patched with Bruno's beacon_int patch and his > patch fails to apply > > > The routers suffer from IBSS network splits which are detected with > horst with the follwoing "IBSS Split detected" > (2 nodes) > > TSF outputs 0000000000000000 for the other router > Also horst is only able to obtain the nodes ip's if adhoc is not > encrypted. > > This happens every 10 seconds either having adhoc with PSK2 or without > encryption. > > Batman-adv as well as L3 protocols are able to communicate between > routers. > > This new problem does not happen with current stable AA mac80211 and > hostapd. > > This article seems to identify the issue: > > > http://wiki.villagetelco.org/index.php/Information_about_cell-id_splitting,_stuck_beacons,_and_failed_IBSS_merges! > > Cmsv > > > On 10/20/2013 05:37 PM, cmsv wrote: > > Hello Felix > > > > I replaced mac80211 and hostapd from AA tree by the ones from your git > > and recompiled a new image. > > The problem with adhoc and wpa that i described no longer happens and > > both routers are able to communicate with each other with > regardless of > > which one starts or restarts the network; the wifi interface or > reboots. > > > > > > On 10/19/2013 01:38 PM, Felix Fietkau wrote: > >> On 2013-10-19 7:30 PM, cmsv wrote: > >>> I have recently experienced a problem when using wpa encryption > on adhoc > >>> interfaces. > >>> > >>> Description: > >>> When both routers power up at the same time everything works without > >>> problems and bother can see and communicate with each other on > layer 2 > >>> (batman-adv) and layer 3; however if one reboots or restarts the > >>> wireless interface; communication is no longer possible and both > routers > >>> stop seeing each other in both layers. > >>> > >>> Rebooting both at the same time gets them to work again with > each other. > >>> > >>> Someone mentioned that this might be caused due to the latest > hostpad > >>> not being pulled. > >>> > >>> Any feedback is welcome. > >>> > >>> On both routers: > >>> option encryption 'psk2' > >>> wpad 20130405-1 > >>> DISTRIB_REVISION="r38401" > >>> DISTRIB_CODENAME="attitude_adjustment" > >>> DISTRIB_TARGET="ar71xx/generic" > >> Here's a backport of mac80211+hostapd: > >> http://nbd.name/gitweb.cgi?p=aa-mac80211.git;a=summary > >> git://nbd.name/aa-mac80211.git <http://nbd.name/aa-mac80211.git> > >> > >> Please try integrating that into your build tree and see if it > fixes the > >> issue. > > This problem is solved with the provided solution. > > > > There is still something that also changed and maybe is related to > part > > of the described problem above. > > > http://www.mail-archive.com/openwrt-devel@lists.openwrt.org/msg20204.html > > > > mac80211.git also does not output the mac address to the wireless > config. > > > >> > >> - Felix > >> > >> > _______________________________________________ > openwrt-users mailing list > openwrt-us...@lists.openwrt.org <mailto:openwrt-us...@lists.openwrt.org> > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-users > > > > > -- > Ben West > http://gowasabi.net > b...@gowasabi.net <mailto:b...@gowasabi.net> > 314-246-9434
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