On 2016-01-21 14:47, Sven Eckelmann wrote: > On Thursday 21 January 2016 12:56:01 Sven Eckelmann wrote: >> Just installed in on some hardware (2x OM5P + OpenWrt 44654 + compat-wireless >> 2015-10-26) and enabled BATMAN_V. >> >> [ 168.540000] CPU 0 Unable to handle kernel paging request at virtual >> address fffffff0, epc == 86d8301c, ra == 86d8301c >> [ 168.550000] Oops[#1]: >> [ 168.550000] CPU: 0 PID: 265 Comm: kworker/u2:2 Tainted: P >> 3.18.8 #1 >> [ 168.550000] Workqueue: bat_events batadv_v_elp_throughput_metric_update >> [batman_adv] > [..] >> [ 168.550000] epc : 86d8301c >> batadv_v_elp_throughput_metric_update+0x20/0x58 [batman_adv] >> [ 168.550000] Tainted: P >> [ 168.550000] ra : 86d8301c >> batadv_v_elp_throughput_metric_update+0x20/0x58 [batman_adv] > > Who knew that struct station_info changed in v3.18-6219-g6de3980, > v3.18-6235-gb51f3be and v3.18-6217-ga76b194? Wieder keiner!? :) > > So what basically happened was a stack corruption causing the return address > to be bogus. This only happened because the kernel version of cfg80211.h > (which > is used to compile batman-adv) is different than the version in the mac80211 > package (which is used at runtime) I have now synced that structure between > the > OpenWrt kernel and the used compat-wireless, rebuild my OpenWrt and tried > again. > I hope this helps anyone trying to use B.A.T.M.A.N. V on OpenWrt. > > @Felix, would it be ok for you when I propose a > "*-sync-cfg80211-station_info.patch" for the 3.18 generic kernel patches? > Or do you have a good idea how to force the openwrt-routing batman-adv package > against the cfg80211.h of compat-wireless? The openwrt mac80211 package exports its headers to $(STAGING_DIR)/usr/include/mac80211
You could just make the batman-adv package use those includes. - Felix _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
