Hi, I have found a race problem in mac80211/mlme.c and rt2x00 When the wpa_supplicant trigs an AP scan, mlme saves current configuration and start scanning. When the scan is complete, a SIOCGIWSCAN is sent and the saved configuration is restored. Since the SIOCGIWSCAN signal is send before the restore, a wpa_supplicant initiated SIWFREQ may hit the restore operation. The result is that local->ops->config() may be called by two different processes at the 'same' time. In the rt2x00 driver, rt2x00mac_config() may 'optimise' (skip) the channel set operation. The ultimate result/error is that the first authentication will happen on wrong (old) channel. I have moved the SIOCGIWSCAN code section after the restore operation and it seems to work. There is most likely a better solution but I leave that for the experts :) /Lars -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
