@Olivier & @Anders: I have a dual-band wireless router with where the 5ghz and 2.5ghz radios have both different SSID and diferent BSSID.
So the constant scans are not triggered by multiple APs with the same SSID in every case. Pinning the BSSID stopped the scans, so many thanks to ricklee518. I remember seeing that scans are initiated by NetworkManager, and the 2min interval is hardcoded with no option for adjustment. I do not know or remember the conditions which trigger the scans, but I didn't go looking again. If it is in fact looking for alternate BSSIDs, and none are found, I suggest a logarithmic scan interval backoff. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to wpa in Ubuntu. https://bugs.launchpad.net/bugs/1323089 Title: wpa_supplicant writes to syslog every 2 minutes Status in “wpa” package in Ubuntu: Confirmed Bug description: Ubuntu 14.04 LTS wpasupplicant 2.1-0ubuntu1 wpa_supplicant is writing to syslog every couple of minutes. Example output: May 25 19:57:18 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 19:57:23 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 May 25 19:59:18 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 19:59:23 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 May 25 20:00:58 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:01:18 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:01:24 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 May 25 20:03:18 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:03:23 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 May 25 20:05:18 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:05:23 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 May 25 20:05:58 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:07:18 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:07:23 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 May 25 20:09:18 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:09:23 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 May 25 20:10:58 ubuntu wpa_supplicant[1161]: wlan0: CTRL-EVENT-SCAN-STARTED May 25 20:13:18 ubuntu wpa_supplicant[1161]: message repeated 2 times: [ wlan0: CTRL-EVENT-SCAN-STARTED ] May 25 20:13:23 ubuntu wpa_supplicant[1161]: nl80211: send_and_recv->nl_recvmsgs failed: -33 The message seems harmless as far as the network is concerned, meaning there is no problem with the wifi connection. But it's spamming the syslog, making it very difficult to find any other thing there, and it's generating constant writes to disk, and an unnecessarily large syslog file. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1323089/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp