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[Dan <danlocks@xxxxxxxxx>]

@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.

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You received this bug notification because you are a member of Desktop
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.

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