Hi Jouni,

I am working on wireless driver brcmfmac (cfg80211-based driver), which 
has an issue with wpa_supplicant that I am debugging. It is difficult to 
reproduce but finally got a good, bad log. The test setup run Ubuntu and 
uses nmcli to setup a connection to the AP:

  nmcli<->NetworkManager<-[dbus]->wpa_supplicant<->brcmfmac.

In the log I noticed a message that reminded me on an old bug I filed a 
while ago (http://hostap.epitest.fi/bugz/show_bug.cgi?id=262).

I want to investigate further, but could use some pointers on tinkering 
wpa_supplicant. Hope you can help me out. Here is the part of the log 
that triggered me:

Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: RX EAPOL from 
98:fc:11:8e:94:57
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: IEEE 802.1X RX: version=2 
type=3 length=117
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]:   EAPOL-Key type=2
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]:   key_info 0x8a (ver=2 
keyidx=0 rsvd=0 Pairwise Ack)
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]:   key_length=16 
key_data_length=22
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: State: 4WAY_HANDSHAKE -> 
4WAY_HANDSHAKE
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: WPA: RX message 1 of 
4-Way Handshake from 98:fc:11:8e:94:57 (ver=2)
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: RSN: no matching PMKID found
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: WPA: PTK derivation - 
A1=00:90:4c:c5:34:23 A2=98:fc:11:8e:94:57
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: WPA: Sending EAPOL-Key 2/4
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: EAPOL: startWhen --> 0
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: EAPOL: disable timer tick
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: EAPOL: SUPP_PAE entering 
state CONNECTING
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: EAPOL: enable timer tick
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: EAPOL: txStart
Mar  7 13:30:45 lb-bun-21 wpa_supplicant[978]: WPA: drop TX EAPOL in 
non-IEEE 802.1X mode (type=1 len=0)

After this the sequence from "RX EAPOL" until "Sending EAPOL-Key 2/4" 
keeps repeating several times. In the end NetworkManager times out in 
setting up the connection. Full log is attached.

Gr. AvS