Fwd: P2P disappears after connect/disconnect

[Liam]

Dear HostAP hackers,

I enable WiFi P2P connections to a Linux host via wpa_supplicant with
a wpa-client I devised. After connect by a Nexus 7 Android tablet and
then disconnect, the Linux host disappears from the tablet's list of
P2P devices, and only reappears after rebooting the host. Neither
reissuing a p2p_ext_listen, nor restarting wpa_supplicant on the P2P
interface brings it back.

I hope someone knows the incantation to re-materialize it :-)

(Pls preserve CC line in responses, as I receive the digest.)

wpa_supplicant 2.5 with -i p2p0 -D nl80211 -c /etc/wpa_supplicant/p2p0.conf
kernel 4.7.2 (mainline)
distro Arch Linux ARM
cpu TI AM3703
radio Marvell sd8787

p2p0.conf:
ctrl_interface=/run/wpa_supplicant
ap_scan=1
device_name=mwifiex-p2p-device
device_type=1-0050F204-1
p2p_listen_reg_class=81
p2p_listen_channel=1
p2p_oper_reg_class=81
p2p_oper_channel=1
p2p_no_group_iface=1
p2p_go_intent=15

my-wpa-client source:
https://github.com/networkimprov/p2p-host/blob/master/main.c

my-wpa-client log:
  PDS: is P2P_EVENT_PROV_DISC_SHOW_PIN
  req: is a msg to wpa_supplicant

$ sudo p2p-host/p2phostd /run/wpa_supplicant/p2p0 75 1500 11111111

req: P2P_EXT_LISTEN 75 1500
   : OK

###: <3>P2P-DEVICE-FOUND ae:22:0b:48:49:61
p2p_dev_addr=ae:22:0b:48:49:61 pri_dev_type=10-0050F204-5
name='Android_7326' config_methods=0x188 dev_capab=0x25
group_capab=0x0 new=1
PDS: ae:22:0b:48:49:61 34633045 p2p_dev_addr=ae:22:0b:48:49:61
pri_dev_type=10-0050F204-5 name='Android_7326' config_methods=0x188
dev_capab=0x25 group_capab=0x0
req: P2P_CONNECT ae:22:0b:48:49:61 11111111 display go_intent=0
   : OK

PDS: ae:22:0b:48:49:61 61911116 p2p_dev_addr=ae:22:0b:48:49:61
pri_dev_type=10-0050F204-5 name='Android_7326' config_methods=0x188
dev_capab=0x25 group_capab=0x0
req: P2P_CONNECT ae:22:0b:48:49:61 11111111 display go_intent=0
   : OK

###: <3>P2P-GO-NEG-SUCCESS role=client freq=2417 ht40=0
peer_dev=ae:22:0b:48:49:61 peer_iface=ae:22:0b:48:c9:61
wps_method=Display
###: <3>CTRL-EVENT-SCAN-STARTED
###: <3>CTRL-EVENT-BSS-ADDED 0 20:4e:7f:92:63:d6
###: <3>CTRL-EVENT-SCAN-RESULTS
###: <3>WPS-AP-AVAILABLE
###: <3>CTRL-EVENT-SCAN-STARTED
###: <3>CTRL-EVENT-SCAN-RESULTS
###: <3>WPS-AP-AVAILABLE
###: <3>CTRL-EVENT-SCAN-STARTED
###: <3>CTRL-EVENT-BSS-ADDED 1 ae:22:0b:48:c9:61
###: <3>CTRL-EVENT-SCAN-RESULTS
###: <3>WPS-AP-AVAILABLE-AUTH
###: <3>Trying to associate with ae:22:0b:48:c9:61
(SSID='DIRECT-4B-Android_7326' freq=2417 MHz)
###: <3>Associated with ae:22:0b:48:c9:61
###: <3>CTRL-EVENT-EAP-STARTED EAP authentication started
###: <3>CTRL-EVENT-EAP-STATUS status='started' parameter=''
###: <3>CTRL-EVENT-EAP-PROPOSED-METHOD vendor=14122 method=1
###: <3>CTRL-EVENT-EAP-STATUS status='accept proposed method' parameter='WSC'
###: <3>CTRL-EVENT-EAP-METHOD EAP vendor 14122 method 1 (WSC) selected
###: <3>WPS-CRED-RECEIVED
###: <3>WPS-SUCCESS
###: <3>P2P-GROUP-FORMATION-SUCCESS
###: <3>CTRL-EVENT-EAP-STATUS status='completion' parameter='failure'
###: <3>CTRL-EVENT-EAP-FAILURE EAP authentication failed
###: <3>CTRL-EVENT-DISCONNECTED bssid=ae:22:0b:48:c9:61 reason=3
locally_generated=1
###: <3>Trying to associate with ae:22:0b:48:c9:61
(SSID='DIRECT-4B-Android_7326' freq=2417 MHz)
###: <3>Associated with ae:22:0b:48:c9:61
###: <3>WPA: Key negotiation completed with ae:22:0b:48:c9:61
[PTK=CCMP GTK=CCMP]
###: <3>CTRL-EVENT-CONNECTED - Connection to ae:22:0b:48:c9:61
completed [id=0 id_str=]
###: <3>P2P-GROUP-STARTED p2p0 client ssid="DIRECT-4B-Android_7326"
freq=2417 psk=f11ba4239bf55bace903536d26f2118404587b0c76931454265a43dc3c7e3622
go_dev_addr=ae:22:0b:48:49:61 [PERSISTENT]
###: <3>CTRL-EVENT-BSS-REMOVED 0 20:4e:7f:92:63:d6
###: <3>CTRL-EVENT-DISCONNECTED bssid=ae:22:0b:48:c9:61 reason=3
###: <3>CTRL-EVENT-DISCONNECTED bssid=ae:22:0b:48:c9:61 reason=3
locally_generated=1
###: <3>P2P-GROUP-REMOVED p2p0 client reason=GO_ENDING_SESSION
###: <3>CTRL-EVENT-BSS-REMOVED 1 ae:22:0b:48:c9:61
###: <3>P2P-DEVICE-LOST p2p_dev_addr=ae:22:0b:48:49:61
^C [after many attempts to re-locate this host]