BLE crashes from Wifi issue

[wzaggle]

System still crashes Ble search on some form of Wifi disconnect.

I (11552633) wifi: bcn_timout,ap_probe_send_start
I (11555134) wifi: ap_probe_send over, resett wifi status to disassoc
I (11555135) wifi: state: run -> init (1)
I (11555135) wifi: pm stop, total sleep time: 0/-1385824691

Then remaining heap starts to go down by 2948 bytes for each
esp_ble_gap_start_scanning(5);
and BLE search stops finding servers but no apparent errors.

Then eventual system restart from lack of memory.

[wzaggle]

I am using the Arduino IDE, and this delay of 1800 ms seemed to (sort of) fix it, following an Open event and prior to getting a battery service characteristic. More or Less delay does NOT work. Will now run for hours without crashing but eventually only sees one or two out of 10 BLE Servers. Also a small delay after getting ESP_GAP_BLE_SCAN_RESULT_EVT callback cured some of the other dual BLE/Wifi issues. And a delay of 4000ms following Wifi start allowed Wifi and BLE to both start if Wifi starts first. I am confident I have only relieved a symptom and not addressed the real issues. But offered this to those who are looking for the real problems.

case ESP_GATTC_OPEN_EVT:
conn_id = param->open.conn_id;
if (param->open.status == ESP_GATT_OK) {
delay(1800);
esp_ble_gattc_get_characteristic(appGattcIf, conn_id, &batt_service_id, NULL);
}
break;

Additional problems seem to occur when a DISCONNECT event callback happens before a CLOSE event callback, following a failed GET CHARACTERISTIC call. After this happens a system crash is soon to follow.