[GH-ISSUE #1751] OnDemand AP fails with unhandled exception #1481

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opened 2026-02-28 01:30:14 +03:00 by kerem · 2 comments

kerem commented

2026-02-28 01:30:14 +03:00

Owner

Originally created by @kungfupizza on GitHub (Jul 15, 2024).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1751

Basic Infos

Hardware

WiFimanager Branch/Release: Master

Esp8266/Esp32:

Hardware: ESP32-s3

Core Version: 3.0.0, staging

Description

When running WM as an ESP-IDF task and putting the WM into OnDemandPortal when a button is pressed, gets me to an unhandled exception. Very much reproducable at my end.

Settings in IDE

Module: ESP32S3 M1

Additional libraries:

ESP IDF task

static void wtask(void *pvParameters)
{
	WiFi.mode(WIFI_STA);
	wm.setConfigPortalTimeout(30);
	wm.setHostname(PRJ_CONFIG_WIFI_MANAGER_HOSTNAME);
	wm.autoConnect();

	wm.setAPCallback(ap_start_cb);
	wm.setSaveConfigCallback(wifi_connected_cb);

	while (true)
	{
		wm.process();
		vTaskDelay(pdMS_TO_TICKS(100));
	}
}

on button press callback

static void wifiSetupModeCb(void)
{
  if (wm.getConfigPortalActive())
  {
	  wm.stopConfigPortal();
  }
  wm.setConfigPortalTimeout(30);
  wm.startConfigPortal();
}

NOTE: Instance of the class is defined as a static in the code
static WiFiManager wm;

Debug Messages

I (7074) wifi:mode : sta (f4:12:fa:86:76:08) + softAP (f4:12:fa:86:76:09)
I (7074) wifi:Total power save buffer number: 16
I (7075) wifi:Init max length of beacon: 752/752
I (7078) wifi:Init max length of beacon: 752/752
I (7085) esp_netif_lwip: DHCP server started on interface WIFI_AP_DEF with IP: 192.168.4.1
Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.

0x4203a411: WiFiManager::processConfigPortal() at <path>/WiFiManager.cpp:860

<path>/WiFiManager.cpp:860 points to

//HTTP handler
server->handleClient();

in the code

Originally created by @kungfupizza on GitHub (Jul 15, 2024). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1751 ### Basic Infos #### Hardware WiFimanager Branch/Release: Master Esp8266/Esp32: Hardware: ESP32-s3 Core Version: 3.0.0, staging ### Description When running WM as an ESP-IDF task and putting the WM into OnDemandPortal when a button is pressed, gets me to an unhandled exception. Very much reproducable at my end. ### Settings in IDE Module: ESP32S3 M1 Additional libraries: ### ESP IDF task ```cpp static void wtask(void *pvParameters) { WiFi.mode(WIFI_STA); wm.setConfigPortalTimeout(30); wm.setHostname(PRJ_CONFIG_WIFI_MANAGER_HOSTNAME); wm.autoConnect(); wm.setAPCallback(ap_start_cb); wm.setSaveConfigCallback(wifi_connected_cb); while (true) { wm.process(); vTaskDelay(pdMS_TO_TICKS(100)); } } ``` ### on button press callback ```cpp static void wifiSetupModeCb(void) { if (wm.getConfigPortalActive()) { wm.stopConfigPortal(); } wm.setConfigPortalTimeout(30); wm.startConfigPortal(); } ``` `NOTE:` Instance of the class is defined as a static in the code ` static WiFiManager wm; ` ### Debug Messages ``` I (7074) wifi:mode : sta (f4:12:fa:86:76:08) + softAP (f4:12:fa:86:76:09) I (7074) wifi:Total power save buffer number: 16 I (7075) wifi:Init max length of beacon: 752/752 I (7078) wifi:Init max length of beacon: 752/752 I (7085) esp_netif_lwip: DHCP server started on interface WIFI_AP_DEF with IP: 192.168.4.1 Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled. 0x4203a411: WiFiManager::processConfigPortal() at <path>/WiFiManager.cpp:860 ``` `<path>/WiFiManager.cpp:860` points to ``` //HTTP handler server->handleClient(); ``` in the code

kerem commented

2026-02-28 01:30:15 +03:00

Author

Owner

@tablatronix commented on GitHub (Jul 16, 2024):

You should probably feed wdt in that loop

@tablatronix commented on GitHub (Jul 16, 2024): You should probably feed wdt in that loop

kerem commented

2026-02-28 01:30:15 +03:00

Author

Owner

@kungfupizza commented on GitHub (Jul 16, 2024):