Framework = arduino, espidf ESP32-S3 xTaskCreate() crashes

1

Making progress with framework = arduino, espidf using examples but finding xTaskCreate() throws a stack overflow. This works with just an ESP32 dev board such as the TTGO T-Display but does not work with ESP32-S3. (minimal code example below)

**Are there some other settings I am missing here to get this working with ESP32-S3 (which is my go-to board for all new development)?
**

error messages: (also some monitor weirdness that looks like mis-matched baud rate but they are definitely matched)

...
␛[0;32mI (0) cpu_start: Starting scheduler on APP CPU.␛[0m
␛[0;32mI (1225) spiram: Reserving pool of 32K of internal memory for DMA/internal allocations␛[0m***ERROR*** A stack overflow in task arduino_task has been detected.

Backtrace: 0x403764ed:0x3fce9d40 0x4037db79:0x3fce9d60 0x40381469:0x3fce9d80 0x4037fc6b:0x3fce9e00 0x4037dc30:0x3fce9e20 0x4037dc26:0xffffffff |<-CORRUPTED

platformio:

[env:esp32-s3-devkitc-1]
platform = espressif32
framework = arduino, espidf

monitor_speed = 115200
board = esp32-s3-devkitc-1
;board_build.arduino.memory_type = dio_opi ; set to octal in SDKconfig
board_build.partitions = default_partitions.csv

build_flags = 
	-I./src/
	-DCORE_DEBUG_LEVEL=5
	-DBOARD_HAS_PSRAM
	-mfix-esp32-psram-cache-issue
	-fmax-errors=5

Key SPIRAM settings in sdkconfig.esp32-s3-devkitc-1

CONFIG_ESP32S3_SPIRAM_SUPPORT=y

#
# SPI RAM config
#
# CONFIG_SPIRAM_MODE_QUAD is not set
CONFIG_SPIRAM_MODE_OCT=y
CONFIG_SPIRAM_TYPE_AUTO=y

minimal code example:

#include <stdio.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include "sdkconfig.h"
#include <Arduino.h>

void arduinoTask(void *pvParameter)
{
    Serial.begin(115200);
    delay(100);
    Serial.println("Hello World");

    while(1) {
        Serial.println("looping");  
        delay(1000);
    }
}

extern "C" void app_main()
{
    // initialize arduino library before we start the tasks
    initArduino();

    xTaskCreate(&arduinoTask, "arduino_task", configMINIMAL_STACK_SIZE, NULL, 5, NULL);
}

default_partition.csv:

# Name,   Type, SubType, Offset,  Size, Flags
nvs,      data, nvs,     0x9000,  0x5000,
otadata,  data, ota,     0xe000,  0x2000,
app0,     app,  ota_0,   0x10000, 0x140000,
app1,     app,  ota_1,   0x150000,0x140000,
spiffs,   data, spiffs,  0x290000,0x170000,
coredump, data, coredump,,        64K
2

Okay. So give it more stack if it says stack overflow.

3

Hello Max,
Well yes, of course… silly me to assume that examples should actually work with the chips listed as supported… especially with such a minimal program, I was surprised to see a stack overflow 8^(

I believe the configMINIMAL_STACK_SIZE is just simply too small for the ESP32-S3.

I triangulated on a value that works…an additional 380 words of stack.

xTaskCreate(&arduinoTask, "arduino_task", configMINIMAL_STACK_SIZE + 380, NULL, 5, NULL);

Thanks Max for helping me with the “obvious”.

I submitted an issue to https://github.com/platformio/platform-espressif32/issues/1190 as configMINIMAL_STACK_SIZE appears inadequate for ESP32-S3 in examples #1190

Pete