[BUG]Crash with newer versions of ESP32 board package (Arduino IDE)

[elaw01887]

Are you folks aware that the library seems to have a crashing issue with newer versions of the ESP32 board package (> 3.0.7) and at least some of the newer ESP boards (I'm using the ESP32S3)?

It's discussed here: https://forum.arduino.cc/t/esp32-rebooting-loop-with-espasyncwebserver/1334275

Here's a snippet of my code:
` //ASYNC web server stuff:
ws.onEvent(onAsycnWSEvent); //onAsycnWSEvent is in WebServerStuff.ino
server.addHandler(&ws);

// Web Server Root URL
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
    request->send(LittleFS, "/index.html", "text/html");
});

server.serveStatic("/", LittleFS, "/");

// Start web server
server.begin();

`
The crash happens when server.begin() is executed, and will happen even if I comment out the code above it. It also happens with the "Simple server" example sketch.

I've tested with version 3.3.22 of the web server library and all newer versions and all seem to have the problem.

I'm using this board: https://www.amazon.com/gp/product/B0D9W4Y3F3/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1, but the folks discussing the issue in the Arduino forum thread I think are using different ones.

I don't know how to capture a stack trace but will research it and post back if I can figure it out!

[proddy]

Thought it was fixed in mathieucarbou/AsyncTCP#27

[elaw01887]

I think I figured out how to decode the stack trace? Here's the raw output from the crash:
`Rebooting...
⸮⸮⸮ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0xc (RTC_SW_CPU_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)
Saved PC:0x4037b56e
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce2820,len:0x1188
load:0x403c8700,len:0x4
load:0x403c8704,len:0xbf0
load:0x403cb700,len:0x30e4
entry 0x403c88ac

assert failed: tcp_alloc /IDF/components/lwip/lwip/src/core/tcp.c:1851 (Required to lock TCPIP core functionality!)

Backtrace: 0x40376646:0x3fcab730 0x4037e49d:0x3fcab750 0x40384fd5:0x3fcab770 0x4202f133:0x3fcab8a0 0x4202f29d:0x3fcab8c0 0x420064a8:0x3fcab8e0 0x420135fd:0x3fcab930 0x420056b9:0x3fcab950 0x42018b07:0x3fcab9f0 0x4037f1b2:0x3fcaba10
`

And here's the decoder output:
`
PC: 0x4037b56e

Decoding stack results
0x40376646: panic_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_system/panic.c line 463
0x4037e49d: esp_system_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_system/port/esp_system_chip.c line 92
0x40384fd5: __assert_func at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/newlib/assert.c line 80
0x4202f133: tcp_alloc at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/core/tcp.c line 1851
0x4202f29d: tcp_new_ip_type at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/core/tcp.c line 2006
0x420064a8: AsyncServer::begin() at \home\dfs\Eric's Stuff~Arduino sketchbooks\libraries\AsyncTCP\src\AsyncTCP.cpp line 1274
0x420135fd: AsyncWebServer::begin() at \home\dfs\Eric's Stuff~Arduino sketchbooks\libraries\ESP_Async_WebServer\src\WebServer.cpp line 119
0x420056b9: setup() at \home\dfs\Eric's Stuff~Arduino sketchbooks\libraries\ESP_Async_WebServer\examples\SimpleServer/SimpleServer.ino line 764
0x42018b07: loopTask(void*) at C:\Users\eric.HOME\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.1.1\cores\esp32\main.cpp line 59
0x4037f1b2: vPortTaskWrapper at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c line 139
`

[mathieucarbou]

@elaw01887 : please make you you use the right dependencies before opening an issue.
Your stack traces show that you are either not using the lastest versions of these librairies, or that you are not at all using ESPAsyncWS and AsyncTCP from my forks as described in his project readme.

[elaw01887]

Ah, I didn't realize there were so many versions of the AsyncTCP library! That's now fixed, but as far as I can tell I have the latest ESP Async Web Server:

[mathieucarbou]

Do not rely on this library manager: it does a really poor job.
You should download directly zip files from the original repos.

[elaw01887]

Understood! The problem is that I do a lot of Arduino stuff and have over 100 libraries (probably half of which are Adafruit libraries that are dependencies of other libraries) and it's hard to stay on top of everything "manually". But I can definitely try to be more diligent.

In any event, using the correct Async TCP library fixed the problem, so thanks for your help!

[mathieucarbou]

In that case, do not your a toy IDE like Arduino IDE: use a real development environment like Vscode with pioarduino vscode extension which allows to completely manage an arduino project with a real library dependency manager which takes into account transitivity of dependencies and handle conflicts.

[mathieucarbou]

It's discussed here: https://forum.arduino.cc/t/esp32-rebooting-loop-with-espasyncwebserver/1334275

Here's a snippet of my code:

The link is not working...

[elaw01887]

Weird... I'm not very familiar with the editor here, so I must have messed up inserting the link. But if you copy-paste the text the URL shown is correct.