[Q] _poll(): rx timeout 4

[judge2005]

Description

My application uses the SPP bluetooth classic profile, as well as running a web server using web sockets.
Occassionally I get these messages on the console:

[ 18343][D][AsyncTCP.cpp:1131] _poll(): rx timeout 4

With this platformio.ini file it doesn't matter, everything keeps working (which is an improvement over the me-no-dev
async stack, which would just become unresponsive to network traffic):

platform = espressif32 @ 6.9.0
board = esp32-pico-devkitm-2
framework = arduino
platform_packages = framework-arduinoespressif32 @ 3.20016.0

However I noticed you are going to be end-of-lifing this, so I tried using this config:

platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.10/platform-espressif32.zip
board = esp32-pico-devkitm-2
framework = arduino

instead (i.e. ESP-IDF 5.3.2 and arduino-esp32 3.1.0), but this brings me back to the server becoming unresponsive. In fact mDNS also stops working, and I suspect sntp does too. SPP keeps working fine.

Link:
Well its a complicated application. It runs BT SPP, ASyncWebServer and web sockets so probably also needs a client to make it happen, so at this point if you have suggestions about how I might narrow down the issue, I don't mind getting my hands dirty.

Edit: The code for the entire application is here: https://github.com/judge2005/TimeFliesBridge/blob/main/src/main.cpp

Board
esp32-pico-devkitm-2

Stack trace

No stack trace, just an unresponsive network stack.

BTW, thanks for keeping this project going - at this point I wouldn't have anything that worked reliably if you hadn't.

[mathieucarbou]

@judge2005 : hello, I've just updated the issue template. can you please go through it below and give the missing info when applicable. Thanks!

PLEASE MAKE SURE TO READ THE RECOMMENDATIONS BEFORE OPENING A BUG REPORT:

https://github.com/ESP32Async/ESPAsyncWebServer?tab=readme-ov-file#important-recommendations-for-build-options

PLEASE READ THE FOLLOWING BEFORE OPENING A BUG REPORT:

If you want to discuss a feature, improvement, or as a question, please create a discussion here: https://github.com/ESP32Async/ESPAsyncWebServer/discussions/categories/general

If you have a crash, regression or found an issue, please give the following information:

• Which board:
• Which platform (ESP8266, ESP32):
• AsyncTCP version (if applicable):
• AsyncTCP repository location you use (if applicable and if you use one coming from elsewhere):
• ESPAsyncTCP version (if applicable):
• ESPAsyncTCP repository location you use (if applicable and if you use one coming from elsewhere):
• Do you use AsyncTCPSock (y/n):

Please post a complete decoded stack trace below in case of a crash (if applicable):

Please post some code, ino file, minimal reproductible use case (if applicable):