mongoose sends invalid MQTT packets after bulk publish calls

[dingo35]

• My goal is: to have mongoose publish correct MQTT packets After a bulk of publish commands, once in a while an incorrect MQTT packet is sent; it looks like some buffer overflow.
• The result I saw: I managed to catch a malformed packet with wireshark: https://github.com/dingo35/SmartEVSE-3.5/issues/115#issuecomment-2285864598 You can find all logs and actions taken here: https://github.com/dingo35/SmartEVSE-3.5/issues/115

I reworked my code to use internal esp-mqtt and this has no issues, so it makes me believe the problem is in the mongoose code. I tried increasing MG_IO_SIZE to 4096. and a lot of other things (see thread), but nothing seems to help.

Environment

• mongoose version: 7.14 Using ESP32 LWIP stack.
• Compiler/IDE and SDK: PlatformIO core version 6.1.15
• Target hardware/board: ESP32
• Target RTOS/OS (if applicable): Arduino Core

[scaprile]

I'm sorry, I'm too lazy to go reading a thread for some other tool I don't use (with snapshots instead of capture files) to see if somehwere somehow that is related to us. When and if you have some clear indication of a problem with Mongoose and not with the rest of your system, please post the smallest piece of code that reproduces the issue, with a capture file, and we'll gladly take a look at it.

Please read https://mongoose.ws/documentation/#best-practices and follow our guidance. From the docs

NOTE: Since Mongoose's core is not protected against concurrent accesses, make sure that all mg_* API functions are called from the same thread or RTOS task.

Please see our documentation, and follow the guidelines in our tutorials.