Max Prokhorov

Don't see how Core is involved though. Plus, it is 2.7.4 Comparing your builds, there is LittleFS & SDFS included in the GH_Actions one. I'd look at the build system...

Part of the PIO build script for is here, but it is mostly build flags https://github.com/esp8266/Arduino/blob/2.7.4/tools/platformio-build.py Other part is in the platform files How it is linked in the Actions...

I do wonder why compilation size also differs with `lib_ldf_mode = chain` (aka default one) vs. the `lib_ldf_mode = deep+`. re. `FS_NO_GLOBALS`, SDFS.h is doing `using namespace fs;` Why I...

> The espressif sdk provides the function system_update_cpu_freq() but this does not play nice with the arduino core which seems to assume that the clock speed is set at compile...

> No idea if that's still the case, I guess a simple way to check is to -Wl,--wrap the frequency switch function and see when it gets called and with...

And as #6701 already mentioned, this is somewhat different for the secure variant: https://github.com/esp8266/Arduino/blob/9d024d17fd18dffa569fa646b5326b5e8f58b0d5/libraries/ESP8266WiFi/src/WiFiClientSecureBearSSL.cpp#L259-L264 But, it's unclear whether this refers to the WiFiClient interface or the basic-socket WiFiClient class

> The TLS context is supposed to match the WiFiClient class. ...true, but also note that it is used internally. can update, but it may be better suited as a...

Just as an additional info, this small python script does the decoding using addr2line: https://github.com/janLo/EspArduinoExceptionDecoder (and https://github.com/me21/EspArduinoExceptionDecoder is the fork with Windows compatibility fixes) No OOM parser though. But I...

I don't think it should? [IDF has a different output for backtrace](https://github.com/espressif/ESP8266_RTOS_SDK/blob/e1d70c951945951091109284160b530b15f07d22/components/freertos/port/esp8266/panic.c#L102)

Can the issue be reproduced with our current git version? See the instructions at https://arduino-esp8266.readthedocs.io/en/latest/installing.html#using-git-version