Random memory corruption faults on ESP32-WROVER rev.1 and rev.2 when running in dual-core mode

[Andreas]

Looking for things like https://github.com/espressif/esp-idf/search?q=bad00bad coming from Troubleshooting the recent Pycom Firmware Release 1.20.1.r1, we want to drop some more pointers here.

• Memory corruptions with std::string in SPI RAM (IDFGH-596) · Issue #3006 · espressif/esp-idf · GitHub
• https://github.com/espressif/esp-idf/issues/3624
• https://github.com/espressif/esp-idf/issues/3765
• About CONFIG_SPIRAM_CACHE_WORKAROUND · Issue #2080 · espressif/arduino-esp32 · GitHub

Apparently, ESP32 WROOM rev.3 will fix these issues in hardware.

– PSRAM Cache Issue stills exist (IDFGH-31) · Issue #2892 · espressif/esp-idf · GitHub