mirror of
https://github.com/espressif/esp-idf
synced 2025-03-11 10:09:08 -04:00
When CONFIG_ESP32_RTCDATA_IN_FAST_MEM is enabled, RTC data is placed into RTC_FAST memory region, viewed from the data bus. However the bootloader was missing a check that this region should not be overwritten after deep sleep, which caused .rtc.bss segment to loose its contents after wakeup.