Compiling Micropython - Guru Meditation Error: Core 1 panic'ed (StoreProhibited). Exception was unhandled.

[beka]

Dear All,

I have a problem with a WROVER module reseting with "Guru Meditation Error: Core 1 panic'ed (StoreProhibited). Exception was unhandled.", after flashing with micropython compiled with support for SPIRAM. It works okay when SPIRAM is not enabled. I am using ESP-IDF version 4.4 and Micropython 1.18 Master branch. Any suggestions on what could fix this issue.

Best

[tepalia02]

The Guru medication error sometimes occurs due to a bad USB cable or inappropriate power supply. Have you checked them out? Here is also a thread that may give you some hints: https://github.com/espressif/arduino-esp32/issues/3634

[beka]

I tried another cable but no change. The thing is it works fine if I do not enable SPIRAM support in menuconfig. It was also working fine with Micropython v1.14-152-g6f06dcaee-dirty compiled with ESP-IDF v4.4-dev-473-gc49d03b8e. This issue is with the latest master branch of Micropython 1.18 and the lates master ESP-IDF. I checked the links but I don't really think I have the knowhow to debug Micropython.

Thanks