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                                            Toni Gualtieri

Kernel Crashes on Raspberry Pi Zero 2 W

Hello, During investigation, there is a suspicion that something might be wrong at the mmc layer. ![image](https://github.com/user-attachments/assets/ac7fa3c9-e4a0-4cc4-a1b9-90fa9f78ae31) As you can see, there are a lot of cmd53 write,read errors. As...

Kernel Crashes on Raspberry Pi Zero 2 W

Thanks for the quick response. Any advice on debugging the SDIO or MMC layer ? I am asking, because I would like to take some parts out of the equation....

Kernel Crashes on Raspberry Pi Zero 2 W

The output of vcgencmd measure_volts is volt=1.3563V As for the WiFi chip, it is connected to RPi 3V3 rail.

Kernel Crashes on Raspberry Pi Zero 2 W

Yes, both are disabled.

Kernel Crashes on Raspberry Pi Zero 2 W

I did an experiment, by adding an artificial load parallel to the 3V3 rail. Before connecting the HAT to pi zero 2w: 3.277V After adding the HAT to pi zero...