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raspberry pi 4 ( aarch64 armv8 ) returns weird value in esr_el1

Hi, in a bare metal program I am writing I am getting an el1h sync exception.

I examine the esr_el1 register and it has a value of 5.

From what I understand, this should be some kind of "Unknown reason" failure (bits 26-31 are 0) but from the docs () I could not find a meaningful bit combination that resembles 5.

far_el1 is 0x0xFFFFFF8000F84A70.

Can anyone give me a hint?

Thanks :-)

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