Spike executed an instruction that does not meet expectations.

[ha0lyu]

During testing with Spike, I noticed that the instruction at pc = 0x800005ac differs from the one executed by Spike.

As observed, the register has become hstatus, which is not the expected value.

test.zip

[DavidYu360]

1. The trace in the post contains hypervisor-related CSR, and maybe the spike is not set for supporting hypervisor. That is the possible reason why spike raises illegal instruction exception.
2. I can not find the instruction "csrr sp, hstatus" in the dump or elf file, please have a check if the ELF file in the attachment is the "real" elf file you fed to spike.

[heiyuen1999]

Check whether there is a store that modifies the highest byte of the address 0x800005ac.