rv64mi-p-access.S removed and unexpected behavior when running on OpenPiton Ariane

[Haijai]

Hi,

I noticed that the rv64mi-p-access.S test has been removed from the current RISC-V tests repository. I’m currently running this test on the OpenPiton + Ariane environment, and it continuously loops during execution.

After making some modifications, the fetch exception is now raised correctly. However, the load fault exception is not triggered, and for all the illegal addresses I provide, the test still executes and fails instead of trapping as expected.

I’d like to understand whether this behavior is due to an issue in the test itself or a possible processor bug.

Thanks,
Arun Kumar

[aswaterman]

The test was removed because it made an assumption about the platform that is often but not always true, specifically that physical addresses >= 2^63 are invalid.

I don't know much about the platform you're using, but the test should succeed on platforms for which those addresses are invalid, and the test should not succeed on other platforms. (I don't recall offhand whether the test is supposed to loop forever or promptly fail on platforms for which those addresses are valid.)