.. > This is the "known" list of failures. I don't currently run kunit tests > on nios2 or riscv32, for example, nor on any architectures with no qemu > support. nios2 is definitely going to 'crash and burn' if you do a misaligned access. Although Intel (aka the Altera bit) are claiming current version of their Quartus fpga build software is the last one the will support the nios2. They are expecting everyone to move to a risc-v soft cpu instead. We aren't happy about that, I doubt some of the big telco's are either - I believe some mobile base stations have fpga with a lot of nios2 in them - almost certainly running with a few kB of code and data memory and running small control tasks. If you want to run Linux, find an fpga with an ARM core. There are some solutions - like writing a compatible soft cpu. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)