It's really sensitive to the (Linux) driver/compiler/library versions all lining up. If you get the blessed Ubuntu kernel version and use it with the exact corr

It's really sensitive to the (Linux) driver/compiler/library versions all lining up. If you get the blessed Ubuntu kernel version and use it with the exact corresponding driver from dkms and the matching userspace version it's reasonably solid. If you use the driver in Linux upstream, whether you have a good time or a terrible one varies with the age of the userspace libraries you're pairing with it. I don't know what to do about this setup. I think it's an artifact of gearing testing towards "releases" of the entire stack with specific HPC operating systems in mind. To do this right, each component would need to be individually solid and deal with version/interface slip relative to other components, which means the cross product of testing patterns is rapidly infeasible. I'm thinking about it but don't see a solution yet.