On 280x sigt algo generate only invalid shares.
@ semtexzv, do you need info.db for analyzing, or you are aware?
Yes I'm aware, and I'm trying to track it down, try running the 0.0.5 version.
Also, amd series 2xx and 3xx are not working for a lot of people, I'm currently working on some kernel changes, but it seems that I won't be able to do anything about it.