It sounds like the SSD is bad. I encountered this with an OCZ Vertex Plus+.

Under windows, it worked OK, then it started getting errors. not booting, then I started getting bad blocks, and then SMART failed.

Pretty sure you got a bad drive. Sounds exactly like what I went through. If you have a PC, pop it in and try running a SMART-enabled utility. Bet it will fail block scan tests and/or SMART. to test, get something like Ultimate Boot CD. they have a diagnostic that will do a scan of the whole SSD (read and write) and see what it does.