Well, dang. The SSD in my laptop has died, in kind of an odd way. A bunch of data on disk has gotten corrupted or returns io errors when read, and writing to it also returns io errors. Of course, SMART status and self test say the drive is fine.

I think I might switch brands when replacing it...

My backups are good, but they only cover my home dir so I've got some reinstalling to do. Kinda bad timing, tomorrow is a holiday so I can't quickly pick up a new drive from a store.