I'll let the image speak for itself, because I don't even want to rewrite the toot at this point...
@thomy2000 please check if your drive is ok. A common problem for this is when a certain file can't be loaded or written.
@fabiscafe I've thought about this as well, but I run the occasional filesystem check and nothing seems to be wrong. Is there a tool you know of that can help validate this?
@thomy2000
e2fsck has "-c" parameter, which makes it perform a check whether blocks can actually be written. If you are using ext2/3/4 of course.
But otherwise — yeah, long SMART test might shed some light, you can initiate it with smartctl from smartmontools. I'd advise booting from some sort of rescue media to perform the test so your system won't be interfering with it.
@fabiscafe
