Well Ron, even if the flash would be “bad”, data integrity is still ensured when reading. Just writing is impossible then. Of course a really bad fs-driver could still make it worse 😉
This is highly peculiar. Has the slug been running fine otherwise, or did you just receive it?
Oh, and you don’t use any NTFS-formatted drives, btw? 🙄
I’m not a kernel guru or anything, but it looks like the error comes when the kernel is trying to evict in-memory pages to swap. So it looks like a problem on write. I’m going with bad flash as a diagnosis.