[sevg]

Ah, HN is letting me reply now.

Irrelevant how fast the USB is. If the filesystem has to do things slower, then simply do things slower. There's no excuse for hard freezes.

> You're trying to drive a Ferrari on a dirt road and claiming the dirt road is ar fault when your Ferrari has issues.

So btrfs in this metaphor is the Ferrari? Yes, I agree with you that my Ferrari definitely 100% has issues XD

You keep talking about btrfs workloads as though it's something crazy for usb firmware to handle. It really isn't. There's a bit of performance overhead, but not so much as to be unusable. And it's just I/O at the end of the day, not some mysterious workload that pushes the wrong buttons. USB firmware is more likely to freak out when doing sustained I/O and the thing gets too hot.

Anyway, I did minimal writes with btrfs before the freezes, and this particular USB drive I was able to push to the limit with XFS. Sustained reads and writes in a benchmark workload. Way more than the manufacturer would have tested for. And no freezes. I rest my case.