Mystery in part solved: (apparently) NetBSD dislikes the Ugreen NVMe enclosure GTIN 06941876232673

[Ellie <el%horse64.org@localhost>]

On 11/4/26 23:11, Ellie wrote:
> All I know anymore for sure is that the system freezes sometimes. 

Dear NetBSD users community,

Thanks so much for enduring my previous confused emails.

I managed to resolve my freezing mystery in part, by finding the freeze 
trigger: It's the UGREEN NVMe M.2 SSD Enclosure USB 3.2 Gen 2 from 
Ugreen Gorup Limited, GTIN 06941876232673.

I found out by accident because to more easily switch between Linux and 
NetBSD, I bought a 2nd USB NVMe enclosure, ICY BOX M.2 PCIe SSD USB 3.1 
Gen 2 IB-1817M-C31. And with this one, the freezes are just gone.

I still think this might be a NetBSD bug, because the UGREEN enclosure 
worked fine for almost an entire year(!) when running a heavily used 
Linux install. I had a different SSD in there however, but that would be 
the only difference.

Anyway, I can't tell you whether this is still worth looking into, or 
how much this is relevant for any other users in the future.

I suppose at least I've documented this potential incompatibility on the 
mailing list.

Regards,

Ellie