alt.hn

5/30/2026 at 8:05:21 PM

A disappearing Service Processor (2025)

https://oxide.computer/blog/cosmo-sp

by mooreds

5/30/2026 at 9:32:08 PM

Short version: "It turned out our chosen base address for the FMC (FPGA Mezzanine Card) bus had a default memory type of Normal Cached."

They accidentally put an external non-memory device behind the cache. That's never going to work right, but might work some of the time.

by Animats

5/31/2026 at 3:13:09 AM

An amateur embedded systems mistake in my opinion.

by throwawaypath

5/30/2026 at 11:11:14 PM

Harkens me back to Sun/Sparc hardware and Solaris.

by indigodaddy

5/30/2026 at 9:35:05 PM

For the uninitiated, Service Processor (SP) is just another kind of Baseboard Management Controller.

by als0

5/30/2026 at 11:16:36 PM

Bryan's going to have an aneurysm.

by wmf

5/31/2026 at 3:01:09 AM

I have died.

by bcantrill