[kbolino]

The feature is only on SPARC, not x86. Oracle killed in-house SPARC development in 2017, and they abandoned OpenSPARC after they acquired Sun, so it's effectively a dead architecture. The software won't work without the hardware to run it on.

[pjmlp]

Fujsitsu also does SPARC, and contrary to HP-UX, people still do buy Solaris.

EDIT:

https://www.oracle.com/servers/sparc/

https://www.fujitsu.com/global/products/computing/servers/un...

Finally, it is up to Intel and AMD to come up with hardware memory tagging, so far they have messed up all attempts, with MPX being the last short lived one.

[kbolino]

It's good info, and I wouldn't rush a migration off of SPARC systems if I was already using them, but slow death is still death. It was already worrying that workstations were killed off by Sun before the Oracle acquisition; it seems quite clear that no one has been serious about spreading adoption of the architecture for more than two decades now.

[rbanffy]

Even Fujitsu has been moving away from SPARC. What was the last SPARC Fujitsu designed?

[pjmlp]

What matters is that they are still selling them.

[rbanffy]

Kind of. Atos still sell GCOS/GECOS mainframes, but they are Xeon boxes running emulators. Same with Unisys and MCP (which was written in an ALGOL and had bounds checked IIRC).