[johnnym]

 nasid is the number of the node board (hub plus 2 CPUs), which also defines the 4GB address range of node.

For a better understanding of the archtiecture look ath the Orign and Onyx2 Programmers Reference Manual (007-3410-001.pdf).

That was indeed helpful for understanding. And sorry for being calm so long, but I was later otherwise occupied. But I did indeed test my modifications on a dual-node Origin200. They really made a difference this time, though the result was not what I have hoped for: The machine crashes when it starts to activate the hardware of the second node. As this works with unmodified sources, it looks like even the CPUs for the second node are not activated before the kernel has activated all the hardware of the first node. So it doesn't work yet, but I know I was tinkering at the "right" spot.

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A general sorry for no news since May, but I got heavily involved in trying to rescue another architecture but this time in the Linux world, leaving me not much time for OpenBSD/sgi. In the end we didn't prevail and ia64 got removed from Linux with 6.7-rc1 despite our efforts, but we're trying to maintain it outside of the kernel in the hope that it will make it back in in the future. You can read part of the story on LWN and El Reg, but make sure to also read the primary sources. 

Despite all that I did manage to do something for OpenBSD/sgi, too:

• This includes the 7.4 release (currently only the kernels, but you already know that you can use them with octeon file systems). As you can check in [the dmesg/boot logs I posted on NYC*BUG's dmesgd]https://dmesgd.nycbug.org/index.cgi?do=i...y+mnemonic these work well on all my compatible machines. This time no issue with the R10000 Indigo².  I could also get Chulo to test out OpenBSD/sgi on an Octane which seemed to have worked out pretty well.
  
  
• I also managed to build the release files for 7.2 (w/o Xenocara, w/o LLVM/clang and w/o an install72.iso (which might require Xenocara)), find them on my server, find more info on the 7.2 release page
  

For the future I plan to also build the release files for 7.3 and 7.4 and there's also the next release somewhen during the first half of 2024.

Happy holiday and have some fun in 2024 - maybe with OpenBSD/sgi.