Re: SGI MIPS, Speculative Execution issue

[Jason Thorpe <thorpej%me.com@localhost>]

> On Oct 27, 2024, at 3:50 PM, DiTBho Down in The Bunny hole <downinthebunnyhole%gmail.com@localhost> wrote:
> 
> I wonder why the linux kernel perfectly runs on an O2/R5K, while it
> crashes in less than 10 seconds from boot on an O2/R10K?
> If we assume that it is the CPU that does not implement any
> cache-coherency mechanism, then why does Linux kernel run perfectly on
> an Octane/R10K?

The obvious answer is that there’s a bug in the NetBSD R10K support.  My guess is that it doesn’t get tested all that often.

Anyway, a good first crack at figuring out what the bug is would be to know exactly how it crashes.  Can you provide that information?  Be as specific and detailed as possible.

-- thorpej