[Bug 204789] Boot failure with more than 256G of memory on Power9 with 4K pages & Hash MMU

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=204789

--- Comment #10 from Michael Ellerman (michael at ellerman.id.au) ---
Can you boot a good kernel and do:

$ sudo grep RAM /proc/iomem

And paste the output. Just to confirm what your memory layout is.

What arrangement of DIMMs do you have? It's possible you could work around the
bug by changing that, depending on how many DIMMs and slots you have.

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