Re: [PATCH v3 0/9] Parallel CPU bringup for x86_64

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Dear Paul,

Sorry for replying so late. I saw your v4 patches, and tried commit 5e3524d21d2a () from your branch `parallel-5.17-part1`. Unfortunately, the boot problem still persists on an AMD Ryzen 3 2200 g system, I tested with. Please tell, where I should report these results too (here or posted v4 patches).

We have confirmed the issue on multiple AMD CPUs from multiple generations, leading to the guess that only Zen and Zen+ CPU seem affected with Zen3 and Zen2 (only tested ulv) working fine. Tho we struggled to get any output as the failing machines just go silent.

Not working:

Ryzen 5 Pro 2500u and 7 2700U
Ryzen 3 2300G

while e.g.

Ryzen 7 Pro 4750U
Ryzen 9 5950X

both work fine. We will continue to investigate the issue but are currently a bit pulled into other topics.

Thomas, could please maybe help us identify which CPUs and MC-Versions are worth looking at? David suggested you might have a good overview here.


Best regards

Johanna "Mimoja"




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