linux-kernel - Re: [PATCH v3 06/12] x86/amd_nb: Use topology info to get AMD node count

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Message-ID: <20251023170107.0cc70bad.michal.pecio@gmail.com>
Date: Thu, 23 Oct 2025 17:01:07 +0200
From: Michal Pecio <michal.pecio@...il.com>
To: Yazen Ghannam <yazen.ghannam@....com>
Cc: Shyam-sundar.S-k@....com, bhelgaas@...gle.com, hdegoede@...hat.com,
 ilpo.jarvinen@...ux.intel.com, jdelvare@...e.com,
 linux-edac@...r.kernel.org, linux-hwmon@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
 linux@...ck-us.net, mario.limonciello@....com,
 naveenkrishna.chatradhi@....com, platform-driver-x86@...r.kernel.org,
 suma.hegde@....com, tony.luck@...el.com, x86@...nel.org
Subject: Re: [PATCH v3 06/12] x86/amd_nb: Use topology info to get AMD node
 count

On Thu, 23 Oct 2025 09:59:35 -0400, Yazen Ghannam wrote:
> Thanks Michal.
> 
> I don't see anything obviously wrong.

Which code is responsible for setting up those bitmaps which
are counted by topology_init_possible_cpus()?

I guess I could add some printks there and reboot.

> Can you please share your kernel config file for the v6.12.31 build?

Attached.

BTW, I forgot to mention that I have a second seemingly identical
board with same BIOS running Phenom X6 1090T. It is not affected.
Not sure if this is helpful. I haven't tried swapping CPUs.

Download attachment "6.12.31.config" of type "application/octet-stream" (136307 bytes)