linux-kernel - Re: Early boot regression from f0551af0213 ("x86/topology: Ignore non-present APIC IDs in a present package")

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Date: Mon, 13 May 2024 16:08:42 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Lyude Paul <lyude@...hat.com>, "Linux regression tracking
 (Thorsten Leemhuis)" <regressions@...mhuis.info>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org, Mario Limonciello
 <mario.limonciello@....com>, Borislav Petkov <bp@...en8.de>, Linux kernel
 regressions list <regressions@...ts.linux.dev>
Subject: Re: Early boot regression from f0551af0213 ("x86/topology: Ignore
 non-present APIC IDs in a present package")

On Wed, May 08 2024 at 19:21, Lyude Paul wrote:
> Regarding the test results - I tried possible_cpus all the way up to 17
> and nothing got the machine to boot. However, possible_cpus=8
> intremap=off did get the machine to boot successfully

Oh. That's interesting.

Does v6.9 (released yesterday) boot with just 'intremap=off' too?

Thanks,

        tglx