linux-kernel - Re: [REGRESSION] commit fbf6449f84bf5e4ad09f2c09ee70ed7d629b5ff6 (Linux 6.7+) crashes during boot

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Date: Thu, 30 May 2024 10:45:24 +0200
From: Jörn Heusipp <osmanx@...sipp.de>
To: Linux regressions mailing list <regressions@...ts.linux.dev>,
 linux-kernel@...r.kernel.org
Cc: x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>, Dave Hansen <dave.hansen@...ux.intel.com>,
 Borislav Petkov <bp@...en8.de>, Andy Lutomirski <luto@...nel.org>,
 Peter Zijlstra <peterz@...radead.org>, Adam Dunlap <acdunlap@...gle.com>,
 1071378@...s.debian.org
Subject: Re: [REGRESSION] commit fbf6449f84bf5e4ad09f2c09ee70ed7d629b5ff6
 (Linux 6.7+) crashes during boot


Hello!

On 30/05/2024 09:27, Linux regression tracking (Thorsten Leemhuis) wrote:
> On 30.05.24 08:55, Jörn Heusipp wrote:

>> commit fbf6449f84bf5e4ad09f2c09ee70ed7d629b5ff6 ("x86/sev-es: Set
>> x86_virt_bits to the correct value straight away, instead of a two-phase
>> approach") crashes during boot for me on this 32bit x86 system.
>
> FWIW, not my area of expertise, but there is a patch from Dave with a
> Fixes: tag for your culprit up for review:
> https://lore.kernel.org/all/20240517200534.8EC5F33E@davehans-spike.ostc.intel.com/

That did not apply cleanly to 6.10-rc1, but I figured it out manually. I
can confirm that it fixes the issue.

Best regards,
Jörn