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

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Date: Thu, 30 May 2024 11:13:55 +0200
From: "Linux regression tracking (Thorsten Leemhuis)"
 <regressions@...mhuis.info>
To: Jörn Heusipp <osmanx@...sipp.de>,
 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

On 30.05.24 10:45, Jörn Heusipp wrote:
> 
> 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,

Maybe something changed since then.

> but I figured it out manually. I
> can confirm that it fixes the issue.

Cool. Guess Dave in that case might be happy about a "Tested-by" tag
from you:
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#using-reported-by-tested-by-reviewed-by-suggested-by-and-fixes

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.

#regzbot dup:
https://lore.kernel.org/all/20240516173928.3960193-1-andriy.shevchenko@linux.intel.com/
#regzbot fix: x86/cpu: Provide default cache line size if not enumerated
#regzbot related:
https://lore.kernel.org/all/20240517200534.8EC5F33E@davehans-spike.ostc.intel.com/