linux-kernel - Re: [PATCH 6.6 000/147] 6.6.81-rc2 review

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Message-ID: <CA+G9fYtfmMThUC+erk6jVk8BN0jWJCw=FnKh68ypwhgv65OZ+w@mail.gmail.com>
Date: Thu, 6 Mar 2025 22:59:35 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: stable@...r.kernel.org, patches@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, 
	akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org, 
	patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de, 
	jonathanh@...dia.com, f.fainelli@...il.com, sudipm.mukherjee@...il.com, 
	srw@...dewatkins.net, rwarsow@....de, conor@...nel.org, hargar@...rosoft.com, 
	broonie@...nel.org, Borislav Petkov <bp@...en8.de>, Thomas Gleixner <tglx@...utronix.de>, 
	nik.borisov@...e.com, Arnd Bergmann <arnd@...db.de>, 
	Dan Carpenter <dan.carpenter@...aro.org>, Anders Roxell <anders.roxell@...aro.org>
Subject: Re: [PATCH 6.6 000/147] 6.6.81-rc2 review

On Thu, 6 Mar 2025 at 20:50, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 6.6.81 release.
> There are 147 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Sat, 08 Mar 2025 15:13:38 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.6.81-rc2.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.6.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h


Regressions on i386 the defconfig builds failed with clang-20
and gcc-13 the stable-rc 6.6.81-rc2.

First seen on the
 Good: v6.6.78
 Bad: v6.6.78-442-g8f0527d547fe

* i386 build
  - clang-20-defconfig
  - clang-nightly-defconfig
  - gcc-13-defconfig
  - gcc-8-defconfig

Regression Analysis:
 - New regression? Yes
 - Reproducibility? Yes

Build regression: i386 microcode core.c use of undeclared identifier
'initrd_start_early'
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

## Build log
arch/x86/kernel/cpu/microcode/core.c:198:11: error: use of undeclared
identifier 'initrd_start_early'; did you mean 'initrd_start'?
  198 |                 start = initrd_start_early;
      |                         ^~~~~~~~~~~~~~~~~~
      |                         initrd_start
include/linux/initrd.h:18:22: note: 'initrd_start' declared here
   18 | extern unsigned long initrd_start, initrd_end;
      |                      ^
1 error generated.

## Source
* Kernel version: 6.6.81-rc2
* Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* Git sha: 8f0527d547fe50fe08bab12d39c9a2cfb4f6ef3f
* Git describe: v6.6.78-442-g8f0527d547fe
* Project details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.6.y/build/v6.6.78-437-g9f243f9dd268

## Build
* Build log: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.6.y/build/v6.6.78-442-g8f0527d547fe/testrun/27525967/suite/build/test/clang-20-lkftconfig/log
* Build history:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.6.y/build/v6.6.78-442-g8f0527d547fe/testrun/27526163/suite/build/test/clang-20-lkftconfig/history/
* Build details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.6.y/build/v6.6.78-442-g8f0527d547fe/testrun/27526163/suite/build/test/clang-20-lkftconfig/
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2twuoLsehi5aV5tpYyqa6pqU9cZ/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2twuoLsehi5aV5tpYyqa6pqU9cZ/config

## Steps to reproduce
- tuxmake --runtime podman --target-arch i386 --toolchain clang-20
--kconfig defconfig LLVM=1 LLVM_IAS=1


--
Linaro LKFT
https://lkft.linaro.org