linux-kernel - Re: [PATCH 6.12 000/150] 6.12.18-rc1 review

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Message-ID: <CA+G9fYvwoYVG8wgz6Lu68EO1z3m4mbBWroGEXL2w5D7P_4SG-g@mail.gmail.com>
Date: Thu, 6 Mar 2025 17:41:30 +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, Ryan Roberts <ryan.roberts@....com>, 
	Catalin Marinas <catalin.marinas@....com>, Arnd Bergmann <arnd@...db.de>, 
	Dan Carpenter <dan.carpenter@...aro.org>, Will Deacon <will@...nel.org>
Subject: Re: [PATCH 6.12 000/150] 6.12.18-rc1 review

On Wed, 5 Mar 2025 at 23:35, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 6.12.18 release.
> There are 150 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 Fri, 07 Mar 2025 17:44:26 +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-6.12.18-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Regressions on arm64 the defconfig builds failed with clang-20 and gcc-13
the stable-rc 6.12.18-rc1 and 6.13.6-rc1.

First seen on the 6.12.18-rc1
 Good: v6.12.14
 Bad: 6.12.18-rc1

* arm64, build
  - clang-20-defconfig
  - clang-nightly-defconfig
  - gcc-13-defconfig
  - gcc-8-defconfig

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

This commmit is causing build regressions,
  arm64: hugetlb: Fix huge_ptep_get_and_clear() for non-present ptes
  commit 49c87f7677746f3c5bd16c81b23700bb6b88bfd4 upstream.

Build regression: arm64 hugetlbpage.c undeclared identifier 'sz'
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

## Build log
arch/arm64/mm/hugetlbpage.c:386:28: error: use of undeclared identifier 'sz'
  386 |         ncontig = num_contig_ptes(sz, &pgsize);
      |                                   ^
1 error generated.


## Source
* Kernel version: 6.12.18-rc1
* Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* Git sha: 43639cc57b2273fce42874dd7f6e0b872f4984c5
* Git describe: v6.12.15-531-g43639cc57b22
* Project details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.15-531-g43639cc57b22

## Build
* Build log: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.15-531-g43639cc57b22/testrun/27516239/suite/build/test/clang-20-defconfig/log
* Build history:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.15-531-g43639cc57b22/testrun/27514393/suite/build/test/clang-20-defconfig/history/
* Build details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.15-531-g43639cc57b22/testrun/27516239/suite/build/test/clang-20-defconfig/
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2tuR9WQOit4WjRC1XVxLJKTcQia/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2tuR9WQOit4WjRC1XVxLJKTcQia/config

## Steps to reproduce
 - tuxmake --runtime podman --target-arch arm64 --toolchain clang-20
--kconfig defconfig LLVM=1 LLVM_IAS=1


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