linux-kernel - Re: [PATCH 5.12 000/242] 5.12.18-rc1 review

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Date:   Thu, 15 Jul 2021 16:49:16 -0500
From:   Daniel Díaz <daniel.diaz@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     open list <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Shuah Khan <shuah@...nel.org>, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, Pavel Machek <pavel@...x.de>,
        jonathanh@...dia.com, f.fainelli@...il.com,
        linux- stable <stable@...r.kernel.org>, svens@...ux.ibm.com
Subject: Re: [PATCH 5.12 000/242] 5.12.18-rc1 review

Hello!

On Thu, 15 Jul 2021 at 13:56, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> This is the start of the stable review cycle for the 5.12.18 release.
> There are 242 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, 17 Jul 2021 18:21:07 +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/v5.x/stable-review/patch-5.12.18-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-5.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Build regressions have been found on this release candidate (and on 5.13-rc).

## Regressions (compared to v5.12.17)
* s390, build
  - clang-10-allnoconfig
  - clang-10-defconfig
  - clang-10-tinyconfig
  - clang-11-allnoconfig
  - clang-11-defconfig
  - clang-11-tinyconfig
  - clang-12-allnoconfig
  - clang-12-defconfig
  - clang-12-tinyconfig
  - gcc-8-allnoconfig
  - gcc-8-defconfig
  - gcc-8-tinyconfig
  - gcc-9-allnoconfig
  - gcc-9-defconfig
  - gcc-9-tinyconfig
  - gcc-10-allnoconfig
  - gcc-10-defconfig
  - gcc-10-tinyconfig

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

[...]
> Sven Schnelle <svens@...ux.ibm.com>
>     s390/signal: switch to using vdso for sigreturn and syscall restart
[...]

Our bisections pointed to this commit. Reverting it made the build pass again.

Greetings!

Daniel Díaz
daniel.diaz@...aro.org