Re: [PATCH 6.1 000/197] 6.1.79-rc1 review

[Daniel Díaz]

Hello!

On 20/02/24 7:04 p. m., Daniel Díaz wrote:
> On 20/02/24 2:49 p. m., Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 6.1.79 release.
> > There are 197 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 Thu, 22 Feb 2024 20:48:08 +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-6.1.79-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-6.1.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
>
> We see a regression with PowerPC:
>
> -----8<-----
>    /builds/linux/arch/powerpc/kernel/cpu_setup_6xx.S: Assembler messages:
>    /builds/linux/arch/powerpc/kernel/cpu_setup_6xx.S:124: Error: unrecognized opcode: `sym_func_start_local(setup_g2_le_hid2)'
>    /builds/linux/arch/powerpc/kernel/cpu_setup_6xx.S:131: Error: unrecognized opcode: `sym_func_end(setup_g2_le_hid2)'
>    make[4]: *** [/builds/linux/scripts/Makefile.build:382: arch/powerpc/kernel/cpu_setup_6xx.o] Error 1
> ----->8-----
>
> This is seen only on PowerPC with GCC 8, GCC 13, Clang 17, Clang nightly, on:
> * allnoconfig
> * tinyconfig
> * mpc83xx_defconfig
> * ppc6xx_defconfig
> (at least)
>
> Reproducer:
>
>    tuxmake \
>      --runtime podman \
>      --target-arch powerpc \
>      --toolchain gcc-8 \
>      --kconfig tinyconfig

Bisection points to:

  commit a65d7a833f486d0c162fdc854d2d5dd2e66ddd95
  Author: Matthias Schiffer <matthias.schiffer@xxxxxxxxxxxxxxx>
  Date:   Wed Jan 24 11:38:38 2024 +0100

      powerpc/6xx: set High BAT Enable flag on G2_LE cores
      
      [ Upstream commit a038a3ff8c6582404834852c043dadc73a5b68b4 ]


Reverting that commit makes the build pass again.

Greetings!

Daniel Díaz
daniel.diaz@xxxxxxxxxx