On Tue, 16 Dec 2025 at 16:48, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 6.12.63 release.
> There are 354 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, 18 Dec 2025 11:12:22 +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-6.12.63-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


1.
I'm seeing the following build failures on s390 due to,

## Build errors:
arch/s390/include/asm/fpu-insn.h: In function 'fpu_vst':
arch/s390/include/asm/fpu-insn.h:381:36: error: 'size' undeclared (first use in this function); did you mean 'ksize'?
  381 |         kmsan_unpoison_memory(vxr, size);
      |                                    ^~~~
      |                                    ksize

The commit point to,
  s390/fpu: Fix false-positive kmsan report in fpu_vstl()
  [ Upstream commit 14e4e4175b64dd9216b522f6ece8af6997d063b2 ]

2.
The clang-21 allyesconfig builds failed on on arm, arm64, riscv and x86_64
as it was reported on the 6.18.2-rc1 and 6.17.13-rc2.

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

## Build
* kernel: 6.12.63-rc1
* git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* git commit: f8100cfd690d4b1fd45bdba30428b0eab2980dc0
* git describe: v6.12.60-537-gf8100cfd690d
* test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.60-537-gf8100cfd690d

## Test Regressions (compared to v6.12.60-182-g4112049d7836)
  
* s390, build
  - gcc-14-allmodconfig
  - gcc-14-allnoconfig
  - gcc-14-defconfig
  - gcc-14-lkftconfig-hardening
  - gcc-14-tinyconfig
  - gcc-8-allnoconfig
  - gcc-8-defconfig-fe40093d
  - gcc-8-lkftconfig-hardening
  - gcc-8-tinyconfig

* arm, arm64, riscv, x86_64, build
  - clang-21-allmodconfig
  - clang-21-allyesconfig

## Metric Regressions (compared to v6.12.60-182-g4112049d7836)

## Test Fixes (compared to v6.12.60-182-g4112049d7836)

## Metric Fixes (compared to v6.12.60-182-g4112049d7836)

## Test result summary
total: 84881, pass: 70888, fail: 3200, skip: 10584, xfail: 209

## Build Summary
* arc: 5 total, 5 passed, 0 failed
* arm: 139 total, 137 passed, 2 failed
* arm64: 57 total, 51 passed, 6 failed
* i386: 18 total, 18 passed, 0 failed
* mips: 34 total, 33 passed, 1 failed
* parisc: 4 total, 4 passed, 0 failed
* powerpc: 40 total, 39 passed, 1 failed
* riscv: 25 total, 24 passed, 1 failed
* s390: 22 total, 12 passed, 10 failed
* sh: 5 total, 5 passed, 0 failed
* sparc: 4 total, 3 passed, 1 failed
* x86_64: 49 total, 46 passed, 3 failed

## Test suites summary
* boot
* commands
* kselftest-arm64
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-exec
* kselftest-fpu
* kselftest-ftrace
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-kcmp
* kselftest-kvm
* kselftest-membarrier
* kselftest-memfd
* kselftest-mincore
* kselftest-mm
* kselftest-mqueue
* kselftest-net
* kselftest-net-mptcp
* kselftest-openat2
* kselftest-ptrace
* kselftest-rseq
* kselftest-rtc
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-tc-testing
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user_events
* kselftest-vDSO
* kselftest-x86
* kunit
* kvm-unit-tests
* lava
* libgpiod
* libhugetlbfs
* log-parser-boot
* log-parser-build-clang
* log-parser-build-gcc
* log-parser-test
* ltp-capability
* ltp-commands
* ltp-containers
* ltp-controllers
* ltp-cpuhotplug
* ltp-crypto
* ltp-cve
* ltp-dio
* ltp-fcntl-locktests
* ltp-fs
* ltp-fs_bind
* ltp-fs_perms_simple
* ltp-hugetlb
* ltp-math
* ltp-mm
* ltp-nptl
* ltp-pty
* ltp-sched
* ltp-smoke
* ltp-syscalls
* ltp-tracing
* perf
* rcutorture
* rt-tests-cyclicdeadline
* rt-tests-pi-stress
* rt-tests-pmqtest
* rt-tests-rt-migrate-test
* rt-tests-signaltest

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

On Wed, Dec 17, 2025 at 07:22:48PM +0530, Naresh Kamboju wrote:
> On Tue, 16 Dec 2025 at 16:48, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 6.12.63 release.
> > There are 354 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, 18 Dec 2025 11:12:22 +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-6.12.63-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
> 
> 
> 1.
> I'm seeing the following build failures on s390 due to,
> 
> ## Build errors:
> arch/s390/include/asm/fpu-insn.h: In function 'fpu_vst':
> arch/s390/include/asm/fpu-insn.h:381:36: error: 'size' undeclared (first use in this function); did you mean 'ksize'?
>   381 |         kmsan_unpoison_memory(vxr, size);
>       |                                    ^~~~
>       |                                    ksize
> 
> The commit point to,
>   s390/fpu: Fix false-positive kmsan report in fpu_vstl()
>   [ Upstream commit 14e4e4175b64dd9216b522f6ece8af6997d063b2 ]
> 

Thanks, will drop this one now.

greg k-h