Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

[Naresh Kamboju]

On Mon, 23 Jun 2025 at 18:40, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.4.295 release.
> There are 222 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 Wed, 25 Jun 2025 13:05:50 +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-5.4.295-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-5.4.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Regressions on arm defconfig builds with gcc-12 and clang failed on
the Linux stable-rc 5.4.295-rc1.

Regressions found on arm
* arm, build
  - clang-20-axm55xx_defconfig
  - clang-20-defconfig
  - clang-20-lkftconfig
  - clang-20-lkftconfig-no-kselftest-frag
  - clang-nightly-axm55xx_defconfig
  - clang-nightly-defconfig
  - clang-nightly-lkftconfig
  - gcc-12-axm55xx_defconfig
  - gcc-12-defconfig
  - gcc-12-lkftconfig
  - gcc-12-lkftconfig-debug
  - gcc-12-lkftconfig-kasan
  - gcc-12-lkftconfig-kunit
  - gcc-12-lkftconfig-libgpiod
  - gcc-12-lkftconfig-no-kselftest-frag
  - gcc-12-lkftconfig-perf
  - gcc-12-lkftconfig-rcutorture
  - gcc-8-axm55xx_defconfig
  - gcc-8-defconfig

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

Build regression: stable-rc 5.4.295-rc1 arm kvm init.S Error selected
processor does not support `eret' in ARM mode

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


## Build errors
arch/arm/kvm/init.S: Assembler messages:
arch/arm/kvm/init.S:109: Error: selected processor does not support
`eret' in ARM mode
arch/arm/kvm/init.S:116: Error: Banked registers are not available
with this architecture. -- `msr ELR_hyp,r1'
arch/arm/kvm/init.S:145: Error: selected processor does not support
`eret' in ARM mode
arch/arm/kvm/init.S:149: Error: selected processor does not support
`eret' in ARM mode
make[2]: *** [scripts/Makefile.build:345: arch/arm/kvm/init.o] Error 1

and
/tmp/cc0RDxs9.s: Assembler messages:
/tmp/cc0RDxs9.s:45: Error: selected processor does not support `smc
#0' in ARM mode
/tmp/cc0RDxs9.s:94: Error: selected processor does not support `smc
#0' in ARM mode
/tmp/cc0RDxs9.s:160: Error: selected processor does not support `smc
#0' in ARM mode
/tmp/cc0RDxs9.s:296: Error: selected processor does not support `smc
#0' in ARM mode
make[3]: *** [/builds/linux/scripts/Makefile.build:262:
drivers/firmware/qcom_scm-32.o] Error 1


## Source
* Kernel version: 5.4.295-rc1
* Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* Git sha: 7ff2d32362e444f6459597db979cab7af498cdf3
* Git describe: v5.4.294-223-g7ff2d32362e4
* Project details:
https://regressions.linaro.org/lkft/linux-stable-rc-linux-5.4.y/v5.4.294-223-g7ff2d32362e4/
* Architectures: arm
* Toolchains: gcc-13
* Kconfigs: defconfig

## Build arm
* Build log: https://qa-reports.linaro.org/api/testruns/28837192/log_file/
* Build log 2: https://qa-reports.linaro.org/api/testruns/28841756/log_file/
* Build details:
https://regressions.linaro.org/lkft/linux-stable-rc-linux-5.4.y/v5.4.294-223-g7ff2d32362e4/build/gcc-12-axm55xx_defconfig/
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2yuYHH1epMqFqeFlNFUWiMeDjEz/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2yuYHH1epMqFqeFlNFUWiMeDjEz/config


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

Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

[Greg Kroah-Hartman]

On Tue, Jun 24, 2025 at 12:46:15AM +0530, Naresh Kamboju wrote:
> On Mon, 23 Jun 2025 at 18:40, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 5.4.295 release.
> > There are 222 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 Wed, 25 Jun 2025 13:05:50 +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-5.4.295-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-5.4.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
> 
> Regressions on arm defconfig builds with gcc-12 and clang failed on
> the Linux stable-rc 5.4.295-rc1.
> 
> Regressions found on arm
> * arm, build
>   - clang-20-axm55xx_defconfig
>   - clang-20-defconfig
>   - clang-20-lkftconfig
>   - clang-20-lkftconfig-no-kselftest-frag
>   - clang-nightly-axm55xx_defconfig
>   - clang-nightly-defconfig
>   - clang-nightly-lkftconfig
>   - gcc-12-axm55xx_defconfig
>   - gcc-12-defconfig
>   - gcc-12-lkftconfig
>   - gcc-12-lkftconfig-debug
>   - gcc-12-lkftconfig-kasan
>   - gcc-12-lkftconfig-kunit
>   - gcc-12-lkftconfig-libgpiod
>   - gcc-12-lkftconfig-no-kselftest-frag
>   - gcc-12-lkftconfig-perf
>   - gcc-12-lkftconfig-rcutorture
>   - gcc-8-axm55xx_defconfig
>   - gcc-8-defconfig
> 
> Regression Analysis:
>  - New regression? Yes
>  - Reproducibility? Yes
> 
> Build regression: stable-rc 5.4.295-rc1 arm kvm init.S Error selected
> processor does not support `eret' in ARM mode
> 
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> 
> 
> ## Build errors
> arch/arm/kvm/init.S: Assembler messages:
> arch/arm/kvm/init.S:109: Error: selected processor does not support
> `eret' in ARM mode
> arch/arm/kvm/init.S:116: Error: Banked registers are not available
> with this architecture. -- `msr ELR_hyp,r1'
> arch/arm/kvm/init.S:145: Error: selected processor does not support
> `eret' in ARM mode
> arch/arm/kvm/init.S:149: Error: selected processor does not support
> `eret' in ARM mode
> make[2]: *** [scripts/Makefile.build:345: arch/arm/kvm/init.o] Error 1
> 
> and
> /tmp/cc0RDxs9.s: Assembler messages:
> /tmp/cc0RDxs9.s:45: Error: selected processor does not support `smc
> #0' in ARM mode
> /tmp/cc0RDxs9.s:94: Error: selected processor does not support `smc
> #0' in ARM mode
> /tmp/cc0RDxs9.s:160: Error: selected processor does not support `smc
> #0' in ARM mode
> /tmp/cc0RDxs9.s:296: Error: selected processor does not support `smc
> #0' in ARM mode
> make[3]: *** [/builds/linux/scripts/Makefile.build:262:
> drivers/firmware/qcom_scm-32.o] Error 1

That's odd, both clang and gcc don't like this?  Any chance you can do
'git bisect' to track down the offending commit?

thanks,

greg k-h

Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

[Pavel Machek]

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Hi!

> > Build regression: stable-rc 5.4.295-rc1 arm kvm init.S Error selected
> > processor does not support `eret' in ARM mode
> > 
> > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> > 
> > 
> > ## Build errors
> > arch/arm/kvm/init.S: Assembler messages:
> > arch/arm/kvm/init.S:109: Error: selected processor does not support
> > `eret' in ARM mode
> > arch/arm/kvm/init.S:116: Error: Banked registers are not available
> > with this architecture. -- `msr ELR_hyp,r1'
> > arch/arm/kvm/init.S:145: Error: selected processor does not support
> > `eret' in ARM mode
> > arch/arm/kvm/init.S:149: Error: selected processor does not support
> > `eret' in ARM mode
> > make[2]: *** [scripts/Makefile.build:345: arch/arm/kvm/init.o] Error 1
> > 
> > and
> > /tmp/cc0RDxs9.s: Assembler messages:
> > /tmp/cc0RDxs9.s:45: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:94: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:160: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:296: Error: selected processor does not support `smc
> > #0' in ARM mode
> > make[3]: *** [/builds/linux/scripts/Makefile.build:262:
> > drivers/firmware/qcom_scm-32.o] Error 1
> 
> That's odd, both clang and gcc don't like this?  Any chance you can do
> 'git bisect' to track down the offending commit?

We see this one, too:



/tmp/ccJcop5R.s: Assembler messages:
2033
/tmp/ccJcop5R.s:45: Error: selected processor does not support `smc #0' in ARM mode
2034
/tmp/ccJcop5R.s:95: Error: selected processor does not support `smc #0' in ARM mode
2035
/tmp/ccJcop5R.s:162: Error: selected processor does not support `smc #0' in ARM mode
2036
/tmp/ccJcop5R.s:299: Error: selected processor does not support `smc #0' in ARM mode
2037
make[2]: *** [scripts/Makefile.build:262: drivers/firmware/qcom_scm-32.o] Error 1
2038
make[2]: *** Waiting for unfinished jobs....
2039

https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/jobs/10452069686

It is probably config-dependend.

https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/pipelines/1886959470

Best regards,
								Pavel
-- 
DENX Software Engineering GmbH,        Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

[Naresh Kamboju]

On Tue, 24 Jun 2025 at 15:55, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Tue, Jun 24, 2025 at 12:46:15AM +0530, Naresh Kamboju wrote:
> > On Mon, 23 Jun 2025 at 18:40, Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > This is the start of the stable review cycle for the 5.4.295 release.
> > > There are 222 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 Wed, 25 Jun 2025 13:05:50 +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-5.4.295-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-5.4.y
> > > and the diffstat can be found below.
> > >
> > > thanks,
> > >
> > > greg k-h
> >
> > Regressions on arm defconfig builds with gcc-12 and clang failed on
> > the Linux stable-rc 5.4.295-rc1.
> >
> > Regressions found on arm
> > * arm, build
> >   - clang-20-axm55xx_defconfig
> >   - clang-20-defconfig
> >   - clang-20-lkftconfig
> >   - clang-20-lkftconfig-no-kselftest-frag
> >   - clang-nightly-axm55xx_defconfig
> >   - clang-nightly-defconfig
> >   - clang-nightly-lkftconfig
> >   - gcc-12-axm55xx_defconfig
> >   - gcc-12-defconfig
> >   - gcc-12-lkftconfig
> >   - gcc-12-lkftconfig-debug
> >   - gcc-12-lkftconfig-kasan
> >   - gcc-12-lkftconfig-kunit
> >   - gcc-12-lkftconfig-libgpiod
> >   - gcc-12-lkftconfig-no-kselftest-frag
> >   - gcc-12-lkftconfig-perf
> >   - gcc-12-lkftconfig-rcutorture
> >   - gcc-8-axm55xx_defconfig
> >   - gcc-8-defconfig
> >
> > Regression Analysis:
> >  - New regression? Yes
> >  - Reproducibility? Yes
> >
> > Build regression: stable-rc 5.4.295-rc1 arm kvm init.S Error selected
> > processor does not support `eret' in ARM mode
> >
> > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> >
> >
> > ## Build errors
> > arch/arm/kvm/init.S: Assembler messages:
> > arch/arm/kvm/init.S:109: Error: selected processor does not support
> > `eret' in ARM mode
> > arch/arm/kvm/init.S:116: Error: Banked registers are not available
> > with this architecture. -- `msr ELR_hyp,r1'
> > arch/arm/kvm/init.S:145: Error: selected processor does not support
> > `eret' in ARM mode
> > arch/arm/kvm/init.S:149: Error: selected processor does not support
> > `eret' in ARM mode
> > make[2]: *** [scripts/Makefile.build:345: arch/arm/kvm/init.o] Error 1
> >
> > and
> > /tmp/cc0RDxs9.s: Assembler messages:
> > /tmp/cc0RDxs9.s:45: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:94: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:160: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:296: Error: selected processor does not support `smc
> > #0' in ARM mode
> > make[3]: *** [/builds/linux/scripts/Makefile.build:262:
> > drivers/firmware/qcom_scm-32.o] Error 1
>
> That's odd, both clang and gcc don't like this?  Any chance you can do
> 'git bisect' to track down the offending commit?

The git bisection pointing to,

  kbuild: Update assembler calls to use proper flags and language target
  commit d5c8d6e0fa61401a729e9eb6a9c7077b2d3aebb0 upstream.

- Naresh

>
> thanks,
>
> greg k-h

Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

[Greg Kroah-Hartman]

On Wed, Jun 25, 2025 at 10:03:22AM +0530, Naresh Kamboju wrote:
> On Tue, 24 Jun 2025 at 15:55, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > On Tue, Jun 24, 2025 at 12:46:15AM +0530, Naresh Kamboju wrote:
> > > On Mon, 23 Jun 2025 at 18:40, Greg Kroah-Hartman
> > > <gregkh@linuxfoundation.org> wrote:
> > > >
> > > > This is the start of the stable review cycle for the 5.4.295 release.
> > > > There are 222 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 Wed, 25 Jun 2025 13:05:50 +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-5.4.295-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-5.4.y
> > > > and the diffstat can be found below.
> > > >
> > > > thanks,
> > > >
> > > > greg k-h
> > >
> > > Regressions on arm defconfig builds with gcc-12 and clang failed on
> > > the Linux stable-rc 5.4.295-rc1.
> > >
> > > Regressions found on arm
> > > * arm, build
> > >   - clang-20-axm55xx_defconfig
> > >   - clang-20-defconfig
> > >   - clang-20-lkftconfig
> > >   - clang-20-lkftconfig-no-kselftest-frag
> > >   - clang-nightly-axm55xx_defconfig
> > >   - clang-nightly-defconfig
> > >   - clang-nightly-lkftconfig
> > >   - gcc-12-axm55xx_defconfig
> > >   - gcc-12-defconfig
> > >   - gcc-12-lkftconfig
> > >   - gcc-12-lkftconfig-debug
> > >   - gcc-12-lkftconfig-kasan
> > >   - gcc-12-lkftconfig-kunit
> > >   - gcc-12-lkftconfig-libgpiod
> > >   - gcc-12-lkftconfig-no-kselftest-frag
> > >   - gcc-12-lkftconfig-perf
> > >   - gcc-12-lkftconfig-rcutorture
> > >   - gcc-8-axm55xx_defconfig
> > >   - gcc-8-defconfig
> > >
> > > Regression Analysis:
> > >  - New regression? Yes
> > >  - Reproducibility? Yes
> > >
> > > Build regression: stable-rc 5.4.295-rc1 arm kvm init.S Error selected
> > > processor does not support `eret' in ARM mode
> > >
> > > Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> > >
> > >
> > > ## Build errors
> > > arch/arm/kvm/init.S: Assembler messages:
> > > arch/arm/kvm/init.S:109: Error: selected processor does not support
> > > `eret' in ARM mode
> > > arch/arm/kvm/init.S:116: Error: Banked registers are not available
> > > with this architecture. -- `msr ELR_hyp,r1'
> > > arch/arm/kvm/init.S:145: Error: selected processor does not support
> > > `eret' in ARM mode
> > > arch/arm/kvm/init.S:149: Error: selected processor does not support
> > > `eret' in ARM mode
> > > make[2]: *** [scripts/Makefile.build:345: arch/arm/kvm/init.o] Error 1
> > >
> > > and
> > > /tmp/cc0RDxs9.s: Assembler messages:
> > > /tmp/cc0RDxs9.s:45: Error: selected processor does not support `smc
> > > #0' in ARM mode
> > > /tmp/cc0RDxs9.s:94: Error: selected processor does not support `smc
> > > #0' in ARM mode
> > > /tmp/cc0RDxs9.s:160: Error: selected processor does not support `smc
> > > #0' in ARM mode
> > > /tmp/cc0RDxs9.s:296: Error: selected processor does not support `smc
> > > #0' in ARM mode
> > > make[3]: *** [/builds/linux/scripts/Makefile.build:262:
> > > drivers/firmware/qcom_scm-32.o] Error 1
> >
> > That's odd, both clang and gcc don't like this?  Any chance you can do
> > 'git bisect' to track down the offending commit?
> 
> The git bisection pointing to,
> 
>   kbuild: Update assembler calls to use proper flags and language target
>   commit d5c8d6e0fa61401a729e9eb6a9c7077b2d3aebb0 upstream.

Thanks for that,  I'll go drop all of the kbuild patches that Nathan
submitted here and push out a -rc2

greg k-h

Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

[Nathan Chancellor]

On Wed, Jun 25, 2025 at 09:52:27AM +0100, Greg Kroah-Hartman wrote:
> On Wed, Jun 25, 2025 at 10:03:22AM +0530, Naresh Kamboju wrote:
> > The git bisection pointing to,
> > 
> >   kbuild: Update assembler calls to use proper flags and language target
> >   commit d5c8d6e0fa61401a729e9eb6a9c7077b2d3aebb0 upstream.
> 
> Thanks for that,  I'll go drop all of the kbuild patches that Nathan
> submitted here and push out a -rc2

Thanks and sorry about the breakage. This is a bug that we missed when
d5c8d6e0fa61 was merged upstream because there were no uses of as-instr
for arch/arm at that point but there are in this tree so [1] needs to be
merged and backported with that series. I will resubmit when it lands.

[1]: https://lore.kernel.org/20250618-arm-expand-include-unified-h-path-v1-1-aef6eb4c44ca@kernel.org/

Cheers,
Nathan