linux-kernel - Re: next-20251002: S390: gcc-8-defconfig: symbol `.modinfo' required but not present

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Message-ID: <20251006174740.13659A33-hca@linux.ibm.com>
Date: Mon, 6 Oct 2025 19:47:40 +0200
From: Heiko Carstens <hca@...ux.ibm.com>
To: Naresh Kamboju <naresh.kamboju@...aro.org>,
        Alexey Gladkov <legion@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>
Cc: linux-s390@...r.kernel.org, open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org,
        Linux Regressions <regressions@...ts.linux.dev>,
        Arnd Bergmann <arnd@...db.de>,
        Dan Carpenter <dan.carpenter@...aro.org>,
        Anders Roxell <anders.roxell@...aro.org>,
        Ben Copeland <benjamin.copeland@...aro.org>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>
Subject: Re: next-20251002: S390: gcc-8-defconfig: symbol `.modinfo' required
 but not present - no symbols

[full quote below, adding Alexey and Nathan]

On Mon, Oct 06, 2025 at 04:55:56PM +0530, Naresh Kamboju wrote:
> The S390 defconfig builds failed on the Linux next-20251002 tag build due
> to following build warnings / errors with gcc-8 toolchain.
> 
> * S390, build
>   - gcc-8-defconfig
> 
> First seen on next-20251002
> Good: next-20250929
> Bad: next-20251002..next-20251003
> 
> Regression Analysis:
> - New regression? yes
> - Reproducibility? yes
> 
> Test regression: next-20251002: S390: gcc-8-defconfig: symbol
> `.modinfo' required but not present - no symbols
> 
> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> 
> ### Build error log
> s390x-linux-gnu-ld: .tmp_vmlinux1: warning: allocated section
> `.got.plt' not in segment
> s390x-linux-gnu-ld: .tmp_vmlinux2: warning: allocated section
> `.got.plt' not in segment
> s390x-linux-gnu-ld: vmlinux.unstripped: warning: allocated section
> `.got.plt' not in segment
> s390x-linux-gnu-objcopy: vmlinux: warning: allocated section
> `.got.plt' not in segment
> s390x-linux-gnu-objcopy: stM7JmYX: warning: allocated section
> `.got.plt' not in segment
> s390x-linux-gnu-objcopy: stM7JmYX: symbol `.modinfo' required but not present
> s390x-linux-gnu-objcopy:stM7JmYX: no symbols
> make[3]: *** [scripts/Makefile.vmlinux:97: vmlinux] Error 1
> 
> 
> ## Source
> * Kernel version: 6.17.0
> * Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
> * Git commit: 47a8d4b89844f5974f634b4189a39d5ccbacd81c
> * Architectures: S390
> * Toolchains: gcc-8
> * Kconfigs: defconfig
> 
> ## Build
> * Build log: https://storage.tuxsuite.com/public/linaro/lkft/builds/33YUHdDpSLSMJfU4MFvRyEUQuDn/build.log
> * Build details:
> https://regressions.linaro.org/lkft/linux-next-master/next-20251003/build/gcc-8-defconfig/
> * Build plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/builds/33YUHdDpSLSMJfU4MFvRyEUQuDn
> * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/33YUHdDpSLSMJfU4MFvRyEUQuDn/
> * Kernel config:
> https://storage.tuxsuite.com/public/linaro/lkft/builds/33YUHdDpSLSMJfU4MFvRyEUQuDn/config
> 
> 
> ## Steps to reproduce
>   tuxmake --runtime podman --target-arch s390 --toolchain gcc-8
> --kconfig defconfig --kconfig-add CONFIG_DEBUG_INFO_BTF=n

Isn't the above exactly what is supposed to be addressed with commit
8d18ef04f940 ("s390: vmlinux.lds.S: Reorder sections")? Or did something
change with the commit? Didn't check, and might look into this tomorrow,
but adding Alexey and Nathan already now :)