linux-kernel - [fs/binfmt_elf] 4736b95ed2: kernel-selftests.x86.make

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Message-ID: <20220129074137.GD27169@xsang-OptiPlex-9020>
Date:   Sat, 29 Jan 2022 15:41:37 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     0day robot <lkp@...el.com>,
        Ariadne Conill <ariadne@...eferenced.org>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Matthew Wilcox <willy@...radead.org>,
        Christian Brauner <brauner@...nel.org>,
        Rich Felker <dalias@...c.org>,
        Eric Biederman <ebiederm@...ssion.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        Kees Cook <keescook@...omium.org>,
        linux-fsdevel@...r.kernel.org, stable@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: [fs/binfmt_elf]  4736b95ed2: kernel-selftests.x86.make_fail



Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 4736b95ed241d76c59d34859cb77703cf587dcee ("[PATCH] fs/binfmt_elf: Add padding NULL when argc == 0")
url: https://github.com/0day-ci/linux/commits/Kees-Cook/fs-binfmt_elf-Add-padding-NULL-when-argc-0/20220127-015851
base: https://git.kernel.org/cgit/linux/kernel/git/kees/linux.git for-next/pstore
patch link: https://lore.kernel.org/linux-fsdevel/20220126175747.3270945-1-keescook@chromium.org

in testcase: kernel-selftests
version: kernel-selftests-x86_64-f050cde9-1_20220127
with following parameters:

	group: x86

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):




If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>


gcc -m32 -o /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-4736b95ed241d76c59d34859cb77703cf587dcee/tools/testing/selftests/x86/test_FCOMI_32 -O2 -g -std=gnu99 -p
thread -Wall -no-pie -DCAN_BUILD_32 test_FCOMI.c helpers.h -lrt -ldl -lm
/usr/bin/ld: bad -plugin-opt option
: error: ld returned 1 exit status
make: *** [Makefile:75: /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-4736b95ed241d76c59d34859cb77703cf587dcee/tools/testing/selftests/x86/test_FCOMI_32] Error 1


please be noted above failure detail is in attachments.

actually we also saw other types of make failure which all not observed upon
parent.

(1)
gcc -m32 -o /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-4736b95ed241d76c59d34859cb77703cf587dcee/tools/testing/selftests/x86/test_mremap_vdso_32 -O2 -g -std=gn
u99 -pthread -Wall -no-pie -DCAN_BUILD_32 -DCAN_BUILD_64 test_mremap_vdso.c helpers.h -lrt -ldl -lm
: error: : No such file or directory
: error: ^_: No such file or directory
: error: : No such file or directory
make: *** [Makefile:75: /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-4736b95ed241d76c59d34859cb77703cf587dcee/tools/testing/selftests/x86/test_mremap_vdso_32] E
rror 1

(2)
gcc -m32 -o /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-4736b95ed241d76c59d34859cb77703cf587dcee/tools/testing/selftests/x86/check_initial_reg_state_32 -O2 -g
-std=gnu99 -pthread -Wall -no-pie -Wl,-ereal_start -static -DCAN_BUILD_32 -DCAN_BUILD_64 check_initial_reg_state.c helpers.h -lrt -ldl -lm
: error: too many filenames given.  Type  --help for usage
: fatal error: ~W▒~▒^?: No such file or directory
compilation terminated.
make: *** [Makefile:75: /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-4736b95ed241d76c59d34859cb77703cf587dcee/tools/testing/selftests/x86/check_initial_reg_stat
e_32] Error 1




To reproduce:

        # build kernel
	cd linux
	cp config-5.16.0-rc1-00002-g4736b95ed241 .config
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang


View attachment "config-5.16.0-rc1-00002-g4736b95ed241" of type "text/plain" (177248 bytes)

View attachment "job-script" of type "text/plain" (5182 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (19148 bytes)

View attachment "kernel-selftests" of type "text/plain" (9827 bytes)