Re: [KVM] 2ee567d31a: kernel_selftests.kvm.make_fail

[Christian Borntraeger]

On 03.06.19 04:31, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-7):
> 
> commit: 2ee567d31a5812cf93c0ec943b142de252ce1cff ("KVM: selftests: enable pgste option for the linker on s390")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
> 
> in testcase: kernel_selftests
> with following parameters:
> 
> 	group: kselftests-01
> 
> 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: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 8G memory
> 
> 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 <rong.a.chen@xxxxxxxxx>

I fixed up the offending commit.
 
> 
> 2019-05-31 18:25:21 make run_tests -C kvm
> make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm'
> make --no-builtin-rules ARCH=x86 -C ../../../.. headers_install
> make[1]: Entering directory '/usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff'
> make[1]: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff'
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I..   -c lib/assert.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/assert.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I..   -c lib/elf.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/elf.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I..   -c lib/io.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/io.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I..   -c lib/kvm_util.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/kvm_util.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I..   -c lib/ucall.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/ucall.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I..   -c lib/sparsebit.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/sparsebit.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib/x86_64 -Iinclude/x86_64 -I..   -c lib/x86_64/processor.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/x86_64/processor.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ilib/x86_64 -Iinclude/x86_64 -I..   -c lib/x86_64/vmx.c -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/x86_64/vmx.o
> ar crs /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/libkvm.a /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/assert.o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/elf.o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/io.o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/kvm_util.o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/ucall.o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/sparsebit.o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/x86_64/processor.o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/lib/x86_64/vmx.o
> gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../usr/include/ -Iinclude -Ix86_64 -Iinclude/x86_64 -I..  -pthread  -no-pie -Wl,--s390-pgste  x86_64/platform_info_test.c /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/libkvm.a  -o /usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/x86_64/platform_info_test
> /usr/bin/ld: unrecognized option '--s390-pgste'
> /usr/bin/ld: use the --help option for usage information
> collect2: error: ld returned 1 exit status
> ../lib.mk:138: recipe for target '/usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/x86_64/platform_info_test' failed
> make: *** [/usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm/x86_64/platform_info_test] Error 1
> make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-7.6-2ee567d31a5812cf93c0ec943b142de252ce1cff/tools/testing/selftests/kvm'
> 
> 
> To reproduce:
> 
>         git clone https://github.com/intel/lkp-tests.git
>         cd lkp-tests
>         bin/lkp install job.yaml  # job file is attached in this email
>         bin/lkp run     job.yaml
> 
> 
> Thanks,
> Rong Chen
>