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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: 16 threads 1 sockets Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz with 32G 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 > > KERNEL SELFTESTS: linux_headers_dir is /usr/src/linux-headers-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71 > 2021-12-11 16:33:38 ln -sf /usr/bin/clang > 2021-12-11 16:33:38 ln -sf /usr/bin/llc > 2021-12-11 16:33:39 sed -i s/default_timeout=45/default_timeout=300/ kselftest/runner.sh > 2021-12-11 16:33:39 make -C sgx > make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx' > gcc -Wall -Werror -g -I../../../../tools/include -fPIC -z noexecstack -c main.c -o /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx/main.o > main.c: In function ‘get_total_epc_mem’: > main.c:275:3: error: implicit declaration of function ‘__cpuid’ [-Werror=implicit-function-declaration] > __cpuid(&eax, &ebx, &ecx, &edx); > ^~~~~~~ > cc1: all warnings being treated as errors > make: *** [Makefile:33: /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx/main.o] Error 1 > make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx' > 2021-12-11 16:33:39 make run_tests -C sgx > make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx' > gcc -Wall -Werror -g -I../../../../tools/include -fPIC -z noexecstack -c main.c -o /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx/main.o > main.c: In function ‘get_total_epc_mem’: > main.c:275:3: error: implicit declaration of function ‘__cpuid’ [-Werror=implicit-function-declaration] > __cpuid(&eax, &ebx, &ecx, &edx); > ^~~~~~~ > cc1: all warnings being treated as errors > make: *** [Makefile:33: /usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx/main.o] Error 1 > make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-8.3-kselftests-f0ff2447b8613b883f41ae845b6cc7540d6e5f71/tools/testing/selftests/sgx' > Thank you very much for the report. The fix has already been submitted: https://lore.kernel.org/linux-sgx/20211204202355.23005-1-jarkko@kernel.org/ Reinette