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SubjectRe: [selftests/sgx] f0ff2447b8: kernel-selftests.sgx.make_fail
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Hi Oliver,

On 12/15/2021 7:32 AM, kernel test robot wrote:
>
>
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-9):
>
> commit: f0ff2447b8613b883f41ae845b6cc7540d6e5f71 ("selftests/sgx: Add a new kselftest: Unclobbered_vdso_oversubscribed")
> https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git x86/sgx
>
> in testcase: kernel-selftests
> version: kernel-selftests-x86_64-99d09ee9-1_20211206
> with following parameters:
>
> group: sgx
> ucode: 0xde
>
> 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: 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 <oliver.sang@intel.com>
>
> 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



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