Hi, The test outputs of those failures in seccomp_bpf as below: --- m3ulcb:/opt/kselftest/seccomp# ./seccomp_bpf 61 [ RUN ] global.syscall_restart seccomp_bpf.c:2754:global.syscall_restart:Expected 0x200 (512) == msg (256) global.syscall_restart: Test terminated by assertion [ FAIL ] global.syscall_restart m3ulcb:/opt/kselftest/seccomp# seccomp_bpf.c:2685:global.syscall_restart:Expected 0 (0) == nanosleep(&timeout, ((void *)0)) (-1) seccomp_bpf.c:2686:global.syscall_restart:Call to nanosleep() failed (errno 38) seccomp_bpf.c:2690:global.syscall_restart:Expected 1 (1) == read(pipefd[0], &buf, 1) (0) seccomp_bpf.c:2691:global.syscall_restart:Failed final read() from parent seccomp_bpf.c:2693:global.syscall_restart:Expected '!' (33) == buf (46) seccomp_bpf.c:2694:global.syscall_restart:Failed to get final data from read() m3ulcb:/opt/kselftest/seccomp# ./seccomp_bpf 53 [ RUN ] global.detect_seccomp_filter_flags seccomp_bpf.c:2104:global.detect_seccomp_filter_flags:Expected 14 (14) == (*__errno_location ()) (22) seccomp_bpf.c:2106:global.detect_seccomp_filter_flags:Failed to detect that a known-good filter flag (0x4) is supported! seccomp_bpf.c:2115:global.detect_seccomp_filter_flags:Expected 14 (14) == (*__errno_location ()) (22) seccomp_bpf.c:2117:global.detect_seccomp_filter_flags:Failed to detect that all known-good filter flags (0x7) are supported! global.detect_seccomp_filter_flags: Test failed at step #6 [ FAIL ] global.detect_seccomp_filter_flags m3ulcb:/opt/kselftest/seccomp# ./seccomp_bpf 64 [ RUN ] global.get_metadata seccomp_bpf.c:2914:global.get_metadata:Expected sizeof(md) (16) == ptrace(0x420d, pid, sizeof(md), &md) (-1) global.get_metadata: Test terminated by assertion [ FAIL ] global.get_metadata --- Although I am not so familiar with SECCOMP and BPF, I checked some related documents and codes. About the failures above, what the most confused me is that why it always give ENOSYS. Am I missing something? Thanks in advance. PS: I didn't run "make kselftest-merge" before compiling the kernel that I'm using. --- The Test Environment: - Kernel version: v4.14.0 The following configs were enabled. - CONFIG_HAVE_ARCH_SECCOMP_FILTER=y - CONFIG_SECCOMP_FILTER=y - CONFIG_SECCOMP=y Best regards Liu
