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My child's pid is 2449 # # I am the child, my PID is 2449 # # [2448] clone3() with flags says: 0 expected 0 # ok 1 simple clone3() # # Running test 'clone3() in a new PID_NS' # # [2448] Trying clone3() with flags 0x20000000 (size 0) # # I am the parent (2448). My child's pid is 2450 # # I am the child, my PID is 1 # # [2448] clone3() with flags says: 0 expected 0 # ok 2 clone3() in a new PID_NS # # Running test 'CLONE_ARGS_SIZE_VER0' # # [2448] Trying clone3() with flags 0 (size 64) # # I am the parent (2448). My child's pid is 2451 # # I am the child, my PID is 2451 # # [2448] clone3() with flags says: 0 expected 0 # ok 3 CLONE_ARGS_SIZE_VER0 # # Running test 'CLONE_ARGS_SIZE_VER0 - 8' # # [2448] Trying clone3() with flags 0 (size 56) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -22 # ok 4 CLONE_ARGS_SIZE_VER0 - 8 # # Running test 'sizeof(struct clone_args) + 8' # # [2448] Trying clone3() with flags 0 (size 104) # # I am the parent (2448). My child's pid is 2452 # # I am the child, my PID is 2452 # # [2448] clone3() with flags says: 0 expected 0 # ok 5 sizeof(struct clone_args) + 8 # # Running test 'exit_signal with highest 32 bits non-zero' # # [2448] Trying clone3() with flags 0 (size 0) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -22 # ok 6 exit_signal with highest 32 bits non-zero # # Running test 'negative 32-bit exit_signal' # # [2448] Trying clone3() with flags 0 (size 0) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -22 # ok 7 negative 32-bit exit_signal # # Running test 'exit_signal not fitting into CSIGNAL mask' # # [2448] Trying clone3() with flags 0 (size 0) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -22 # ok 8 exit_signal not fitting into CSIGNAL mask # # Running test 'NSIG < exit_signal < CSIG' # # [2448] Trying clone3() with flags 0 (size 0) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -22 # ok 9 NSIG < exit_signal < CSIG # # Running test 'Arguments sizeof(struct clone_args) + 8' # # [2448] Trying clone3() with flags 0 (size 104) # # I am the parent (2448). My child's pid is 2453 # # I am the child, my PID is 2453 # # [2448] clone3() with flags says: 0 expected 0 # ok 10 Arguments sizeof(struct clone_args) + 8 # # Running test 'Arguments sizeof(struct clone_args) + 16' # # [2448] Trying clone3() with flags 0 (size 112) # # Argument list too long - Failed to create new process # # [2448] clone3() with flags says: -7 expected -7 # ok 11 Arguments sizeof(struct clone_args) + 16 # # Running test 'Arguments sizeof(struct clone_arg) * 2' # # [2448] Trying clone3() with flags 0 (size 112) # # Argument list too long - Failed to create new process # # [2448] clone3() with flags says: -7 expected -7 # ok 12 Arguments sizeof(struct clone_arg) * 2 # # Running test 'Arguments > page size' # # [2448] Trying clone3() with flags 0 (size 4104) # # Argument list too long - Failed to create new process # # [2448] clone3() with flags says: -7 expected -7 # ok 13 Arguments > page size # # Running test 'CLONE_ARGS_SIZE_VER0 in a new PID NS' # # [2448] Trying clone3() with flags 0x20000000 (size 64) # # I am the parent (2448). My child's pid is 2454 # # I am the child, my PID is 1 # # [2448] clone3() with flags says: 0 expected 0 # ok 14 CLONE_ARGS_SIZE_VER0 in a new PID NS # # Running test 'CLONE_ARGS_SIZE_VER0 - 8 in a new PID NS' # # [2448] Trying clone3() with flags 0x20000000 (size 56) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -22 # ok 15 CLONE_ARGS_SIZE_VER0 - 8 in a new PID NS # # Running test 'sizeof(struct clone_args) + 8 in a new PID NS' # # [2448] Trying clone3() with flags 0x20000000 (size 104) # # I am the parent (2448). My child's pid is 2455 # # I am the child, my PID is 1 # # [2448] clone3() with flags says: 0 expected 0 # ok 16 sizeof(struct clone_args) + 8 in a new PID NS # # Running test 'Arguments > page size in a new PID NS' # # [2448] Trying clone3() with flags 0x20000000 (size 4104) # # Argument list too long - Failed to create new process # # [2448] clone3() with flags says: -7 expected -7 # ok 17 Arguments > page size in a new PID NS # # Running test 'New time NS' # # [2448] Trying clone3() with flags 0x80 (size 0) # # I am the parent (2448). My child's pid is 2456 # # I am the child, my PID is 2456 # # [2448] clone3() with flags says: 0 expected 0 # ok 18 New time NS # # Running test 'exit signal (SIGCHLD) in flags' # # [2448] Trying clone3() with flags 0x11 (size 0) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -22 # ok 19 exit signal (SIGCHLD) in flags # # Shadow stack not supported # ok 20 # SKIP Shadow stack on system with shadow stack # # Shadow stack not supported # ok 21 # SKIP Shadow stack with misaligned address # # Shadow stack not supported # ok 22 # SKIP Shadow stack with normal memory # # Shadow stack not supported # ok 23 # SKIP Shadow stack with no token # # Running test 'Shadow stack on system without shadow stack' # # [2448] Trying clone3() with flags 0x100 (size 0) # # Invalid argument - Failed to create new process # # [2448] clone3() with flags says: -22 expected -14 # # [2448] Result (-22) is different than expected (-14) # not ok 24 Shadow stack on system without shadow stack # # 4 skipped test(s) detected. Consider enabling relevant config options to improve coverage. # # Totals: pass:19 fail:1 xfail:0 xpass:0 skip:4 error:0 not ok 1 selftests: clone3: clone3 # exit=1 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250930/202509301454.adc93851-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki