./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2234284950 <...> Warning: Permanently added '10.128.1.10' (ED25519) to the list of known hosts. execve("./syz-executor2234284950", ["./syz-executor2234284950"], 0x7ffdb0216560 /* 10 vars */) = 0 brk(NULL) = 0x555582d82000 brk(0x555582d82d00) = 0x555582d82d00 arch_prctl(ARCH_SET_FS, 0x555582d82380) = 0 set_tid_address(0x555582d82650) = 5231 set_robust_list(0x555582d82660, 24) = 0 rseq(0x555582d82ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2234284950", 4096) = 28 getrandom("\xbf\x1c\x5f\xde\x13\xc5\xac\x97", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555582d82d00 brk(0x555582da3d00) = 0x555582da3d00 brk(0x555582da4000) = 0x555582da4000 mprotect(0x7f1b4c27c000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555582d82650) = 5232 ./strace-static-x86_64: Process 5232 attached [pid 5231] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] set_robust_list(0x555582d82660, 24) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5233 attached [pid 5231] <... clone resumed>, child_tidptr=0x555582d82650) = 5233 [pid 5233] set_robust_list(0x555582d82660, 24 [pid 5231] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5235 attached ./strace-static-x86_64: Process 5234 attached [pid 5235] set_robust_list(0x555582d82660, 24 [pid 5234] set_robust_list(0x555582d82660, 24 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5234 [pid 5231] <... clone resumed>, child_tidptr=0x555582d82650) = 5235 [pid 5235] <... set_robust_list resumed>) = 0 [pid 5234] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5236 attached [pid 5231] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5236] set_robust_list(0x555582d82660, 24 [pid 5234] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5237 attached [pid 5236] <... set_robust_list resumed>) = 0 [pid 5234] setpgid(0, 0 [pid 5231] <... clone resumed>, child_tidptr=0x555582d82650) = 5238 ./strace-static-x86_64: Process 5238 attached [pid 5237] set_robust_list(0x555582d82660, 24 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5237 [pid 5234] <... setpgid resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5236 [pid 5231] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] set_robust_list(0x555582d82660, 24 [pid 5237] <... set_robust_list resumed>) = 0 [pid 5238] <... set_robust_list resumed>) = 0 [pid 5236] <... prctl resumed>) = 0 [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5239 attached [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5237] <... prctl resumed>) = 0 [pid 5236] setpgid(0, 0 [pid 5231] <... clone resumed>, child_tidptr=0x555582d82650) = 5239 [pid 5237] setpgid(0, 0 [pid 5236] <... setpgid resumed>) = 0 [pid 5234] <... openat resumed>) = 3 [pid 5239] set_robust_list(0x555582d82660, 24 [pid 5237] <... setpgid resumed>) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5240 attached [pid 5239] <... set_robust_list resumed>) = 0 [pid 5234] write(3, "1000", 4 [pid 5240] set_robust_list(0x555582d82660, 24 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5236] <... openat resumed>) = 3 [pid 5234] <... write resumed>) = 4 [pid 5240] <... set_robust_list resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5240 [pid 5236] write(3, "1000", 4 [pid 5234] close(3) = 0 [pid 5236] <... write resumed>) = 4 executing program [pid 5234] write(1, "executing program\n", 18./strace-static-x86_64: Process 5241 attached [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5237] <... openat resumed>) = 3 [pid 5236] close(3 [pid 5234] <... write resumed>) = 18 [pid 5240] <... prctl resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5241 [pid 5237] write(3, "1000", 4 [pid 5240] setpgid(0, 0 [pid 5237] <... write resumed>) = 4 [pid 5241] set_robust_list(0x555582d82660, 24 [pid 5240] <... setpgid resumed>) = 0 [pid 5237] close(3 [pid 5236] <... close resumed>) = 0 [pid 5234] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5241] <... set_robust_list resumed>) = 0 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5237] <... close resumed>) = 0 executing program executing program [pid 5236] write(1, "executing program\n", 18 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5237] write(1, "executing program\n", 18 [pid 5236] <... write resumed>) = 18 [pid 5241] <... prctl resumed>) = 0 [pid 5237] <... write resumed>) = 18 [pid 5234] <... bpf resumed>) = 3 [pid 5241] setpgid(0, 0 [pid 5240] <... openat resumed>) = 3 [pid 5237] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5241] <... setpgid resumed>) = 0 [pid 5240] write(3, "1000", 4 [pid 5234] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5240] <... write resumed>) = 4 [pid 5237] <... bpf resumed>) = 3 [pid 5236] <... bpf resumed>) = 3 [pid 5234] <... bpf resumed>) = 4 [pid 5236] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5240] close(3 [pid 5241] <... openat resumed>) = 3 [pid 5237] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5240] <... close resumed>) = 0 executing program [pid 5234] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5241] write(3, "1000", 4 [pid 5240] write(1, "executing program\n", 18 [pid 5241] <... write resumed>) = 4 [pid 5240] <... write resumed>) = 18 [pid 5237] <... bpf resumed>) = 4 [pid 5241] close(3 [pid 5240] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... bpf resumed>) = 4 [pid 5234] <... bpf resumed>) = 5 [pid 5241] <... close resumed>) = 0 [pid 5237] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5241] write(1, "executing program\n", 18executing program [pid 5237] <... bpf resumed>) = 5 [pid 5236] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5234] perf_event_open( [pid 5241] <... write resumed>) = 18 [pid 5240] <... bpf resumed>) = 3 [pid 5237] perf_event_open( [pid 5236] <... bpf resumed>) = 5 [pid 5241] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5240] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5237] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5236] perf_event_open( [pid 5234] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5234] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5241] <... bpf resumed>) = 3 [pid 5240] <... bpf resumed>) = 4 [pid 5237] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5241] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5240] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5237] <... bpf resumed>) = 7 [pid 5234] <... bpf resumed>) = 7 [pid 5241] <... bpf resumed>) = 4 [pid 5240] <... bpf resumed>) = 5 [pid 5236] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5234] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5241] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5240] perf_event_open( [pid 5237] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5236] <... bpf resumed>) = 7 [pid 5241] <... bpf resumed>) = 5 [pid 5240] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5234] <... bpf resumed>) = 8 [pid 5241] perf_event_open( [pid 5237] <... bpf resumed>) = 8 [pid 5236] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5241] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5240] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5237] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5234] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5241] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5236] <... bpf resumed>) = 8 [pid 5234] <... ioctl resumed>) = 0 [pid 5240] <... bpf resumed>) = 7 [pid 5237] <... ioctl resumed>) = 0 [pid 5241] <... bpf resumed>) = 7 [pid 5240] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5236] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5234] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5237] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5241] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5236] <... ioctl resumed>) = 0 [pid 5236] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5240] <... bpf resumed>) = 8 [pid 5234] <... bpf resumed>) = 9 [pid 5240] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5237] <... bpf resumed>) = 9 [pid 5237] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5236] <... bpf resumed>) = 9 [pid 5241] <... bpf resumed>) = 8 [pid 5240] <... ioctl resumed>) = 0 [pid 5237] <... bpf resumed>) = 10 [pid 5234] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5241] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5240] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5236] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5241] <... ioctl resumed>) = 0 [pid 5237] exit_group(0 [pid 5234] <... bpf resumed>) = 10 [pid 5237] <... exit_group resumed>) = ? [pid 5236] <... bpf resumed>) = 10 [pid 5241] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5240] <... bpf resumed>) = 9 [pid 5236] exit_group(0 [pid 5234] exit_group(0 [pid 5241] <... bpf resumed>) = 9 [pid 5240] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5237] +++ exited with 0 +++ [pid 5236] <... exit_group resumed>) = ? [pid 5234] <... exit_group resumed>) = ? [pid 5241] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5240] <... bpf resumed>) = 10 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5241] <... bpf resumed>) = 10 [pid 5240] exit_group(0 [pid 5241] exit_group(0 [pid 5240] <... exit_group resumed>) = ? [pid 5241] <... exit_group resumed>) = ? syzkaller login: [ 67.623556][ T5240] [ 67.625941][ T5240] ============================================ [ 67.632092][ T5240] WARNING: possible recursive locking detected [ 67.638422][ T5240] 6.12.0-rc1-syzkaller-00194-g1f7c33630724 #0 Not tainted [ 67.645548][ T5240] -------------------------------------------- [ 67.651705][ T5240] syz-executor223/5240 is trying to acquire lock: [ 67.658133][ T5240] ffffc900038690d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1ea/0x600 [ 67.667766][ T5240] [ 67.667766][ T5240] but task is already holding lock: [ 67.675145][ T5240] ffffc900035090d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1ea/0x600 [ 67.684839][ T5240] [ 67.684839][ T5240] other info that might help us debug this: [ 67.692958][ T5240] Possible unsafe locking scenario: [ 67.692958][ T5240] [ 67.700434][ T5240] CPU0 [ 67.703715][ T5240] ---- [ 67.706990][ T5240] lock(&rb->spinlock); [ 67.711239][ T5240] lock(&rb->spinlock); [ 67.716002][ T5240] [ 67.716002][ T5240] *** DEADLOCK *** [ 67.716002][ T5240] [ 67.724336][ T5240] May be due to missing lock nesting notation [ 67.724336][ T5240] [ 67.732739][ T5240] 4 locks held by syz-executor223/5240: [ 67.738279][ T5240] #0: ffffffff8e9a2ea8 (bpf_event_mutex){+.+.}-{3:3}, at: perf_event_detach_bpf_prog+0xa4/0x350 [ 67.748850][ T5240] #1: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 67.758282][ T5240] #2: ffffc900035090d8 (&rb->spinlock){-.-.}-{2:2}, at: __bpf_ringbuf_reserve+0x1ea/0x600 [ 67.768852][ T5240] #3: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: trace_call_bpf+0xbc/0x8a0 [ 67.778305][ T5240] [ 67.778305][ T5240] stack backtrace: [ 67.784215][ T5240] CPU: 0 UID: 0 PID: 5240 Comm: syz-executor223 Not tainted 6.12.0-rc1-syzkaller-00194-g1f7c33630724 #0 [ 67.795360][ T5240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 67.805538][ T5240] Call Trace: [ 67.808825][ T5240] [ 67.811759][ T5240] dump_stack_lvl+0x241/0x360 [ 67.816452][ T5240] ? __pfx_dump_stack_lvl+0x10/0x10 [ 67.821649][ T5240] ? __pfx__printk+0x10/0x10 [ 67.826259][ T5240] ? lockdep_unlock+0x16a/0x300 [ 67.831122][ T5240] print_deadlock_bug+0x483/0x620 [ 67.836156][ T5240] ? do_raw_spin_unlock+0x13c/0x8b0 [ 67.841457][ T5240] validate_chain+0x15e2/0x5920 [ 67.846316][ T5240] ? __bfs+0x368/0x6f0 [ 67.850385][ T5240] ? perf_swevent_get_recursion_context+0xa9/0x100 [ 67.856928][ T5240] ? perf_trace_buf_alloc+0x12e/0x2f0 [ 67.862328][ T5240] ? __pfx_validate_chain+0x10/0x10 [ 67.867544][ T5240] ? mark_lock+0x9a/0x360 [ 67.871897][ T5240] ? __lock_acquire+0x1384/0x2050 [ 67.877109][ T5240] ? validate_chain+0x11e/0x5920 [ 67.882092][ T5240] ? perf_swevent_get_recursion_context+0xa9/0x100 [ 67.888627][ T5240] ? perf_trace_buf_alloc+0x12e/0x2f0 [ 67.894107][ T5240] ? perf_swevent_get_recursion_context+0xa9/0x100 [ 67.901072][ T5240] ? perf_trace_buf_alloc+0x12e/0x2f0 [ 67.906462][ T5240] ? mark_lock+0x9a/0x360 [ 67.910815][ T5240] __lock_acquire+0x1384/0x2050 [ 67.915689][ T5240] lock_acquire+0x1ed/0x550 [ 67.920200][ T5240] ? __bpf_ringbuf_reserve+0x1ea/0x600 [ 67.925669][ T5240] ? __pfx_lock_acquire+0x10/0x10 [ 67.930700][ T5240] ? perf_swevent_get_recursion_context+0xa9/0x100 [ 67.937225][ T5240] ? perf_trace_buf_alloc+0x12e/0x2f0 [ 67.942606][ T5240] ? mark_lock+0x9a/0x360 [ 67.946964][ T5240] _raw_spin_lock_irqsave+0xd5/0x120 [ 67.952260][ T5240] ? __bpf_ringbuf_reserve+0x1ea/0x600 [ 67.957724][ T5240] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 67.963629][ T5240] __bpf_ringbuf_reserve+0x1ea/0x600 [ 67.969032][ T5240] ? mark_lock+0x9a/0x360 [ 67.973374][ T5240] ? __pfx___bpf_ringbuf_reserve+0x10/0x10 [ 67.979202][ T5240] ? __pfx___cant_migrate+0x10/0x10 [ 67.984433][ T5240] bpf_ringbuf_output+0x67/0x1e0 [ 67.989403][ T5240] bpf_prog_4aaef4562453526c+0x43/0x47 [ 67.994867][ T5240] trace_call_bpf+0x369/0x8a0 [ 67.999555][ T5240] ? trace_call_bpf+0xbc/0x8a0 [ 68.004326][ T5240] ? __pfx_trace_call_bpf+0x10/0x10 [ 68.009536][ T5240] perf_trace_run_bpf_submit+0x82/0x180 [ 68.015100][ T5240] perf_trace_lock_acquire+0x3c3/0x4f0 [ 68.020566][ T5240] ? __pfx_perf_trace_lock_acquire+0x10/0x10 [ 68.026547][ T5240] ? validate_chain+0x11e/0x5920 [ 68.031491][ T5240] ? __pfx___bpf_ringbuf_reserve+0x10/0x10 [ 68.037335][ T5240] lock_acquire+0x51b/0x550 [ 68.041956][ T5240] ? bpf_trace_run2+0x1fc/0x540 [ 68.046815][ T5240] ? __pfx_lock_acquire+0x10/0x10 [ 68.051864][ T5240] ? __pfx_validate_chain+0x10/0x10 [ 68.057070][ T5240] ? __pfx___cant_sleep+0x10/0x10 [ 68.062139][ T5240] ? trace_call_bpf+0x613/0x8a0 [ 68.067071][ T5240] ? trace_call_bpf+0xbc/0x8a0 [ 68.071859][ T5240] ? bpf_trace_run2+0x1fc/0x540 [ 68.076708][ T5240] bpf_trace_run2+0x219/0x540 [ 68.081473][ T5240] ? bpf_trace_run2+0x1fc/0x540 [ 68.086328][ T5240] ? __pfx_bpf_trace_run2+0x10/0x10 [ 68.091525][ T5240] ? perf_trace_run_bpf_submit+0x112/0x180 [ 68.097338][ T5240] trace_contention_end+0x114/0x140 [ 68.102561][ T5240] __pv_queued_spin_lock_slowpath+0xb7e/0xdb0 [ 68.108637][ T5240] ? __pfx___pv_queued_spin_lock_slowpath+0x10/0x10 [ 68.115235][ T5240] queued_spin_lock_slowpath+0x42/0x50 [ 68.120718][ T5240] do_raw_spin_lock+0x272/0x370 [ 68.125611][ T5240] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 68.130997][ T5240] _raw_spin_lock_irqsave+0xe1/0x120 [ 68.136288][ T5240] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 68.142195][ T5240] __bpf_ringbuf_reserve+0x1ea/0x600 [ 68.147487][ T5240] ? __pfx_lock_acquire+0x10/0x10 [ 68.152519][ T5240] ? __pfx___bpf_ringbuf_reserve+0x10/0x10 [ 68.158332][ T5240] ? __pfx___cant_migrate+0x10/0x10 [ 68.163556][ T5240] bpf_ringbuf_reserve+0x5c/0x70 [ 68.168499][ T5240] ? bpf_trace_run2+0x1fc/0x540 [ 68.173356][ T5240] bpf_prog_f42551b0fba4abb2+0x2e/0x48 [ 68.178816][ T5240] ? bpf_trace_run2+0x1fc/0x540 [ 68.183669][ T5240] bpf_trace_run2+0x2ec/0x540 [ 68.188401][ T5240] ? __pfx_bpf_trace_run2+0x10/0x10 [ 68.193623][ T5240] ? __bpf_prog_put_noref+0x145/0x310 [ 68.199013][ T5240] ? lockdep_hardirqs_on+0x99/0x150 [ 68.204232][ T5240] ? __local_bh_enable_ip+0x168/0x200 [ 68.209615][ T5240] ? __bpf_prog_put_noref+0x145/0x310 [ 68.214991][ T5240] ? __bpf_prog_put_noref+0x145/0x310 [ 68.220366][ T5240] __traceiter_kfree+0x2b/0x50 [ 68.225139][ T5240] ? __bpf_prog_put_noref+0x145/0x310 [ 68.230513][ T5240] kfree+0x35e/0x440 [ 68.234417][ T5240] __bpf_prog_put_noref+0x145/0x310 [ 68.239620][ T5240] bpf_prog_put_deferred+0x2f3/0x3e0 [ 68.244909][ T5240] ? __pfx_bpf_prog_put_deferred+0x10/0x10 [ 68.250716][ T5240] ? call_rcu_tasks_generic+0x64c/0x970 [ 68.256268][ T5240] ? __pfx___bpf_prog_array_free_sleepable_cb+0x10/0x10 [ 68.263227][ T5240] bpf_prog_put+0x264/0x2a0 [ 68.267732][ T5240] ? __pfx_bpf_prog_put+0x10/0x10 [ 68.272758][ T5240] ? bpf_prog_array_copy+0x2bf/0x380 [ 68.278064][ T5240] perf_event_detach_bpf_prog+0x2ad/0x350 [ 68.283800][ T5240] ? __pfx_perf_event_detach_bpf_prog+0x10/0x10 [ 68.290062][ T5240] _free_event+0xb04/0xf60 [ 68.294494][ T5240] perf_event_release_kernel+0x7c1/0x850 [ 68.300130][ T5240] ? __pfx___might_resched+0x10/0x10 [ 68.305423][ T5240] ? __pfx_perf_event_release_kernel+0x10/0x10 [ 68.311594][ T5240] ? __pfx_call_rcu+0x10/0x10 [ 68.316287][ T5240] perf_release+0x38/0x40 [ 68.320631][ T5240] ? __pfx_perf_release+0x10/0x10 [ 68.325666][ T5240] __fput+0x23f/0x880 [ 68.329661][ T5240] task_work_run+0x24f/0x310 [ 68.334258][ T5240] ? __pfx_task_work_run+0x10/0x10 [ 68.339374][ T5240] ? switch_task_namespaces+0xe4/0x110 [ 68.344837][ T5240] do_exit+0xa2f/0x28e0 [ 68.348995][ T5240] ? __pfx_do_exit+0x10/0x10 [ 68.353583][ T5240] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 68.359571][ T5240] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.365910][ T5240] ? _raw_spin_unlock_irq+0x23/0x50 [ 68.371118][ T5240] ? lockdep_hardirqs_on+0x99/0x150 [ 68.376350][ T5240] do_group_exit+0x207/0x2c0 [ 68.380945][ T5240] __x64_sys_exit_group+0x3f/0x40 [ 68.385988][ T5240] x64_sys_call+0x2634/0x2640 [ 68.390669][ T5240] do_syscall_64+0xf3/0x230 [ 68.395175][ T5240] ? clear_bhb_loop+0x35/0x90 [ 68.399854][ T5240] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.405760][ T5240] RIP: 0033:0x7f1b4c2076f9 [ 68.410206][ T5240] Code: Unable to access opcode bytes at 0x7f1b4c2076cf. [ 68.417216][ T5240] RSP: 002b:00007ffd7a884258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [pid 5236] +++ exited with 0 +++ [pid 5234] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5242 attached [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5242 [pid 5242] set_robust_list(0x555582d82660, 24./strace-static-x86_64: Process 5243 attached ) = 0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5243 [pid 5243] set_robust_list(0x555582d82660, 24 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5240] +++ exited with 0 +++ [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5243] <... set_robust_list resumed>) = 0 [pid 5242] <... prctl resumed>) = 0 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5242] setpgid(0, 0./strace-static-x86_64: Process 5244 attached [pid 5243] <... prctl resumed>) = 0 [pid 5244] set_robust_list(0x555582d82660, 24 [pid 5243] setpgid(0, 0 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5244 [pid 5244] <... set_robust_list resumed>) = 0 [pid 5243] <... setpgid resumed>) = 0 [pid 5244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5242] <... setpgid resumed>) = 0 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5244] <... prctl resumed>) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5245 attached [pid 5244] setpgid(0, 0 [pid 5242] <... openat resumed>) = 3 [pid 5244] <... setpgid resumed>) = 0 [pid 5242] write(3, "1000", 4 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5245 [pid 5242] <... write resumed>) = 4 [pid 5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5243] <... openat resumed>) = 3 [pid 5242] close(3 [pid 5245] set_robust_list(0x555582d82660, 24 [pid 5242] <... close resumed>) = 0 [pid 5242] write(1, "executing program\n", 18executing program [ 68.425634][ T5240] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1b4c2076f9 [ 68.433627][ T5240] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 68.441621][ T5240] RBP: 00007f1b4c2822d0 R08: ffffffffffffffb8 R09: 00000000000000a0 [ 68.449600][ T5240] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1b4c2822d0 [ 68.457569][ T5240] R13: 0000000000000000 R14: 00007f1b4c282d40 R15: 00007f1b4c1d88a0 [ 68.465574][ T5240] ) = 18 [pid 5245] <... set_robust_list resumed>) = 0 [pid 5244] <... openat resumed>) = 3 [pid 5243] write(3, "1000", 4 [pid 5242] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5244] write(3, "1000", 4 [pid 5243] <... write resumed>) = 4 [pid 5245] <... prctl resumed>) = 0 [pid 5244] <... write resumed>) = 4 [pid 5243] close(3 [pid 5245] setpgid(0, 0 [pid 5244] close(3 [pid 5245] <... setpgid resumed>) = 0 [pid 5244] <... close resumed>) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5244] write(1, "executing program\n", 18 [pid 5243] <... close resumed>) = 0 [pid 5242] <... bpf resumed>) = 3 [pid 5244] <... write resumed>) = 18 executing program [pid 5245] <... openat resumed>) = 3 [pid 5244] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 5243] write(1, "executing program\n", 18 [pid 5245] write(3, "1000", 4 [pid 5242] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5243] <... write resumed>) = 18 [pid 5245] <... write resumed>) = 4 [pid 5245] close(3 [pid 5244] <... bpf resumed>) = 3 [pid 5243] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5245] <... close resumed>) = 0 [pid 5244] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5242] <... bpf resumed>) = 4 [pid 5241] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5245] write(1, "executing program\n", 18 [pid 5243] <... bpf resumed>) = 3 [pid 5242] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5244] <... bpf resumed>) = 4 [pid 5245] <... write resumed>) = 18 [pid 5244] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5243] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5245] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5245] <... bpf resumed>) = 3 [pid 5244] <... bpf resumed>) = 5 [pid 5243] <... bpf resumed>) = 4 [pid 5242] <... bpf resumed>) = 5 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5244] perf_event_open( [pid 5243] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5246 attached [pid 5245] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5244] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5243] <... bpf resumed>) = 5 [pid 5242] perf_event_open( [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5246 [pid 5246] set_robust_list(0x555582d82660, 24 [pid 5244] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5245] <... bpf resumed>) = 4 [pid 5244] <... bpf resumed>) = 7 [pid 5243] perf_event_open( [pid 5242] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5246] <... set_robust_list resumed>) = 0 [pid 5245] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5244] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5243] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5245] <... bpf resumed>) = 5 [pid 5242] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5246] <... prctl resumed>) = 0 [pid 5245] perf_event_open( [pid 5244] <... bpf resumed>) = 8 [pid 5243] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5242] <... bpf resumed>) = 7 [pid 5246] setpgid(0, 0 [pid 5245] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5244] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5246] <... setpgid resumed>) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5245] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5244] <... ioctl resumed>) = 0 [pid 5243] <... bpf resumed>) = 7 [pid 5242] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5246] <... openat resumed>) = 3 [pid 5245] <... bpf resumed>) = 7 [pid 5244] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5243] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5246] write(3, "1000", 4 [pid 5245] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5242] <... bpf resumed>) = 8 [pid 5246] <... write resumed>) = 4 [pid 5244] <... bpf resumed>) = 9 [pid 5246] close(3) = 0 [pid 5243] <... bpf resumed>) = 8 executing program [pid 5246] write(1, "executing program\n", 18) = 18 [pid 5245] <... bpf resumed>) = 8 [pid 5244] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5243] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5242] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5246] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5245] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5244] <... bpf resumed>) = 10 [pid 5243] <... ioctl resumed>) = 0 [pid 5242] <... ioctl resumed>) = 0 [pid 5245] <... ioctl resumed>) = 0 [pid 5243] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5242] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5246] <... bpf resumed>) = 3 [pid 5245] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5244] exit_group(0 [pid 5243] <... bpf resumed>) = 9 [pid 5244] <... exit_group resumed>) = ? [pid 5242] <... bpf resumed>) = 9 [pid 5243] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16) = 10 [pid 5243] exit_group(0) = ? [pid 5242] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5246] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5245] <... bpf resumed>) = 9 [pid 5246] <... bpf resumed>) = 4 [pid 5245] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5242] <... bpf resumed>) = 10 [pid 5245] <... bpf resumed>) = 10 [pid 5245] exit_group(0 [pid 5242] exit_group(0 [pid 5245] <... exit_group resumed>) = ? [pid 5243] +++ exited with 0 +++ [pid 5242] <... exit_group resumed>) = ? [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5244] +++ exited with 0 +++ [pid 5235] <... restart_syscall resumed>) = 0 [pid 5246] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5244, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5247 attached [pid 5246] <... bpf resumed>) = 5 [pid 5245] +++ exited with 0 +++ [pid 5247] set_robust_list(0x555582d82660, 24 [pid 5246] perf_event_open( [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5248 attached [pid 5247] <... set_robust_list resumed>) = 0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5247 [pid 5248] set_robust_list(0x555582d82660, 24 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5248 [pid 5248] <... set_robust_list resumed>) = 0 [pid 5247] setpgid(0, 0./strace-static-x86_64: Process 5249 attached [pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5247] <... setpgid resumed>) = 0 [pid 5248] <... prctl resumed>) = 0 [pid 5248] setpgid(0, 0 [pid 5249] set_robust_list(0x555582d82660, 24 [pid 5248] <... setpgid resumed>) = 0 [pid 5249] <... set_robust_list resumed>) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5249 [pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5248] <... openat resumed>) = 3 [pid 5249] setpgid(0, 0 [pid 5247] <... openat resumed>) = 3 [pid 5248] write(3, "1000", 4 [pid 5247] write(3, "1000", 4 [pid 5248] <... write resumed>) = 4 [pid 5247] <... write resumed>) = 4 [pid 5249] <... setpgid resumed>) = 0 [pid 5248] close(3 [pid 5247] close(3 [pid 5248] <... close resumed>) = 0 [pid 5247] <... close resumed>) = 0 executing program executing program [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5248] write(1, "executing program\n", 18) = 18 [pid 5247] write(1, "executing program\n", 18 [pid 5249] <... openat resumed>) = 3 [pid 5248] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5247] <... write resumed>) = 18 [pid 5249] write(3, "1000", 4 [pid 5247] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5249] <... write resumed>) = 4 [pid 5248] <... bpf resumed>) = 3 [pid 5249] close(3) = 0 [pid 5249] write(1, "executing program\n", 18) = 18 [pid 5249] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5248] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5247] <... bpf resumed>) = 3 [pid 5249] <... bpf resumed>) = 3 [pid 5249] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5248] <... bpf resumed>) = 4 [pid 5247] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5249] <... bpf resumed>) = 4 [pid 5248] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5249] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5248] <... bpf resumed>) = 5 [pid 5249] <... bpf resumed>) = 5 [pid 5249] perf_event_open( [pid 5248] perf_event_open( [pid 5242] +++ exited with 0 +++ [pid 5247] <... bpf resumed>) = 4 [pid 5247] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5249] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5248] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5249] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5248] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5247] <... bpf resumed>) = 5 [pid 5246] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5249] <... bpf resumed>) = 7 [pid 5247] perf_event_open( [pid 5249] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5248] <... bpf resumed>) = 7 [pid 5247] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5246] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5247] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5249] <... bpf resumed>) = 8 [pid 5248] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5247] <... bpf resumed>) = 7 [pid 5246] <... bpf resumed>) = 7 [pid 5249] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5246] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5249] <... ioctl resumed>) = 0 [pid 5247] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5249] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5248] <... bpf resumed>) = 8 [pid 5247] <... bpf resumed>) = 8 [pid 5246] <... bpf resumed>) = 8 [pid 5247] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5249] <... bpf resumed>) = 9 [pid 5248] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5247] <... ioctl resumed>) = 0 [pid 5246] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5248] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5250 attached [pid 5249] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5248] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5247] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5246] <... ioctl resumed>) = 0 [pid 5250] set_robust_list(0x555582d82660, 24 [pid 5249] <... bpf resumed>) = 10 [pid 5248] <... bpf resumed>) = 9 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5250 [pid 5247] <... bpf resumed>) = 9 [pid 5246] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5250] <... set_robust_list resumed>) = 0 [pid 5249] exit_group(0 [pid 5248] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5247] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5249] <... exit_group resumed>) = ? [pid 5246] <... bpf resumed>) = 9 [pid 5250] <... prctl resumed>) = 0 [pid 5248] <... bpf resumed>) = 10 [pid 5250] setpgid(0, 0 [pid 5247] <... bpf resumed>) = 10 [pid 5246] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5250] <... setpgid resumed>) = 0 [pid 5248] exit_group(0 [pid 5247] exit_group(0 [pid 5250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5248] <... exit_group resumed>) = ? [pid 5247] <... exit_group resumed>) = ? [pid 5246] <... bpf resumed>) = 10 [pid 5250] <... openat resumed>) = 3 [pid 5249] +++ exited with 0 +++ [pid 5250] write(3, "1000", 4 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5250] <... write resumed>) = 4 [pid 5250] close(3 [pid 5246] exit_group(0 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5250] <... close resumed>) = 0 executing program [pid 5250] write(1, "executing program\n", 18) = 18 [pid 5250] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5248] +++ exited with 0 +++ [pid 5247] +++ exited with 0 +++ [pid 5246] <... exit_group resumed>) = ? [pid 5238] <... restart_syscall resumed>) = 0 [pid 5250] <... bpf resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5250] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5252 attached ./strace-static-x86_64: Process 5251 attached [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5250] <... bpf resumed>) = 5 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5252 [pid 5252] set_robust_list(0x555582d82660, 24 [pid 5251] set_robust_list(0x555582d82660, 24./strace-static-x86_64: Process 5253 attached [pid 5252] <... set_robust_list resumed>) = 0 [pid 5250] perf_event_open( [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5251 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5253 [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5251] <... set_robust_list resumed>) = 0 [pid 5253] set_robust_list(0x555582d82660, 24 [pid 5252] setpgid(0, 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5253] <... set_robust_list resumed>) = 0 [pid 5252] <... setpgid resumed>) = 0 [pid 5251] <... prctl resumed>) = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5251] setpgid(0, 0 [pid 5253] <... prctl resumed>) = 0 [pid 5251] <... setpgid resumed>) = 0 [pid 5252] <... openat resumed>) = 3 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5253] setpgid(0, 0 [pid 5252] write(3, "1000", 4 [pid 5253] <... setpgid resumed>) = 0 [pid 5251] <... openat resumed>) = 3 [pid 5252] <... write resumed>) = 4 [pid 5251] write(3, "1000", 4 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5252] close(3 [pid 5251] <... write resumed>) = 4 [pid 5252] <... close resumed>) = 0 [pid 5251] close(3 [pid 5252] write(1, "executing program\n", 18executing program [pid 5251] <... close resumed>) = 0 executing program [pid 5252] <... write resumed>) = 18 [pid 5251] write(1, "executing program\n", 18 [pid 5252] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5251] <... write resumed>) = 18 [pid 5253] <... openat resumed>) = 3 [pid 5253] write(3, "1000", 4 [pid 5251] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5253] <... write resumed>) = 4 [pid 5252] <... bpf resumed>) = 3 [pid 5253] close(3) = 0 [pid 5252] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5251] <... bpf resumed>) = 3 executing program [pid 5253] write(1, "executing program\n", 18) = 18 [pid 5250] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5253] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5250] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5253] <... bpf resumed>) = 3 [pid 5252] <... bpf resumed>) = 4 [pid 5251] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5246] +++ exited with 0 +++ [pid 5252] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5253] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5252] <... bpf resumed>) = 5 [pid 5251] <... bpf resumed>) = 4 [pid 5250] <... bpf resumed>) = 7 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5251] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5252] perf_event_open( [pid 5250] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5253] <... bpf resumed>) = 4 [pid 5252] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5251] <... bpf resumed>) = 5 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5253] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5251] perf_event_open( [pid 5250] <... bpf resumed>) = 8 [pid 5252] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5250] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5253] <... bpf resumed>) = 5 [pid 5252] <... bpf resumed>) = 7 [pid 5251] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5250] <... ioctl resumed>) = 0 [pid 5253] perf_event_open( [pid 5252] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5250] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5253] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5251] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5253] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5252] <... bpf resumed>) = 8 [pid 5250] <... bpf resumed>) = 9 [pid 5250] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5254 attached [pid 5253] <... bpf resumed>) = 7 [pid 5252] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5251] <... bpf resumed>) = 7 [pid 5254] set_robust_list(0x555582d82660, 24 [pid 5253] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5252] <... ioctl resumed>) = 0 [pid 5251] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5250] <... bpf resumed>) = 10 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5254 [pid 5254] <... set_robust_list resumed>) = 0 [pid 5253] <... bpf resumed>) = 8 [pid 5252] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5251] <... bpf resumed>) = 8 [pid 5250] exit_group(0 [pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5253] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5252] <... bpf resumed>) = 9 [pid 5251] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5250] <... exit_group resumed>) = ? [pid 5254] <... prctl resumed>) = 0 [pid 5254] setpgid(0, 0) = 0 [pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5252] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5254] <... openat resumed>) = 3 [pid 5252] <... bpf resumed>) = 10 [pid 5252] exit_group(0 [pid 5254] write(3, "1000", 4 [pid 5253] <... ioctl resumed>) = 0 [pid 5251] <... ioctl resumed>) = 0 [pid 5250] +++ exited with 0 +++ [pid 5254] <... write resumed>) = 4 [pid 5253] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5252] <... exit_group resumed>) = ? [pid 5251] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5250, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5254] close(3) = 0 [pid 5253] <... bpf resumed>) = 9 [pid 5251] <... bpf resumed>) = 9 [pid 5254] write(1, "executing program\n", 18 [pid 5252] +++ exited with 0 +++ executing program [pid 5254] <... write resumed>) = 18 [pid 5253] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5254] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5251] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5255 attached [pid 5254] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5256 attached [pid 5255] set_robust_list(0x555582d82660, 24) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5255 [pid 5256] set_robust_list(0x555582d82660, 24 [pid 5254] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5256 [pid 5256] <... set_robust_list resumed>) = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5253] <... bpf resumed>) = 10 [pid 5256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5255] <... prctl resumed>) = 0 [pid 5253] exit_group(0 [pid 5251] <... bpf resumed>) = 10 [pid 5256] <... prctl resumed>) = 0 [pid 5255] setpgid(0, 0 [pid 5253] <... exit_group resumed>) = ? [pid 5256] setpgid(0, 0 [pid 5255] <... setpgid resumed>) = 0 [pid 5254] <... bpf resumed>) = 4 [pid 5251] exit_group(0 [pid 5256] <... setpgid resumed>) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5255] <... openat resumed>) = 3 [pid 5254] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5251] <... exit_group resumed>) = ? [pid 5256] <... openat resumed>) = 3 [pid 5255] write(3, "1000", 4 [pid 5256] write(3, "1000", 4 [pid 5255] <... write resumed>) = 4 [pid 5256] <... write resumed>) = 4 [pid 5255] close(3 [pid 5256] close(3 [pid 5255] <... close resumed>) = 0 [pid 5254] <... bpf resumed>) = 5 [pid 5256] <... close resumed>) = 0 executing program executing program [pid 5255] write(1, "executing program\n", 18 [pid 5256] write(1, "executing program\n", 18 [pid 5254] perf_event_open( [pid 5253] +++ exited with 0 +++ [pid 5255] <... write resumed>) = 18 [pid 5256] <... write resumed>) = 18 [pid 5255] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5256] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5256] <... bpf resumed>) = 3 [pid 5255] <... bpf resumed>) = 3 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5257 ./strace-static-x86_64: Process 5257 attached [pid 5256] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5255] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5254] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5257] set_robust_list(0x555582d82660, 24) = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5254] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5257] <... prctl resumed>) = 0 [pid 5256] <... bpf resumed>) = 4 [pid 5255] <... bpf resumed>) = 4 [pid 5257] setpgid(0, 0 [pid 5255] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5254] <... bpf resumed>) = 7 [pid 5256] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5257] <... setpgid resumed>) = 0 [pid 5254] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5254] <... bpf resumed>) = 8 [pid 5257] <... openat resumed>) = 3 [pid 5254] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5257] write(3, "1000", 4 [pid 5254] <... ioctl resumed>) = 0 [pid 5254] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5257] <... write resumed>) = 4 [pid 5257] close(3 [pid 5254] <... bpf resumed>) = 9 [pid 5257] <... close resumed>) = 0 [pid 5256] <... bpf resumed>) = 5 [pid 5255] <... bpf resumed>) = 5 [pid 5254] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5251] +++ exited with 0 +++ executing program [pid 5257] write(1, "executing program\n", 18 [pid 5256] perf_event_open( [pid 5255] perf_event_open( [pid 5254] <... bpf resumed>) = 10 [pid 5257] <... write resumed>) = 18 [pid 5254] exit_group(0 [pid 5255] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5256] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5255] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5257] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5256] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5255] <... bpf resumed>) = 7 [pid 5254] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5258 attached [pid 5257] <... bpf resumed>) = 3 [pid 5256] <... bpf resumed>) = 7 [pid 5255] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5256] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5258 [pid 5258] set_robust_list(0x555582d82660, 24 [pid 5257] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5258] <... set_robust_list resumed>) = 0 [pid 5256] <... bpf resumed>) = 8 [pid 5255] <... bpf resumed>) = 8 [pid 5258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5257] <... bpf resumed>) = 4 [pid 5254] +++ exited with 0 +++ [pid 5258] <... prctl resumed>) = 0 [pid 5258] setpgid(0, 0) = 0 [pid 5257] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5256] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5255] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5257] <... bpf resumed>) = 5 [pid 5256] <... ioctl resumed>) = 0 [pid 5258] <... openat resumed>) = 3 [pid 5257] perf_event_open( [pid 5255] <... ioctl resumed>) = 0 [pid 5256] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5258] write(3, "1000", 4 [pid 5257] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5255] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128executing program [pid 5258] <... write resumed>) = 4 [pid 5256] <... bpf resumed>) = 9 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5258] close(3) = 0 [pid 5258] write(1, "executing program\n", 18) = 18 [pid 5258] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5259 attached [pid 5257] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5255] <... bpf resumed>) = 9 [pid 5259] set_robust_list(0x555582d82660, 24 [pid 5257] <... bpf resumed>) = 7 [pid 5256] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5255] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5259 [pid 5258] <... bpf resumed>) = 3 [pid 5259] <... set_robust_list resumed>) = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5256] <... bpf resumed>) = 10 [pid 5259] <... prctl resumed>) = 0 [pid 5255] <... bpf resumed>) = 10 [pid 5259] setpgid(0, 0 [pid 5257] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5259] <... setpgid resumed>) = 0 [pid 5258] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5256] exit_group(0 [pid 5255] exit_group(0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5256] <... exit_group resumed>) = ? [pid 5255] <... exit_group resumed>) = ? [pid 5259] write(3, "1000", 4 [pid 5258] <... bpf resumed>) = 4 [pid 5257] <... bpf resumed>) = 8 [pid 5256] +++ exited with 0 +++ [pid 5259] <... write resumed>) = 4 [pid 5258] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5257] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5256, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5259] close(3 [pid 5257] <... ioctl resumed>) = 0 [pid 5259] <... close resumed>) = 0 [pid 5257] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5259] write(1, "executing program\n", 18executing program [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5257] <... bpf resumed>) = 9 [pid 5257] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5260 attached [pid 5259] <... write resumed>) = 18 [pid 5260] set_robust_list(0x555582d82660, 24 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5260 [pid 5260] <... set_robust_list resumed>) = 0 [pid 5259] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5260] setpgid(0, 0 [pid 5259] <... bpf resumed>) = 3 [pid 5258] <... bpf resumed>) = 5 [pid 5257] <... bpf resumed>) = 10 [pid 5255] +++ exited with 0 +++ [pid 5260] <... setpgid resumed>) = 0 [pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5259] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5258] perf_event_open( [pid 5257] exit_group(0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5260] <... openat resumed>) = 3 [pid 5258] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5257] <... exit_group resumed>) = ? [pid 5260] write(3, "1000", 4 [pid 5259] <... bpf resumed>) = 4 [pid 5260] <... write resumed>) = 4 [pid 5260] close(3executing program ) = 0 [pid 5260] write(1, "executing program\n", 18) = 18 [pid 5260] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5259] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5258] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5260] <... bpf resumed>) = 3 [pid 5258] <... bpf resumed>) = 7 ./strace-static-x86_64: Process 5261 attached [pid 5261] set_robust_list(0x555582d82660, 24) = 0 [pid 5260] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5259] <... bpf resumed>) = 5 [pid 5258] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5257] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5261 [pid 5261] <... prctl resumed>) = 0 [pid 5259] perf_event_open( [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5261] setpgid(0, 0 [pid 5260] <... bpf resumed>) = 4 [pid 5259] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5261] <... setpgid resumed>) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5259] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5258] <... bpf resumed>) = 8 [pid 5261] <... openat resumed>) = 3 [pid 5260] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5258] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5261] write(3, "1000", 4 [pid 5260] <... bpf resumed>) = 5 [pid 5259] <... bpf resumed>) = 7 [pid 5261] <... write resumed>) = 4 [pid 5260] perf_event_open( [pid 5259] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5258] <... ioctl resumed>) = 0 [pid 5261] close(3 [pid 5260] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5261] <... close resumed>) = 0 [pid 5259] <... bpf resumed>) = 8 executing program [pid 5261] write(1, "executing program\n", 18 [pid 5260] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5259] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5258] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5261] <... write resumed>) = 18 [pid 5260] <... bpf resumed>) = 7 [pid 5259] <... ioctl resumed>) = 0 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5258] <... bpf resumed>) = 9 [pid 5261] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5259] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5261] <... bpf resumed>) = 3 [pid 5260] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5259] <... bpf resumed>) = 9 [pid 5258] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5261] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5262 attached [pid 5260] <... bpf resumed>) = 8 [pid 5259] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5262] set_robust_list(0x555582d82660, 24) = 0 [pid 5261] <... bpf resumed>) = 4 [pid 5260] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5259] <... bpf resumed>) = 10 [pid 5258] <... bpf resumed>) = 10 [pid 5260] <... ioctl resumed>) = 0 [pid 5262] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5259] exit_group(0 [pid 5258] exit_group(0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5262 [pid 5262] <... prctl resumed>) = 0 [pid 5261] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5260] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5259] <... exit_group resumed>) = ? [pid 5258] <... exit_group resumed>) = ? [pid 5262] setpgid(0, 0 [pid 5261] <... bpf resumed>) = 5 [pid 5260] <... bpf resumed>) = 9 [pid 5261] perf_event_open( [pid 5262] <... setpgid resumed>) = 0 [pid 5259] +++ exited with 0 +++ [pid 5262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5261] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5260] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5258] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5261] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5262] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5258, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5261] <... bpf resumed>) = 7 [pid 5262] <... write resumed>) = 4 [pid 5262] close(3 [pid 5261] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5262] <... close resumed>) = 0 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5262] write(1, "executing program\n", 18 [pid 5261] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5263 attached executing program [pid 5263] set_robust_list(0x555582d82660, 24./strace-static-x86_64: Process 5264 attached [pid 5262] <... write resumed>) = 18 [pid 5261] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5260] <... bpf resumed>) = 10 [pid 5264] set_robust_list(0x555582d82660, 24 [pid 5263] <... set_robust_list resumed>) = 0 [pid 5262] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5261] <... ioctl resumed>) = 0 [pid 5260] exit_group(0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5264 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5263 [pid 5264] <... set_robust_list resumed>) = 0 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5261] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5260] <... exit_group resumed>) = ? [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5263] <... prctl resumed>) = 0 [pid 5262] <... bpf resumed>) = 3 [pid 5261] <... bpf resumed>) = 9 [pid 5263] setpgid(0, 0 [pid 5262] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5263] <... setpgid resumed>) = 0 [pid 5264] <... prctl resumed>) = 0 [pid 5261] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5264] setpgid(0, 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5264] <... setpgid resumed>) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5262] <... bpf resumed>) = 4 [pid 5264] <... openat resumed>) = 3 [pid 5263] <... openat resumed>) = 3 [pid 5262] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5261] <... bpf resumed>) = 10 [pid 5260] +++ exited with 0 +++ [pid 5264] write(3, "1000", 4 [pid 5263] write(3, "1000", 4 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5264] <... write resumed>) = 4 [pid 5263] <... write resumed>) = 4 [pid 5262] <... bpf resumed>) = 5 [pid 5261] exit_group(0 [pid 5264] close(3 [pid 5263] close(3 [pid 5262] perf_event_open( [pid 5261] <... exit_group resumed>) = ? [pid 5264] <... close resumed>) = 0 [pid 5263] <... close resumed>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5265 attached [pid 5264] write(1, "executing program\n", 18executing program executing program [pid 5263] write(1, "executing program\n", 18 [pid 5262] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5264] <... write resumed>) = 18 [pid 5263] <... write resumed>) = 18 [pid 5262] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5264] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5263] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5265 [pid 5265] set_robust_list(0x555582d82660, 24 [pid 5263] <... bpf resumed>) = 3 [pid 5262] <... bpf resumed>) = 7 [pid 5265] <... set_robust_list resumed>) = 0 [pid 5264] <... bpf resumed>) = 3 [pid 5263] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5262] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5264] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5263] <... bpf resumed>) = 4 [pid 5265] <... prctl resumed>) = 0 [pid 5262] <... bpf resumed>) = 8 [pid 5265] setpgid(0, 0 [pid 5262] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5263] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5265] <... setpgid resumed>) = 0 [pid 5262] <... ioctl resumed>) = 0 [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5264] <... bpf resumed>) = 4 [pid 5262] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5264] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5265] <... openat resumed>) = 3 [pid 5262] <... bpf resumed>) = 9 [pid 5265] write(3, "1000", 4) = 4 [pid 5265] close(3 [pid 5264] <... bpf resumed>) = 5 [pid 5263] <... bpf resumed>) = 5 [pid 5262] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5261] +++ exited with 0 +++ [pid 5265] <... close resumed>) = 0 [pid 5264] perf_event_open( [pid 5263] perf_event_open( [pid 5262] <... bpf resumed>) = 10 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5265] write(1, "executing program\n", 18 [pid 5263] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5262] exit_group(0) = ? executing program [pid 5265] <... write resumed>) = 18 [pid 5264] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5263] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5265] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5264] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5262] +++ exited with 0 +++ [pid 5263] <... bpf resumed>) = 7 [pid 5265] <... bpf resumed>) = 3 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5262, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5264] <... bpf resumed>) = 7 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5263] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5265] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5263] <... bpf resumed>) = 8 [pid 5265] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5266 attached [pid 5264] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5263] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5266] set_robust_list(0x555582d82660, 24 [pid 5265] <... bpf resumed>) = 5 [pid 5263] <... ioctl resumed>) = 0 [pid 5266] <... set_robust_list resumed>) = 0 [pid 5265] perf_event_open( [pid 5264] <... bpf resumed>) = 8 [pid 5263] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5266 [pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5265] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5264] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5265] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5263] <... bpf resumed>) = 9 [pid 5266] <... prctl resumed>) = 0 [pid 5264] <... ioctl resumed>) = 0 [pid 5265] <... bpf resumed>) = 7 [pid 5263] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5266] setpgid(0, 0 [pid 5264] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128./strace-static-x86_64: Process 5267 attached [pid 5266] <... setpgid resumed>) = 0 [pid 5265] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5264] <... bpf resumed>) = 9 [pid 5263] <... bpf resumed>) = 10 [pid 5267] set_robust_list(0x555582d82660, 24 [pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5265] <... bpf resumed>) = 8 [pid 5267] <... set_robust_list resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5267 [pid 5266] <... openat resumed>) = 3 [pid 5265] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5264] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5263] exit_group(0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5266] write(3, "1000", 4 [pid 5265] <... ioctl resumed>) = 0 [pid 5264] <... bpf resumed>) = 10 [pid 5267] <... prctl resumed>) = 0 [pid 5266] <... write resumed>) = 4 [pid 5263] <... exit_group resumed>) = ? [pid 5267] setpgid(0, 0 [pid 5266] close(3 [pid 5265] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5267] <... setpgid resumed>) = 0 [pid 5266] <... close resumed>) = 0 [pid 5264] exit_group(0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5266] write(1, "executing program\n", 18executing program [pid 5264] <... exit_group resumed>) = ? [pid 5266] <... write resumed>) = 18 [pid 5265] <... bpf resumed>) = 9 [pid 5266] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5267] <... openat resumed>) = 3 [pid 5266] <... bpf resumed>) = 3 [pid 5265] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5267] write(3, "1000", 4 [pid 5266] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5267] <... write resumed>) = 4 [pid 5267] close(3) = 0 [pid 5267] write(1, "executing program\n", 18executing program [pid 5266] <... bpf resumed>) = 4 [pid 5267] <... write resumed>) = 18 [pid 5266] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5267] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5267] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5267] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5265] <... bpf resumed>) = 10 [pid 5263] +++ exited with 0 +++ [pid 5265] exit_group(0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5265] <... exit_group resumed>) = ? [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5268 attached , child_tidptr=0x555582d82650) = 5268 [pid 5268] set_robust_list(0x555582d82660, 24) = 0 [pid 5268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5268] setpgid(0, 0 [pid 5267] <... bpf resumed>) = 5 [pid 5266] <... bpf resumed>) = 5 [pid 5264] +++ exited with 0 +++ [pid 5268] <... setpgid resumed>) = 0 [pid 5268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5267] perf_event_open( [pid 5266] perf_event_open( [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5268] <... openat resumed>) = 3 [pid 5268] write(3, "1000", 4) = 4 [pid 5268] close(3executing program [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5268] <... close resumed>) = 0 [pid 5268] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 5269 attached [pid 5268] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5267] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5266] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5265] +++ exited with 0 +++ [pid 5269] set_robust_list(0x555582d82660, 24) = 0 [pid 5267] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5266] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5269 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5268] <... bpf resumed>) = 3 [pid 5267] <... bpf resumed>) = 7 [pid 5266] <... bpf resumed>) = 7 [pid 5268] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5269] <... prctl resumed>) = 0 [pid 5269] setpgid(0, 0 [pid 5267] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5266] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5269] <... setpgid resumed>) = 0 [pid 5268] <... bpf resumed>) = 4 [pid 5268] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5267] <... bpf resumed>) = 8 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5266] <... bpf resumed>) = 8 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5268] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5268] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5270 attached [pid 5269] <... openat resumed>) = 3 [pid 5267] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5266] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5270] set_robust_list(0x555582d82660, 24 [pid 5268] <... bpf resumed>) = 7 [pid 5267] <... ioctl resumed>) = 0 [pid 5266] <... ioctl resumed>) = 0 [pid 5269] write(3, "1000", 4 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5270 [pid 5270] <... set_robust_list resumed>) = 0 [pid 5268] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5267] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5269] <... write resumed>) = 4 [pid 5266] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5269] close(3 [pid 5268] <... bpf resumed>) = 8 [pid 5266] <... bpf resumed>) = 9 [pid 5270] <... prctl resumed>) = 0 [pid 5267] <... bpf resumed>) = 9 executing program [pid 5270] setpgid(0, 0 [pid 5269] <... close resumed>) = 0 [pid 5268] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5266] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5270] <... setpgid resumed>) = 0 [pid 5267] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5268] <... ioctl resumed>) = 0 [pid 5269] write(1, "executing program\n", 18) = 18 [pid 5267] <... bpf resumed>) = 10 [pid 5270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5269] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5270] <... openat resumed>) = 3 [pid 5268] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5267] exit_group(0 [pid 5266] <... bpf resumed>) = 10 [pid 5269] <... bpf resumed>) = 3 [pid 5269] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5270] write(3, "1000", 4 [pid 5268] <... bpf resumed>) = 9 [pid 5267] <... exit_group resumed>) = ? [pid 5266] exit_group(0 [pid 5270] <... write resumed>) = 4 [pid 5269] <... bpf resumed>) = 4 [pid 5268] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5270] close(3 [pid 5268] <... bpf resumed>) = 10 [pid 5270] <... close resumed>) = 0 [pid 5269] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5268] exit_group(0 [pid 5266] <... exit_group resumed>) = ? [pid 5270] write(1, "executing program\n", 18 [pid 5269] <... bpf resumed>) = 5 [pid 5268] <... exit_group resumed>) = ? executing program [pid 5269] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5270] <... write resumed>) = 18 [pid 5270] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5269] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5270] <... bpf resumed>) = 3 [pid 5269] <... bpf resumed>) = 7 [pid 5268] +++ exited with 0 +++ [pid 5267] +++ exited with 0 +++ [pid 5269] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5268, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5270] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5269] <... bpf resumed>) = 8 [pid 5269] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5270] <... bpf resumed>) = 4 [pid 5269] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5270] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5269] <... bpf resumed>) = 9 [pid 5269] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5270] <... bpf resumed>) = 5 [pid 5266] +++ exited with 0 +++ [pid 5270] perf_event_open( [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5269] <... bpf resumed>) = 10 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5269] exit_group(0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5270] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 ./strace-static-x86_64: Process 5272 attached ./strace-static-x86_64: Process 5271 attached [pid 5269] <... exit_group resumed>) = ? [pid 5270] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5272] set_robust_list(0x555582d82660, 24 [pid 5271] set_robust_list(0x555582d82660, 24 [pid 5270] <... bpf resumed>) = 7 [pid 5272] <... set_robust_list resumed>) = 0 [pid 5271] <... set_robust_list resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5271 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5272 [pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5272] <... prctl resumed>) = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5270] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5272] setpgid(0, 0) = 0 [pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5271] <... prctl resumed>) = 0 [pid 5270] <... bpf resumed>) = 8 [pid 5272] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5273 attached [pid 5271] setpgid(0, 0 [pid 5270] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5271] <... setpgid resumed>) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5273 [pid 5273] set_robust_list(0x555582d82660, 24 [pid 5272] close(3) = 0 [pid 5271] <... openat resumed>) = 3 [pid 5271] write(3, "1000", 4 [pid 5273] <... set_robust_list resumed>) = 0 [pid 5272] write(1, "executing program\n", 18 [pid 5270] <... ioctl resumed>) = 0 executing program [pid 5269] +++ exited with 0 +++ [pid 5272] <... write resumed>) = 18 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- executing program [pid 5272] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5270] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5273] <... prctl resumed>) = 0 [pid 5271] <... write resumed>) = 4 [pid 5271] close(3) = 0 [pid 5271] write(1, "executing program\n", 18 [pid 5270] <... bpf resumed>) = 9 [pid 5273] setpgid(0, 0 [pid 5271] <... write resumed>) = 18 [pid 5271] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5273] <... setpgid resumed>) = 0 [pid 5272] <... bpf resumed>) = 3 [pid 5270] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5271] <... bpf resumed>) = 3 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5271] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5273] <... openat resumed>) = 3 [pid 5272] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5270] <... bpf resumed>) = 10 [pid 5273] write(3, "1000", 4 [pid 5271] <... bpf resumed>) = 4 executing program [pid 5273] <... write resumed>) = 4 [pid 5273] close(3) = 0 [pid 5273] write(1, "executing program\n", 18 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5273] <... write resumed>) = 18 [pid 5272] <... bpf resumed>) = 4 [pid 5273] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5270] exit_group(0 [pid 5271] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5272] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5271] <... bpf resumed>) = 5 [pid 5270] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5274 attached [pid 5273] <... bpf resumed>) = 3 [pid 5272] <... bpf resumed>) = 5 [pid 5271] perf_event_open( [pid 5274] set_robust_list(0x555582d82660, 24 [pid 5272] perf_event_open( [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5274 [pid 5274] <... set_robust_list resumed>) = 0 [pid 5273] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5272] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5273] <... bpf resumed>) = 4 [pid 5271] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5270] +++ exited with 0 +++ [pid 5272] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5271] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5270, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5274] <... prctl resumed>) = 0 [pid 5273] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5271] <... bpf resumed>) = 7 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5274] setpgid(0, 0 [pid 5273] <... bpf resumed>) = 5 [pid 5272] <... bpf resumed>) = 7 [pid 5271] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5274] <... setpgid resumed>) = 0 [pid 5273] perf_event_open( [pid 5272] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5273] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5271] <... bpf resumed>) = 8 [pid 5274] <... openat resumed>) = 3 [pid 5274] write(3, "1000", 4) = 4 [pid 5273] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5272] <... bpf resumed>) = 8 [pid 5271] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5274] close(3 [pid 5273] <... bpf resumed>) = 7 [pid 5272] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5271] <... ioctl resumed>) = 0 [pid 5274] <... close resumed>) = 0 [pid 5273] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5272] <... ioctl resumed>) = 0 [pid 5271] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 executing program [pid 5274] write(1, "executing program\n", 18 [pid 5273] <... bpf resumed>) = 8 [pid 5272] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5274] <... write resumed>) = 18 [pid 5273] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5271] <... bpf resumed>) = 9 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5274] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5273] <... ioctl resumed>) = 0 [pid 5272] <... bpf resumed>) = 9 [pid 5271] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5273] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128./strace-static-x86_64: Process 5275 attached ) = 9 [pid 5272] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5271] <... bpf resumed>) = 10 [pid 5274] <... bpf resumed>) = 3 [pid 5272] <... bpf resumed>) = 10 [pid 5271] exit_group(0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5275 [pid 5275] set_robust_list(0x555582d82660, 24 [pid 5274] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5273] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5275] <... set_robust_list resumed>) = 0 [pid 5273] <... bpf resumed>) = 10 [pid 5272] exit_group(0 [pid 5271] <... exit_group resumed>) = ? [pid 5273] exit_group(0) = ? [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5274] <... bpf resumed>) = 4 [pid 5272] <... exit_group resumed>) = ? [pid 5271] +++ exited with 0 +++ [pid 5275] <... prctl resumed>) = 0 [pid 5275] setpgid(0, 0 [pid 5274] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5275] <... setpgid resumed>) = 0 [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5274] <... bpf resumed>) = 5 [pid 5274] perf_event_open( [pid 5275] <... openat resumed>) = 3 [pid 5274] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5275] write(3, "1000", 4 [pid 5273] +++ exited with 0 +++ executing program [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5275] <... write resumed>) = 4 [pid 5275] close(3) = 0 [pid 5275] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 5276 attached [pid 5274] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5276] set_robust_list(0x555582d82660, 24 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5276 [pid 5276] <... set_robust_list resumed>) = 0 [pid 5275] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5276] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5274] <... bpf resumed>) = 7 [pid 5276] <... prctl resumed>) = 0 [pid 5275] <... bpf resumed>) = 3 [pid 5276] setpgid(0, 0 [pid 5275] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5274] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5276] <... setpgid resumed>) = 0 [pid 5274] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5277 attached [pid 5276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5275] <... bpf resumed>) = 4 [pid 5272] +++ exited with 0 +++ [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5277 [pid 5277] set_robust_list(0x555582d82660, 24 [pid 5274] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5277] <... set_robust_list resumed>) = 0 [pid 5276] <... openat resumed>) = 3 [pid 5275] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5274] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5275] <... bpf resumed>) = 5 [pid 5277] <... prctl resumed>) = 0 [pid 5276] write(3, "1000", 4 [pid 5277] setpgid(0, 0 [pid 5276] <... write resumed>) = 4 [pid 5275] perf_event_open( [pid 5277] <... setpgid resumed>) = 0 [pid 5276] close(3 [pid 5275] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5274] <... bpf resumed>) = 9 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5276] <... close resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5275] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5277] <... openat resumed>) = 3 [pid 5276] write(1, "executing program\n", 18 [pid 5274] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5278 attached [pid 5276] <... write resumed>) = 18 [pid 5275] <... bpf resumed>) = 7 [pid 5277] write(3, "1000", 4 [pid 5274] <... bpf resumed>) = 10 [pid 5278] set_robust_list(0x555582d82660, 24 [pid 5277] <... write resumed>) = 4 [pid 5276] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5275] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5278] <... set_robust_list resumed>) = 0 [pid 5277] close(3 [pid 5274] exit_group(0 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5278 [pid 5278] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5277] <... close resumed>) = 0 executing program [pid 5275] <... bpf resumed>) = 8 [pid 5274] <... exit_group resumed>) = ? [pid 5278] <... prctl resumed>) = 0 [pid 5277] write(1, "executing program\n", 18 [pid 5276] <... bpf resumed>) = 3 [pid 5278] setpgid(0, 0 [pid 5277] <... write resumed>) = 18 [pid 5276] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5278] <... setpgid resumed>) = 0 [pid 5276] <... bpf resumed>) = 4 [pid 5275] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5277] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5276] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5275] <... ioctl resumed>) = 0 [pid 5278] write(3, "1000", 4 [pid 5277] <... bpf resumed>) = 3 [pid 5278] <... write resumed>) = 4 [pid 5277] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5275] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5274] +++ exited with 0 +++ [pid 5276] <... bpf resumed>) = 5 [pid 5278] close(3 [pid 5277] <... bpf resumed>) = 4 [pid 5276] perf_event_open( [pid 5275] <... bpf resumed>) = 9 [pid 5278] <... close resumed>) = 0 [pid 5278] write(1, "executing program\n", 18 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5274, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program [pid 5278] <... write resumed>) = 18 [pid 5276] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5275] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5278] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5277] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5276] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5279 attached [pid 5277] <... bpf resumed>) = 5 [pid 5275] <... bpf resumed>) = 10 [pid 5279] set_robust_list(0x555582d82660, 24 [pid 5277] perf_event_open( [pid 5276] <... bpf resumed>) = 7 [pid 5279] <... set_robust_list resumed>) = 0 [pid 5278] <... bpf resumed>) = 3 [pid 5277] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5276] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5275] exit_group(0 [pid 5279] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5278] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5277] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5279 [pid 5277] <... bpf resumed>) = 7 [pid 5276] <... bpf resumed>) = 8 [pid 5275] <... exit_group resumed>) = ? [pid 5279] <... prctl resumed>) = 0 [pid 5278] <... bpf resumed>) = 4 [pid 5277] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5276] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5279] setpgid(0, 0 [pid 5278] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5277] <... bpf resumed>) = 8 [pid 5276] <... ioctl resumed>) = 0 [pid 5275] +++ exited with 0 +++ [pid 5279] <... setpgid resumed>) = 0 [pid 5278] <... bpf resumed>) = 5 [pid 5277] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5276] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5278] perf_event_open( [pid 5277] <... ioctl resumed>) = 0 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5276] <... bpf resumed>) = 9 [pid 5277] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5276] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5279] <... openat resumed>) = 3 [pid 5278] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5276] <... bpf resumed>) = 10 [pid 5277] <... bpf resumed>) = 9 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5276] exit_group(0) = ? [pid 5278] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5279] write(3, "1000", 4 [pid 5277] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5279] <... write resumed>) = 4 [pid 5278] <... bpf resumed>) = 7 [pid 5276] +++ exited with 0 +++ [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5279] close(3./strace-static-x86_64: Process 5280 attached ) = 0 [pid 5278] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5276, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 5280] set_robust_list(0x555582d82660, 24 [pid 5279] write(1, "executing program\n", 18 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5280] <... set_robust_list resumed>) = 0 [pid 5279] <... write resumed>) = 18 [pid 5278] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5281 attached [pid 5281] set_robust_list(0x555582d82660, 24 [pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5279] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5278] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5277] <... bpf resumed>) = 10 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5281 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5280 [pid 5281] <... set_robust_list resumed>) = 0 [pid 5280] <... prctl resumed>) = 0 [pid 5278] <... ioctl resumed>) = 0 [pid 5278] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5277] exit_group(0 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5280] setpgid(0, 0 [pid 5278] <... bpf resumed>) = 9 [pid 5277] <... exit_group resumed>) = ? [pid 5281] <... prctl resumed>) = 0 [pid 5280] <... setpgid resumed>) = 0 [pid 5279] <... bpf resumed>) = 3 [pid 5278] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5281] setpgid(0, 0) = 0 [pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5278] <... bpf resumed>) = 10 [pid 5278] exit_group(0 [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5278] <... exit_group resumed>) = ? [pid 5281] <... openat resumed>) = 3 [pid 5280] <... openat resumed>) = 3 [pid 5279] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5281] write(3, "1000", 4 [pid 5280] write(3, "1000", 4 [pid 5281] <... write resumed>) = 4 [pid 5281] close(3 [pid 5280] <... write resumed>) = 4 [pid 5281] <... close resumed>) = 0 [pid 5280] close(3 [pid 5281] write(1, "executing program\n", 18 [pid 5280] <... close resumed>) = 0 executing program [pid 5279] <... bpf resumed>) = 4 [pid 5281] <... write resumed>) = 18 [pid 5280] write(1, "executing program\n", 18 [pid 5279] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5280] <... write resumed>) = 18 [pid 5281] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5280] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5281] <... bpf resumed>) = 3 [pid 5281] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5280] <... bpf resumed>) = 3 [pid 5279] <... bpf resumed>) = 5 [pid 5277] +++ exited with 0 +++ [pid 5280] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5279] perf_event_open( [pid 5281] <... bpf resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5281] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5280] <... bpf resumed>) = 4 [pid 5281] <... bpf resumed>) = 5 [pid 5280] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5280] <... bpf resumed>) = 5 [pid 5281] perf_event_open( [pid 5280] perf_event_open(./strace-static-x86_64: Process 5282 attached [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5282 [pid 5282] set_robust_list(0x555582d82660, 24) = 0 [pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5281] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5280] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5279] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5278] +++ exited with 0 +++ [pid 5282] setpgid(0, 0 [pid 5280] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5279] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5282] <... setpgid resumed>) = 0 [pid 5281] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5279] <... bpf resumed>) = 7 [pid 5281] <... bpf resumed>) = 7 [pid 5280] <... bpf resumed>) = 7 [pid 5279] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5281] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5280] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5282] <... openat resumed>) = 3 [pid 5281] <... bpf resumed>) = 8 [pid 5280] <... bpf resumed>) = 8 [pid 5279] <... bpf resumed>) = 8 [pid 5280] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 ./strace-static-x86_64: Process 5283 attached [pid 5282] write(3, "1000", 4 [pid 5281] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5280] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5279] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5283] set_robust_list(0x555582d82660, 24 [pid 5282] <... write resumed>) = 4 [pid 5281] <... ioctl resumed>) = 0 [pid 5279] <... ioctl resumed>) = 0 [pid 5283] <... set_robust_list resumed>) = 0 [pid 5282] close(3 [pid 5281] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5280] <... bpf resumed>) = 9 [pid 5279] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5283 [pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5282] <... close resumed>) = 0 [pid 5281] <... bpf resumed>) = 9 executing program [pid 5280] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5283] <... prctl resumed>) = 0 [pid 5282] write(1, "executing program\n", 18 [pid 5281] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5280] <... bpf resumed>) = 10 [pid 5283] setpgid(0, 0 [pid 5282] <... write resumed>) = 18 [pid 5281] <... bpf resumed>) = 10 [pid 5279] <... bpf resumed>) = 9 [pid 5282] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5281] exit_group(0 [pid 5280] exit_group(0 [pid 5283] <... setpgid resumed>) = 0 [pid 5279] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5281] <... exit_group resumed>) = ? [pid 5280] <... exit_group resumed>) = ? [pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5283] write(3, "1000", 4 [pid 5279] <... bpf resumed>) = 10 [pid 5283] <... write resumed>) = 4 [pid 5282] <... bpf resumed>) = 3 [pid 5279] exit_group(0 [pid 5283] close(3 [pid 5282] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5279] <... exit_group resumed>) = ? [pid 5283] <... close resumed>) = 0 [pid 5283] write(1, "executing program\n", 18executing program ) = 18 [pid 5282] <... bpf resumed>) = 4 [pid 5283] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5282] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5283] <... bpf resumed>) = 3 [pid 5283] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5283] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5282] <... bpf resumed>) = 5 [pid 5281] +++ exited with 0 +++ [pid 5280] +++ exited with 0 +++ [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5283] perf_event_open( [pid 5282] perf_event_open( [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5284 attached ./strace-static-x86_64: Process 5285 attached [pid 5284] set_robust_list(0x555582d82660, 24 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5285 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5284 [pid 5285] set_robust_list(0x555582d82660, 24) = 0 [pid 5284] <... set_robust_list resumed>) = 0 [pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5285] <... prctl resumed>) = 0 [pid 5285] setpgid(0, 0 [pid 5284] <... prctl resumed>) = 0 [pid 5285] <... setpgid resumed>) = 0 [pid 5284] setpgid(0, 0 [pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5284] <... setpgid resumed>) = 0 [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5285] <... openat resumed>) = 3 [pid 5284] <... openat resumed>) = 3 [pid 5283] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5282] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5279] +++ exited with 0 +++ [pid 5283] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5285] write(3, "1000", 4 [pid 5284] write(3, "1000", 4 [pid 5285] <... write resumed>) = 4 [pid 5285] close(3) = 0 [pid 5284] <... write resumed>) = 4 [pid 5285] write(1, "executing program\n", 18executing program [pid 5284] close(3 [pid 5285] <... write resumed>) = 18 [pid 5284] <... close resumed>) = 0 [pid 5283] <... bpf resumed>) = 7 [pid 5282] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5279, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 5285] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5284] write(1, "executing program\n", 18 [pid 5283] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5282] <... bpf resumed>) = 7 [pid 5285] <... bpf resumed>) = 3 [pid 5284] <... write resumed>) = 18 [pid 5283] <... bpf resumed>) = 8 [pid 5282] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5285] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5284] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5283] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5285] <... bpf resumed>) = 4 [pid 5284] <... bpf resumed>) = 3 [pid 5282] <... bpf resumed>) = 8 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5284] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5286 attached [pid 5285] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5283] <... ioctl resumed>) = 0 [pid 5282] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5283] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5286] set_robust_list(0x555582d82660, 24 [pid 5285] <... bpf resumed>) = 5 [pid 5284] <... bpf resumed>) = 4 [pid 5283] <... bpf resumed>) = 9 [pid 5282] <... ioctl resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5286 [pid 5286] <... set_robust_list resumed>) = 0 [pid 5285] perf_event_open( [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5285] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5284] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5283] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5282] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5286] <... prctl resumed>) = 0 [pid 5285] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5284] <... bpf resumed>) = 5 [pid 5283] <... bpf resumed>) = 10 [pid 5286] setpgid(0, 0 [pid 5285] <... bpf resumed>) = 7 [pid 5284] perf_event_open( [pid 5283] exit_group(0 [pid 5282] <... bpf resumed>) = 9 [pid 5286] <... setpgid resumed>) = 0 [pid 5285] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5284] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5284] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5283] <... exit_group resumed>) = ? [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5284] <... bpf resumed>) = 7 [pid 5282] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5286] <... openat resumed>) = 3 [pid 5285] <... bpf resumed>) = 8 [pid 5282] <... bpf resumed>) = 10 [pid 5286] write(3, "1000", 4 [pid 5284] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5286] <... write resumed>) = 4 [pid 5285] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5282] exit_group(0 [pid 5284] <... bpf resumed>) = 8 [pid 5286] close(3 [pid 5285] <... ioctl resumed>) = 0 [pid 5282] <... exit_group resumed>) = ? [pid 5284] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5286] <... close resumed>) = 0 [pid 5285] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5284] <... ioctl resumed>) = 0 [pid 5286] write(1, "executing program\n", 18executing program [pid 5284] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5286] <... write resumed>) = 18 [pid 5285] <... bpf resumed>) = 9 [pid 5283] +++ exited with 0 +++ [pid 5282] +++ exited with 0 +++ [pid 5286] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5284] <... bpf resumed>) = 9 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5285] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5284] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5286] <... bpf resumed>) = 3 [pid 5286] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5287 attached [pid 5287] set_robust_list(0x555582d82660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5287 [pid 5287] <... set_robust_list resumed>) = 0 [pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5287] setpgid(0, 0 [pid 5286] <... bpf resumed>) = 4 [pid 5285] <... bpf resumed>) = 10 [pid 5284] <... bpf resumed>) = 10 [pid 5287] <... setpgid resumed>) = 0 [pid 5284] exit_group(0 [pid 5285] exit_group(0 [pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5286] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5284] <... exit_group resumed>) = ? [pid 5287] <... openat resumed>) = 3 [pid 5286] <... bpf resumed>) = 5 [pid 5285] <... exit_group resumed>) = ? [pid 5286] perf_event_open( [pid 5287] write(3, "1000", 4 [pid 5286] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5287] <... write resumed>) = 4 [pid 5286] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5288 attached [pid 5287] close(3 [pid 5286] <... bpf resumed>) = 7 [pid 5287] <... close resumed>) = 0 [pid 5288] set_robust_list(0x555582d82660, 24 executing program [pid 5287] write(1, "executing program\n", 18 [pid 5286] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5288 [pid 5287] <... write resumed>) = 18 [pid 5287] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5286] <... bpf resumed>) = 8 [pid 5286] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5286] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5288] <... set_robust_list resumed>) = 0 [pid 5287] <... bpf resumed>) = 3 [pid 5286] <... bpf resumed>) = 9 [pid 5286] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5287] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5284] +++ exited with 0 +++ [pid 5288] <... prctl resumed>) = 0 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5284, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5288] setpgid(0, 0) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5287] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5289 attached [pid 5288] <... openat resumed>) = 3 [pid 5287] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5289] set_robust_list(0x555582d82660, 24 [pid 5288] write(3, "1000", 4 [pid 5287] <... bpf resumed>) = 5 [pid 5286] <... bpf resumed>) = 10 [pid 5285] +++ exited with 0 +++ [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5289 [pid 5288] <... write resumed>) = 4 [pid 5289] <... set_robust_list resumed>) = 0 [pid 5287] perf_event_open( [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5285, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5288] close(3 [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5286] exit_group(0 [pid 5287] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5289] <... prctl resumed>) = 0 [pid 5288] <... close resumed>) = 0 [pid 5287] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5286] <... exit_group resumed>) = ? [pid 5289] setpgid(0, 0executing program [pid 5288] write(1, "executing program\n", 18 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5288] <... write resumed>) = 18 [pid 5287] <... bpf resumed>) = 7 ./strace-static-x86_64: Process 5290 attached [pid 5289] <... setpgid resumed>) = 0 [pid 5288] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5287] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5288] <... bpf resumed>) = 3 [pid 5289] <... openat resumed>) = 3 [pid 5287] <... bpf resumed>) = 8 [pid 5290] set_robust_list(0x555582d82660, 24 [pid 5289] write(3, "1000", 4 [pid 5288] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5287] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5290 [pid 5290] <... set_robust_list resumed>) = 0 [pid 5289] <... write resumed>) = 4 [pid 5288] <... bpf resumed>) = 4 [pid 5290] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5289] close(3 [pid 5287] <... ioctl resumed>) = 0 [pid 5290] <... prctl resumed>) = 0 [pid 5289] <... close resumed>) = 0 [pid 5288] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5290] setpgid(0, 0 [pid 5289] write(1, "executing program\n", 18 [pid 5287] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5290] <... setpgid resumed>) = 0 [pid 5289] <... write resumed>) = 18 [pid 5289] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5287] <... bpf resumed>) = 9 [pid 5290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5288] <... bpf resumed>) = 5 [pid 5287] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5286] +++ exited with 0 +++ [pid 5288] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5286, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5290] <... openat resumed>) = 3 [pid 5289] <... bpf resumed>) = 3 [pid 5288] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5287] <... bpf resumed>) = 10 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5290] write(3, "1000", 4 [pid 5289] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5290] <... write resumed>) = 4 [pid 5288] <... bpf resumed>) = 7 [pid 5287] exit_group(0 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5288] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5287] <... exit_group resumed>) = ? [pid 5289] <... bpf resumed>) = 4 [pid 5290] close(3) = 0 executing program [pid 5290] write(1, "executing program\n", 18) = 18 [pid 5290] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5289] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5288] <... bpf resumed>) = 8 [pid 5290] <... bpf resumed>) = 3 [pid 5289] <... bpf resumed>) = 5 [pid 5287] +++ exited with 0 +++ [pid 5288] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5289] perf_event_open( [pid 5288] <... ioctl resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5289] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5289] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5290] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5289] <... bpf resumed>) = 7 [pid 5288] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5233] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5291 attached [pid 5289] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5291] set_robust_list(0x555582d82660, 24 [pid 5290] <... bpf resumed>) = 4 [pid 5288] <... bpf resumed>) = 9 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5291 [pid 5291] <... set_robust_list resumed>) = 0 [pid 5290] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5289] <... bpf resumed>) = 8 [pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5290] <... bpf resumed>) = 5 [pid 5289] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5288] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5291] <... prctl resumed>) = 0 [pid 5290] perf_event_open(./strace-static-x86_64: Process 5292 attached [pid 5291] setpgid(0, 0 [pid 5290] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5288] <... bpf resumed>) = 10 [pid 5292] set_robust_list(0x555582d82660, 24 [pid 5291] <... setpgid resumed>) = 0 [pid 5290] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5289] <... ioctl resumed>) = 0 [pid 5292] <... set_robust_list resumed>) = 0 [pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5290] <... bpf resumed>) = 7 [pid 5289] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5288] exit_group(0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5292 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5291] <... openat resumed>) = 3 [pid 5290] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5288] <... exit_group resumed>) = ? [pid 5292] <... prctl resumed>) = 0 [pid 5291] write(3, "1000", 4 [pid 5290] <... bpf resumed>) = 8 [pid 5289] <... bpf resumed>) = 9 [pid 5292] setpgid(0, 0) = 0 [pid 5291] <... write resumed>) = 4 [pid 5289] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5291] close(3 [pid 5290] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5288] +++ exited with 0 +++ [pid 5292] <... openat resumed>) = 3 [pid 5291] <... close resumed>) = 0 [pid 5290] <... ioctl resumed>) = 0 executing program [pid 5291] write(1, "executing program\n", 18 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5292] write(3, "1000", 4 [pid 5291] <... write resumed>) = 18 [pid 5290] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5292] <... write resumed>) = 4 [pid 5291] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5289] <... bpf resumed>) = 10 [pid 5292] close(3 [pid 5290] <... bpf resumed>) = 9 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5292] <... close resumed>) = 0 [pid 5291] <... bpf resumed>) = 3 [pid 5289] exit_group(0executing program [pid 5292] write(1, "executing program\n", 18 [pid 5291] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5290] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5289] <... exit_group resumed>) = ? [pid 5292] <... write resumed>) = 18 [pid 5292] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5291] <... bpf resumed>) = 4 [pid 5290] <... bpf resumed>) = 10 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5291] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5290] exit_group(0 [pid 5291] <... bpf resumed>) = 5 [pid 5290] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5293 attached [pid 5291] perf_event_open( [pid 5293] set_robust_list(0x555582d82660, 24) = 0 [pid 5291] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5292] <... bpf resumed>) = 3 [pid 5293] <... prctl resumed>) = 0 [pid 5293] setpgid(0, 0 [pid 5292] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5291] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5289] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5293 [pid 5293] <... setpgid resumed>) = 0 [pid 5291] <... bpf resumed>) = 7 [pid 5291] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5292] <... bpf resumed>) = 4 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5291] <... bpf resumed>) = 8 [pid 5291] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5293] <... openat resumed>) = 3 [pid 5292] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5291] <... ioctl resumed>) = 0 [pid 5290] +++ exited with 0 +++ [pid 5235] <... restart_syscall resumed>) = 0 [pid 5293] write(3, "1000", 4 [pid 5292] <... bpf resumed>) = 5 [pid 5291] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5290, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5293] <... write resumed>) = 4 [pid 5292] perf_event_open( [pid 5291] <... bpf resumed>) = 9 [pid 5293] close(3 [pid 5292] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5291] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5293] <... close resumed>) = 0 [pid 5292] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5293] write(1, "executing program\n", 18 [pid 5291] <... bpf resumed>) = 10 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5292] <... bpf resumed>) = 7 executing program ./strace-static-x86_64: Process 5295 attached ./strace-static-x86_64: Process 5294 attached [pid 5293] <... write resumed>) = 18 [pid 5292] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5291] exit_group(0 [pid 5294] set_robust_list(0x555582d82660, 24 [pid 5293] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5291] <... exit_group resumed>) = ? [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5294 [pid 5292] <... bpf resumed>) = 8 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5295 [pid 5294] <... set_robust_list resumed>) = 0 [pid 5295] set_robust_list(0x555582d82660, 24) = 0 [pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5293] <... bpf resumed>) = 3 [pid 5292] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5294] <... prctl resumed>) = 0 [pid 5295] <... prctl resumed>) = 0 [pid 5295] setpgid(0, 0 [pid 5293] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5295] <... setpgid resumed>) = 0 [pid 5294] setpgid(0, 0 [pid 5292] <... ioctl resumed>) = 0 [pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5292] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5295] <... openat resumed>) = 3 [pid 5294] <... setpgid resumed>) = 0 [pid 5293] <... bpf resumed>) = 4 [pid 5293] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5293] perf_event_open( [pid 5292] <... bpf resumed>) = 9 [pid 5291] +++ exited with 0 +++ [pid 5293] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5295] write(3, "1000", 4 [pid 5294] <... openat resumed>) = 3 [pid 5293] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5292] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5295] <... write resumed>) = 4 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5293] <... bpf resumed>) = 7 executing program [pid 5295] close(3) = 0 [pid 5295] write(1, "executing program\n", 18 [pid 5294] write(3, "1000", 4 [pid 5295] <... write resumed>) = 18 [pid 5294] <... write resumed>) = 4 [pid 5295] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5294] close(3 [pid 5293] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5292] <... bpf resumed>) = 10 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5294] <... close resumed>) = 0 ./strace-static-x86_64: Process 5296 attached [pid 5295] <... bpf resumed>) = 3 [pid 5294] write(1, "executing program\n", 18 [pid 5293] <... bpf resumed>) = 8 executing program [pid 5296] set_robust_list(0x555582d82660, 24 [pid 5295] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5294] <... write resumed>) = 18 [pid 5293] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5292] exit_group(0 [pid 5296] <... set_robust_list resumed>) = 0 [pid 5294] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5292] <... exit_group resumed>) = ? [pid 5296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5295] <... bpf resumed>) = 4 [pid 5294] <... bpf resumed>) = 3 [pid 5293] <... ioctl resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5296 [pid 5293] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5296] <... prctl resumed>) = 0 [pid 5295] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5294] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5296] setpgid(0, 0 [pid 5293] <... bpf resumed>) = 9 [pid 5296] <... setpgid resumed>) = 0 [pid 5294] <... bpf resumed>) = 4 [pid 5293] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5294] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5296] <... openat resumed>) = 3 [pid 5296] write(3, "1000", 4) = 4 [pid 5296] close(3) = 0 executing program [pid 5296] write(1, "executing program\n", 18) = 18 [pid 5296] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5296] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5292] +++ exited with 0 +++ [pid 5293] <... bpf resumed>) = 10 [pid 5295] <... bpf resumed>) = 5 [pid 5296] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5294] <... bpf resumed>) = 5 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5292, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5295] perf_event_open( [pid 5296] <... bpf resumed>) = 5 [pid 5294] perf_event_open( [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5296] perf_event_open( [pid 5293] exit_group(0 [pid 5295] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5294] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5293] <... exit_group resumed>) = ? [pid 5233] <... restart_syscall resumed>) = 0 [pid 5296] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5295] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5294] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5293] +++ exited with 0 +++ [pid 5296] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5295] <... bpf resumed>) = 7 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5294] <... bpf resumed>) = 7 [pid 5295] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5296] <... bpf resumed>) = 7 [pid 5294] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5296] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5295] <... bpf resumed>) = 8 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5294] <... bpf resumed>) = 8 [pid 5295] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5297 attached [pid 5294] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5295] <... ioctl resumed>) = 0 [pid 5295] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128./strace-static-x86_64: Process 5298 attached [pid 5297] set_robust_list(0x555582d82660, 24 [pid 5296] <... bpf resumed>) = 8 [pid 5294] <... ioctl resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5297 [pid 5298] set_robust_list(0x555582d82660, 24 [pid 5297] <... set_robust_list resumed>) = 0 [pid 5294] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5298] <... set_robust_list resumed>) = 0 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5296] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5294] <... bpf resumed>) = 9 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5298 [pid 5296] <... ioctl resumed>) = 0 [pid 5298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5296] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5295] <... bpf resumed>) = 9 [pid 5298] <... prctl resumed>) = 0 [pid 5297] <... prctl resumed>) = 0 [pid 5294] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5298] setpgid(0, 0 [pid 5297] setpgid(0, 0 [pid 5296] <... bpf resumed>) = 9 [pid 5295] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5294] <... bpf resumed>) = 10 [pid 5298] <... setpgid resumed>) = 0 [pid 5297] <... setpgid resumed>) = 0 [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5296] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5295] <... bpf resumed>) = 10 [pid 5294] exit_group(0 [pid 5298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5297] <... openat resumed>) = 3 [pid 5296] <... bpf resumed>) = 10 [pid 5295] exit_group(0 [pid 5294] <... exit_group resumed>) = ? [pid 5298] <... openat resumed>) = 3 [pid 5295] <... exit_group resumed>) = ? [pid 5298] write(3, "1000", 4 [pid 5297] write(3, "1000", 4 [pid 5298] <... write resumed>) = 4 [pid 5296] exit_group(0 [pid 5298] close(3 [pid 5296] <... exit_group resumed>) = ? [pid 5298] <... close resumed>) = 0 [pid 5297] <... write resumed>) = 4 executing program [pid 5298] write(1, "executing program\n", 18 [pid 5297] close(3executing program [pid 5298] <... write resumed>) = 18 [pid 5297] <... close resumed>) = 0 [pid 5298] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5297] write(1, "executing program\n", 18) = 18 [pid 5297] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5298] <... bpf resumed>) = 3 [pid 5297] <... bpf resumed>) = 3 [pid 5295] +++ exited with 0 +++ [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5295, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5298] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5297] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5298] <... bpf resumed>) = 4 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5298] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5297] <... bpf resumed>) = 4 [pid 5294] +++ exited with 0 +++ ./strace-static-x86_64: Process 5299 attached [pid 5298] <... bpf resumed>) = 5 [pid 5297] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5298] perf_event_open( [pid 5297] perf_event_open( [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5299 [pid 5299] set_robust_list(0x555582d82660, 24 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5299] <... set_robust_list resumed>) = 0 [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5298] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5297] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5296] +++ exited with 0 +++ [pid 5299] setpgid(0, 0) = 0 [pid 5298] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5297] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5296, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5298] <... bpf resumed>) = 7 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5297] <... bpf resumed>) = 7 [pid 5299] <... openat resumed>) = 3 [pid 5298] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5297] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5300 attached [pid 5299] write(3, "1000", 4 [pid 5298] <... bpf resumed>) = 8 [pid 5298] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5297] <... bpf resumed>) = 8 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5300] set_robust_list(0x555582d82660, 24 [pid 5299] <... write resumed>) = 4 [pid 5298] <... ioctl resumed>) = 0 [pid 5297] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5300 ./strace-static-x86_64: Process 5301 attached [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5301 [pid 5301] set_robust_list(0x555582d82660, 24 [pid 5300] <... set_robust_list resumed>) = 0 [pid 5299] close(3 [pid 5298] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5297] <... ioctl resumed>) = 0 [pid 5301] <... set_robust_list resumed>) = 0 [pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5299] <... close resumed>) = 0 [pid 5297] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5300] <... prctl resumed>) = 0 [pid 5301] <... prctl resumed>) = 0 [pid 5300] setpgid(0, 0 executing program [pid 5299] write(1, "executing program\n", 18 [pid 5298] <... bpf resumed>) = 9 [pid 5297] <... bpf resumed>) = 9 [pid 5301] setpgid(0, 0 [pid 5300] <... setpgid resumed>) = 0 [pid 5299] <... write resumed>) = 18 [pid 5301] <... setpgid resumed>) = 0 [pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5299] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5298] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5300] <... openat resumed>) = 3 [pid 5297] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5301] <... openat resumed>) = 3 [pid 5300] write(3, "1000", 4 [pid 5301] write(3, "1000", 4 [pid 5300] <... write resumed>) = 4 [pid 5301] <... write resumed>) = 4 [pid 5300] close(3 [pid 5298] <... bpf resumed>) = 10 [pid 5297] <... bpf resumed>) = 10 [pid 5299] <... bpf resumed>) = 3 [pid 5301] close(3 [pid 5300] <... close resumed>) = 0 [pid 5299] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5297] exit_group(0 [pid 5301] <... close resumed>) = 0 [pid 5300] write(1, "executing program\n", 18executing program [pid 5298] exit_group(0executing program [pid 5301] write(1, "executing program\n", 18 [pid 5300] <... write resumed>) = 18 [pid 5299] <... bpf resumed>) = 4 [pid 5298] <... exit_group resumed>) = ? [pid 5297] <... exit_group resumed>) = ? [pid 5301] <... write resumed>) = 18 [pid 5300] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5301] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5300] <... bpf resumed>) = 3 [pid 5299] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5300] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5301] <... bpf resumed>) = 3 [pid 5300] <... bpf resumed>) = 4 [pid 5299] <... bpf resumed>) = 5 [pid 5297] +++ exited with 0 +++ [pid 5301] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5300] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5299] perf_event_open( [pid 5301] <... bpf resumed>) = 4 [pid 5300] <... bpf resumed>) = 5 [pid 5301] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5300] perf_event_open( [pid 5301] <... bpf resumed>) = 5 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5301] perf_event_open(./strace-static-x86_64: Process 5302 attached [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5302 [pid 5302] set_robust_list(0x555582d82660, 24) = 0 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5301] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5300] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5299] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5298] +++ exited with 0 +++ [pid 5302] setpgid(0, 0 [pid 5301] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5300] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5299] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5302] <... setpgid resumed>) = 0 [pid 5301] <... bpf resumed>) = 7 [pid 5300] <... bpf resumed>) = 7 [pid 5300] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5301] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5299] <... bpf resumed>) = 7 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5298, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5302] <... openat resumed>) = 3 [pid 5300] <... bpf resumed>) = 8 [pid 5301] <... bpf resumed>) = 8 [pid 5300] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5302] write(3, "1000", 4 [pid 5301] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5299] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5302] <... write resumed>) = 4 [pid 5302] close(3 [pid 5301] <... ioctl resumed>) = 0 [pid 5300] <... ioctl resumed>) = 0 [pid 5299] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5303 attached [pid 5302] <... close resumed>) = 0 [pid 5301] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5300] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5303] set_robust_list(0x555582d82660, 24 executing program [pid 5302] write(1, "executing program\n", 18 [pid 5301] <... bpf resumed>) = 9 [pid 5300] <... bpf resumed>) = 9 [pid 5299] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5303 [pid 5303] <... set_robust_list resumed>) = 0 [pid 5302] <... write resumed>) = 18 [pid 5302] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5299] <... ioctl resumed>) = 0 [pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5301] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5300] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5302] <... bpf resumed>) = 3 [pid 5300] <... bpf resumed>) = 10 [pid 5299] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5303] <... prctl resumed>) = 0 [pid 5302] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5301] <... bpf resumed>) = 10 [pid 5300] exit_group(0 [pid 5303] setpgid(0, 0 [pid 5299] <... bpf resumed>) = 9 [pid 5301] exit_group(0 [pid 5300] <... exit_group resumed>) = ? [pid 5303] <... setpgid resumed>) = 0 [pid 5302] <... bpf resumed>) = 4 [pid 5301] <... exit_group resumed>) = ? [pid 5299] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5299] <... bpf resumed>) = 10 [pid 5302] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5303] <... openat resumed>) = 3 [pid 5303] write(3, "1000", 4 [pid 5299] exit_group(0 [pid 5303] <... write resumed>) = 4 [pid 5299] <... exit_group resumed>) = ? [pid 5303] close(3 [pid 5302] <... bpf resumed>) = 5 [pid 5301] +++ exited with 0 +++ [pid 5300] +++ exited with 0 +++ [pid 5303] <... close resumed>) = 0 [pid 5302] perf_event_open(executing program [pid 5303] write(1, "executing program\n", 18 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5303] <... write resumed>) = 18 [pid 5302] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5303] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5302] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5304 attached [pid 5303] <... bpf resumed>) = 3 [pid 5304] set_robust_list(0x555582d82660, 24 [pid 5303] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5302] <... bpf resumed>) = 7 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5304 [pid 5304] <... set_robust_list resumed>) = 0 [pid 5302] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5302] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5305 attached [pid 5305] set_robust_list(0x555582d82660, 24) = 0 [pid 5304] <... prctl resumed>) = 0 [pid 5303] <... bpf resumed>) = 4 [pid 5302] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5305 [pid 5305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5304] setpgid(0, 0 [pid 5305] <... prctl resumed>) = 0 [pid 5304] <... setpgid resumed>) = 0 [pid 5303] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5302] <... ioctl resumed>) = 0 [pid 5305] setpgid(0, 0 [pid 5304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5302] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5305] <... setpgid resumed>) = 0 [pid 5304] <... openat resumed>) = 3 [pid 5303] <... bpf resumed>) = 5 [pid 5299] +++ exited with 0 +++ [pid 5303] perf_event_open( [pid 5302] <... bpf resumed>) = 9 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5304] write(3, "1000", 4 [pid 5303] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5304] <... write resumed>) = 4 [pid 5304] close(3 [pid 5305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5304] <... close resumed>) = 0 [pid 5303] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5305] <... openat resumed>) = 3 [pid 5302] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5305] write(3, "1000", 4) = 4 [pid 5304] write(1, "executing program\n", 18executing program [pid 5303] <... bpf resumed>) = 7 [pid 5302] <... bpf resumed>) = 10 [pid 5305] close(3 [pid 5304] <... write resumed>) = 18 [pid 5303] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5305] <... close resumed>) = 0 [pid 5304] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5302] exit_group(0executing program [pid 5305] write(1, "executing program\n", 18 [pid 5303] <... bpf resumed>) = 8 [pid 5302] <... exit_group resumed>) = ? [pid 5305] <... write resumed>) = 18 [pid 5304] <... bpf resumed>) = 3 [pid 5303] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5304] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5303] <... ioctl resumed>) = 0 [pid 5305] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5304] <... bpf resumed>) = 4 [pid 5303] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 9 [pid 5303] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5304] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5306 attached [pid 5305] <... bpf resumed>) = 3 [pid 5306] set_robust_list(0x555582d82660, 24) = 0 [pid 5305] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5306 [pid 5306] <... prctl resumed>) = 0 [pid 5304] <... bpf resumed>) = 5 [pid 5303] <... bpf resumed>) = 10 [pid 5304] perf_event_open( [pid 5306] setpgid(0, 0 [pid 5302] +++ exited with 0 +++ [pid 5306] <... setpgid resumed>) = 0 [pid 5305] <... bpf resumed>) = 4 [pid 5304] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5303] exit_group(0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5302, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5305] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5304] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5303] <... exit_group resumed>) = ? [pid 5306] <... openat resumed>) = 3 [pid 5305] <... bpf resumed>) = 5 [pid 5304] <... bpf resumed>) = 7 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5306] write(3, "1000", 4 [pid 5305] perf_event_open( [pid 5233] <... restart_syscall resumed>) = 0 [pid 5306] <... write resumed>) = 4 [pid 5305] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5304] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5306] close(3 [pid 5305] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5306] <... close resumed>) = 0 [pid 5304] <... bpf resumed>) = 8 [pid 5303] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5306] write(1, "executing program\n", 18 [pid 5305] <... bpf resumed>) = 7 [pid 5304] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5306] <... write resumed>) = 18 [pid 5304] <... ioctl resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- ./strace-static-x86_64: Process 5307 attached [pid 5306] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5305] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5304] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5307] set_robust_list(0x555582d82660, 24 [pid 5305] <... bpf resumed>) = 8 [pid 5304] <... bpf resumed>) = 9 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5307 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5307] <... set_robust_list resumed>) = 0 [pid 5306] <... bpf resumed>) = 3 [pid 5305] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5304] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5305] <... ioctl resumed>) = 0 [pid 5304] <... bpf resumed>) = 10 [pid 5307] <... prctl resumed>) = 0 [pid 5307] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5308 attached [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5305] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5304] exit_group(0 [pid 5308] set_robust_list(0x555582d82660, 24 [pid 5306] <... bpf resumed>) = 4 [pid 5308] <... set_robust_list resumed>) = 0 [pid 5306] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5305] <... bpf resumed>) = 9 [pid 5304] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5308 [pid 5308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5307] <... openat resumed>) = 3 [pid 5306] <... bpf resumed>) = 5 [pid 5307] write(3, "1000", 4) = 4 [pid 5307] close(3) = 0 executing program [pid 5307] write(1, "executing program\n", 18) = 18 [pid 5307] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5306] perf_event_open( [pid 5308] <... prctl resumed>) = 0 [pid 5307] <... bpf resumed>) = 3 [pid 5305] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5304] +++ exited with 0 +++ [pid 5308] setpgid(0, 0) = 0 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5304, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5305] <... bpf resumed>) = 10 [pid 5307] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5306] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5305] exit_group(0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5308] <... openat resumed>) = 3 [pid 5307] <... bpf resumed>) = 4 [pid 5306] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5305] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5309 attached [pid 5308] write(3, "1000", 4 [pid 5306] <... bpf resumed>) = 7 [pid 5307] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5309] set_robust_list(0x555582d82660, 24 [pid 5308] <... write resumed>) = 4 [pid 5307] <... bpf resumed>) = 5 [pid 5306] <... bpf resumed>) = 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5309 [pid 5307] perf_event_open( [pid 5309] <... set_robust_list resumed>) = 0 [pid 5308] close(3 [pid 5307] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5306] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5307] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5306] <... ioctl resumed>) = 0 [pid 5309] <... prctl resumed>) = 0 [pid 5308] <... close resumed>) = 0 [pid 5307] <... bpf resumed>) = 7 [pid 5305] +++ exited with 0 +++ [pid 5306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128executing program [pid 5309] setpgid(0, 0 [pid 5308] write(1, "executing program\n", 18 [pid 5307] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5309] <... setpgid resumed>) = 0 [pid 5308] <... write resumed>) = 18 [pid 5239] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5308] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5306] <... bpf resumed>) = 9 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5307] <... bpf resumed>) = 8 [pid 5306] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5310 attached [pid 5309] write(3, "1000", 4 [pid 5308] <... bpf resumed>) = 3 [pid 5307] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5308] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5310] set_robust_list(0x555582d82660, 24 [pid 5307] <... ioctl resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5310 [pid 5309] <... write resumed>) = 4 [pid 5307] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5306] <... bpf resumed>) = 10 [pid 5310] <... set_robust_list resumed>) = 0 [pid 5309] close(3) = 0 [pid 5308] <... bpf resumed>) = 4 [pid 5307] <... bpf resumed>) = 9 [pid 5310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] write(1, "executing program\n", 18executing program [pid 5308] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5310] <... prctl resumed>) = 0 [pid 5309] <... write resumed>) = 18 [pid 5308] <... bpf resumed>) = 5 [pid 5307] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5306] exit_group(0 [pid 5310] setpgid(0, 0 [pid 5309] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5307] <... bpf resumed>) = 10 [pid 5306] <... exit_group resumed>) = ? [pid 5310] <... setpgid resumed>) = 0 [pid 5308] perf_event_open( [pid 5309] <... bpf resumed>) = 3 [pid 5309] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5308] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5307] exit_group(0 [pid 5309] <... bpf resumed>) = 4 [pid 5310] <... openat resumed>) = 3 [pid 5308] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5307] <... exit_group resumed>) = ? [pid 5309] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5310] write(3, "1000", 4) = 4 [pid 5310] close(3 [pid 5309] <... bpf resumed>) = 5 [pid 5308] <... bpf resumed>) = 7 [pid 5307] +++ exited with 0 +++ [pid 5306] +++ exited with 0 +++ [pid 5310] <... close resumed>) = 0 [pid 5309] perf_event_open(executing program [pid 5310] write(1, "executing program\n", 18 [pid 5309] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5308] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5310] <... write resumed>) = 18 [pid 5309] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5306, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5308] <... bpf resumed>) = 8 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5311 attached [pid 5310] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5309] <... bpf resumed>) = 7 [pid 5308] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5311] set_robust_list(0x555582d82660, 24 [pid 5310] <... bpf resumed>) = 3 [pid 5309] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5308] <... ioctl resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5311 [pid 5311] <... set_robust_list resumed>) = 0 [pid 5310] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5309] <... bpf resumed>) = 8 [pid 5308] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5309] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5311] <... prctl resumed>) = 0 [pid 5308] <... bpf resumed>) = 9 [pid 5311] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5312 attached [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5310] <... bpf resumed>) = 4 [pid 5309] <... ioctl resumed>) = 0 [pid 5308] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5310] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5312] set_robust_list(0x555582d82660, 24 [pid 5309] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5312] <... set_robust_list resumed>) = 0 [pid 5311] <... openat resumed>) = 3 [pid 5310] <... bpf resumed>) = 5 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5312 [pid 5310] perf_event_open( [pid 5311] write(3, "1000", 4executing program ) = 4 [pid 5311] close(3 [pid 5312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5311] <... close resumed>) = 0 [pid 5310] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5311] write(1, "executing program\n", 18) = 18 [pid 5311] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5309] <... bpf resumed>) = 9 [pid 5312] <... prctl resumed>) = 0 [pid 5308] <... bpf resumed>) = 10 [pid 5310] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5312] setpgid(0, 0) = 0 [pid 5310] <... bpf resumed>) = 7 [pid 5309] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5308] exit_group(0 [pid 5312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5309] <... bpf resumed>) = 10 [pid 5308] <... exit_group resumed>) = ? [pid 5312] <... openat resumed>) = 3 [pid 5311] <... bpf resumed>) = 3 [pid 5310] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5312] write(3, "1000", 4 [pid 5311] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5309] exit_group(0 [pid 5312] <... write resumed>) = 4 [pid 5310] <... bpf resumed>) = 8 [pid 5309] <... exit_group resumed>) = ? [pid 5312] close(3) = 0 [pid 5312] write(1, "executing program\n", 18 [pid 5311] <... bpf resumed>) = 4 executing program [pid 5312] <... write resumed>) = 18 [pid 5311] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5312] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5310] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5308] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5308, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5310] <... ioctl resumed>) = 0 [pid 5312] <... bpf resumed>) = 3 [pid 5310] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5312] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5310] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5313 attached [pid 5310] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5313] set_robust_list(0x555582d82660, 24) = 0 [pid 5312] <... bpf resumed>) = 4 [pid 5311] <... bpf resumed>) = 5 [pid 5310] <... bpf resumed>) = 10 [pid 5309] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5313 [pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5311] perf_event_open( [pid 5313] <... prctl resumed>) = 0 [pid 5313] setpgid(0, 0 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5313] <... setpgid resumed>) = 0 [pid 5312] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5311] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5310] exit_group(0 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5312] <... bpf resumed>) = 5 [pid 5311] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5313] <... openat resumed>) = 3 [pid 5312] perf_event_open( [pid 5311] <... bpf resumed>) = 7 [pid 5310] <... exit_group resumed>) = ? [pid 5311] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5312] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5311] <... bpf resumed>) = 8 [pid 5313] write(3, "1000", 4 [pid 5312] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5313] <... write resumed>) = 4 [pid 5313] close(3 [pid 5312] <... bpf resumed>) = 7 [pid 5311] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8executing program [pid 5313] <... close resumed>) = 0 [pid 5313] write(1, "executing program\n", 18 [pid 5312] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5311] <... ioctl resumed>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5313] <... write resumed>) = 18 [pid 5311] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5310] +++ exited with 0 +++ [pid 5313] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5311] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5314 attached [pid 5314] set_robust_list(0x555582d82660, 24 [pid 5312] <... bpf resumed>) = 8 [pid 5311] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5310, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5314] <... set_robust_list resumed>) = 0 [pid 5314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5313] <... bpf resumed>) = 3 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5313] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5314] <... prctl resumed>) = 0 [pid 5312] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5314 [pid 5314] setpgid(0, 0) = 0 [pid 5312] <... ioctl resumed>) = 0 [pid 5312] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5313] <... bpf resumed>) = 4 [pid 5314] <... openat resumed>) = 3 [pid 5312] <... bpf resumed>) = 9 [pid 5314] write(3, "1000", 4 [pid 5312] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5313] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5314] <... write resumed>) = 4 [pid 5314] close(3) = 0 [pid 5314] write(1, "executing program\n", 18) = 18 executing program [pid 5314] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5315 attached [pid 5315] set_robust_list(0x555582d82660, 24) = 0 [pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5311] <... bpf resumed>) = 10 [pid 5315] <... prctl resumed>) = 0 [pid 5314] <... bpf resumed>) = 3 [pid 5315] setpgid(0, 0 [pid 5313] <... bpf resumed>) = 5 [pid 5312] <... bpf resumed>) = 10 [pid 5311] exit_group(0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5315 [pid 5315] <... setpgid resumed>) = 0 [pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5314] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5313] perf_event_open( [pid 5312] exit_group(0 [pid 5311] <... exit_group resumed>) = ? [pid 5315] <... openat resumed>) = 3 [pid 5315] write(3, "1000", 4 [pid 5313] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5312] <... exit_group resumed>) = ? [pid 5315] <... write resumed>) = 4 [pid 5314] <... bpf resumed>) = 4 [pid 5313] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5315] close(3 [pid 5314] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5313] <... bpf resumed>) = 7 [pid 5315] <... close resumed>) = 0 [pid 5313] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144executing program [pid 5315] write(1, "executing program\n", 18) = 18 [pid 5315] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5313] <... bpf resumed>) = 8 [pid 5315] <... bpf resumed>) = 3 [pid 5313] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5315] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5313] <... ioctl resumed>) = 0 [pid 5313] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5315] <... bpf resumed>) = 4 [pid 5315] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5314] <... bpf resumed>) = 5 [pid 5313] <... bpf resumed>) = 9 [pid 5312] +++ exited with 0 +++ [pid 5311] +++ exited with 0 +++ [pid 5315] <... bpf resumed>) = 5 [pid 5314] perf_event_open( [pid 5315] perf_event_open( [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5315] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5314] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5313] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5315] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5314] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5313] <... bpf resumed>) = 10 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5316 attached [pid 5315] <... bpf resumed>) = 7 [pid 5314] <... bpf resumed>) = 7 [pid 5313] exit_group(0 [pid 5316] set_robust_list(0x555582d82660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5316 [pid 5316] <... set_robust_list resumed>) = 0 [pid 5314] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5313] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5317 attached [pid 5316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5315] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5314] <... bpf resumed>) = 8 [pid 5317] set_robust_list(0x555582d82660, 24 [pid 5316] <... prctl resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5317 [pid 5317] <... set_robust_list resumed>) = 0 [pid 5316] setpgid(0, 0 [pid 5315] <... bpf resumed>) = 8 [pid 5314] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5316] <... setpgid resumed>) = 0 [pid 5313] +++ exited with 0 +++ [pid 5317] <... prctl resumed>) = 0 [pid 5316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5315] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5314] <... ioctl resumed>) = 0 [pid 5314] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5317] setpgid(0, 0 [pid 5316] <... openat resumed>) = 3 [pid 5315] <... ioctl resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5317] <... setpgid resumed>) = 0 [pid 5316] write(3, "1000", 4 [pid 5315] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5314] <... bpf resumed>) = 9 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5316] <... write resumed>) = 4 [pid 5314] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5315] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5318 attached [pid 5317] <... openat resumed>) = 3 [pid 5316] close(3 [pid 5315] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5317] write(3, "1000", 4 [pid 5316] <... close resumed>) = 0 [pid 5318] set_robust_list(0x555582d82660, 24executing program [pid 5317] <... write resumed>) = 4 [pid 5316] write(1, "executing program\n", 18 [pid 5318] <... set_robust_list resumed>) = 0 [pid 5316] <... write resumed>) = 18 [pid 5318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5317] close(3 [pid 5316] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5318 executing program [pid 5318] <... prctl resumed>) = 0 [pid 5317] <... close resumed>) = 0 [pid 5315] <... bpf resumed>) = 10 [pid 5314] <... bpf resumed>) = 10 [pid 5317] write(1, "executing program\n", 18) = 18 [pid 5318] setpgid(0, 0 [pid 5317] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5316] <... bpf resumed>) = 3 [pid 5315] exit_group(0 [pid 5314] exit_group(0 [pid 5318] <... setpgid resumed>) = 0 [pid 5316] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5315] <... exit_group resumed>) = ? [pid 5318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5317] <... bpf resumed>) = 3 [pid 5314] <... exit_group resumed>) = ? [pid 5318] <... openat resumed>) = 3 [pid 5317] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5316] <... bpf resumed>) = 4 [pid 5315] +++ exited with 0 +++ [pid 5318] write(3, "1000", 4 [pid 5317] <... bpf resumed>) = 4 [pid 5316] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 5317] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5318] <... write resumed>) = 4 [pid 5318] close(3 [pid 5316] <... bpf resumed>) = 5 [pid 5318] <... close resumed>) = 0 [pid 5318] write(1, "executing program\n", 18 [pid 5316] perf_event_open( [pid 5318] <... write resumed>) = 18 ./strace-static-x86_64: Process 5319 attached [pid 5318] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5319] set_robust_list(0x555582d82660, 24 [pid 5318] <... bpf resumed>) = 3 [pid 5317] <... bpf resumed>) = 5 [pid 5319] <... set_robust_list resumed>) = 0 [pid 5317] perf_event_open( [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5318] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5317] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5316] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5314] +++ exited with 0 +++ [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5319 [pid 5319] <... prctl resumed>) = 0 [pid 5317] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5314, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5319] setpgid(0, 0 [pid 5317] <... bpf resumed>) = 7 [pid 5318] <... bpf resumed>) = 4 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5316] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5319] <... setpgid resumed>) = 0 [pid 5318] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5317] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5318] <... bpf resumed>) = 5 [pid 5316] <... bpf resumed>) = 7 [pid 5318] perf_event_open( [pid 5319] <... openat resumed>) = 3 [pid 5318] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5317] <... bpf resumed>) = 8 [pid 5316] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5319] write(3, "1000", 4 [pid 5318] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5317] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5319] <... write resumed>) = 4 [pid 5319] close(3) = 0 executing program [pid 5318] <... bpf resumed>) = 7 [pid 5317] <... ioctl resumed>) = 0 [pid 5319] write(1, "executing program\n", 18 [pid 5318] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5317] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5319] <... write resumed>) = 18 [pid 5316] <... bpf resumed>) = 8 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5319] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5318] <... bpf resumed>) = 8 [pid 5317] <... bpf resumed>) = 9 [pid 5316] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5319] <... bpf resumed>) = 3 [pid 5318] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5317] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5316] <... ioctl resumed>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5316] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5319] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5318] <... ioctl resumed>) = 0 [pid 5317] <... bpf resumed>) = 10 [pid 5318] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5317] exit_group(0 [pid 5316] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5320 attached [pid 5319] <... bpf resumed>) = 4 [pid 5320] set_robust_list(0x555582d82660, 24 [pid 5317] <... exit_group resumed>) = ? [pid 5316] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5320 [pid 5320] <... set_robust_list resumed>) = 0 [pid 5319] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5318] <... bpf resumed>) = 9 [pid 5320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5318] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5320] setpgid(0, 0) = 0 [pid 5320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5320] write(3, "1000", 4) = 4 [pid 5320] close(3) = 0 [pid 5320] write(1, "executing program\n", 18executing program ) = 18 [pid 5320] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5319] <... bpf resumed>) = 5 [pid 5318] <... bpf resumed>) = 10 [pid 5317] +++ exited with 0 +++ [pid 5316] <... bpf resumed>) = 10 [pid 5319] perf_event_open( [pid 5318] exit_group(0 [pid 5316] exit_group(0 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5320] <... bpf resumed>) = 3 [pid 5319] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5318] <... exit_group resumed>) = ? [pid 5316] <... exit_group resumed>) = ? [pid 5320] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5319] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5320] <... bpf resumed>) = 4 [pid 5319] <... bpf resumed>) = 7 [pid 5319] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5320] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5316] +++ exited with 0 +++ [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5319] <... bpf resumed>) = 8 [pid 5319] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5316, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5321 attached [pid 5319] <... ioctl resumed>) = 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5321] set_robust_list(0x555582d82660, 24 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5321 [pid 5321] <... set_robust_list resumed>) = 0 [pid 5319] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5319] <... bpf resumed>) = 9 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5321] setpgid(0, 0) = 0 [pid 5319] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5321] write(3, "1000", 4) = 4 [pid 5321] close(3) = 0 ./strace-static-x86_64: Process 5322 attached [pid 5321] write(1, "executing program\n", 18 [pid 5318] +++ exited with 0 +++ executing program [pid 5322] set_robust_list(0x555582d82660, 24 [pid 5321] <... write resumed>) = 18 [pid 5320] <... bpf resumed>) = 5 [pid 5319] <... bpf resumed>) = 10 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5322 [pid 5322] <... set_robust_list resumed>) = 0 [pid 5321] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5320] perf_event_open( [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5318, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5320] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5319] exit_group(0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5322] <... prctl resumed>) = 0 [pid 5320] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5322] setpgid(0, 0 [pid 5321] <... bpf resumed>) = 3 [pid 5320] <... bpf resumed>) = 7 [pid 5319] <... exit_group resumed>) = ? [pid 5232] <... restart_syscall resumed>) = 0 [pid 5322] <... setpgid resumed>) = 0 [pid 5322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5321] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5320] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5322] write(3, "1000", 4 [pid 5320] <... bpf resumed>) = 8 [pid 5322] <... write resumed>) = 4 [pid 5321] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5322] close(3 [pid 5321] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5320] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5322] <... close resumed>) = 0 [pid 5322] write(1, "executing program\n", 18executing program [pid 5320] <... ioctl resumed>) = 0 [pid 5322] <... write resumed>) = 18 [pid 5320] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5322] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5323 attached [pid 5320] <... bpf resumed>) = 9 [pid 5323] set_robust_list(0x555582d82660, 24 [pid 5322] <... bpf resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5323 [pid 5320] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5323] <... set_robust_list resumed>) = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5323] setpgid(0, 0) = 0 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5322] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5323] <... openat resumed>) = 3 [pid 5323] write(3, "1000", 4) = 4 [pid 5323] close(3 [pid 5322] <... bpf resumed>) = 4 [pid 5323] <... close resumed>) = 0 [pid 5322] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5321] <... bpf resumed>) = 5 [pid 5320] <... bpf resumed>) = 10 [pid 5319] +++ exited with 0 +++ [pid 5323] write(1, "executing program\n", 18executing program [pid 5322] <... bpf resumed>) = 5 [pid 5323] <... write resumed>) = 18 [pid 5321] perf_event_open( [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5323] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5322] perf_event_open( [pid 5321] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5320] exit_group(0) = ? [pid 5323] <... bpf resumed>) = 3 [pid 5322] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5321] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5322] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5323] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5322] <... bpf resumed>) = 7 [pid 5321] <... bpf resumed>) = 7 [pid 5322] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5320] +++ exited with 0 +++ [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5324 attached [pid 5323] <... bpf resumed>) = 4 [pid 5324] set_robust_list(0x555582d82660, 24 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5324 [pid 5324] <... set_robust_list resumed>) = 0 [pid 5322] <... bpf resumed>) = 8 [pid 5324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5324] setpgid(0, 0 [pid 5323] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5322] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5321] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5320, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5324] <... setpgid resumed>) = 0 [pid 5323] <... bpf resumed>) = 5 [pid 5322] <... ioctl resumed>) = 0 [pid 5324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5323] perf_event_open( [pid 5322] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5321] <... bpf resumed>) = 8 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5324] <... openat resumed>) = 3 [pid 5323] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5321] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5324] write(3, "1000", 4 [pid 5323] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5322] <... bpf resumed>) = 9 [pid 5321] <... ioctl resumed>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5324] <... write resumed>) = 4 [pid 5323] <... bpf resumed>) = 7 [pid 5322] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5321] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5324] close(3 [pid 5323] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5325 attached [pid 5321] <... bpf resumed>) = 9 [pid 5325] set_robust_list(0x555582d82660, 24 [pid 5324] <... close resumed>) = 0 [pid 5323] <... bpf resumed>) = 8 [pid 5322] <... bpf resumed>) = 10 [pid 5325] <... set_robust_list resumed>) = 0 [pid 5324] write(1, "executing program\n", 18 [pid 5321] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5325 [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program ) = 0 [pid 5324] <... write resumed>) = 18 [pid 5323] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5321] <... bpf resumed>) = 10 [pid 5325] setpgid(0, 0 [pid 5324] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5322] exit_group(0 [pid 5325] <... setpgid resumed>) = 0 [pid 5323] <... ioctl resumed>) = 0 [pid 5321] exit_group(0 [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5323] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5321] <... exit_group resumed>) = ? [pid 5324] <... bpf resumed>) = 3 [pid 5325] <... openat resumed>) = 3 [pid 5322] <... exit_group resumed>) = ? [pid 5325] write(3, "1000", 4 [pid 5324] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5323] <... bpf resumed>) = 9 [pid 5325] <... write resumed>) = 4 [pid 5324] <... bpf resumed>) = 4 [pid 5323] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5321] +++ exited with 0 +++ [pid 5325] close(3 [pid 5324] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- executing program [pid 5325] <... close resumed>) = 0 [pid 5325] write(1, "executing program\n", 18) = 18 [pid 5325] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5325] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5324] <... bpf resumed>) = 5 [pid 5323] <... bpf resumed>) = 10 [pid 5322] +++ exited with 0 +++ [pid 5323] exit_group(0 [pid 5325] <... bpf resumed>) = 4 [pid 5324] perf_event_open( [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5322, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5323] <... exit_group resumed>) = ? [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5324] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 ./strace-static-x86_64: Process 5326 attached [pid 5326] set_robust_list(0x555582d82660, 24) = 0 [pid 5326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5326 [pid 5326] <... prctl resumed>) = 0 [pid 5325] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5324] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5326] setpgid(0, 0) = 0 [pid 5326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5327 attached [pid 5324] <... bpf resumed>) = 7 [pid 5326] <... openat resumed>) = 3 [pid 5324] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5327] set_robust_list(0x555582d82660, 24 [pid 5326] write(3, "1000", 4 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5327 [pid 5327] <... set_robust_list resumed>) = 0 [pid 5326] <... write resumed>) = 4 [pid 5324] <... bpf resumed>) = 8 [pid 5324] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5326] close(3 [pid 5327] <... prctl resumed>) = 0 [pid 5326] <... close resumed>) = 0 [pid 5327] setpgid(0, 0 [pid 5326] write(1, "executing program\n", 18 [pid 5325] <... bpf resumed>) = 5 [pid 5324] <... ioctl resumed>) = 0 [pid 5323] +++ exited with 0 +++ executing program [pid 5325] perf_event_open( [pid 5324] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5327] <... setpgid resumed>) = 0 [pid 5326] <... write resumed>) = 18 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5326] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5325] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5324] <... bpf resumed>) = 9 [pid 5325] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5324] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5325] <... bpf resumed>) = 7 [pid 5324] <... bpf resumed>) = 10 [pid 5325] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5327] <... openat resumed>) = 3 [pid 5326] <... bpf resumed>) = 3 [pid 5324] exit_group(0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5327] write(3, "1000", 4 [pid 5326] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5325] <... bpf resumed>) = 8 [pid 5324] <... exit_group resumed>) = ? executing program ./strace-static-x86_64: Process 5328 attached [pid 5327] <... write resumed>) = 4 [pid 5326] <... bpf resumed>) = 4 [pid 5325] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5327] close(3 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5328 [pid 5328] set_robust_list(0x555582d82660, 24 [pid 5327] <... close resumed>) = 0 [pid 5328] <... set_robust_list resumed>) = 0 [pid 5327] write(1, "executing program\n", 18 [pid 5328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5327] <... write resumed>) = 18 [pid 5326] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5325] <... ioctl resumed>) = 0 [pid 5328] <... prctl resumed>) = 0 [pid 5327] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5325] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5328] setpgid(0, 0 [pid 5325] <... bpf resumed>) = 9 [pid 5325] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5328] <... setpgid resumed>) = 0 [pid 5327] <... bpf resumed>) = 3 [pid 5327] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5326] <... bpf resumed>) = 5 [pid 5325] <... bpf resumed>) = 10 [pid 5324] +++ exited with 0 +++ [pid 5328] <... openat resumed>) = 3 [pid 5327] <... bpf resumed>) = 4 [pid 5326] perf_event_open( [pid 5325] exit_group(0 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5324, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5327] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5326] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5328] write(3, "1000", 4 [pid 5327] <... bpf resumed>) = 5 [pid 5325] <... exit_group resumed>) = ? [pid 5328] <... write resumed>) = 4 [pid 5328] close(3) = 0 [pid 5326] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 5328] write(1, "executing program\n", 18) = 18 [pid 5328] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5327] perf_event_open( [pid 5326] <... bpf resumed>) = 7 [pid 5327] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5326] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5327] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5328] <... bpf resumed>) = 3 [pid 5326] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5329 attached [pid 5328] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5327] <... bpf resumed>) = 7 [pid 5329] set_robust_list(0x555582d82660, 24) = 0 [pid 5328] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5327] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5326] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5325] +++ exited with 0 +++ [pid 5329] <... prctl resumed>) = 0 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5325, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5327] <... bpf resumed>) = 8 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5329] setpgid(0, 0 [pid 5328] <... bpf resumed>) = 5 [pid 5327] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5326] <... ioctl resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5329 ./strace-static-x86_64: Process 5330 attached [pid 5329] <... setpgid resumed>) = 0 [pid 5328] perf_event_open( [pid 5327] <... ioctl resumed>) = 0 [pid 5326] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5330] set_robust_list(0x555582d82660, 24 [pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5328] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5327] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5330 [pid 5330] <... set_robust_list resumed>) = 0 [pid 5326] <... bpf resumed>) = 9 [pid 5330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5328] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5327] <... bpf resumed>) = 9 [pid 5330] setpgid(0, 0 [pid 5329] <... openat resumed>) = 3 [pid 5326] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5330] <... setpgid resumed>) = 0 [pid 5329] write(3, "1000", 4 [pid 5328] <... bpf resumed>) = 7 [pid 5328] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5329] <... write resumed>) = 4 [pid 5330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5329] close(3 [pid 5326] <... bpf resumed>) = 10 [pid 5330] <... openat resumed>) = 3 [pid 5329] <... close resumed>) = 0 [pid 5328] <... bpf resumed>) = 8 [pid 5326] exit_group(0executing program [pid 5330] write(3, "1000", 4 [pid 5329] write(1, "executing program\n", 18 [pid 5327] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5330] <... write resumed>) = 4 [pid 5329] <... write resumed>) = 18 [pid 5328] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5326] <... exit_group resumed>) = ? [pid 5330] close(3 [pid 5329] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5328] <... ioctl resumed>) = 0 [pid 5327] <... bpf resumed>) = 10 [pid 5330] <... close resumed>) = 0 [pid 5330] write(1, "executing program\n", 18) = 18 [pid 5328] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5327] exit_group(0 [pid 5330] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5329] <... bpf resumed>) = 3 [pid 5328] <... bpf resumed>) = 9 [pid 5327] <... exit_group resumed>) = ? [pid 5329] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5330] <... bpf resumed>) = 3 [pid 5329] <... bpf resumed>) = 4 [pid 5328] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5329] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5330] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5328] <... bpf resumed>) = 10 [pid 5330] <... bpf resumed>) = 4 [pid 5328] exit_group(0) = ? [pid 5330] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5327] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5327, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5331 attached , child_tidptr=0x555582d82650) = 5331 [pid 5331] set_robust_list(0x555582d82660, 24) = 0 [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5331] setpgid(0, 0) = 0 [pid 5330] <... bpf resumed>) = 5 [pid 5329] <... bpf resumed>) = 5 [pid 5326] +++ exited with 0 +++ [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5330] perf_event_open( [pid 5329] perf_event_open( [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5331] <... openat resumed>) = 3 [pid 5331] write(3, "1000", 4) = 4 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5331] close(3) = 0 executing program [pid 5331] write(1, "executing program\n", 18./strace-static-x86_64: Process 5332 attached ) = 18 [pid 5330] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5329] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5328] +++ exited with 0 +++ [pid 5331] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5329] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5332 [pid 5332] set_robust_list(0x555582d82660, 24 [pid 5330] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5329] <... bpf resumed>) = 7 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5328, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5331] <... bpf resumed>) = 3 [pid 5330] <... bpf resumed>) = 7 [pid 5329] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5332] <... set_robust_list resumed>) = 0 [pid 5330] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5330] <... bpf resumed>) = 8 [pid 5329] <... bpf resumed>) = 8 [pid 5329] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5333 attached [pid 5332] <... prctl resumed>) = 0 [pid 5331] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5330] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5329] <... ioctl resumed>) = 0 [pid 5333] set_robust_list(0x555582d82660, 24 [pid 5332] setpgid(0, 0 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5333 [pid 5333] <... set_robust_list resumed>) = 0 [pid 5332] <... setpgid resumed>) = 0 [pid 5331] <... bpf resumed>) = 4 [pid 5330] <... ioctl resumed>) = 0 [pid 5329] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5330] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5329] <... bpf resumed>) = 9 [pid 5333] <... prctl resumed>) = 0 [pid 5332] <... openat resumed>) = 3 [pid 5331] <... bpf resumed>) = 5 [pid 5332] write(3, "1000", 4 [pid 5330] <... bpf resumed>) = 9 [pid 5331] perf_event_open( [pid 5329] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5332] <... write resumed>) = 4 [pid 5333] setpgid(0, 0 [pid 5332] close(3 [pid 5333] <... setpgid resumed>) = 0 [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5329] <... bpf resumed>) = 10 [pid 5333] <... openat resumed>) = 3 [pid 5332] <... close resumed>) = 0 [pid 5331] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5330] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5333] write(3, "1000", 4 [pid 5332] write(1, "executing program\n", 18 [pid 5329] exit_group(0 [pid 5333] <... write resumed>) = 4 [pid 5331] <... bpf resumed>) = 7 [pid 5333] close(3 [pid 5332] <... write resumed>) = 18 [pid 5330] <... bpf resumed>) = 10 [pid 5329] <... exit_group resumed>) = ? [pid 5333] <... close resumed>) = 0 executing program [pid 5332] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5331] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5333] write(1, "executing program\n", 18) = 18 [pid 5330] exit_group(0 [pid 5333] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5331] <... bpf resumed>) = 8 [pid 5330] <... exit_group resumed>) = ? [pid 5333] <... bpf resumed>) = 3 [pid 5332] <... bpf resumed>) = 3 [pid 5331] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5329] +++ exited with 0 +++ [pid 5331] <... ioctl resumed>) = 0 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5329, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5331] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5333] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5332] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5331] <... bpf resumed>) = 9 [pid 5331] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5333] <... bpf resumed>) = 4 [pid 5332] <... bpf resumed>) = 4 [pid 5333] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5332] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5334 attached [pid 5333] <... bpf resumed>) = 5 [pid 5331] <... bpf resumed>) = 10 [pid 5330] +++ exited with 0 +++ [pid 5334] set_robust_list(0x555582d82660, 24 [pid 5333] perf_event_open( [pid 5332] <... bpf resumed>) = 5 [pid 5331] exit_group(0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5334 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5334] <... set_robust_list resumed>) = 0 [pid 5332] perf_event_open( [pid 5333] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5332] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5331] <... exit_group resumed>) = ? [pid 5334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5333] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5332] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5334] <... prctl resumed>) = 0 [pid 5334] setpgid(0, 0) = 0 [pid 5334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5331] +++ exited with 0 +++ [pid 5333] <... bpf resumed>) = 7 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5333] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5332] <... bpf resumed>) = 7 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5334] <... openat resumed>) = 3 [pid 5332] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5333] <... bpf resumed>) = 8 [pid 5334] write(3, "1000", 4) = 4 [pid 5334] close(3) = 0 [pid 5334] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5335 attached ) = 18 [pid 5334] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5335] set_robust_list(0x555582d82660, 24 [pid 5333] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5332] <... bpf resumed>) = 8 [pid 5335] <... set_robust_list resumed>) = 0 [pid 5333] <... ioctl resumed>) = 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5333] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5332] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5335 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5335] <... prctl resumed>) = 0 [pid 5334] <... bpf resumed>) = 3 [pid 5333] <... bpf resumed>) = 9 [pid 5332] <... ioctl resumed>) = 0 [pid 5335] setpgid(0, 0 [pid 5334] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5333] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5332] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5335] <... setpgid resumed>) = 0 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5334] <... bpf resumed>) = 4 [pid 5333] <... bpf resumed>) = 10 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5332] <... bpf resumed>) = 9 [pid 5333] exit_group(0 [pid 5332] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5334] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5335] <... openat resumed>) = 3 [pid 5334] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5336 attached [pid 5335] write(3, "1000", 4 [pid 5334] perf_event_open( [pid 5333] <... exit_group resumed>) = ? [pid 5332] <... bpf resumed>) = 10 [pid 5335] <... write resumed>) = 4 [pid 5334] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5336 [pid 5336] set_robust_list(0x555582d82660, 24 [pid 5335] close(3 [pid 5334] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5332] exit_group(0 [pid 5336] <... set_robust_list resumed>) = 0 [pid 5335] <... close resumed>) = 0 [pid 5332] <... exit_group resumed>) = ? [pid 5336] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 5335] write(1, "executing program\n", 18 [pid 5334] <... bpf resumed>) = 7 [pid 5333] +++ exited with 0 +++ [pid 5335] <... write resumed>) = 18 [pid 5334] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5336] <... prctl resumed>) = 0 [pid 5336] setpgid(0, 0 [pid 5335] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5336] <... setpgid resumed>) = 0 [pid 5334] <... bpf resumed>) = 8 [pid 5336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5335] <... bpf resumed>) = 3 [pid 5336] write(3, "1000", 4 [pid 5335] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5334] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5336] <... write resumed>) = 4 [pid 5336] close(3 [pid 5334] <... ioctl resumed>) = 0 [pid 5336] <... close resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5334] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 9 [pid 5334] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5337 attached [pid 5336] write(1, "executing program\n", 18 [pid 5335] <... bpf resumed>) = 4 executing program [pid 5337] set_robust_list(0x555582d82660, 24) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5337 [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5336] <... write resumed>) = 18 [pid 5335] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5332] +++ exited with 0 +++ [pid 5337] <... prctl resumed>) = 0 [pid 5337] setpgid(0, 0 [pid 5336] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5335] <... bpf resumed>) = 5 [pid 5334] <... bpf resumed>) = 10 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5332, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5337] <... setpgid resumed>) = 0 [pid 5335] perf_event_open( [pid 5334] exit_group(0 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5334] <... exit_group resumed>) = ? [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5335] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5336] <... bpf resumed>) = 3 [pid 5335] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5337] <... openat resumed>) = 3 [pid 5335] <... bpf resumed>) = 7 [pid 5337] write(3, "1000", 4executing program [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5337] <... write resumed>) = 4 [pid 5337] close(3) = 0 [pid 5337] write(1, "executing program\n", 18) = 18 [pid 5337] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5336] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5335] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5338 attached [pid 5337] <... bpf resumed>) = 3 [pid 5336] <... bpf resumed>) = 4 [pid 5335] <... bpf resumed>) = 8 [pid 5337] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5338] set_robust_list(0x555582d82660, 24 [pid 5336] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5335] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5338 [pid 5338] <... set_robust_list resumed>) = 0 [pid 5337] <... bpf resumed>) = 4 [pid 5338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5335] <... ioctl resumed>) = 0 [pid 5338] <... prctl resumed>) = 0 [pid 5337] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5335] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5338] setpgid(0, 0) = 0 [pid 5335] <... bpf resumed>) = 9 [pid 5338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5335] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5338] <... openat resumed>) = 3 [pid 5338] write(3, "1000", 4) = 4 [pid 5338] close(3) = 0 [pid 5337] <... bpf resumed>) = 5 [pid 5336] <... bpf resumed>) = 5 [pid 5335] <... bpf resumed>) = 10 [pid 5334] +++ exited with 0 +++ [pid 5338] write(1, "executing program\n", 18 [pid 5337] perf_event_open(executing program [pid 5336] perf_event_open( [pid 5338] <... write resumed>) = 18 [pid 5337] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5334, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5335] exit_group(0 [pid 5338] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5337] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5336] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5335] <... exit_group resumed>) = ? [pid 5337] <... bpf resumed>) = 7 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5338] <... bpf resumed>) = 3 [pid 5337] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5336] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 7 ./strace-static-x86_64: Process 5339 attached [pid 5336] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5338] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5339] set_robust_list(0x555582d82660, 24 [pid 5335] +++ exited with 0 +++ [pid 5339] <... set_robust_list resumed>) = 0 [pid 5337] <... bpf resumed>) = 8 [pid 5336] <... bpf resumed>) = 8 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5339 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5338] <... bpf resumed>) = 4 [pid 5337] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5336] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5339] <... prctl resumed>) = 0 [pid 5337] <... ioctl resumed>) = 0 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5339] setpgid(0, 0 [pid 5338] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5337] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5339] <... setpgid resumed>) = 0 [pid 5338] <... bpf resumed>) = 5 [pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5338] perf_event_open( [pid 5337] <... bpf resumed>) = 9 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5338] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5337] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5336] <... ioctl resumed>) = 0 [pid 5338] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5340 attached [pid 5339] <... openat resumed>) = 3 [pid 5336] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5340] set_robust_list(0x555582d82660, 24) = 0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5340 [pid 5336] <... bpf resumed>) = 9 [pid 5340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5337] <... bpf resumed>) = 10 [pid 5340] <... prctl resumed>) = 0 [pid 5340] setpgid(0, 0) = 0 [pid 5339] write(3, "1000", 4 [pid 5338] <... bpf resumed>) = 7 [pid 5337] exit_group(0 [pid 5336] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5339] <... write resumed>) = 4 [pid 5338] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5337] <... exit_group resumed>) = ? [pid 5336] <... bpf resumed>) = 10 [pid 5340] <... openat resumed>) = 3 [pid 5339] close(3 [pid 5340] write(3, "1000", 4 [pid 5339] <... close resumed>) = 0 [pid 5340] <... write resumed>) = 4 [pid 5339] write(1, "executing program\n", 18executing program [pid 5338] <... bpf resumed>) = 8 [pid 5336] exit_group(0 [pid 5340] close(3 [pid 5339] <... write resumed>) = 18 [pid 5338] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5336] <... exit_group resumed>) = ? [pid 5340] <... close resumed>) = 0 [pid 5339] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 executing program [pid 5340] write(1, "executing program\n", 18 [pid 5338] <... ioctl resumed>) = 0 [pid 5340] <... write resumed>) = 18 [pid 5338] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5340] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5339] <... bpf resumed>) = 3 [pid 5338] <... bpf resumed>) = 9 [pid 5338] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5339] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5338] <... bpf resumed>) = 10 [pid 5340] <... bpf resumed>) = 3 [pid 5339] <... bpf resumed>) = 4 [pid 5337] +++ exited with 0 +++ [pid 5340] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5338] exit_group(0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5339] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5338] <... exit_group resumed>) = ? [pid 5340] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5340] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5341 attached ) = 5 [pid 5339] <... bpf resumed>) = 5 [pid 5336] +++ exited with 0 +++ [pid 5341] set_robust_list(0x555582d82660, 24 [pid 5339] perf_event_open( [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5341] <... set_robust_list resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5341 [pid 5340] perf_event_open( [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 5342 attached [pid 5341] setpgid(0, 0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5342 [pid 5342] set_robust_list(0x555582d82660, 24 [pid 5341] <... setpgid resumed>) = 0 [pid 5342] <... set_robust_list resumed>) = 0 [pid 5342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5342] setpgid(0, 0) = 0 [pid 5342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5340] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5339] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5338] +++ exited with 0 +++ [pid 5342] <... openat resumed>) = 3 [pid 5341] <... openat resumed>) = 3 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5341] write(3, "1000", 4 [pid 5340] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5339] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5341] <... write resumed>) = 4 [pid 5340] <... bpf resumed>) = 7 [pid 5342] write(3, "1000", 4 [pid 5340] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5339] <... bpf resumed>) = 7 [pid 5342] <... write resumed>) = 4 [pid 5341] close(3 [pid 5342] close(3 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5342] <... close resumed>) = 0 [pid 5341] <... close resumed>) = 0 [pid 5340] <... bpf resumed>) = 8 executing program executing program [pid 5339] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5343 attached [pid 5342] write(1, "executing program\n", 18 [pid 5341] write(1, "executing program\n", 18 [pid 5340] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5343] set_robust_list(0x555582d82660, 24 [pid 5342] <... write resumed>) = 18 [pid 5341] <... write resumed>) = 18 [pid 5342] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5340] <... ioctl resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5343 [pid 5341] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5339] <... bpf resumed>) = 8 [pid 5343] <... set_robust_list resumed>) = 0 [pid 5340] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5342] <... bpf resumed>) = 3 [pid 5341] <... bpf resumed>) = 3 [pid 5339] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5343] <... prctl resumed>) = 0 [pid 5343] setpgid(0, 0 [pid 5340] <... bpf resumed>) = 9 [pid 5343] <... setpgid resumed>) = 0 [pid 5342] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5341] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5340] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5339] <... ioctl resumed>) = 0 [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5342] <... bpf resumed>) = 4 [pid 5340] <... bpf resumed>) = 10 [pid 5339] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5343] <... openat resumed>) = 3 [pid 5342] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5341] <... bpf resumed>) = 4 [pid 5343] write(3, "1000", 4 [pid 5342] <... bpf resumed>) = 5 [pid 5339] <... bpf resumed>) = 9 [pid 5340] exit_group(0 [pid 5343] <... write resumed>) = 4 [pid 5342] perf_event_open( [pid 5341] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5343] close(3 [pid 5342] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5340] <... exit_group resumed>) = ? [pid 5339] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5343] <... close resumed>) = 0 [pid 5342] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5341] <... bpf resumed>) = 5 [pid 5343] write(1, "executing program\n", 18 [pid 5342] <... bpf resumed>) = 7 [pid 5343] <... write resumed>) = 18 [pid 5343] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5342] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5339] <... bpf resumed>) = 10 [pid 5341] perf_event_open( [pid 5343] <... bpf resumed>) = 3 [pid 5342] <... bpf resumed>) = 8 [pid 5339] exit_group(0 [pid 5341] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5341] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5339] <... exit_group resumed>) = ? [pid 5342] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5341] <... bpf resumed>) = 7 [pid 5342] <... ioctl resumed>) = 0 [pid 5343] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5341] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5343] <... bpf resumed>) = 4 [pid 5342] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5340] +++ exited with 0 +++ [pid 5339] +++ exited with 0 +++ [pid 5343] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5342] <... bpf resumed>) = 9 [pid 5341] <... bpf resumed>) = 8 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5340, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5343] <... bpf resumed>) = 5 [pid 5342] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5341] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5343] perf_event_open( [pid 5341] <... ioctl resumed>) = 0 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5343] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5341] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5343] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5341] <... bpf resumed>) = 9 [pid 5343] <... bpf resumed>) = 7 [pid 5341] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5344 attached [pid 5343] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5344] set_robust_list(0x555582d82660, 24 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5344 [pid 5344] <... set_robust_list resumed>) = 0 [pid 5343] <... bpf resumed>) = 8 [pid 5342] <... bpf resumed>) = 10 ./strace-static-x86_64: Process 5345 attached [pid 5344] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5343] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5342] exit_group(0 [pid 5341] <... bpf resumed>) = 10 [pid 5344] <... prctl resumed>) = 0 [pid 5342] <... exit_group resumed>) = ? [pid 5345] set_robust_list(0x555582d82660, 24 [pid 5344] setpgid(0, 0 [pid 5343] <... ioctl resumed>) = 0 [pid 5341] exit_group(0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5345 [pid 5345] <... set_robust_list resumed>) = 0 [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5344] <... setpgid resumed>) = 0 [pid 5343] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5341] <... exit_group resumed>) = ? [pid 5345] <... prctl resumed>) = 0 [pid 5345] setpgid(0, 0 [pid 5343] <... bpf resumed>) = 9 [pid 5345] <... setpgid resumed>) = 0 [pid 5344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5341] +++ exited with 0 +++ [pid 5344] <... openat resumed>) = 3 [pid 5343] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5345] <... openat resumed>) = 3 [pid 5344] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5345] write(3, "1000", 4 [pid 5344] <... write resumed>) = 4 [pid 5345] <... write resumed>) = 4 [pid 5344] close(3 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5345] close(3 [pid 5344] <... close resumed>) = 0 executing program [pid 5345] <... close resumed>) = 0 [pid 5344] write(1, "executing program\n", 18 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5345] write(1, "executing program\n", 18 [pid 5344] <... write resumed>) = 18 executing program [pid 5345] <... write resumed>) = 18 [pid 5344] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5345] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5344] <... bpf resumed>) = 3 [pid 5345] <... bpf resumed>) = 3 [pid 5344] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5343] <... bpf resumed>) = 10 [pid 5342] +++ exited with 0 +++ [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5345] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5343] exit_group(0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5343] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5346 attached [pid 5345] <... bpf resumed>) = 4 [pid 5344] <... bpf resumed>) = 4 [pid 5346] set_robust_list(0x555582d82660, 24 [pid 5345] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5344] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5346 [pid 5346] <... set_robust_list resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5346] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5347 attached ) = 0 [pid 5345] <... bpf resumed>) = 5 [pid 5344] <... bpf resumed>) = 5 [pid 5345] perf_event_open( [pid 5344] perf_event_open( [pid 5346] setpgid(0, 0) = 0 [pid 5347] set_robust_list(0x555582d82660, 24 [pid 5346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5347 [pid 5347] <... set_robust_list resumed>) = 0 [pid 5346] <... openat resumed>) = 3 [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5346] write(3, "1000", 4 [pid 5347] <... prctl resumed>) = 0 [pid 5347] setpgid(0, 0 [pid 5346] <... write resumed>) = 4 [pid 5347] <... setpgid resumed>) = 0 [pid 5346] close(3 [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5346] <... close resumed>) = 0 executing program [pid 5346] write(1, "executing program\n", 18) = 18 [pid 5347] <... openat resumed>) = 3 [pid 5347] write(3, "1000", 4 [pid 5346] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5345] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5344] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5343] +++ exited with 0 +++ [pid 5347] <... write resumed>) = 4 [pid 5345] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5344] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5347] close(3 [pid 5346] <... bpf resumed>) = 3 [pid 5345] <... bpf resumed>) = 7 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5347] <... close resumed>) = 0 [pid 5346] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5344] <... bpf resumed>) = 7 [pid 5347] write(1, "executing program\n", 18 [pid 5345] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144executing program [pid 5344] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5347] <... write resumed>) = 18 [pid 5346] <... bpf resumed>) = 4 [pid 5345] <... bpf resumed>) = 8 [pid 5347] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5348 attached [pid 5346] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5345] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5344] <... bpf resumed>) = 8 [pid 5348] set_robust_list(0x555582d82660, 24 [pid 5345] <... ioctl resumed>) = 0 [pid 5348] <... set_robust_list resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5348 [pid 5348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5347] <... bpf resumed>) = 3 [pid 5346] <... bpf resumed>) = 5 [pid 5345] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5344] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5347] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5346] perf_event_open( [pid 5348] setpgid(0, 0 [pid 5345] <... bpf resumed>) = 9 [pid 5344] <... ioctl resumed>) = 0 [pid 5348] <... setpgid resumed>) = 0 [pid 5347] <... bpf resumed>) = 4 [pid 5346] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5347] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5345] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5344] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5347] <... bpf resumed>) = 5 [pid 5346] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5347] perf_event_open( [pid 5346] <... bpf resumed>) = 7 [pid 5348] <... openat resumed>) = 3 [pid 5347] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5345] <... bpf resumed>) = 10 [pid 5348] write(3, "1000", 4 [pid 5345] exit_group(0 [pid 5344] <... bpf resumed>) = 9 [pid 5348] <... write resumed>) = 4 [pid 5346] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5345] <... exit_group resumed>) = ? [pid 5348] close(3 [pid 5347] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5344] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5348] <... close resumed>) = 0 [pid 5348] write(1, "executing program\n", 18executing program ) = 18 [pid 5348] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5347] <... bpf resumed>) = 7 [pid 5344] <... bpf resumed>) = 10 [pid 5346] <... bpf resumed>) = 8 [pid 5347] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5346] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5344] exit_group(0 [pid 5348] <... bpf resumed>) = 3 [pid 5347] <... bpf resumed>) = 8 [pid 5346] <... ioctl resumed>) = 0 [pid 5344] <... exit_group resumed>) = ? [pid 5348] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5346] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5347] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5348] <... bpf resumed>) = 4 [pid 5347] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5346] <... bpf resumed>) = 9 [pid 5345] +++ exited with 0 +++ [pid 5348] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5344] +++ exited with 0 +++ [pid 5348] <... bpf resumed>) = 5 [pid 5347] <... bpf resumed>) = 9 [pid 5346] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5344, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5348] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5347] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5348] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5350 attached ./strace-static-x86_64: Process 5349 attached [pid 5348] <... bpf resumed>) = 7 [pid 5346] <... bpf resumed>) = 10 [pid 5350] set_robust_list(0x555582d82660, 24 [pid 5348] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5349 [pid 5349] set_robust_list(0x555582d82660, 24 [pid 5350] <... set_robust_list resumed>) = 0 [pid 5346] exit_group(0 [pid 5350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5349] <... set_robust_list resumed>) = 0 [pid 5347] <... bpf resumed>) = 10 [pid 5346] <... exit_group resumed>) = ? [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5350 [pid 5350] <... prctl resumed>) = 0 [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5348] <... bpf resumed>) = 8 [pid 5347] exit_group(0 [pid 5350] setpgid(0, 0 [pid 5347] <... exit_group resumed>) = ? [pid 5349] <... prctl resumed>) = 0 [pid 5348] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5350] <... setpgid resumed>) = 0 [pid 5348] <... ioctl resumed>) = 0 [pid 5350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5348] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5350] <... openat resumed>) = 3 [pid 5349] setpgid(0, 0) = 0 [pid 5348] <... bpf resumed>) = 9 [pid 5348] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5350] write(3, "1000", 4 [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] <... write resumed>) = 4 [pid 5350] close(3 [pid 5349] <... openat resumed>) = 3 [pid 5350] <... close resumed>) = 0 [pid 5350] write(1, "executing program\n", 18 [pid 5349] write(3, "1000", 4) = 4 executing program [pid 5349] close(3 [pid 5350] <... write resumed>) = 18 [pid 5349] <... close resumed>) = 0 executing program [pid 5349] write(1, "executing program\n", 18 [pid 5350] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5349] <... write resumed>) = 18 [pid 5349] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5350] <... bpf resumed>) = 3 [pid 5350] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5349] <... bpf resumed>) = 3 [pid 5348] <... bpf resumed>) = 10 [pid 5346] +++ exited with 0 +++ [pid 5349] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5350] <... bpf resumed>) = 4 [pid 5348] exit_group(0 [pid 5350] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5349] <... bpf resumed>) = 4 [pid 5348] <... exit_group resumed>) = ? [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5349] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5351 attached [pid 5350] <... bpf resumed>) = 5 [pid 5349] <... bpf resumed>) = 5 [pid 5347] +++ exited with 0 +++ [pid 5351] set_robust_list(0x555582d82660, 24 [pid 5350] perf_event_open( [pid 5351] <... set_robust_list resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5351 [pid 5349] perf_event_open( [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5351] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5352 attached [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5350] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5349] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5348] +++ exited with 0 +++ [pid 5352] set_robust_list(0x555582d82660, 24 [pid 5350] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5349] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5348, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5352 [pid 5352] <... set_robust_list resumed>) = 0 [pid 5351] <... openat resumed>) = 3 [pid 5350] <... bpf resumed>) = 7 [pid 5349] <... bpf resumed>) = 7 [pid 5352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5350] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5352] setpgid(0, 0 [pid 5351] write(3, "1000", 4 [pid 5349] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5350] <... bpf resumed>) = 8 [pid 5352] <... setpgid resumed>) = 0 [pid 5351] <... write resumed>) = 4 [pid 5350] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5351] close(3 [pid 5350] <... ioctl resumed>) = 0 [pid 5352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5351] <... close resumed>) = 0 [pid 5349] <... bpf resumed>) = 8 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5352] <... openat resumed>) = 3 [pid 5351] write(1, "executing program\n", 18 [pid 5350] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5349] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5353 attached [pid 5352] write(3, "1000", 4 [pid 5351] <... write resumed>) = 18 [pid 5349] <... ioctl resumed>) = 0 [pid 5352] <... write resumed>) = 4 [pid 5351] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5350] <... bpf resumed>) = 9 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5353 [pid 5353] set_robust_list(0x555582d82660, 24 [pid 5352] close(3 [pid 5349] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5353] <... set_robust_list resumed>) = 0 [pid 5352] <... close resumed>) = 0 [pid 5351] <... bpf resumed>) = 3 [pid 5350] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5351] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5352] write(1, "executing program\n", 18 [pid 5349] <... bpf resumed>) = 9 [pid 5350] <... bpf resumed>) = 10 [pid 5353] <... prctl resumed>) = 0 [pid 5352] <... write resumed>) = 18 [pid 5353] setpgid(0, 0 [pid 5352] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5349] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5351] <... bpf resumed>) = 4 [pid 5353] <... setpgid resumed>) = 0 [pid 5350] exit_group(0 [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5349] <... bpf resumed>) = 10 [pid 5353] <... openat resumed>) = 3 [pid 5352] <... bpf resumed>) = 3 [pid 5351] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5350] <... exit_group resumed>) = ? [pid 5349] exit_group(0 [pid 5353] write(3, "1000", 4 [pid 5352] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5351] <... bpf resumed>) = 5 [pid 5353] <... write resumed>) = 4 [pid 5351] perf_event_open( [pid 5349] <... exit_group resumed>) = ? [pid 5353] close(3 [pid 5351] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5351] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5353] <... close resumed>) = 0 [pid 5352] <... bpf resumed>) = 4 [pid 5351] <... bpf resumed>) = 7 [pid 5350] +++ exited with 0 +++ executing program [pid 5353] write(1, "executing program\n", 18) = 18 [pid 5352] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5351] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5350, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5353] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5351] <... bpf resumed>) = 8 [pid 5351] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5353] <... bpf resumed>) = 3 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5349] +++ exited with 0 +++ [pid 5353] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5352] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5354 attached [pid 5353] <... bpf resumed>) = 4 [pid 5352] perf_event_open( [pid 5351] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5354] set_robust_list(0x555582d82660, 24 [pid 5353] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5354 [pid 5352] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5354] <... set_robust_list resumed>) = 0 [pid 5352] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5352] <... bpf resumed>) = 7 [pid 5351] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5355 attached [pid 5353] <... bpf resumed>) = 5 [pid 5351] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5354] <... prctl resumed>) = 0 [pid 5353] perf_event_open( [pid 5355] set_robust_list(0x555582d82660, 24 [pid 5352] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5355] <... set_robust_list resumed>) = 0 [pid 5354] setpgid(0, 0 [pid 5353] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5354] <... setpgid resumed>) = 0 [pid 5353] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5355 [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5353] <... bpf resumed>) = 7 [pid 5352] <... bpf resumed>) = 8 [pid 5355] <... prctl resumed>) = 0 [pid 5351] <... bpf resumed>) = 10 [pid 5355] setpgid(0, 0 [pid 5354] <... openat resumed>) = 3 [pid 5353] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5352] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5351] exit_group(0 [pid 5355] <... setpgid resumed>) = 0 [pid 5354] write(3, "1000", 4 [pid 5353] <... bpf resumed>) = 8 [pid 5352] <... ioctl resumed>) = 0 [pid 5351] <... exit_group resumed>) = ? [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5354] <... write resumed>) = 4 [pid 5353] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5355] <... openat resumed>) = 3 [pid 5354] close(3 [pid 5353] <... ioctl resumed>) = 0 [pid 5352] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5355] write(3, "1000", 4 [pid 5354] <... close resumed>) = 0 [pid 5353] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128executing program [pid 5355] <... write resumed>) = 4 [pid 5354] write(1, "executing program\n", 18 [pid 5352] <... bpf resumed>) = 9 [pid 5351] +++ exited with 0 +++ [pid 5354] <... write resumed>) = 18 [pid 5353] <... bpf resumed>) = 9 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5355] close(3 [pid 5354] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5353] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5352] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5355] <... close resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5355] write(1, "executing program\n", 18) = 18 executing program ./strace-static-x86_64: Process 5356 attached [pid 5355] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5353] <... bpf resumed>) = 10 [pid 5352] <... bpf resumed>) = 10 [pid 5356] set_robust_list(0x555582d82660, 24 [pid 5354] <... bpf resumed>) = 3 [pid 5352] exit_group(0 [pid 5356] <... set_robust_list resumed>) = 0 [pid 5353] exit_group(0 [pid 5352] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5356 [pid 5356] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5355] <... bpf resumed>) = 3 [pid 5354] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5353] <... exit_group resumed>) = ? [pid 5356] <... prctl resumed>) = 0 [pid 5355] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5354] <... bpf resumed>) = 4 [pid 5356] setpgid(0, 0) = 0 [pid 5354] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5355] <... bpf resumed>) = 4 [pid 5355] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5356] write(3, "1000", 4 [pid 5355] <... bpf resumed>) = 5 [pid 5354] <... bpf resumed>) = 5 [pid 5352] +++ exited with 0 +++ [pid 5355] perf_event_open( [pid 5356] <... write resumed>) = 4 [pid 5354] perf_event_open( [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5356] close(3) = 0 executing program [pid 5356] write(1, "executing program\n", 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5356] <... write resumed>) = 18 [pid 5356] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5357 attached [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5357 [pid 5356] <... bpf resumed>) = 3 [pid 5357] set_robust_list(0x555582d82660, 24 [pid 5356] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5357] <... set_robust_list resumed>) = 0 [pid 5355] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5354] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5353] +++ exited with 0 +++ [pid 5355] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5356] <... bpf resumed>) = 4 [pid 5355] <... bpf resumed>) = 7 [pid 5354] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5357] <... prctl resumed>) = 0 [pid 5355] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5357] setpgid(0, 0 [pid 5354] <... bpf resumed>) = 7 [pid 5355] <... bpf resumed>) = 8 [pid 5357] <... setpgid resumed>) = 0 [pid 5356] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5356] <... bpf resumed>) = 5 [pid 5355] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5354] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5357] <... openat resumed>) = 3 [pid 5356] perf_event_open( [pid 5355] <... ioctl resumed>) = 0 [pid 5356] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5354] <... bpf resumed>) = 8 [pid 5354] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5358 attached [pid 5357] write(3, "1000", 4 [pid 5356] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5355] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5358] set_robust_list(0x555582d82660, 24 [pid 5357] <... write resumed>) = 4 [pid 5354] <... ioctl resumed>) = 0 [pid 5357] close(3 [pid 5355] <... bpf resumed>) = 9 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5358 [pid 5358] <... set_robust_list resumed>) = 0 [pid 5357] <... close resumed>) = 0 [pid 5356] <... bpf resumed>) = 7 [pid 5354] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5358] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 5357] write(1, "executing program\n", 18 [pid 5356] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5355] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5358] <... prctl resumed>) = 0 [pid 5357] <... write resumed>) = 18 [pid 5354] <... bpf resumed>) = 9 [pid 5357] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5355] <... bpf resumed>) = 10 [pid 5358] setpgid(0, 0 [pid 5356] <... bpf resumed>) = 8 [pid 5354] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5358] <... setpgid resumed>) = 0 [pid 5354] <... bpf resumed>) = 10 [pid 5358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5357] <... bpf resumed>) = 3 [pid 5355] exit_group(0) = ? [pid 5358] <... openat resumed>) = 3 [pid 5354] exit_group(0 [pid 5357] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5356] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5354] <... exit_group resumed>) = ? [pid 5358] write(3, "1000", 4 [pid 5357] <... bpf resumed>) = 4 [pid 5356] <... ioctl resumed>) = 0 [pid 5358] <... write resumed>) = 4 [pid 5358] close(3) = 0 executing program [pid 5358] write(1, "executing program\n", 18 [pid 5357] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5356] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5358] <... write resumed>) = 18 [pid 5358] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5356] <... bpf resumed>) = 9 [pid 5355] +++ exited with 0 +++ [pid 5357] <... bpf resumed>) = 5 [pid 5358] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5357] perf_event_open( [pid 5356] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5354] +++ exited with 0 +++ [pid 5358] <... bpf resumed>) = 4 [pid 5357] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5354, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5358] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5357] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5357] <... bpf resumed>) = 7 [pid 5357] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5358] <... bpf resumed>) = 5 [pid 5356] <... bpf resumed>) = 10 ./strace-static-x86_64: Process 5360 attached ./strace-static-x86_64: Process 5359 attached [pid 5358] perf_event_open( [pid 5357] <... bpf resumed>) = 8 [pid 5356] exit_group(0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5359 [pid 5360] set_robust_list(0x555582d82660, 24 [pid 5359] set_robust_list(0x555582d82660, 24 [pid 5358] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5357] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5356] <... exit_group resumed>) = ? [pid 5360] <... set_robust_list resumed>) = 0 [pid 5359] <... set_robust_list resumed>) = 0 [pid 5358] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5357] <... ioctl resumed>) = 0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5360 [pid 5360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5358] <... bpf resumed>) = 7 [pid 5357] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5360] <... prctl resumed>) = 0 [pid 5359] <... prctl resumed>) = 0 [pid 5358] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5356] +++ exited with 0 +++ [pid 5360] setpgid(0, 0 [pid 5359] setpgid(0, 0 [pid 5357] <... bpf resumed>) = 9 [pid 5359] <... setpgid resumed>) = 0 [pid 5357] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5356, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5357] <... bpf resumed>) = 10 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5358] <... bpf resumed>) = 8 [pid 5360] <... setpgid resumed>) = 0 [pid 5357] exit_group(0 [pid 5360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5358] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5359] <... openat resumed>) = 3 [pid 5358] <... ioctl resumed>) = 0 [pid 5357] <... exit_group resumed>) = ? [pid 5360] <... openat resumed>) = 3 [pid 5359] write(3, "1000", 4 [pid 5360] write(3, "1000", 4 [pid 5359] <... write resumed>) = 4 [pid 5358] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5360] <... write resumed>) = 4 [pid 5359] close(3 [pid 5360] close(3 [pid 5359] <... close resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5360] <... close resumed>) = 0 executing program executing program [pid 5359] write(1, "executing program\n", 18 [pid 5358] <... bpf resumed>) = 9 [pid 5360] write(1, "executing program\n", 18 [pid 5359] <... write resumed>) = 18 [pid 5358] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5361 attached [pid 5360] <... write resumed>) = 18 [pid 5359] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5361] set_robust_list(0x555582d82660, 24 [pid 5360] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5358] <... bpf resumed>) = 10 [pid 5357] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5361 [pid 5361] <... set_robust_list resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5359] <... bpf resumed>) = 3 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5361] <... prctl resumed>) = 0 [pid 5358] exit_group(0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5361] setpgid(0, 0 [pid 5358] <... exit_group resumed>) = ? [pid 5361] <... setpgid resumed>) = 0 [pid 5360] <... bpf resumed>) = 3 [pid 5359] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5360] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5359] <... bpf resumed>) = 4 [pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5360] <... bpf resumed>) = 4 [pid 5359] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5361] write(3, "1000", 4 [pid 5360] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5361] <... write resumed>) = 4 [pid 5361] close(3 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5361] <... close resumed>) = 0 executing program [pid 5360] <... bpf resumed>) = 5 [pid 5359] <... bpf resumed>) = 5 [pid 5361] write(1, "executing program\n", 18 [pid 5360] perf_event_open( [pid 5359] perf_event_open( [pid 5361] <... write resumed>) = 18 [pid 5361] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5362 ./strace-static-x86_64: Process 5362 attached [pid 5361] <... bpf resumed>) = 3 [pid 5358] +++ exited with 0 +++ [pid 5361] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5360] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5358, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5362] set_robust_list(0x555582d82660, 24 [pid 5359] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5362] <... set_robust_list resumed>) = 0 [pid 5360] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5359] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5361] <... bpf resumed>) = 4 [pid 5360] <... bpf resumed>) = 7 [pid 5360] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5362] <... prctl resumed>) = 0 [pid 5359] <... bpf resumed>) = 7 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5362] setpgid(0, 0 [pid 5361] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5361] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5361] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5360] <... bpf resumed>) = 8 [pid 5361] <... bpf resumed>) = 7 ./strace-static-x86_64: Process 5363 attached [pid 5362] <... setpgid resumed>) = 0 [pid 5360] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5359] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5363] set_robust_list(0x555582d82660, 24) = 0 [pid 5362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5361] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5360] <... ioctl resumed>) = 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5363 [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5362] <... openat resumed>) = 3 [pid 5361] <... bpf resumed>) = 8 [pid 5359] <... bpf resumed>) = 8 [pid 5363] <... prctl resumed>) = 0 [pid 5360] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5363] setpgid(0, 0 [pid 5362] write(3, "1000", 4 [pid 5361] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5359] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5363] <... setpgid resumed>) = 0 [pid 5362] <... write resumed>) = 4 [pid 5361] <... ioctl resumed>) = 0 [pid 5360] <... bpf resumed>) = 9 [pid 5359] <... ioctl resumed>) = 0 [pid 5362] close(3 [pid 5361] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5362] <... close resumed>) = 0 [pid 5360] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5359] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5363] <... openat resumed>) = 3 executing program [pid 5362] write(1, "executing program\n", 18 [pid 5361] <... bpf resumed>) = 9 [pid 5360] <... bpf resumed>) = 10 [pid 5363] write(3, "1000", 4 [pid 5362] <... write resumed>) = 18 [pid 5361] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5359] <... bpf resumed>) = 9 [pid 5363] <... write resumed>) = 4 [pid 5362] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5361] <... bpf resumed>) = 10 [pid 5360] exit_group(0 [pid 5359] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5363] close(3 [pid 5361] exit_group(0 [pid 5359] <... bpf resumed>) = 10 [pid 5363] <... close resumed>) = 0 [pid 5362] <... bpf resumed>) = 3 [pid 5361] <... exit_group resumed>) = ? [pid 5360] <... exit_group resumed>) = ? [pid 5363] write(1, "executing program\n", 18 [pid 5362] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5359] exit_group(0 [pid 5363] <... write resumed>) = 18 [pid 5362] <... bpf resumed>) = 4 [pid 5363] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5359] <... exit_group resumed>) = ? [pid 5362] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5363] <... bpf resumed>) = 3 [pid 5360] +++ exited with 0 +++ [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5360, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5363] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5363] <... bpf resumed>) = 4 [pid 5363] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5364 attached [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5364 [pid 5364] set_robust_list(0x555582d82660, 24) = 0 [pid 5364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5363] <... bpf resumed>) = 5 [pid 5362] <... bpf resumed>) = 5 [pid 5361] +++ exited with 0 +++ [pid 5362] perf_event_open( [pid 5364] setpgid(0, 0 [pid 5363] perf_event_open( [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5361, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5364] <... setpgid resumed>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5364] write(3, "1000", 4./strace-static-x86_64: Process 5365 attached ) = 4 [pid 5364] close(3) = 0 [pid 5364] write(1, "executing program\n", 18 [pid 5365] set_robust_list(0x555582d82660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5365 executing program [pid 5365] <... set_robust_list resumed>) = 0 [pid 5364] <... write resumed>) = 18 [pid 5359] +++ exited with 0 +++ [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5364] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5362] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5365] <... prctl resumed>) = 0 [pid 5363] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5362] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5365] setpgid(0, 0 [pid 5364] <... bpf resumed>) = 3 [pid 5363] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5365] <... setpgid resumed>) = 0 [pid 5362] <... bpf resumed>) = 7 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5364] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5366 attached [pid 5366] set_robust_list(0x555582d82660, 24 [pid 5363] <... bpf resumed>) = 7 [pid 5366] <... set_robust_list resumed>) = 0 [pid 5366] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5366] <... prctl resumed>) = 0 [pid 5364] <... bpf resumed>) = 4 [pid 5363] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5362] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5366] setpgid(0, 0 [pid 5365] <... openat resumed>) = 3 [pid 5364] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5366 [pid 5366] <... setpgid resumed>) = 0 [pid 5366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5362] <... bpf resumed>) = 8 [pid 5365] write(3, "1000", 4) = 4 [pid 5366] <... openat resumed>) = 3 [pid 5365] close(3 [pid 5364] <... bpf resumed>) = 5 [pid 5363] <... bpf resumed>) = 8 [pid 5362] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5365] <... close resumed>) = 0 [pid 5366] write(3, "1000", 4executing program [pid 5365] write(1, "executing program\n", 18 [pid 5364] perf_event_open( [pid 5366] <... write resumed>) = 4 [pid 5365] <... write resumed>) = 18 [pid 5364] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5363] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5362] <... ioctl resumed>) = 0 [pid 5366] close(3 [pid 5365] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5364] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5363] <... ioctl resumed>) = 0 [pid 5362] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5366] <... close resumed>) = 0 [pid 5364] <... bpf resumed>) = 7 [pid 5363] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128executing program [pid 5366] write(1, "executing program\n", 18 [pid 5364] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5362] <... bpf resumed>) = 9 [pid 5366] <... write resumed>) = 18 [pid 5364] <... bpf resumed>) = 8 [pid 5363] <... bpf resumed>) = 9 [pid 5366] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5365] <... bpf resumed>) = 3 [pid 5364] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5363] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5362] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5366] <... bpf resumed>) = 3 [pid 5365] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5362] <... bpf resumed>) = 10 [pid 5366] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5364] <... ioctl resumed>) = 0 [pid 5363] <... bpf resumed>) = 10 [pid 5366] <... bpf resumed>) = 4 [pid 5365] <... bpf resumed>) = 4 [pid 5364] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5363] exit_group(0 [pid 5362] exit_group(0 [pid 5366] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5365] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5363] <... exit_group resumed>) = ? [pid 5362] <... exit_group resumed>) = ? [pid 5366] <... bpf resumed>) = 5 [pid 5365] <... bpf resumed>) = 5 [pid 5364] <... bpf resumed>) = 9 [pid 5366] perf_event_open( [pid 5365] perf_event_open( [pid 5366] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5365] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5366] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5363] +++ exited with 0 +++ [pid 5366] <... bpf resumed>) = 7 [pid 5365] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5364] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5365] <... bpf resumed>) = 7 [pid 5366] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5365] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5366] <... bpf resumed>) = 8 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5366] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5364] <... bpf resumed>) = 10 [pid 5366] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 9 [pid 5364] exit_group(0 [pid 5362] +++ exited with 0 +++ [pid 5365] <... bpf resumed>) = 8 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5366] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5365] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5364] <... exit_group resumed>) = ? [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5367 attached [pid 5366] <... bpf resumed>) = 10 [pid 5365] <... ioctl resumed>) = 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5367] set_robust_list(0x555582d82660, 24 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5367 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5367] <... set_robust_list resumed>) = 0 [pid 5366] exit_group(0 [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5366] <... exit_group resumed>) = ? [pid 5365] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5367] <... prctl resumed>) = 0 [pid 5365] <... bpf resumed>) = 9 [pid 5367] setpgid(0, 0) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5365] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5368 attached [pid 5367] write(3, "1000", 4 [pid 5364] +++ exited with 0 +++ [pid 5368] set_robust_list(0x555582d82660, 24 [pid 5367] <... write resumed>) = 4 [pid 5368] <... set_robust_list resumed>) = 0 [pid 5367] close(3 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5364, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5368 [pid 5368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5367] <... close resumed>) = 0 [pid 5367] write(1, "executing program\n", 18executing program [pid 5366] +++ exited with 0 +++ [pid 5365] <... bpf resumed>) = 10 [pid 5368] <... prctl resumed>) = 0 [pid 5368] setpgid(0, 0 [pid 5367] <... write resumed>) = 18 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5366, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5365] exit_group(0 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5368] <... setpgid resumed>) = 0 [pid 5367] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5365] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5369 attached [pid 5368] <... openat resumed>) = 3 [pid 5368] write(3, "1000", 4 [pid 5369] set_robust_list(0x555582d82660, 24 [pid 5368] <... write resumed>) = 4 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5369 [pid 5369] <... set_robust_list resumed>) = 0 [pid 5368] close(3 [pid 5367] <... bpf resumed>) = 3 [pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5368] <... close resumed>) = 0 [pid 5367] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 executing program [pid 5368] write(1, "executing program\n", 18 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5370 attached [pid 5369] <... prctl resumed>) = 0 [pid 5368] <... write resumed>) = 18 [pid 5367] <... bpf resumed>) = 4 [pid 5370] set_robust_list(0x555582d82660, 24 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5370 [pid 5369] setpgid(0, 0 [pid 5370] <... set_robust_list resumed>) = 0 [pid 5368] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5369] <... setpgid resumed>) = 0 [pid 5367] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5370] setpgid(0, 0) = 0 [pid 5370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5370] <... openat resumed>) = 3 [pid 5367] <... bpf resumed>) = 5 [pid 5370] write(3, "1000", 4 [pid 5367] perf_event_open( [pid 5369] <... openat resumed>) = 3 [pid 5368] <... bpf resumed>) = 3 [pid 5370] <... write resumed>) = 4 [pid 5368] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5370] close(3 [pid 5369] write(3, "1000", 4 [pid 5370] <... close resumed>) = 0 [pid 5369] <... write resumed>) = 4 [pid 5370] write(1, "executing program\n", 18executing program [pid 5369] close(3 [pid 5370] <... write resumed>) = 18 [pid 5369] <... close resumed>) = 0 [pid 5368] <... bpf resumed>) = 4 [pid 5370] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5369] write(1, "executing program\n", 18) = 18 [pid 5368] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5369] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5370] <... bpf resumed>) = 3 [pid 5370] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5369] <... bpf resumed>) = 3 [pid 5369] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5370] <... bpf resumed>) = 4 [pid 5370] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5369] <... bpf resumed>) = 4 [pid 5369] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5368] <... bpf resumed>) = 5 [pid 5365] +++ exited with 0 +++ [pid 5370] <... bpf resumed>) = 5 [pid 5369] <... bpf resumed>) = 5 [pid 5368] perf_event_open( [pid 5367] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5370] perf_event_open( [pid 5369] perf_event_open( [pid 5368] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5367] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5370] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5370] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5369] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5368] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5367] <... bpf resumed>) = 7 [pid 5370] <... bpf resumed>) = 7 [pid 5370] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5369] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5368] <... bpf resumed>) = 7 [pid 5367] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5369] <... bpf resumed>) = 7 [pid 5368] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5370] <... bpf resumed>) = 8 [pid 5370] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5369] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5368] <... bpf resumed>) = 8 [pid 5367] <... bpf resumed>) = 8 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5370] <... ioctl resumed>) = 0 [pid 5370] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5367] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5369] <... bpf resumed>) = 8 [pid 5368] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5367] <... ioctl resumed>) = 0 [pid 5370] <... bpf resumed>) = 9 [pid 5368] <... ioctl resumed>) = 0 [pid 5367] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5370] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5369] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5368] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5370] <... bpf resumed>) = 10 [pid 5369] <... ioctl resumed>) = 0 [pid 5367] <... bpf resumed>) = 9 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5369] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5368] <... bpf resumed>) = 9 [pid 5370] exit_group(0 [pid 5368] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5367] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5371 attached [pid 5370] <... exit_group resumed>) = ? [pid 5369] <... bpf resumed>) = 9 [pid 5368] <... bpf resumed>) = 10 [pid 5367] <... bpf resumed>) = 10 [pid 5371] set_robust_list(0x555582d82660, 24 [pid 5368] exit_group(0 [pid 5371] <... set_robust_list resumed>) = 0 [pid 5369] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5368] <... exit_group resumed>) = ? [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5371 [pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5370] +++ exited with 0 +++ [pid 5369] <... bpf resumed>) = 10 [pid 5367] exit_group(0 [pid 5368] +++ exited with 0 +++ [pid 5367] <... exit_group resumed>) = ? [pid 5371] <... prctl resumed>) = 0 [pid 5369] exit_group(0 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5371] setpgid(0, 0 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5371] <... setpgid resumed>) = 0 [pid 5369] <... exit_group resumed>) = ? [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] <... restart_syscall resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5371] <... openat resumed>) = 3 executing program [pid 5371] write(3, "1000", 4 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5371] <... write resumed>) = 4 [pid 5371] close(3) = 0 [pid 5371] write(1, "executing program\n", 18) = 18 [pid 5371] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5373 attached ./strace-static-x86_64: Process 5372 attached ) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5372 [pid 5372] set_robust_list(0x555582d82660, 24) = 0 [pid 5371] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5371] <... bpf resumed>) = 4 [pid 5373] set_robust_list(0x555582d82660, 24 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5373 [pid 5373] <... set_robust_list resumed>) = 0 [pid 5372] <... prctl resumed>) = 0 [pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5372] setpgid(0, 0 [pid 5373] <... prctl resumed>) = 0 [pid 5372] <... setpgid resumed>) = 0 [pid 5373] setpgid(0, 0 [pid 5372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5373] <... setpgid resumed>) = 0 [pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5372] <... openat resumed>) = 3 [pid 5371] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5372] write(3, "1000", 4 [pid 5373] <... openat resumed>) = 3 [pid 5371] <... bpf resumed>) = 5 [pid 5367] +++ exited with 0 +++ [pid 5373] write(3, "1000", 4 [pid 5372] <... write resumed>) = 4 [pid 5371] perf_event_open( [pid 5373] <... write resumed>) = 4 [pid 5372] close(3 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- executing program executing program [pid 5373] close(3 [pid 5372] <... close resumed>) = 0 [pid 5373] <... close resumed>) = 0 [pid 5372] write(1, "executing program\n", 18 [pid 5373] write(1, "executing program\n", 18 [pid 5372] <... write resumed>) = 18 [pid 5373] <... write resumed>) = 18 [pid 5373] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5372] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5373] <... bpf resumed>) = 3 [pid 5372] <... bpf resumed>) = 3 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5372] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5374 attached [pid 5373] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5374 [pid 5374] set_robust_list(0x555582d82660, 24 [pid 5372] <... bpf resumed>) = 4 [pid 5374] <... set_robust_list resumed>) = 0 [pid 5373] <... bpf resumed>) = 4 [pid 5372] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5373] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5374] <... prctl resumed>) = 0 [pid 5374] setpgid(0, 0) = 0 [pid 5374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5374] write(3, "1000", 4) = 4 [pid 5374] close(3 [pid 5373] <... bpf resumed>) = 5 [pid 5372] <... bpf resumed>) = 5 [pid 5371] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5369] +++ exited with 0 +++ [pid 5374] <... close resumed>) = 0 [pid 5372] perf_event_open( [pid 5371] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5374] write(1, "executing program\n", 18 executing program [pid 5373] perf_event_open( [pid 5372] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5369, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5374] <... write resumed>) = 18 [pid 5373] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5372] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5371] <... bpf resumed>) = 7 [pid 5374] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5373] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5372] <... bpf resumed>) = 7 [pid 5371] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5374] <... bpf resumed>) = 3 [pid 5373] <... bpf resumed>) = 7 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5374] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5373] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5372] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5371] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5375 attached [pid 5373] <... bpf resumed>) = 8 [pid 5372] <... bpf resumed>) = 8 [pid 5372] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5375] set_robust_list(0x555582d82660, 24 [pid 5374] <... bpf resumed>) = 4 [pid 5373] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5372] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5371] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5375 [pid 5375] <... set_robust_list resumed>) = 0 [pid 5374] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5373] <... ioctl resumed>) = 0 [pid 5372] <... bpf resumed>) = 9 [pid 5371] <... ioctl resumed>) = 0 [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5374] <... bpf resumed>) = 5 [pid 5373] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5371] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5375] <... prctl resumed>) = 0 [pid 5374] perf_event_open( [pid 5373] <... bpf resumed>) = 9 [pid 5372] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5371] <... bpf resumed>) = 9 [pid 5375] setpgid(0, 0 [pid 5374] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5375] <... setpgid resumed>) = 0 [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5373] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5372] <... bpf resumed>) = 10 [pid 5374] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5371] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5375] <... openat resumed>) = 3 [pid 5373] <... bpf resumed>) = 10 [pid 5372] exit_group(0 [pid 5371] <... bpf resumed>) = 10 [pid 5375] write(3, "1000", 4 [pid 5374] <... bpf resumed>) = 7 [pid 5373] exit_group(0 [pid 5371] exit_group(0 [pid 5373] <... exit_group resumed>) = ? [pid 5372] <... exit_group resumed>) = ? [pid 5375] <... write resumed>) = 4 [pid 5374] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5371] <... exit_group resumed>) = ? [pid 5375] close(3 [pid 5374] <... bpf resumed>) = 8 [pid 5372] +++ exited with 0 +++ executing program [pid 5375] <... close resumed>) = 0 [pid 5375] write(1, "executing program\n", 18) = 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5372, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5375] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5374] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5373] +++ exited with 0 +++ [pid 5375] <... bpf resumed>) = 3 [pid 5374] <... ioctl resumed>) = 0 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5376 attached [pid 5375] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5374] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5376] set_robust_list(0x555582d82660, 24) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5376 [pid 5375] <... bpf resumed>) = 4 [pid 5376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] <... restart_syscall resumed>) = 0 [pid 5376] <... prctl resumed>) = 0 [pid 5376] setpgid(0, 0 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5375] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5374] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5377 attached [pid 5376] <... setpgid resumed>) = 0 [pid 5374] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5377 [pid 5376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] set_robust_list(0x555582d82660, 24 [pid 5376] <... openat resumed>) = 3 [pid 5377] <... set_robust_list resumed>) = 0 [pid 5376] write(3, "1000", 4 [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5376] <... write resumed>) = 4 [pid 5371] +++ exited with 0 +++ [pid 5376] close(3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5371, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5377] <... prctl resumed>) = 0 [pid 5376] <... close resumed>) = 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5377] setpgid(0, 0 [pid 5376] write(1, "executing program\n", 18executing program [pid 5375] <... bpf resumed>) = 5 [pid 5377] <... setpgid resumed>) = 0 [pid 5376] <... write resumed>) = 18 [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5375] perf_event_open( [pid 5374] <... bpf resumed>) = 10 [pid 5376] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5377] <... openat resumed>) = 3 [pid 5375] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5374] exit_group(0 [pid 5377] write(3, "1000", 4 [pid 5375] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5377] <... write resumed>) = 4 executing program [pid 5376] <... bpf resumed>) = 3 [pid 5374] <... exit_group resumed>) = ? [pid 5377] close(3 [pid 5375] <... bpf resumed>) = 7 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5377] <... close resumed>) = 0 [pid 5377] write(1, "executing program\n", 18) = 18 [pid 5376] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5377] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5376] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5377] <... bpf resumed>) = 3 [pid 5375] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5376] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5377] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5375] <... bpf resumed>) = 8 [pid 5377] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5375] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5378 attached [pid 5376] <... bpf resumed>) = 5 [pid 5374] +++ exited with 0 +++ [pid 5376] perf_event_open( [pid 5375] <... ioctl resumed>) = 0 [pid 5378] set_robust_list(0x555582d82660, 24 [pid 5377] <... bpf resumed>) = 5 [pid 5376] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5378] <... set_robust_list resumed>) = 0 [pid 5375] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5378 [pid 5378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5377] perf_event_open( [pid 5378] <... prctl resumed>) = 0 [pid 5377] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5376] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5375] <... bpf resumed>) = 9 [pid 5378] setpgid(0, 0 [pid 5377] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5378] <... setpgid resumed>) = 0 [pid 5377] <... bpf resumed>) = 7 [pid 5376] <... bpf resumed>) = 7 [pid 5375] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5377] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5379 attached [pid 5379] set_robust_list(0x555582d82660, 24 [pid 5378] <... openat resumed>) = 3 [pid 5377] <... bpf resumed>) = 8 [pid 5376] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5375] <... bpf resumed>) = 10 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5379 [pid 5379] <... set_robust_list resumed>) = 0 [pid 5378] write(3, "1000", 4 [pid 5377] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] <... write resumed>) = 4 [pid 5377] <... ioctl resumed>) = 0 [pid 5376] <... bpf resumed>) = 8 [pid 5375] exit_group(0 [pid 5379] <... prctl resumed>) = 0 [pid 5378] close(3 [pid 5377] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5376] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5379] setpgid(0, 0 [pid 5378] <... close resumed>) = 0 [pid 5377] <... bpf resumed>) = 9 executing program [pid 5376] <... ioctl resumed>) = 0 [pid 5375] <... exit_group resumed>) = ? [pid 5379] <... setpgid resumed>) = 0 [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5378] write(1, "executing program\n", 18 [pid 5377] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5378] <... write resumed>) = 18 [pid 5377] <... bpf resumed>) = 10 [pid 5376] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5378] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5377] exit_group(0 [pid 5376] <... bpf resumed>) = 9 [pid 5377] <... exit_group resumed>) = ? [pid 5379] <... openat resumed>) = 3 [pid 5378] <... bpf resumed>) = 3 [pid 5376] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5379] write(3, "1000", 4 [pid 5378] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5379] <... write resumed>) = 4 [pid 5379] close(3 [pid 5378] <... bpf resumed>) = 4 executing program [pid 5375] +++ exited with 0 +++ [pid 5379] <... close resumed>) = 0 [pid 5379] write(1, "executing program\n", 18) = 18 [pid 5379] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5378] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5235] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5379] <... bpf resumed>) = 3 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5379] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5380 attached [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5380 [pid 5380] set_robust_list(0x555582d82660, 24 [pid 5379] <... bpf resumed>) = 4 [pid 5378] <... bpf resumed>) = 5 [pid 5377] +++ exited with 0 +++ [pid 5376] <... bpf resumed>) = 10 [pid 5380] <... set_robust_list resumed>) = 0 [pid 5379] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5378] perf_event_open( [pid 5376] exit_group(0 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5379] <... bpf resumed>) = 5 [pid 5378] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5376] <... exit_group resumed>) = ? [pid 5379] perf_event_open( [pid 5378] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5379] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5378] <... bpf resumed>) = 7 [pid 5379] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5380] <... prctl resumed>) = 0 [pid 5378] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5376] +++ exited with 0 +++ [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5381 attached [pid 5380] setpgid(0, 0 [pid 5379] <... bpf resumed>) = 7 [pid 5378] <... bpf resumed>) = 8 [pid 5380] <... setpgid resumed>) = 0 [pid 5379] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5381 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5376, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5381] set_robust_list(0x555582d82660, 24 [pid 5378] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5381] <... set_robust_list resumed>) = 0 [pid 5380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5379] <... bpf resumed>) = 8 [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5378] <... ioctl resumed>) = 0 [pid 5380] <... openat resumed>) = 3 [pid 5381] <... prctl resumed>) = 0 [pid 5379] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5378] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5381] setpgid(0, 0 [pid 5380] write(3, "1000", 4 [pid 5379] <... ioctl resumed>) = 0 [pid 5381] <... setpgid resumed>) = 0 [pid 5380] <... write resumed>) = 4 [pid 5379] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5378] <... bpf resumed>) = 9 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5380] close(3 [pid 5233] <... restart_syscall resumed>) = 0 executing program [pid 5380] <... close resumed>) = 0 [pid 5379] <... bpf resumed>) = 9 [pid 5380] write(1, "executing program\n", 18 [pid 5379] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5380] <... write resumed>) = 18 [pid 5378] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5381] <... openat resumed>) = 3 [pid 5380] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5381] write(3, "1000", 4 [pid 5379] <... bpf resumed>) = 10 [pid 5378] <... bpf resumed>) = 10 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5381] <... write resumed>) = 4 [pid 5380] <... bpf resumed>) = 3 [pid 5379] exit_group(0 [pid 5378] exit_group(0 [pid 5381] close(3 [pid 5380] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5379] <... exit_group resumed>) = ? executing program [pid 5378] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5382 attached [pid 5381] <... close resumed>) = 0 [pid 5382] set_robust_list(0x555582d82660, 24 [pid 5381] write(1, "executing program\n", 18 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5382 [pid 5382] <... set_robust_list resumed>) = 0 [pid 5381] <... write resumed>) = 18 [pid 5382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5381] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5382] <... prctl resumed>) = 0 [pid 5381] <... bpf resumed>) = 3 [pid 5382] setpgid(0, 0) = 0 [pid 5382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5381] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5382] <... openat resumed>) = 3 [pid 5380] <... bpf resumed>) = 4 [pid 5381] <... bpf resumed>) = 4 [pid 5380] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5382] write(3, "1000", 4 [pid 5381] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5382] <... write resumed>) = 4 [pid 5382] close(3) = 0 [pid 5382] write(1, "executing program\n", 18) = 18 [pid 5382] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5381] <... bpf resumed>) = 5 [pid 5380] <... bpf resumed>) = 5 [pid 5379] +++ exited with 0 +++ [pid 5381] perf_event_open( [pid 5380] perf_event_open( [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5382] <... bpf resumed>) = 3 [pid 5381] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5380] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5378] +++ exited with 0 +++ [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5381] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5383 attached [pid 5382] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5380] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5378, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5383] set_robust_list(0x555582d82660, 24 [pid 5381] <... bpf resumed>) = 7 [pid 5380] <... bpf resumed>) = 7 [pid 5382] <... bpf resumed>) = 4 [pid 5380] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5383] <... set_robust_list resumed>) = 0 [pid 5382] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5381] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5383 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5382] <... bpf resumed>) = 5 [pid 5380] <... bpf resumed>) = 8 [pid 5383] <... prctl resumed>) = 0 [pid 5382] perf_event_open( [pid 5381] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5384 attached [pid 5383] setpgid(0, 0 [pid 5380] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5384] set_robust_list(0x555582d82660, 24 [pid 5382] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5380] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5384 [pid 5383] <... setpgid resumed>) = 0 [pid 5384] <... set_robust_list resumed>) = 0 [pid 5382] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5381] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5380] <... bpf resumed>) = 9 [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5382] <... bpf resumed>) = 7 [pid 5380] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5383] <... openat resumed>) = 3 [pid 5382] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5381] <... ioctl resumed>) = 0 [pid 5384] <... prctl resumed>) = 0 [pid 5383] write(3, "1000", 4 [pid 5382] <... bpf resumed>) = 8 [pid 5381] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5380] <... bpf resumed>) = 10 executing program [pid 5384] setpgid(0, 0 [pid 5383] <... write resumed>) = 4 [pid 5384] <... setpgid resumed>) = 0 [pid 5383] close(3 [pid 5382] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5380] exit_group(0 [pid 5383] <... close resumed>) = 0 [pid 5382] <... ioctl resumed>) = 0 [pid 5383] write(1, "executing program\n", 18) = 18 [pid 5383] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5381] <... bpf resumed>) = 9 [pid 5384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5382] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5380] <... exit_group resumed>) = ? [pid 5383] <... bpf resumed>) = 3 [pid 5384] <... openat resumed>) = 3 [pid 5383] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5382] <... bpf resumed>) = 9 [pid 5381] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5380] +++ exited with 0 +++ [pid 5384] write(3, "1000", 4 [pid 5382] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5384] <... write resumed>) = 4 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5380, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5384] close(3 [pid 5383] <... bpf resumed>) = 4 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5383] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5384] <... close resumed>) = 0 [pid 5384] write(1, "executing program\n", 18) = 18 [pid 5384] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5383] <... bpf resumed>) = 5 [pid 5382] <... bpf resumed>) = 10 [pid 5381] <... bpf resumed>) = 10 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5383] perf_event_open( [pid 5382] exit_group(0 [pid 5384] <... bpf resumed>) = 3 [pid 5383] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5382] <... exit_group resumed>) = ? [pid 5381] exit_group(0 [pid 5383] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5383] <... bpf resumed>) = 7 [pid 5381] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5385 attached [pid 5383] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5385] set_robust_list(0x555582d82660, 24 [pid 5384] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5385] <... set_robust_list resumed>) = 0 [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5384] <... bpf resumed>) = 4 [pid 5383] <... bpf resumed>) = 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5385 [pid 5385] <... prctl resumed>) = 0 [pid 5383] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5385] setpgid(0, 0 [pid 5383] <... ioctl resumed>) = 0 [pid 5382] +++ exited with 0 +++ [pid 5385] <... setpgid resumed>) = 0 [pid 5384] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5383] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5382, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5384] <... bpf resumed>) = 5 [pid 5383] <... bpf resumed>) = 9 [pid 5381] +++ exited with 0 +++ [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5384] perf_event_open( [pid 5233] <... restart_syscall resumed>) = 0 [pid 5384] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5383] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5384] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5385] <... openat resumed>) = 3 [pid 5384] <... bpf resumed>) = 7 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5385] write(3, "1000", 4 [pid 5383] <... bpf resumed>) = 10 ./strace-static-x86_64: Process 5386 attached [pid 5385] <... write resumed>) = 4 [pid 5384] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5383] exit_group(0 [pid 5386] set_robust_list(0x555582d82660, 24 [pid 5385] close(3 [pid 5239] <... restart_syscall resumed>) = 0 executing program [pid 5385] <... close resumed>) = 0 [pid 5383] <... exit_group resumed>) = ? [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5386 [pid 5385] write(1, "executing program\n", 18) = 18 [pid 5386] <... set_robust_list resumed>) = 0 [pid 5385] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5385] <... bpf resumed>) = 3 [pid 5384] <... bpf resumed>) = 8 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5386] <... prctl resumed>) = 0 [pid 5386] setpgid(0, 0 [pid 5384] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5387 attached [pid 5386] <... setpgid resumed>) = 0 [pid 5385] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5384] <... ioctl resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5387 [pid 5387] set_robust_list(0x555582d82660, 24 [pid 5386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5385] <... bpf resumed>) = 4 [pid 5384] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5387] <... set_robust_list resumed>) = 0 [pid 5385] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5386] <... openat resumed>) = 3 [pid 5387] <... prctl resumed>) = 0 [pid 5384] <... bpf resumed>) = 9 [pid 5387] setpgid(0, 0 [pid 5386] write(3, "1000", 4 [pid 5384] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5387] <... setpgid resumed>) = 0 [pid 5386] <... write resumed>) = 4 [pid 5384] <... bpf resumed>) = 10 [pid 5385] <... bpf resumed>) = 5 [pid 5383] +++ exited with 0 +++ [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5385] perf_event_open( [pid 5386] close(3 [pid 5384] exit_group(0 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5387] <... openat resumed>) = 3 [pid 5386] <... close resumed>) = 0 [pid 5385] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5238] restart_syscall(<... resuming interrupted clone ...> executing program [pid 5387] write(3, "1000", 4 [pid 5386] write(1, "executing program\n", 18 [pid 5385] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5384] <... exit_group resumed>) = ? [pid 5387] <... write resumed>) = 4 [pid 5386] <... write resumed>) = 18 [pid 5385] <... bpf resumed>) = 7 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5386] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5387] close(3 [pid 5385] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5387] <... close resumed>) = 0 [pid 5386] <... bpf resumed>) = 3 [pid 5385] <... bpf resumed>) = 8 [pid 5387] write(1, "executing program\n", 18executing program ) = 18 [pid 5387] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5387] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5388 attached [pid 5387] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5385] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5388] set_robust_list(0x555582d82660, 24 [pid 5386] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5385] <... ioctl resumed>) = 0 [pid 5388] <... set_robust_list resumed>) = 0 [pid 5387] <... bpf resumed>) = 4 [pid 5387] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5387] <... bpf resumed>) = 5 [pid 5386] <... bpf resumed>) = 4 [pid 5385] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5384] +++ exited with 0 +++ [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5388 [pid 5388] <... prctl resumed>) = 0 [pid 5387] perf_event_open( [pid 5386] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5388] setpgid(0, 0 [pid 5386] <... bpf resumed>) = 5 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5384, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5386] perf_event_open( [pid 5387] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5386] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5385] <... bpf resumed>) = 9 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5388] <... setpgid resumed>) = 0 [pid 5387] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5386] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5385] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5389 attached [pid 5388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5387] <... bpf resumed>) = 7 [pid 5389] set_robust_list(0x555582d82660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5389 [pid 5389] <... set_robust_list resumed>) = 0 [pid 5387] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5386] <... bpf resumed>) = 7 [pid 5388] <... openat resumed>) = 3 [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5389] setpgid(0, 0) = 0 [pid 5388] write(3, "1000", 4 [pid 5387] <... bpf resumed>) = 8 [pid 5386] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5385] <... bpf resumed>) = 10 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5388] <... write resumed>) = 4 [pid 5387] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5386] <... bpf resumed>) = 8 [pid 5385] exit_group(0 [pid 5389] <... openat resumed>) = 3 [pid 5388] close(3 [pid 5387] <... ioctl resumed>) = 0 [pid 5386] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5385] <... exit_group resumed>) = ? [pid 5388] <... close resumed>) = 0 [pid 5387] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5389] write(3, "1000", 4 [pid 5388] write(1, "executing program\n", 18 [pid 5387] <... bpf resumed>) = 9 [pid 5386] <... ioctl resumed>) = 0 executing program [pid 5389] <... write resumed>) = 4 [pid 5389] close(3 [pid 5388] <... write resumed>) = 18 [pid 5389] <... close resumed>) = 0 [pid 5388] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5387] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5386] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5389] write(1, "executing program\n", 18executing program ) = 18 [pid 5386] <... bpf resumed>) = 9 [pid 5385] +++ exited with 0 +++ [pid 5389] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5388] <... bpf resumed>) = 3 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5386] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5235] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5388] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5390 attached [pid 5389] <... bpf resumed>) = 3 [pid 5389] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5388] <... bpf resumed>) = 4 [pid 5390] set_robust_list(0x555582d82660, 24 [pid 5387] <... bpf resumed>) = 10 [pid 5386] <... bpf resumed>) = 10 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5390 [pid 5390] <... set_robust_list resumed>) = 0 [pid 5388] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5388] <... bpf resumed>) = 5 [pid 5390] <... prctl resumed>) = 0 [pid 5389] <... bpf resumed>) = 4 [pid 5390] setpgid(0, 0 [pid 5388] perf_event_open( [pid 5387] exit_group(0 [pid 5386] exit_group(0 [pid 5390] <... setpgid resumed>) = 0 [pid 5389] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5388] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5387] <... exit_group resumed>) = ? [pid 5386] <... exit_group resumed>) = ? [pid 5390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5389] <... bpf resumed>) = 5 [pid 5390] <... openat resumed>) = 3 [pid 5388] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5390] write(3, "1000", 4) = 4 [pid 5388] <... bpf resumed>) = 7 [pid 5390] close(3) = 0 [pid 5388] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5390] write(1, "executing program\n", 18executing program [pid 5389] perf_event_open( [pid 5390] <... write resumed>) = 18 [pid 5390] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5389] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5389] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5388] <... bpf resumed>) = 8 [pid 5387] +++ exited with 0 +++ [pid 5386] +++ exited with 0 +++ [pid 5390] <... bpf resumed>) = 3 [pid 5389] <... bpf resumed>) = 7 [pid 5388] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5386, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5389] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5390] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5389] <... bpf resumed>) = 8 [pid 5388] <... ioctl resumed>) = 0 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5391 attached [pid 5389] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5388] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5390] <... bpf resumed>) = 4 [pid 5391] set_robust_list(0x555582d82660, 24 [pid 5389] <... ioctl resumed>) = 0 [pid 5391] <... set_robust_list resumed>) = 0 [pid 5389] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5388] <... bpf resumed>) = 9 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5391 [pid 5390] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5389] <... bpf resumed>) = 9 [pid 5391] setpgid(0, 0 [pid 5390] <... bpf resumed>) = 5 [pid 5389] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5388] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5391] <... setpgid resumed>) = 0 [pid 5390] perf_event_open( [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5390] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5391] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5392 attached [pid 5390] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5391] write(3, "1000", 4 [pid 5389] <... bpf resumed>) = 10 [pid 5388] <... bpf resumed>) = 10 [pid 5392] set_robust_list(0x555582d82660, 24 [pid 5391] <... write resumed>) = 4 [pid 5390] <... bpf resumed>) = 7 [pid 5389] exit_group(0 [pid 5391] close(3 [pid 5388] exit_group(0 [pid 5392] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5392 [pid 5390] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5388] <... exit_group resumed>) = ? [pid 5392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5391] <... close resumed>) = 0 [pid 5389] <... exit_group resumed>) = ? executing program [pid 5391] write(1, "executing program\n", 18 [pid 5390] <... bpf resumed>) = 8 [pid 5391] <... write resumed>) = 18 [pid 5392] <... prctl resumed>) = 0 [pid 5391] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5392] setpgid(0, 0 [pid 5390] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5388] +++ exited with 0 +++ [pid 5392] <... setpgid resumed>) = 0 [pid 5391] <... bpf resumed>) = 3 [pid 5390] <... ioctl resumed>) = 0 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5391] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5391] <... bpf resumed>) = 4 [pid 5390] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5392] <... openat resumed>) = 3 [pid 5391] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5392] write(3, "1000", 4 [pid 5390] <... bpf resumed>) = 9 [pid 5392] <... write resumed>) = 4 [pid 5390] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5392] close(3) = 0 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5392] write(1, "executing program\n", 18executing program ) = 18 ./strace-static-x86_64: Process 5393 attached [pid 5392] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5393] set_robust_list(0x555582d82660, 24 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5393 [pid 5393] <... set_robust_list resumed>) = 0 [pid 5392] <... bpf resumed>) = 3 [pid 5391] <... bpf resumed>) = 5 [pid 5390] <... bpf resumed>) = 10 [pid 5389] +++ exited with 0 +++ [pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5392] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5391] perf_event_open( [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- [pid 5392] <... bpf resumed>) = 4 [pid 5391] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5393] <... prctl resumed>) = 0 [pid 5390] exit_group(0 [pid 5393] setpgid(0, 0 [pid 5392] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5391] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5393] <... setpgid resumed>) = 0 [pid 5392] <... bpf resumed>) = 5 [pid 5391] <... bpf resumed>) = 7 [pid 5392] perf_event_open( [pid 5391] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5392] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5390] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5394 attached [pid 5393] <... openat resumed>) = 3 [pid 5392] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5391] <... bpf resumed>) = 8 [pid 5394] set_robust_list(0x555582d82660, 24 [pid 5392] <... bpf resumed>) = 7 [pid 5391] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5394] <... set_robust_list resumed>) = 0 [pid 5392] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5393] write(3, "1000", 4 [pid 5392] <... bpf resumed>) = 8 [pid 5391] <... ioctl resumed>) = 0 [pid 5390] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5394 [pid 5393] <... write resumed>) = 4 [pid 5394] <... prctl resumed>) = 0 [pid 5393] close(3 [pid 5392] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5391] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5390, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5394] setpgid(0, 0 [pid 5393] <... close resumed>) = 0 [pid 5392] <... ioctl resumed>) = 0 [pid 5391] <... bpf resumed>) = 9 executing program [pid 5394] <... setpgid resumed>) = 0 [pid 5393] write(1, "executing program\n", 18) = 18 [pid 5392] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5391] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5393] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5394] <... openat resumed>) = 3 [pid 5392] <... bpf resumed>) = 9 [pid 5394] write(3, "1000", 4 [pid 5392] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5394] <... write resumed>) = 4 [pid 5392] <... bpf resumed>) = 10 [pid 5391] <... bpf resumed>) = 10 [pid 5394] close(3 [pid 5392] exit_group(0./strace-static-x86_64: Process 5395 attached [pid 5394] <... close resumed>) = 0 [pid 5393] <... bpf resumed>) = 3 [pid 5392] <... exit_group resumed>) = ? [pid 5391] exit_group(0 [pid 5395] set_robust_list(0x555582d82660, 24executing program [pid 5394] write(1, "executing program\n", 18 [pid 5393] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5391] <... exit_group resumed>) = ? [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5395 [pid 5395] <... set_robust_list resumed>) = 0 [pid 5394] <... write resumed>) = 18 [pid 5393] <... bpf resumed>) = 4 [pid 5392] +++ exited with 0 +++ [pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5392, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5394] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5395] <... prctl resumed>) = 0 [pid 5393] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5394] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5397 attached [pid 5395] setpgid(0, 0 [pid 5393] <... bpf resumed>) = 5 [pid 5395] <... setpgid resumed>) = 0 [pid 5397] set_robust_list(0x555582d82660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5397 [pid 5397] <... set_robust_list resumed>) = 0 [pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5394] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5393] perf_event_open( [pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5395] <... openat resumed>) = 3 [pid 5397] <... prctl resumed>) = 0 [pid 5397] setpgid(0, 0) = 0 [pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5395] write(3, "1000", 4 [pid 5394] <... bpf resumed>) = 4 [pid 5397] <... openat resumed>) = 3 [pid 5395] <... write resumed>) = 4 [pid 5394] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5397] write(3, "1000", 4 [pid 5395] close(3 [pid 5394] <... bpf resumed>) = 5 [pid 5397] <... write resumed>) = 4 [pid 5395] <... close resumed>) = 0 [pid 5397] close(3 [pid 5395] write(1, "executing program\n", 18executing program [pid 5394] perf_event_open( [pid 5397] <... close resumed>) = 0 [pid 5395] <... write resumed>) = 18 [pid 5397] write(1, "executing program\n", 18executing program [pid 5395] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5397] <... write resumed>) = 18 [pid 5394] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5393] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5391] +++ exited with 0 +++ [pid 5395] <... bpf resumed>) = 3 [pid 5397] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5395] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5394] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5393] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5397] <... bpf resumed>) = 3 [pid 5397] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5394] <... bpf resumed>) = 7 [pid 5393] <... bpf resumed>) = 7 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5395] <... bpf resumed>) = 4 [pid 5394] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5393] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5398 attached [pid 5395] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5394] <... bpf resumed>) = 8 [pid 5395] perf_event_open( [pid 5397] <... bpf resumed>) = 4 [pid 5395] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5398] set_robust_list(0x555582d82660, 24 [pid 5393] <... bpf resumed>) = 8 [pid 5398] <... set_robust_list resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5398 [pid 5398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5397] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5395] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5394] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5393] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5398] <... prctl resumed>) = 0 [pid 5397] <... bpf resumed>) = 5 [pid 5395] <... bpf resumed>) = 7 [pid 5398] setpgid(0, 0 [pid 5395] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5398] <... setpgid resumed>) = 0 [pid 5397] perf_event_open( [pid 5394] <... ioctl resumed>) = 0 [pid 5393] <... ioctl resumed>) = 0 [pid 5395] <... bpf resumed>) = 8 [pid 5394] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5395] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5397] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5395] <... ioctl resumed>) = 0 [pid 5394] <... bpf resumed>) = 9 [pid 5393] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5397] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5395] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5394] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5398] <... openat resumed>) = 3 [pid 5397] <... bpf resumed>) = 7 [pid 5395] <... bpf resumed>) = 9 [pid 5393] <... bpf resumed>) = 9 [pid 5398] write(3, "1000", 4 [pid 5397] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5394] <... bpf resumed>) = 10 [pid 5393] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5398] <... write resumed>) = 4 [pid 5397] <... bpf resumed>) = 8 [pid 5395] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5394] exit_group(0 [pid 5393] <... bpf resumed>) = 10 [pid 5398] close(3 [pid 5397] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5395] <... bpf resumed>) = 10 [pid 5394] <... exit_group resumed>) = ? [pid 5398] <... close resumed>) = 0 [pid 5397] <... ioctl resumed>) = 0 [pid 5395] exit_group(0 [pid 5393] exit_group(0executing program [pid 5398] write(1, "executing program\n", 18 [pid 5397] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5395] <... exit_group resumed>) = ? [pid 5393] <... exit_group resumed>) = ? [pid 5398] <... write resumed>) = 18 [pid 5397] <... bpf resumed>) = 9 [pid 5394] +++ exited with 0 +++ [pid 5398] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5397] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5394, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5398] <... bpf resumed>) = 3 [pid 5398] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5398] <... bpf resumed>) = 4 [pid 5398] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5399 attached [pid 5399] set_robust_list(0x555582d82660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5399 [pid 5399] <... set_robust_list resumed>) = 0 [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5399] setpgid(0, 0 [pid 5397] <... bpf resumed>) = 10 [pid 5395] +++ exited with 0 +++ [pid 5399] <... setpgid resumed>) = 0 [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5395, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5397] exit_group(0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5399] <... openat resumed>) = 3 [pid 5397] <... exit_group resumed>) = ? [pid 5399] write(3, "1000", 4./strace-static-x86_64: Process 5400 attached [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5400 [pid 5400] set_robust_list(0x555582d82660, 24 [pid 5399] <... write resumed>) = 4 [pid 5398] <... bpf resumed>) = 5 [pid 5393] +++ exited with 0 +++ [pid 5400] <... set_robust_list resumed>) = 0 [pid 5399] close(3 [pid 5400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5399] <... close resumed>) = 0 [pid 5400] <... prctl resumed>) = 0 [pid 5399] write(1, "executing program\n", 18executing program [pid 5400] setpgid(0, 0 [pid 5399] <... write resumed>) = 18 [pid 5398] perf_event_open( [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5393, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5400] <... setpgid resumed>) = 0 [pid 5399] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] <... bpf resumed>) = 3 [pid 5399] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5401 attached [pid 5400] <... openat resumed>) = 3 [pid 5401] set_robust_list(0x555582d82660, 24) = 0 [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5400] write(3, "1000", 4 [pid 5399] <... bpf resumed>) = 4 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5401 [pid 5401] <... prctl resumed>) = 0 [pid 5400] <... write resumed>) = 4 [pid 5400] close(3executing program [pid 5401] setpgid(0, 0 [pid 5400] <... close resumed>) = 0 [pid 5399] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5400] write(1, "executing program\n", 18) = 18 [pid 5401] <... setpgid resumed>) = 0 [pid 5400] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5398] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5399] <... bpf resumed>) = 5 [pid 5398] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5397] +++ exited with 0 +++ [pid 5401] write(3, "1000", 4 [pid 5400] <... bpf resumed>) = 3 [pid 5399] perf_event_open( [pid 5398] <... bpf resumed>) = 7 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5397, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5401] <... write resumed>) = 4 [pid 5400] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5401] close(3 [pid 5399] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5398] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5401] <... close resumed>) = 0 [pid 5400] <... bpf resumed>) = 4 executing program [pid 5401] write(1, "executing program\n", 18 [pid 5400] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5399] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5401] <... write resumed>) = 18 [pid 5400] <... bpf resumed>) = 5 [pid 5399] <... bpf resumed>) = 7 [pid 5398] <... bpf resumed>) = 8 [pid 5401] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5400] perf_event_open( [pid 5399] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5398] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5401] <... bpf resumed>) = 3 [pid 5400] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5399] <... bpf resumed>) = 8 [pid 5398] <... ioctl resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5401] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5400] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5398] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5399] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5400] <... bpf resumed>) = 7 [pid 5401] <... bpf resumed>) = 4 [pid 5399] <... ioctl resumed>) = 0 [pid 5398] <... bpf resumed>) = 9 [pid 5401] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5400] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5399] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5398] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5401] <... bpf resumed>) = 5 [pid 5400] <... bpf resumed>) = 8 [pid 5399] <... bpf resumed>) = 9 [pid 5398] <... bpf resumed>) = 10 [pid 5401] perf_event_open( [pid 5400] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5402 attached [pid 5401] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5400] <... ioctl resumed>) = 0 [pid 5402] set_robust_list(0x555582d82660, 24 [pid 5401] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5399] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5398] exit_group(0 [pid 5402] <... set_robust_list resumed>) = 0 [pid 5401] <... bpf resumed>) = 7 [pid 5400] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5402 [pid 5402] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5399] <... bpf resumed>) = 10 [pid 5398] <... exit_group resumed>) = ? [pid 5402] <... prctl resumed>) = 0 [pid 5401] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5400] <... bpf resumed>) = 9 [pid 5402] setpgid(0, 0 [pid 5399] exit_group(0 [pid 5402] <... setpgid resumed>) = 0 [pid 5402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5399] <... exit_group resumed>) = ? [pid 5402] <... openat resumed>) = 3 [pid 5401] <... bpf resumed>) = 8 [pid 5400] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5402] write(3, "1000", 4 [pid 5401] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5402] <... write resumed>) = 4 [pid 5401] <... ioctl resumed>) = 0 [pid 5402] close(3) = 0 [pid 5401] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5402] write(1, "executing program\n", 18executing program ) = 18 [pid 5401] <... bpf resumed>) = 9 [pid 5398] +++ exited with 0 +++ [pid 5402] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5401] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5402] <... bpf resumed>) = 3 [pid 5402] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5401] <... bpf resumed>) = 10 [pid 5400] <... bpf resumed>) = 10 [pid 5399] +++ exited with 0 +++ [pid 5239] <... restart_syscall resumed>) = 0 [pid 5402] <... bpf resumed>) = 4 [pid 5401] exit_group(0 [pid 5402] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5401] <... exit_group resumed>) = ? [pid 5400] exit_group(0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5399, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5402] <... bpf resumed>) = 5 [pid 5400] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5403 attached [pid 5402] perf_event_open( [pid 5403] set_robust_list(0x555582d82660, 24 [pid 5401] +++ exited with 0 +++ [pid 5403] <... set_robust_list resumed>) = 0 [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5403 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5401, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5403] <... prctl resumed>) = 0 [pid 5403] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5404 attached [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5404] set_robust_list(0x555582d82660, 24) = 0 ./strace-static-x86_64: Process 5405 attached [pid 5403] <... openat resumed>) = 3 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5404 [pid 5405] set_robust_list(0x555582d82660, 24 [pid 5404] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5403] write(3, "1000", 4 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5405 [pid 5405] <... set_robust_list resumed>) = 0 [pid 5404] <... prctl resumed>) = 0 [pid 5403] <... write resumed>) = 4 [pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5404] setpgid(0, 0 [pid 5403] close(3 [pid 5405] <... prctl resumed>) = 0 [pid 5404] <... setpgid resumed>) = 0 [pid 5403] <... close resumed>) = 0 [pid 5405] setpgid(0, 0) = 0 [pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5403] write(1, "executing program\n", 18executing program ) = 18 [pid 5404] <... openat resumed>) = 3 [pid 5403] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5404] write(3, "1000", 4) = 4 [pid 5404] close(3) = 0 [pid 5404] write(1, "executing program\n", 18) = 18 [pid 5404] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5403] <... bpf resumed>) = 3 [pid 5405] <... openat resumed>) = 3 [pid 5400] +++ exited with 0 +++ [pid 5405] write(3, "1000", 4) = 4 [pid 5404] <... bpf resumed>) = 3 [pid 5402] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5402] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5405] close(3 [pid 5404] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5403] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 executing program [pid 5402] <... bpf resumed>) = 7 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5400, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5405] <... close resumed>) = 0 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5405] write(1, "executing program\n", 18) = 18 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5405] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5404] <... bpf resumed>) = 4 [pid 5403] <... bpf resumed>) = 4 [pid 5402] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5405] <... bpf resumed>) = 3 [pid 5405] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5404] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5403] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5402] <... bpf resumed>) = 8 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5406 attached [pid 5405] <... bpf resumed>) = 4 [pid 5402] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5404] <... bpf resumed>) = 5 [pid 5403] <... bpf resumed>) = 5 [pid 5406] set_robust_list(0x555582d82660, 24 [pid 5405] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5404] perf_event_open( [pid 5403] perf_event_open( [pid 5402] <... ioctl resumed>) = 0 [pid 5406] <... set_robust_list resumed>) = 0 [pid 5402] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5405] <... bpf resumed>) = 5 [pid 5404] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5403] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5406 [pid 5405] perf_event_open( [pid 5406] <... prctl resumed>) = 0 [pid 5405] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5404] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5403] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5402] <... bpf resumed>) = 9 [pid 5406] setpgid(0, 0 [pid 5405] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5404] <... bpf resumed>) = 7 [pid 5403] <... bpf resumed>) = 7 [pid 5406] <... setpgid resumed>) = 0 [pid 5405] <... bpf resumed>) = 7 [pid 5402] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5405] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5404] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5403] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5402] <... bpf resumed>) = 10 [pid 5406] <... openat resumed>) = 3 [pid 5406] write(3, "1000", 4 [pid 5405] <... bpf resumed>) = 8 [pid 5404] <... bpf resumed>) = 8 [pid 5406] <... write resumed>) = 4 [pid 5405] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5403] <... bpf resumed>) = 8 [pid 5402] exit_group(0 [pid 5406] close(3 [pid 5405] <... ioctl resumed>) = 0 [pid 5406] <... close resumed>) = 0 [pid 5405] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5404] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5403] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5402] <... exit_group resumed>) = ? [pid 5406] write(1, "executing program\n", 18 [pid 5405] <... bpf resumed>) = 9 [pid 5404] <... ioctl resumed>) = 0 [pid 5403] <... ioctl resumed>) = 0 [pid 5405] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16executing program ) = 10 [pid 5406] <... write resumed>) = 18 [pid 5404] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5403] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5402] +++ exited with 0 +++ [pid 5406] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5405] exit_group(0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5403] <... bpf resumed>) = 9 [pid 5405] <... exit_group resumed>) = ? [pid 5404] <... bpf resumed>) = 9 [pid 5406] <... bpf resumed>) = 3 [pid 5403] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5404] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5406] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5406] <... bpf resumed>) = 4 ./strace-static-x86_64: Process 5407 attached [pid 5406] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5407] set_robust_list(0x555582d82660, 24) = 0 [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5406] <... bpf resumed>) = 5 [pid 5405] +++ exited with 0 +++ [pid 5404] <... bpf resumed>) = 10 [pid 5403] <... bpf resumed>) = 10 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5407 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5405, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5406] perf_event_open( [pid 5407] setpgid(0, 0 [pid 5406] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5404] exit_group(0 [pid 5403] exit_group(0 [pid 5407] <... setpgid resumed>) = 0 [pid 5404] <... exit_group resumed>) = ? [pid 5406] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 7 [pid 5403] <... exit_group resumed>) = ? [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5406] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5407] <... openat resumed>) = 3 [pid 5407] write(3, "1000", 4) = 4 [pid 5406] <... bpf resumed>) = 8 [pid 5407] close(3) = 0 [pid 5407] write(1, "executing program\n", 18executing program ) = 18 [pid 5406] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5407] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5406] <... ioctl resumed>) = 0 [pid 5406] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 9 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5407] <... bpf resumed>) = 3 [pid 5406] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5407] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 5408 attached [pid 5403] +++ exited with 0 +++ [pid 5408] set_robust_list(0x555582d82660, 24 [pid 5407] <... bpf resumed>) = 4 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5408 [pid 5408] <... set_robust_list resumed>) = 0 [pid 5407] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5408] <... prctl resumed>) = 0 [pid 5408] setpgid(0, 0) = 0 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5406] <... bpf resumed>) = 10 [pid 5408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5406] exit_group(0 [pid 5408] <... openat resumed>) = 3 [pid 5406] <... exit_group resumed>) = ? [pid 5408] write(3, "1000", 4 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5408] <... write resumed>) = 4 [pid 5408] close(3./strace-static-x86_64: Process 5409 attached ) = 0 [pid 5409] set_robust_list(0x555582d82660, 24 [pid 5408] write(1, "executing program\n", 18 [pid 5407] <... bpf resumed>) = 5 [pid 5404] +++ exited with 0 +++ executing program [pid 5409] <... set_robust_list resumed>) = 0 [pid 5408] <... write resumed>) = 18 [pid 5407] perf_event_open( [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5409 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5404, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5408] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5409] <... prctl resumed>) = 0 [pid 5409] setpgid(0, 0) = 0 [pid 5408] <... bpf resumed>) = 3 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5408] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5409] <... openat resumed>) = 3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5409] write(3, "1000", 4) = 4 [pid 5408] <... bpf resumed>) = 4 executing program [pid 5408] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5410 attached [pid 5409] close(3 [pid 5407] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5410] set_robust_list(0x555582d82660, 24 [pid 5409] <... close resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5410 [pid 5410] <... set_robust_list resumed>) = 0 [pid 5409] write(1, "executing program\n", 18 [pid 5407] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5409] <... write resumed>) = 18 [pid 5409] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5410] <... prctl resumed>) = 0 [pid 5407] <... bpf resumed>) = 7 [pid 5410] setpgid(0, 0 [pid 5407] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5410] <... setpgid resumed>) = 0 [pid 5409] <... bpf resumed>) = 3 [pid 5409] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5407] <... bpf resumed>) = 8 [pid 5410] <... openat resumed>) = 3 [pid 5409] <... bpf resumed>) = 4 [pid 5410] write(3, "1000", 4) = 4 [pid 5410] close(3) = 0 [pid 5409] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5408] <... bpf resumed>) = 5 [pid 5407] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5406] +++ exited with 0 +++ [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5408] perf_event_open( [pid 5410] write(1, "executing program\n", 18executing program [pid 5409] <... bpf resumed>) = 5 [pid 5407] <... ioctl resumed>) = 0 [pid 5410] <... write resumed>) = 18 [pid 5409] perf_event_open( [pid 5408] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5407] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5410] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5409] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5408] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5411 attached [pid 5410] <... bpf resumed>) = 3 [pid 5409] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5408] <... bpf resumed>) = 7 [pid 5407] <... bpf resumed>) = 9 [pid 5411] set_robust_list(0x555582d82660, 24 [pid 5410] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5409] <... bpf resumed>) = 7 [pid 5407] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5408] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5411] <... set_robust_list resumed>) = 0 [pid 5409] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5407] <... bpf resumed>) = 10 [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5410] <... bpf resumed>) = 4 [pid 5409] <... bpf resumed>) = 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5411 [pid 5411] <... prctl resumed>) = 0 [pid 5411] setpgid(0, 0 [pid 5409] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5408] <... bpf resumed>) = 8 [pid 5407] exit_group(0 [pid 5410] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5408] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5407] <... exit_group resumed>) = ? [pid 5411] <... setpgid resumed>) = 0 [pid 5410] <... bpf resumed>) = 5 [pid 5409] <... ioctl resumed>) = 0 [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5410] perf_event_open( [pid 5408] <... ioctl resumed>) = 0 [pid 5408] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5411] <... openat resumed>) = 3 [pid 5410] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5409] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5411] write(3, "1000", 4 [pid 5410] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5408] <... bpf resumed>) = 9 [pid 5407] +++ exited with 0 +++ [pid 5411] <... write resumed>) = 4 [pid 5410] <... bpf resumed>) = 7 [pid 5409] <... bpf resumed>) = 9 [pid 5408] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5411] close(3) = 0 executing program [pid 5410] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5411] write(1, "executing program\n", 18 [pid 5409] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5407, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5411] <... write resumed>) = 18 [pid 5410] <... bpf resumed>) = 8 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5411] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5412 attached [pid 5410] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5412] set_robust_list(0x555582d82660, 24 [pid 5410] <... ioctl resumed>) = 0 [pid 5409] <... bpf resumed>) = 10 [pid 5408] <... bpf resumed>) = 10 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5412 [pid 5412] <... set_robust_list resumed>) = 0 [pid 5411] <... bpf resumed>) = 3 [pid 5409] exit_group(0 [pid 5412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5410] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5408] exit_group(0 [pid 5412] <... prctl resumed>) = 0 [pid 5411] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5409] <... exit_group resumed>) = ? [pid 5412] setpgid(0, 0 [pid 5410] <... bpf resumed>) = 9 [pid 5408] <... exit_group resumed>) = ? [pid 5412] <... setpgid resumed>) = 0 [pid 5411] <... bpf resumed>) = 4 [pid 5412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5411] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5409] +++ exited with 0 +++ [pid 5410] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5409, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5412] <... openat resumed>) = 3 [pid 5412] write(3, "1000", 4) = 4 [pid 5412] close(3) = 0 [pid 5412] write(1, "executing program\n", 18 [pid 5411] <... bpf resumed>) = 5 [pid 5410] <... bpf resumed>) = 10 [pid 5408] +++ exited with 0 +++ executing program [pid 5412] <... write resumed>) = 18 [pid 5411] perf_event_open( [pid 5412] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5411] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5410] exit_group(0 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5408, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5410] <... exit_group resumed>) = ? [pid 5412] <... bpf resumed>) = 3 [pid 5411] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5411] <... bpf resumed>) = 7 ./strace-static-x86_64: Process 5414 attached ./strace-static-x86_64: Process 5413 attached [pid 5412] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5411] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5414] set_robust_list(0x555582d82660, 24 [pid 5413] set_robust_list(0x555582d82660, 24 [pid 5411] <... bpf resumed>) = 8 [pid 5412] <... bpf resumed>) = 4 [pid 5411] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5413 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5414 [pid 5411] <... ioctl resumed>) = 0 [pid 5413] <... set_robust_list resumed>) = 0 [pid 5411] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5414] <... set_robust_list resumed>) = 0 [pid 5414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5412] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5411] <... bpf resumed>) = 9 [pid 5414] <... prctl resumed>) = 0 [pid 5413] <... prctl resumed>) = 0 [pid 5411] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5413] setpgid(0, 0) = 0 [pid 5414] setpgid(0, 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5414] <... setpgid resumed>) = 0 [pid 5414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5413] <... openat resumed>) = 3 [pid 5412] <... bpf resumed>) = 5 [pid 5410] +++ exited with 0 +++ [pid 5414] <... openat resumed>) = 3 [pid 5413] write(3, "1000", 4 [pid 5412] perf_event_open( [pid 5411] <... bpf resumed>) = 10 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5410, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5414] write(3, "1000", 4 [pid 5413] <... write resumed>) = 4 [pid 5412] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5411] exit_group(0 [pid 5414] <... write resumed>) = 4 [pid 5413] close(3 [pid 5411] <... exit_group resumed>) = ? [pid 5414] close(3 [pid 5413] <... close resumed>) = 0 [pid 5414] <... close resumed>) = 0 [pid 5412] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program executing program [pid 5413] write(1, "executing program\n", 18 [pid 5414] write(1, "executing program\n", 18 [pid 5412] <... bpf resumed>) = 7 [pid 5414] <... write resumed>) = 18 [pid 5413] <... write resumed>) = 18 [pid 5414] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5413] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5412] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5414] <... bpf resumed>) = 3 [pid 5412] <... bpf resumed>) = 8 [pid 5414] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5413] <... bpf resumed>) = 3 [pid 5412] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5413] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5414] <... bpf resumed>) = 4 [pid 5412] <... ioctl resumed>) = 0 [pid 5414] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5413] <... bpf resumed>) = 4 [pid 5412] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5413] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5412] <... bpf resumed>) = 9 [pid 5412] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5415 attached [pid 5415] set_robust_list(0x555582d82660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5415 [pid 5415] <... set_robust_list resumed>) = 0 [pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5414] <... bpf resumed>) = 5 [pid 5413] <... bpf resumed>) = 5 [pid 5412] <... bpf resumed>) = 10 [pid 5411] +++ exited with 0 +++ [pid 5415] setpgid(0, 0 [pid 5414] perf_event_open( [pid 5413] perf_event_open( [pid 5412] exit_group(0 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5411, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5415] <... setpgid resumed>) = 0 [pid 5414] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5413] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5412] <... exit_group resumed>) = ? [pid 5414] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5413] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5415] <... openat resumed>) = 3 [pid 5414] <... bpf resumed>) = 7 [pid 5415] write(3, "1000", 4 [pid 5414] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5413] <... bpf resumed>) = 7 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5415] <... write resumed>) = 4 [pid 5414] <... bpf resumed>) = 8 [pid 5413] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5412] +++ exited with 0 +++ ./strace-static-x86_64: Process 5416 attached [pid 5415] close(3 [pid 5414] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5412, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5414] <... ioctl resumed>) = 0 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5415] <... close resumed>) = 0 [pid 5416] set_robust_list(0x555582d82660, 24 [pid 5414] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5413] <... bpf resumed>) = 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5416 [pid 5416] <... set_robust_list resumed>) = 0 [pid 5415] write(1, "executing program\n", 18executing program [pid 5414] <... bpf resumed>) = 9 [pid 5413] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5415] <... write resumed>) = 18 [pid 5414] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5413] <... ioctl resumed>) = 0 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5415] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5416] <... prctl resumed>) = 0 [pid 5413] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5416] setpgid(0, 0 [pid 5414] <... bpf resumed>) = 10 [pid 5413] <... bpf resumed>) = 9 [pid 5416] <... setpgid resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5415] <... bpf resumed>) = 3 [pid 5414] exit_group(0 [pid 5413] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5417 attached [pid 5416] <... openat resumed>) = 3 [pid 5415] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5414] <... exit_group resumed>) = ? [pid 5417] set_robust_list(0x555582d82660, 24 [pid 5416] write(3, "1000", 4 [pid 5413] <... bpf resumed>) = 10 [pid 5417] <... set_robust_list resumed>) = 0 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5417 [pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5416] <... write resumed>) = 4 [pid 5415] <... bpf resumed>) = 4 [pid 5416] close(3 [pid 5415] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5413] exit_group(0 [pid 5417] <... prctl resumed>) = 0 [pid 5417] setpgid(0, 0 [pid 5416] <... close resumed>) = 0 [pid 5416] write(1, "executing program\n", 18) = 18 [pid 5413] <... exit_group resumed>) = ? [pid 5417] <... setpgid resumed>) = 0 [pid 5416] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5417] write(3, "1000", 4) = 4 [pid 5416] <... bpf resumed>) = 3 [pid 5417] close(3) = 0 [pid 5416] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5417] write(1, "executing program\n", 18) = 18 [pid 5417] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5416] <... bpf resumed>) = 4 [pid 5416] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5417] <... bpf resumed>) = 3 [pid 5417] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5417] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5416] <... bpf resumed>) = 5 [pid 5415] <... bpf resumed>) = 5 [pid 5414] +++ exited with 0 +++ [pid 5417] perf_event_open( [pid 5416] perf_event_open( [pid 5415] perf_event_open( [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5418 attached , child_tidptr=0x555582d82650) = 5418 [pid 5418] set_robust_list(0x555582d82660, 24) = 0 [pid 5418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5418] setpgid(0, 0 [pid 5417] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5416] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5415] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5413] +++ exited with 0 +++ [pid 5418] <... setpgid resumed>) = 0 [pid 5416] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5415] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5417] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5416] <... bpf resumed>) = 7 [pid 5415] <... bpf resumed>) = 7 [pid 5418] <... openat resumed>) = 3 [pid 5417] <... bpf resumed>) = 7 [pid 5416] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5415] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5418] write(3, "1000", 4 [pid 5417] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5416] <... bpf resumed>) = 8 [pid 5415] <... bpf resumed>) = 8 [pid 5415] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5419 attached [pid 5418] <... write resumed>) = 4 [pid 5417] <... bpf resumed>) = 8 [pid 5416] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5419] set_robust_list(0x555582d82660, 24 [pid 5418] close(3 [pid 5417] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5416] <... ioctl resumed>) = 0 [pid 5415] <... ioctl resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5419 [pid 5419] <... set_robust_list resumed>) = 0 [pid 5418] <... close resumed>) = 0 [pid 5417] <... ioctl resumed>) = 0 [pid 5416] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5415] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5418] write(1, "executing program\n", 18executing program [pid 5417] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5416] <... bpf resumed>) = 9 [pid 5415] <... bpf resumed>) = 9 [pid 5419] <... prctl resumed>) = 0 [pid 5418] <... write resumed>) = 18 [pid 5415] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5419] setpgid(0, 0 [pid 5418] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5417] <... bpf resumed>) = 9 [pid 5416] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5415] <... bpf resumed>) = 10 [pid 5419] <... setpgid resumed>) = 0 [pid 5417] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5416] <... bpf resumed>) = 10 [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5418] <... bpf resumed>) = 3 [pid 5417] <... bpf resumed>) = 10 [pid 5415] exit_group(0 [pid 5418] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5417] exit_group(0 [pid 5415] <... exit_group resumed>) = ? [pid 5419] <... openat resumed>) = 3 [pid 5417] <... exit_group resumed>) = ? [pid 5416] exit_group(0 [pid 5419] write(3, "1000", 4 [pid 5416] <... exit_group resumed>) = ? [pid 5415] +++ exited with 0 +++ [pid 5419] <... write resumed>) = 4 [pid 5418] <... bpf resumed>) = 4 [pid 5419] close(3 [pid 5418] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5419] <... close resumed>) = 0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5415, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 5419] write(1, "executing program\n", 18 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5419] <... write resumed>) = 18 [pid 5419] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5420 attached [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5420 [pid 5419] <... bpf resumed>) = 3 [pid 5420] set_robust_list(0x555582d82660, 24 [pid 5419] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5418] <... bpf resumed>) = 5 [pid 5417] +++ exited with 0 +++ [pid 5420] <... set_robust_list resumed>) = 0 [pid 5418] perf_event_open( [pid 5420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5417, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5420] <... prctl resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5420] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5421 attached [pid 5420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5419] <... bpf resumed>) = 4 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5421 [pid 5421] set_robust_list(0x555582d82660, 24) = 0 [pid 5419] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5420] <... openat resumed>) = 3 [pid 5419] perf_event_open( [pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5420] write(3, "1000", 4 [pid 5421] <... prctl resumed>) = 0 [pid 5421] setpgid(0, 0) = 0 [pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5420] <... write resumed>) = 4 [pid 5416] +++ exited with 0 +++ [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5420] close(3 [pid 5418] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5421] <... openat resumed>) = 3 [pid 5420] <... close resumed>) = 0 executing program [pid 5420] write(1, "executing program\n", 18 [pid 5421] write(3, "1000", 4 [pid 5420] <... write resumed>) = 18 [pid 5419] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5418] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5421] <... write resumed>) = 4 [pid 5420] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5421] close(3 [pid 5419] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5418] <... bpf resumed>) = 7 [pid 5421] <... close resumed>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5421] write(1, "executing program\n", 18 [pid 5420] <... bpf resumed>) = 3 [pid 5419] <... bpf resumed>) = 7 [pid 5418] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5422 attached [pid 5421] <... write resumed>) = 18 [pid 5420] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5419] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5422] set_robust_list(0x555582d82660, 24 [pid 5421] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5418] <... bpf resumed>) = 8 [pid 5422] <... set_robust_list resumed>) = 0 [pid 5418] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5422 [pid 5422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5419] <... bpf resumed>) = 8 [pid 5418] <... ioctl resumed>) = 0 [pid 5422] <... prctl resumed>) = 0 [pid 5420] <... bpf resumed>) = 4 [pid 5418] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5422] setpgid(0, 0 [pid 5421] <... bpf resumed>) = 3 [pid 5418] <... bpf resumed>) = 9 [pid 5422] <... setpgid resumed>) = 0 [pid 5422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5418] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5419] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5421] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5420] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5419] <... ioctl resumed>) = 0 [pid 5418] <... bpf resumed>) = 10 [pid 5422] <... openat resumed>) = 3 [pid 5420] <... bpf resumed>) = 5 [pid 5419] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5422] write(3, "1000", 4 [pid 5421] <... bpf resumed>) = 4 [pid 5420] perf_event_open( [pid 5418] exit_group(0 [pid 5422] <... write resumed>) = 4 [pid 5419] <... bpf resumed>) = 9 [pid 5418] <... exit_group resumed>) = ? [pid 5421] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5422] close(3 [pid 5421] <... bpf resumed>) = 5 [pid 5420] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5419] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5422] <... close resumed>) = 0 [pid 5421] perf_event_open( executing program [pid 5420] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5419] <... bpf resumed>) = 10 [pid 5422] write(1, "executing program\n", 18 [pid 5421] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5422] <... write resumed>) = 18 [pid 5420] <... bpf resumed>) = 7 [pid 5419] exit_group(0 [pid 5422] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5421] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5420] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5419] <... exit_group resumed>) = ? [pid 5422] <... bpf resumed>) = 3 [pid 5421] <... bpf resumed>) = 7 [pid 5418] +++ exited with 0 +++ [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5418, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5421] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5420] <... bpf resumed>) = 8 [pid 5238] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5422] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5419] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5422] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5421] <... bpf resumed>) = 8 [pid 5420] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5423 attached [pid 5422] <... bpf resumed>) = 5 [pid 5421] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5420] <... ioctl resumed>) = 0 [pid 5420] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5422] perf_event_open( [pid 5421] <... ioctl resumed>) = 0 [pid 5423] set_robust_list(0x555582d82660, 24 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5423 [pid 5423] <... set_robust_list resumed>) = 0 [pid 5422] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5421] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5420] <... bpf resumed>) = 9 [pid 5423] <... prctl resumed>) = 0 [pid 5422] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5423] setpgid(0, 0 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5422] <... bpf resumed>) = 7 [pid 5423] <... setpgid resumed>) = 0 [pid 5422] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5421] <... bpf resumed>) = 9 [pid 5420] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5423] <... openat resumed>) = 3 [pid 5421] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5424 attached [pid 5423] write(3, "1000", 4 [pid 5422] <... bpf resumed>) = 8 [pid 5420] <... bpf resumed>) = 10 [pid 5424] set_robust_list(0x555582d82660, 24 [pid 5423] <... write resumed>) = 4 [pid 5422] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5421] <... bpf resumed>) = 10 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5424 [pid 5420] exit_group(0 [pid 5424] <... set_robust_list resumed>) = 0 [pid 5423] close(3 [pid 5422] <... ioctl resumed>) = 0 [pid 5421] exit_group(0 [pid 5420] <... exit_group resumed>) = ? [pid 5424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5423] <... close resumed>) = 0 [pid 5422] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5421] <... exit_group resumed>) = ? executing program [pid 5424] <... prctl resumed>) = 0 [pid 5423] write(1, "executing program\n", 18 [pid 5422] <... bpf resumed>) = 9 [pid 5424] setpgid(0, 0 [pid 5423] <... write resumed>) = 18 [pid 5424] <... setpgid resumed>) = 0 [pid 5423] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5422] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5420] +++ exited with 0 +++ [pid 5424] <... openat resumed>) = 3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5420, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5424] write(3, "1000", 4) = 4 [pid 5424] close(3) = 0 [pid 5423] <... bpf resumed>) = 3 [pid 5424] write(1, "executing program\n", 18 executing program [pid 5423] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5424] <... write resumed>) = 18 [pid 5424] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5423] <... bpf resumed>) = 4 [pid 5423] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5424] <... bpf resumed>) = 3 [pid 5423] <... bpf resumed>) = 5 [pid 5422] <... bpf resumed>) = 10 [pid 5421] +++ exited with 0 +++ [pid 5424] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5423] perf_event_open( [pid 5422] exit_group(0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5421, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5423] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5424] <... bpf resumed>) = 4 [pid 5423] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5422] <... exit_group resumed>) = ? [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5425 attached [pid 5424] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5423] <... bpf resumed>) = 7 [pid 5424] <... bpf resumed>) = 5 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5425] set_robust_list(0x555582d82660, 24 [pid 5424] perf_event_open( [pid 5423] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5422] +++ exited with 0 +++ [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5425 ./strace-static-x86_64: Process 5426 attached [pid 5425] <... set_robust_list resumed>) = 0 [pid 5423] <... bpf resumed>) = 8 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5426] set_robust_list(0x555582d82660, 24 [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5423] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5426 [pid 5426] <... set_robust_list resumed>) = 0 [pid 5425] <... prctl resumed>) = 0 [pid 5423] <... ioctl resumed>) = 0 [pid 5426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5424] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5426] <... prctl resumed>) = 0 [pid 5425] setpgid(0, 0 [pid 5423] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5424] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5426] setpgid(0, 0 [pid 5425] <... setpgid resumed>) = 0 [pid 5423] <... bpf resumed>) = 9 [pid 5426] <... setpgid resumed>) = 0 [pid 5424] <... bpf resumed>) = 7 [pid 5426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5424] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5423] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5426] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5427 attached [pid 5426] write(3, "1000", 4 [pid 5425] <... openat resumed>) = 3 [pid 5424] <... bpf resumed>) = 8 [pid 5423] <... bpf resumed>) = 10 [pid 5427] set_robust_list(0x555582d82660, 24 [pid 5426] <... write resumed>) = 4 [pid 5425] write(3, "1000", 4 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5427 [pid 5427] <... set_robust_list resumed>) = 0 [pid 5426] close(3 [pid 5425] <... write resumed>) = 4 [pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5426] <... close resumed>) = 0 [pid 5425] close(3 [pid 5423] exit_group(0 [pid 5424] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5423] <... exit_group resumed>) = ? [pid 5427] <... prctl resumed>) = 0 executing program [pid 5426] write(1, "executing program\n", 18 [pid 5425] <... close resumed>) = 0 [pid 5424] <... ioctl resumed>) = 0 [pid 5427] setpgid(0, 0 [pid 5426] <... write resumed>) = 18 [pid 5426] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5425] write(1, "executing program\n", 18executing program [pid 5424] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5427] <... setpgid resumed>) = 0 [pid 5426] <... bpf resumed>) = 3 [pid 5425] <... write resumed>) = 18 [pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5424] <... bpf resumed>) = 9 [pid 5425] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5427] <... openat resumed>) = 3 [pid 5425] <... bpf resumed>) = 3 [pid 5424] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5427] write(3, "1000", 4) = 4 [pid 5427] close(3 [pid 5423] +++ exited with 0 +++ [pid 5427] <... close resumed>) = 0 [pid 5426] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5424] <... bpf resumed>) = 10 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5427] write(1, "executing program\n", 18 [pid 5426] <... bpf resumed>) = 4 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5427] <... write resumed>) = 18 [pid 5425] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5424] exit_group(0 [pid 5427] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5426] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5425] <... bpf resumed>) = 4 [pid 5424] <... exit_group resumed>) = ? [pid 5427] <... bpf resumed>) = 3 [pid 5426] <... bpf resumed>) = 5 [pid 5425] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5426] perf_event_open( [pid 5425] <... bpf resumed>) = 5 ./strace-static-x86_64: Process 5428 attached [pid 5426] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5425] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5426] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5427] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5426] <... bpf resumed>) = 7 [pid 5425] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5428] set_robust_list(0x555582d82660, 24 [pid 5427] <... bpf resumed>) = 4 [pid 5426] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5425] <... bpf resumed>) = 7 [pid 5428] <... set_robust_list resumed>) = 0 [pid 5427] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5426] <... bpf resumed>) = 8 [pid 5425] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5427] <... bpf resumed>) = 5 [pid 5426] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5425] <... bpf resumed>) = 8 [pid 5424] +++ exited with 0 +++ [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5428 [pid 5428] <... prctl resumed>) = 0 [pid 5426] <... ioctl resumed>) = 0 [pid 5428] setpgid(0, 0 [pid 5427] perf_event_open( [pid 5426] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5428] <... setpgid resumed>) = 0 [pid 5427] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5426] <... bpf resumed>) = 9 [pid 5425] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5425] <... ioctl resumed>) = 0 [pid 5427] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5425] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5427] <... bpf resumed>) = 7 [pid 5426] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5427] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5425] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5429 attached [pid 5427] <... bpf resumed>) = 8 [pid 5429] set_robust_list(0x555582d82660, 24 [pid 5428] <... openat resumed>) = 3 [pid 5425] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5429 [pid 5429] <... set_robust_list resumed>) = 0 [pid 5428] write(3, "1000", 4 [pid 5427] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5426] <... bpf resumed>) = 10 [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5428] <... write resumed>) = 4 [pid 5427] <... ioctl resumed>) = 0 [pid 5426] exit_group(0 [pid 5425] <... bpf resumed>) = 10 [pid 5429] <... prctl resumed>) = 0 [pid 5428] close(3 [pid 5427] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5426] <... exit_group resumed>) = ? [pid 5425] exit_group(0 [pid 5429] setpgid(0, 0 [pid 5428] <... close resumed>) = 0 [pid 5428] write(1, "executing program\n", 18 executing program [pid 5425] <... exit_group resumed>) = ? [pid 5427] <... bpf resumed>) = 9 [pid 5428] <... write resumed>) = 18 [pid 5429] <... setpgid resumed>) = 0 executing program [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5428] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5427] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5429] <... openat resumed>) = 3 [pid 5429] write(3, "1000", 4) = 4 [pid 5429] close(3) = 0 [pid 5429] write(1, "executing program\n", 18) = 18 [pid 5429] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5428] <... bpf resumed>) = 3 [pid 5427] <... bpf resumed>) = 10 [pid 5429] <... bpf resumed>) = 3 [pid 5428] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5427] exit_group(0 [pid 5429] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5427] <... exit_group resumed>) = ? [pid 5429] <... bpf resumed>) = 4 [pid 5428] <... bpf resumed>) = 4 [pid 5429] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5428] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5426] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5426, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5429] <... bpf resumed>) = 5 [pid 5429] perf_event_open( [pid 5428] <... bpf resumed>) = 5 [pid 5428] perf_event_open( [pid 5425] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5425, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5430 attached , child_tidptr=0x555582d82650) = 5430 [pid 5430] set_robust_list(0x555582d82660, 24) = 0 [pid 5430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5430] setpgid(0, 0) = 0 [pid 5430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5430] write(3, "1000", 4) = 4 [pid 5430] close(3) = 0 executing program [pid 5430] write(1, "executing program\n", 18) = 18 [pid 5430] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5431 attached [pid 5430] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5431 [pid 5431] set_robust_list(0x555582d82660, 24 [pid 5430] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5431] <... set_robust_list resumed>) = 0 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5430] <... bpf resumed>) = 4 [pid 5429] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5428] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5427] +++ exited with 0 +++ [pid 5431] <... prctl resumed>) = 0 [pid 5429] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5427, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5431] setpgid(0, 0 [pid 5430] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5429] <... bpf resumed>) = 7 [pid 5428] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5431] <... setpgid resumed>) = 0 [pid 5430] <... bpf resumed>) = 5 [pid 5428] <... bpf resumed>) = 7 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5430] perf_event_open( [pid 5429] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5428] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5432 attached [pid 5431] <... openat resumed>) = 3 [pid 5430] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5429] <... bpf resumed>) = 8 [pid 5431] write(3, "1000", 4 [pid 5430] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5432] set_robust_list(0x555582d82660, 24 [pid 5431] <... write resumed>) = 4 [pid 5430] <... bpf resumed>) = 7 [pid 5429] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5428] <... bpf resumed>) = 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5432 [pid 5432] <... set_robust_list resumed>) = 0 [pid 5431] close(3) = 0 [pid 5430] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5429] <... ioctl resumed>) = 0 [pid 5432] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5431] write(1, "executing program\n", 18 [pid 5429] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128executing program [pid 5428] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5432] <... prctl resumed>) = 0 [pid 5431] <... write resumed>) = 18 [pid 5430] <... bpf resumed>) = 8 [pid 5429] <... bpf resumed>) = 9 [pid 5432] setpgid(0, 0 [pid 5431] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5428] <... ioctl resumed>) = 0 [pid 5430] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5432] <... setpgid resumed>) = 0 [pid 5429] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5428] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5430] <... ioctl resumed>) = 0 [pid 5432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5431] <... bpf resumed>) = 3 [pid 5429] <... bpf resumed>) = 10 [pid 5430] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5428] <... bpf resumed>) = 9 [pid 5428] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5432] <... openat resumed>) = 3 [pid 5431] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5430] <... bpf resumed>) = 9 [pid 5429] exit_group(0 [pid 5428] <... bpf resumed>) = 10 [pid 5432] write(3, "1000", 4 [pid 5429] <... exit_group resumed>) = ? [pid 5428] exit_group(0 [pid 5432] <... write resumed>) = 4 [pid 5431] <... bpf resumed>) = 4 [pid 5430] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5431] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5430] <... bpf resumed>) = 10 [pid 5428] <... exit_group resumed>) = ? [pid 5432] close(3) = 0 [pid 5432] write(1, "executing program\n", 18executing program [pid 5430] exit_group(0 [pid 5432] <... write resumed>) = 18 [pid 5430] <... exit_group resumed>) = ? [pid 5432] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5432] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5432] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5431] <... bpf resumed>) = 5 [pid 5432] <... bpf resumed>) = 5 [pid 5431] perf_event_open( [pid 5428] +++ exited with 0 +++ [pid 5432] perf_event_open( [pid 5429] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5428, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555582d82650) = 5433 ./strace-static-x86_64: Process 5433 attached [pid 5433] set_robust_list(0x555582d82660, 24) = 0 [pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5433] setpgid(0, 0) = 0 [pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5433] <... openat resumed>) = 3 [pid 5433] write(3, "1000", 4./strace-static-x86_64: Process 5434 attached ) = 4 [pid 5432] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5431] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5430] +++ exited with 0 +++ [pid 5434] set_robust_list(0x555582d82660, 24 [pid 5433] close(3 [pid 5432] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5431] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5434 [pid 5434] <... set_robust_list resumed>) = 0 [pid 5433] <... close resumed>) = 0 [pid 5432] <... bpf resumed>) = 7 [pid 5431] <... bpf resumed>) = 7 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5430, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 5434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5433] write(1, "executing program\n", 18 [pid 5431] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5434] <... prctl resumed>) = 0 [pid 5433] <... write resumed>) = 18 [pid 5432] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5434] setpgid(0, 0 [pid 5433] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5431] <... bpf resumed>) = 8 [pid 5434] <... setpgid resumed>) = 0 [pid 5432] <... bpf resumed>) = 8 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5431] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5432] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5432] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128./strace-static-x86_64: Process 5435 attached [pid 5434] <... openat resumed>) = 3 [pid 5433] <... bpf resumed>) = 3 [pid 5431] <... ioctl resumed>) = 0 [pid 5435] set_robust_list(0x555582d82660, 24 [pid 5433] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5435] <... set_robust_list resumed>) = 0 [pid 5434] write(3, "1000", 4 [pid 5433] <... bpf resumed>) = 4 [pid 5432] <... bpf resumed>) = 9 [pid 5431] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5435 [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5434] <... write resumed>) = 4 [pid 5433] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5432] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5435] <... prctl resumed>) = 0 [pid 5434] close(3 [pid 5435] setpgid(0, 0 [pid 5433] <... bpf resumed>) = 5 [pid 5435] <... setpgid resumed>) = 0 [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5434] <... close resumed>) = 0 [pid 5433] perf_event_open( [pid 5432] <... bpf resumed>) = 10 [pid 5431] <... bpf resumed>) = 9 executing program [pid 5435] <... openat resumed>) = 3 [pid 5434] write(1, "executing program\n", 18 [pid 5433] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5431] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5434] <... write resumed>) = 18 [pid 5435] write(3, "1000", 4 [pid 5434] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5433] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5432] exit_group(0 [pid 5431] <... bpf resumed>) = 10 [pid 5435] <... write resumed>) = 4 [pid 5434] <... bpf resumed>) = 3 [pid 5433] <... bpf resumed>) = 7 [pid 5432] <... exit_group resumed>) = ? [pid 5431] exit_group(0 [pid 5435] close(3 [pid 5434] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5433] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5431] <... exit_group resumed>) = ? [pid 5435] <... close resumed>) = 0 [pid 5434] <... bpf resumed>) = 4 executing program [pid 5435] write(1, "executing program\n", 18) = 18 [pid 5435] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5434] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5433] <... bpf resumed>) = 8 [pid 5433] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5435] <... bpf resumed>) = 3 [pid 5435] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5433] <... ioctl resumed>) = 0 [pid 5433] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 9 [pid 5435] <... bpf resumed>) = 4 [pid 5433] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16) = 10 [pid 5432] +++ exited with 0 +++ [pid 5435] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5433] exit_group(0 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5432, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5433] <... exit_group resumed>) = ? [pid 5235] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5436 attached , child_tidptr=0x555582d82650) = 5436 [pid 5434] <... bpf resumed>) = 5 [pid 5436] set_robust_list(0x555582d82660, 24 [pid 5435] <... bpf resumed>) = 5 [pid 5434] perf_event_open( [pid 5431] +++ exited with 0 +++ [pid 5436] <... set_robust_list resumed>) = 0 [pid 5435] perf_event_open( [pid 5436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5435] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5434] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5433] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5436] setpgid(0, 0 [pid 5435] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5436] <... setpgid resumed>) = 0 [pid 5435] <... bpf resumed>) = 7 [pid 5434] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5435] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5434] <... bpf resumed>) = 7 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5436] <... openat resumed>) = 3 [pid 5434] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5437 attached [pid 5436] write(3, "1000", 4 [pid 5435] <... bpf resumed>) = 8 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5437] set_robust_list(0x555582d82660, 24 [pid 5436] <... write resumed>) = 4 [pid 5437] <... set_robust_list resumed>) = 0 [pid 5436] close(3 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5436] <... close resumed>) = 0 [pid 5437] <... prctl resumed>) = 0 [pid 5436] write(1, "executing program\n", 18executing program [pid 5434] <... bpf resumed>) = 8 [pid 5437] setpgid(0, 0 [pid 5436] <... write resumed>) = 18 [pid 5435] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5437] <... setpgid resumed>) = 0 [pid 5436] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5435] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5438 attached [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5435] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5434] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5437 [pid 5434] <... ioctl resumed>) = 0 [pid 5434] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5438] set_robust_list(0x555582d82660, 24 [pid 5436] <... bpf resumed>) = 3 [pid 5435] <... bpf resumed>) = 9 [pid 5434] <... bpf resumed>) = 9 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5438 [pid 5438] <... set_robust_list resumed>) = 0 [pid 5437] <... openat resumed>) = 3 [pid 5436] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5435] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5437] write(3, "1000", 4 [pid 5434] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5436] <... bpf resumed>) = 4 [pid 5434] <... bpf resumed>) = 10 [pid 5438] <... prctl resumed>) = 0 [pid 5437] <... write resumed>) = 4 [pid 5435] <... bpf resumed>) = 10 [pid 5438] setpgid(0, 0 [pid 5437] close(3 [pid 5434] exit_group(0) = ? [pid 5438] <... setpgid resumed>) = 0 [pid 5437] <... close resumed>) = 0 [pid 5436] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5435] exit_group(0 [pid 5438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5437] write(1, "executing program\n", 18executing program [pid 5436] <... bpf resumed>) = 5 [pid 5435] <... exit_group resumed>) = ? [pid 5438] <... openat resumed>) = 3 [pid 5437] <... write resumed>) = 18 [pid 5436] perf_event_open( [pid 5437] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5436] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5438] write(3, "1000", 4) = 4 [pid 5436] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5438] close(3) = 0 [pid 5438] write(1, "executing program\n", 18executing program [pid 5437] <... bpf resumed>) = 3 [pid 5438] <... write resumed>) = 18 [pid 5436] <... bpf resumed>) = 7 [pid 5434] +++ exited with 0 +++ [pid 5438] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5437] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5436] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5438] <... bpf resumed>) = 3 [pid 5437] <... bpf resumed>) = 4 [pid 5436] <... bpf resumed>) = 8 [pid 5438] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5437] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5436] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5438] <... bpf resumed>) = 4 [pid 5438] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5436] <... ioctl resumed>) = 0 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5436] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128./strace-static-x86_64: Process 5439 attached [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5439 [pid 5436] <... bpf resumed>) = 9 [pid 5439] set_robust_list(0x555582d82660, 24 [pid 5436] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5439] <... set_robust_list resumed>) = 0 [pid 5435] +++ exited with 0 +++ [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5437] <... bpf resumed>) = 5 [pid 5438] <... bpf resumed>) = 5 [pid 5436] <... bpf resumed>) = 10 [pid 5437] perf_event_open( [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5435, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5439] setpgid(0, 0 [pid 5438] perf_event_open( [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5439] <... setpgid resumed>) = 0 [pid 5438] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5437] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5436] exit_group(0 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5438] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5437] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5436] <... exit_group resumed>) = ? [pid 5439] <... openat resumed>) = 3 [pid 5438] <... bpf resumed>) = 7 [pid 5439] write(3, "1000", 4 [pid 5437] <... bpf resumed>) = 7 [pid 5439] <... write resumed>) = 4 [pid 5439] close(3 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5439] <... close resumed>) = 0 [pid 5439] write(1, "executing program\n", 18 [pid 5438] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5437] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5440 attached [pid 5436] +++ exited with 0 +++ executing program [pid 5440] set_robust_list(0x555582d82660, 24 [pid 5439] <... write resumed>) = 18 [pid 5438] <... bpf resumed>) = 8 [pid 5437] <... bpf resumed>) = 8 [pid 5440] <... set_robust_list resumed>) = 0 [pid 5439] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5438] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5437] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5436, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5440 [pid 5440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5438] <... ioctl resumed>) = 0 [pid 5437] <... ioctl resumed>) = 0 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5440] <... prctl resumed>) = 0 [pid 5439] <... bpf resumed>) = 3 [pid 5438] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5437] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5440] setpgid(0, 0 [pid 5439] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5438] <... bpf resumed>) = 9 [pid 5437] <... bpf resumed>) = 9 [pid 5440] <... setpgid resumed>) = 0 [pid 5439] <... bpf resumed>) = 4 [pid 5437] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5438] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5439] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 5441 attached [pid 5439] <... bpf resumed>) = 5 [pid 5438] <... bpf resumed>) = 10 [pid 5437] <... bpf resumed>) = 10 [pid 5440] write(3, "1000", 4 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5441 [pid 5441] set_robust_list(0x555582d82660, 24 [pid 5440] <... write resumed>) = 4 [pid 5439] perf_event_open( [pid 5438] exit_group(0 [pid 5437] exit_group(0 executing program [pid 5441] <... set_robust_list resumed>) = 0 [pid 5440] close(3 [pid 5439] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5440] <... close resumed>) = 0 [pid 5437] <... exit_group resumed>) = ? [pid 5440] write(1, "executing program\n", 18) = 18 [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5439] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5438] <... exit_group resumed>) = ? [pid 5441] <... prctl resumed>) = 0 [pid 5440] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5439] <... bpf resumed>) = 7 [pid 5441] setpgid(0, 0 [pid 5439] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5441] <... setpgid resumed>) = 0 [pid 5439] <... bpf resumed>) = 8 [pid 5440] <... bpf resumed>) = 3 [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5440] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5439] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5438] +++ exited with 0 +++ [pid 5441] write(3, "1000", 4 [pid 5439] <... ioctl resumed>) = 0 [pid 5441] <... write resumed>) = 4 [pid 5440] <... bpf resumed>) = 4 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5438, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5439] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5441] close(3 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5441] <... close resumed>) = 0 [pid 5440] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5441] write(1, "executing program\n", 18 [pid 5439] <... bpf resumed>) = 9 [pid 5441] <... write resumed>) = 18 [pid 5441] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5439] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5441] <... bpf resumed>) = 3 [pid 5441] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5441] <... bpf resumed>) = 4 [pid 5441] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5442 attached [pid 5441] <... bpf resumed>) = 5 [pid 5440] <... bpf resumed>) = 5 [pid 5439] <... bpf resumed>) = 10 [pid 5437] +++ exited with 0 +++ [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5442 [pid 5442] set_robust_list(0x555582d82660, 24 [pid 5440] perf_event_open( [pid 5439] exit_group(0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5442] <... set_robust_list resumed>) = 0 [pid 5441] perf_event_open( [pid 5440] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5439] <... exit_group resumed>) = ? [pid 5442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5441] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5440] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5442] <... prctl resumed>) = 0 [pid 5441] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5440] <... bpf resumed>) = 7 [pid 5442] setpgid(0, 0 [pid 5439] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5442] <... setpgid resumed>) = 0 [pid 5442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5441] <... bpf resumed>) = 7 [pid 5440] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5443 attached [pid 5442] <... openat resumed>) = 3 [pid 5441] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5443] set_robust_list(0x555582d82660, 24 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5439, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5443] <... set_robust_list resumed>) = 0 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5443 [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5441] <... bpf resumed>) = 8 [pid 5443] <... prctl resumed>) = 0 [pid 5443] setpgid(0, 0) = 0 [pid 5442] write(3, "1000", 4 [pid 5441] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5440] <... bpf resumed>) = 8 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5442] <... write resumed>) = 4 [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5442] close(3 [pid 5441] <... ioctl resumed>) = 0 [pid 5442] <... close resumed>) = 0 [pid 5442] write(1, "executing program\n", 18 executing program [pid 5441] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5440] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5442] <... write resumed>) = 18 [pid 5443] <... openat resumed>) = 3 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5444 attached [pid 5443] write(3, "1000", 4 [pid 5442] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5441] <... bpf resumed>) = 9 [pid 5440] <... ioctl resumed>) = 0 [pid 5444] set_robust_list(0x555582d82660, 24 [pid 5443] <... write resumed>) = 4 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5444 [pid 5444] <... set_robust_list resumed>) = 0 executing program [pid 5443] close(3 [pid 5444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5443] <... close resumed>) = 0 [pid 5444] <... prctl resumed>) = 0 [pid 5443] write(1, "executing program\n", 18 [pid 5444] setpgid(0, 0 [pid 5443] <... write resumed>) = 18 [pid 5444] <... setpgid resumed>) = 0 [pid 5443] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5441] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5440] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5443] <... bpf resumed>) = 3 [pid 5442] <... bpf resumed>) = 3 [pid 5440] <... bpf resumed>) = 9 [pid 5441] <... bpf resumed>) = 10 [pid 5444] <... openat resumed>) = 3 [pid 5440] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5443] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5442] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5441] exit_group(0 [pid 5444] write(3, "1000", 4) = 4 [pid 5444] close(3) = 0 [pid 5444] write(1, "executing program\n", 18executing program ) = 18 [pid 5443] <... bpf resumed>) = 4 [pid 5442] <... bpf resumed>) = 4 [pid 5441] <... exit_group resumed>) = ? [pid 5440] <... bpf resumed>) = 10 [pid 5444] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5443] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5442] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5443] <... bpf resumed>) = 5 [pid 5442] <... bpf resumed>) = 5 [pid 5440] exit_group(0) = ? [pid 5444] <... bpf resumed>) = 3 [pid 5443] perf_event_open( [pid 5442] perf_event_open( [pid 5444] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5443] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5442] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5444] <... bpf resumed>) = 4 [pid 5443] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5442] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5444] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5443] <... bpf resumed>) = 7 [pid 5442] <... bpf resumed>) = 7 [pid 5441] +++ exited with 0 +++ [pid 5444] <... bpf resumed>) = 5 [pid 5443] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5442] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5440] +++ exited with 0 +++ [pid 5444] perf_event_open( [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5441, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5440, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5444] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5444] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5443] <... bpf resumed>) = 8 [pid 5442] <... bpf resumed>) = 8 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5444] <... bpf resumed>) = 7 [pid 5442] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5444] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5443] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5444] <... bpf resumed>) = 8 [pid 5443] <... ioctl resumed>) = 0 [pid 5442] <... ioctl resumed>) = 0 [pid 5232] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 5445 attached [pid 5445] set_robust_list(0x555582d82660, 24 [pid 5444] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5443] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5442] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5445 [pid 5445] <... set_robust_list resumed>) = 0 [pid 5444] <... ioctl resumed>) = 0 [pid 5443] <... bpf resumed>) = 9 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5444] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5443] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5442] <... bpf resumed>) = 9 ./strace-static-x86_64: Process 5446 attached [pid 5445] <... prctl resumed>) = 0 [pid 5446] set_robust_list(0x555582d82660, 24 [pid 5444] <... bpf resumed>) = 9 [pid 5446] <... set_robust_list resumed>) = 0 [pid 5445] setpgid(0, 0 [pid 5444] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5443] <... bpf resumed>) = 10 [pid 5442] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5446 [pid 5446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5445] <... setpgid resumed>) = 0 [pid 5444] <... bpf resumed>) = 10 [pid 5443] exit_group(0 [pid 5442] <... bpf resumed>) = 10 [pid 5446] <... prctl resumed>) = 0 [pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5444] exit_group(0 [pid 5443] <... exit_group resumed>) = ? [pid 5442] exit_group(0 [pid 5446] setpgid(0, 0 [pid 5444] <... exit_group resumed>) = ? [pid 5442] <... exit_group resumed>) = ? [pid 5446] <... setpgid resumed>) = 0 [pid 5445] <... openat resumed>) = 3 [pid 5446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5445] write(3, "1000", 4 [pid 5446] write(3, "1000", 4 [pid 5443] +++ exited with 0 +++ [pid 5446] <... write resumed>) = 4 [pid 5445] <... write resumed>) = 4 [pid 5446] close(3 [pid 5445] close(3 [pid 5446] <... close resumed>) = 0 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5443, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- executing program executing program [pid 5445] <... close resumed>) = 0 [pid 5446] write(1, "executing program\n", 18 [pid 5445] write(1, "executing program\n", 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5446] <... write resumed>) = 18 [pid 5445] <... write resumed>) = 18 [pid 5446] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5445] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72./strace-static-x86_64: Process 5447 attached [pid 5447] set_robust_list(0x555582d82660, 24 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5447 [pid 5445] <... bpf resumed>) = 3 [pid 5447] <... set_robust_list resumed>) = 0 [pid 5446] <... bpf resumed>) = 3 [pid 5444] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5444, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5446] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5445] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5447] <... prctl resumed>) = 0 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5447] setpgid(0, 0) = 0 [pid 5445] <... bpf resumed>) = 4 [pid 5446] <... bpf resumed>) = 4 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5446] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5446] perf_event_open( [pid 5445] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5448 attached ) = 5 [pid 5448] set_robust_list(0x555582d82660, 24 [pid 5447] <... openat resumed>) = 3 [pid 5446] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5445] perf_event_open( [pid 5442] +++ exited with 0 +++ [pid 5448] <... set_robust_list resumed>) = 0 [pid 5447] write(3, "1000", 4 [pid 5446] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5448 [pid 5448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5447] <... write resumed>) = 4 [pid 5446] <... bpf resumed>) = 7 [pid 5445] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5442, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5448] <... prctl resumed>) = 0 [pid 5447] close(3 executing program [pid 5446] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5445] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5447] <... close resumed>) = 0 [pid 5447] write(1, "executing program\n", 18) = 18 [pid 5447] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5448] setpgid(0, 0 [pid 5446] <... bpf resumed>) = 8 [pid 5445] <... bpf resumed>) = 7 [pid 5448] <... setpgid resumed>) = 0 [pid 5447] <... bpf resumed>) = 3 [pid 5448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5447] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5446] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5445] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5448] <... openat resumed>) = 3 [pid 5447] <... bpf resumed>) = 4 [pid 5448] write(3, "1000", 4 [pid 5446] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 5449 attached [pid 5448] <... write resumed>) = 4 [pid 5447] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5446] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5449] set_robust_list(0x555582d82660, 24 [pid 5448] close(3 [pid 5447] <... bpf resumed>) = 5 [pid 5445] <... bpf resumed>) = 8 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5449 [pid 5449] <... set_robust_list resumed>) = 0 [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5448] <... close resumed>) = 0 [pid 5447] perf_event_open( [pid 5449] <... prctl resumed>) = 0 [pid 5446] <... bpf resumed>) = 9 [pid 5448] write(1, "executing program\n", 18executing program [pid 5449] setpgid(0, 0 [pid 5447] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5445] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5449] <... setpgid resumed>) = 0 [pid 5448] <... write resumed>) = 18 [pid 5445] <... ioctl resumed>) = 0 [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5445] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5448] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5447] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5446] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5445] <... bpf resumed>) = 9 [pid 5449] <... openat resumed>) = 3 [pid 5447] <... bpf resumed>) = 7 [pid 5445] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5446] <... bpf resumed>) = 10 [pid 5445] <... bpf resumed>) = 10 [pid 5449] write(3, "1000", 4 [pid 5447] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5449] <... write resumed>) = 4 [pid 5449] close(3 [pid 5447] <... bpf resumed>) = 8 [pid 5446] exit_group(0 [pid 5445] exit_group(0 [pid 5449] <... close resumed>) = 0 [pid 5448] <... bpf resumed>) = 3 [pid 5447] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5446] <... exit_group resumed>) = ? [pid 5445] <... exit_group resumed>) = ? [pid 5449] write(1, "executing program\n", 18 [pid 5448] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5447] <... ioctl resumed>) = 0 [pid 5449] <... write resumed>) = 18 [pid 5447] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5449] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5447] <... bpf resumed>) = 9 [pid 5448] <... bpf resumed>) = 4 [pid 5447] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5448] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5449] <... bpf resumed>) = 3 [pid 5449] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5449] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5447] <... bpf resumed>) = 10 [pid 5446] +++ exited with 0 +++ [pid 5447] exit_group(0 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5446, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5447] <... exit_group resumed>) = ? [pid 5232] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5445] +++ exited with 0 +++ ./strace-static-x86_64: Process 5450 attached [pid 5448] <... bpf resumed>) = 5 [pid 5450] set_robust_list(0x555582d82660, 24 [pid 5449] <... bpf resumed>) = 5 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5450 [pid 5449] perf_event_open( [pid 5448] perf_event_open( [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5450] <... set_robust_list resumed>) = 0 [pid 5450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5449] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5448] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5450] <... prctl resumed>) = 0 [pid 5450] setpgid(0, 0) = 0 [pid 5449] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5448] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5447] +++ exited with 0 +++ [pid 5235] <... restart_syscall resumed>) = 0 [pid 5450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5449] <... bpf resumed>) = 7 [pid 5450] <... openat resumed>) = 3 [pid 5449] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5448] <... bpf resumed>) = 7 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5450] write(3, "1000", 4) = 4 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5450] close(3 [pid 5449] <... bpf resumed>) = 8 [pid 5448] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5450] <... close resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5451 attached ./strace-static-x86_64: Process 5452 attached [pid 5450] write(1, "executing program\n", 18 [pid 5449] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5452] set_robust_list(0x555582d82660, 24 [pid 5451] set_robust_list(0x555582d82660, 24 [pid 5450] <... write resumed>) = 18 [pid 5448] <... bpf resumed>) = 8 [pid 5452] <... set_robust_list resumed>) = 0 [pid 5449] <... ioctl resumed>) = 0 [pid 5452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5451] <... set_robust_list resumed>) = 0 [pid 5450] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5452] <... prctl resumed>) = 0 [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5449] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5448] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5451 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5452 [pid 5452] setpgid(0, 0 [pid 5451] <... prctl resumed>) = 0 [pid 5450] <... bpf resumed>) = 3 [pid 5449] <... bpf resumed>) = 9 [pid 5448] <... ioctl resumed>) = 0 [pid 5452] <... setpgid resumed>) = 0 [pid 5448] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5449] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5451] setpgid(0, 0 [pid 5450] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5452] <... openat resumed>) = 3 [pid 5451] <... setpgid resumed>) = 0 [pid 5449] <... bpf resumed>) = 10 [pid 5448] <... bpf resumed>) = 9 [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5452] write(3, "1000", 4 [pid 5450] <... bpf resumed>) = 4 [pid 5449] exit_group(0 [pid 5448] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5452] <... write resumed>) = 4 [pid 5451] <... openat resumed>) = 3 [pid 5450] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5449] <... exit_group resumed>) = ? [pid 5448] <... bpf resumed>) = 10 executing program [pid 5452] close(3) = 0 [pid 5452] write(1, "executing program\n", 18) = 18 [pid 5450] <... bpf resumed>) = 5 [pid 5451] write(3, "1000", 4 [pid 5452] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5452] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5451] <... write resumed>) = 4 [pid 5450] perf_event_open( [pid 5448] exit_group(0 [pid 5451] close(3 [pid 5450] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5448] <... exit_group resumed>) = ? [pid 5452] <... bpf resumed>) = 4 [pid 5451] <... close resumed>) = 0 [pid 5452] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16executing program [pid 5451] write(1, "executing program\n", 18) = 18 [pid 5450] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5452] <... bpf resumed>) = 5 [pid 5451] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5452] perf_event_open( [pid 5450] <... bpf resumed>) = 7 [pid 5452] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5448] +++ exited with 0 +++ [pid 5452] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 7 [pid 5451] <... bpf resumed>) = 3 [pid 5450] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5449] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5452] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5451] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5450] <... bpf resumed>) = 8 [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5450] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5450] <... ioctl resumed>) = 0 [pid 5452] <... bpf resumed>) = 8 [pid 5450] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5452] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5451] <... bpf resumed>) = 4 [pid 5450] <... bpf resumed>) = 9 [pid 5452] <... ioctl resumed>) = 0 [pid 5450] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16./strace-static-x86_64: Process 5453 attached [pid 5452] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5451] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5453] set_robust_list(0x555582d82660, 24 [pid 5452] <... bpf resumed>) = 9 [pid 5452] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5453 [pid 5453] <... set_robust_list resumed>) = 0 [pid 5451] <... bpf resumed>) = 5 [pid 5450] <... bpf resumed>) = 10 [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5452] <... bpf resumed>) = 10 [pid 5451] perf_event_open( [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5451] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5452] exit_group(0) = ? ./strace-static-x86_64: Process 5454 attached [pid 5453] <... prctl resumed>) = 0 [pid 5451] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5450] exit_group(0 [pid 5454] set_robust_list(0x555582d82660, 24 [pid 5453] setpgid(0, 0 [pid 5451] <... bpf resumed>) = 7 [pid 5450] <... exit_group resumed>) = ? [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5454 [pid 5454] <... set_robust_list resumed>) = 0 [pid 5453] <... setpgid resumed>) = 0 [pid 5452] +++ exited with 0 +++ [pid 5451] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5454] setpgid(0, 0 [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5451] <... bpf resumed>) = 8 [pid 5450] +++ exited with 0 +++ [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5452, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5454] <... setpgid resumed>) = 0 [pid 5453] <... openat resumed>) = 3 [pid 5451] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5453] write(3, "1000", 4 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5450, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5454] <... openat resumed>) = 3 [pid 5453] <... write resumed>) = 4 [pid 5451] <... ioctl resumed>) = 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5454] write(3, "1000", 4 [pid 5453] close(3 [pid 5451] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5454] <... write resumed>) = 4 [pid 5453] <... close resumed>) = 0 [pid 5454] close(3 [pid 5453] write(1, "executing program\n", 18executing program executing program [pid 5454] <... close resumed>) = 0 [pid 5453] <... write resumed>) = 18 [pid 5451] <... bpf resumed>) = 9 [pid 5454] write(1, "executing program\n", 18 [pid 5453] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5454] <... write resumed>) = 18 [pid 5451] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5454] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5453] <... bpf resumed>) = 3 [pid 5451] <... bpf resumed>) = 10 [pid 5453] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5451] exit_group(0) = ? [pid 5454] <... bpf resumed>) = 3 [pid 5453] <... bpf resumed>) = 4 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5454] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5455 attached [pid 5453] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16./strace-static-x86_64: Process 5456 attached [pid 5455] set_robust_list(0x555582d82660, 24 [pid 5454] <... bpf resumed>) = 4 [pid 5451] +++ exited with 0 +++ [pid 5456] set_robust_list(0x555582d82660, 24 [pid 5455] <... set_robust_list resumed>) = 0 [pid 5454] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5451, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5455 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5456 [pid 5456] <... set_robust_list resumed>) = 0 [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5455] <... prctl resumed>) = 0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5456] setpgid(0, 0 [pid 5455] setpgid(0, 0) = 0 [pid 5456] <... setpgid resumed>) = 0 [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5457 attached [pid 5455] <... openat resumed>) = 3 [pid 5457] set_robust_list(0x555582d82660, 24 [pid 5456] <... openat resumed>) = 3 [pid 5457] <... set_robust_list resumed>) = 0 [pid 5455] write(3, "1000", 4 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5457 [pid 5455] <... write resumed>) = 4 [pid 5455] close(3 [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5456] write(3, "1000", 4) = 4 [pid 5456] close(3) = 0 executing program [pid 5456] write(1, "executing program\n", 18) = 18 [pid 5456] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5457] <... prctl resumed>) = 0 executing program [pid 5455] <... close resumed>) = 0 [pid 5457] setpgid(0, 0 [pid 5455] write(1, "executing program\n", 18 [pid 5457] <... setpgid resumed>) = 0 [pid 5455] <... write resumed>) = 18 [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5456] <... bpf resumed>) = 3 [pid 5455] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5457] <... openat resumed>) = 3 [pid 5454] <... bpf resumed>) = 5 [pid 5456] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5457] write(3, "1000", 4 [pid 5455] <... bpf resumed>) = 3 [pid 5454] perf_event_open( [pid 5453] <... bpf resumed>) = 5 [pid 5457] <... write resumed>) = 4 [pid 5456] <... bpf resumed>) = 4 [pid 5456] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5457] close(3 [pid 5456] perf_event_open( [pid 5455] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5454] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5453] perf_event_open( [pid 5457] <... close resumed>) = 0 executing program [pid 5457] write(1, "executing program\n", 18 [pid 5454] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5457] <... write resumed>) = 18 [pid 5456] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5457] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5456] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5454] <... bpf resumed>) = 7 [pid 5455] <... bpf resumed>) = 4 [pid 5453] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5455] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5453] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5457] <... bpf resumed>) = 3 [pid 5456] <... bpf resumed>) = 7 [pid 5455] <... bpf resumed>) = 5 [pid 5454] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5453] <... bpf resumed>) = 7 [pid 5456] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5455] perf_event_open( [pid 5453] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5457] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5455] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5454] <... bpf resumed>) = 8 [pid 5453] <... bpf resumed>) = 8 [pid 5457] <... bpf resumed>) = 4 [pid 5456] <... bpf resumed>) = 8 [pid 5455] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5454] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5453] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5457] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5456] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5455] <... bpf resumed>) = 7 [pid 5454] <... ioctl resumed>) = 0 [pid 5453] <... ioctl resumed>) = 0 [pid 5457] <... bpf resumed>) = 5 [pid 5456] <... ioctl resumed>) = 0 [pid 5457] perf_event_open( [pid 5455] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5454] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5453] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5457] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5456] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5455] <... bpf resumed>) = 8 [pid 5457] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5456] <... bpf resumed>) = 9 [pid 5455] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5454] <... bpf resumed>) = 9 [pid 5453] <... bpf resumed>) = 9 [pid 5457] <... bpf resumed>) = 7 [pid 5455] <... ioctl resumed>) = 0 [pid 5455] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5457] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5456] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5454] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5453] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5455] <... bpf resumed>) = 9 [pid 5457] <... bpf resumed>) = 8 [pid 5457] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5456] <... bpf resumed>) = 10 [pid 5457] <... ioctl resumed>) = 0 [pid 5455] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5454] <... bpf resumed>) = 10 [pid 5453] <... bpf resumed>) = 10 [pid 5456] exit_group(0 [pid 5457] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5455] <... bpf resumed>) = 10 [pid 5456] <... exit_group resumed>) = ? [pid 5454] exit_group(0 [pid 5453] exit_group(0 [pid 5457] <... bpf resumed>) = 9 [pid 5455] exit_group(0 [pid 5453] <... exit_group resumed>) = ? [pid 5457] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5455] <... exit_group resumed>) = ? [pid 5454] <... exit_group resumed>) = ? [pid 5457] <... bpf resumed>) = 10 [pid 5457] exit_group(0 [pid 5456] +++ exited with 0 +++ [pid 5457] <... exit_group resumed>) = ? [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5453] +++ exited with 0 +++ [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5454] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5453, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5454, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5458 ./strace-static-x86_64: Process 5459 attached ./strace-static-x86_64: Process 5458 attached [pid 5238] <... restart_syscall resumed>) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5459 [pid 5459] set_robust_list(0x555582d82660, 24 [pid 5458] set_robust_list(0x555582d82660, 24 [pid 5459] <... set_robust_list resumed>) = 0 [pid 5458] <... set_robust_list resumed>) = 0 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5458] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5460 attached [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5458] <... prctl resumed>) = 0 [pid 5460] set_robust_list(0x555582d82660, 24 [pid 5459] <... prctl resumed>) = 0 [pid 5460] <... set_robust_list resumed>) = 0 [pid 5459] setpgid(0, 0 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5460 [pid 5460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5459] <... setpgid resumed>) = 0 [pid 5458] setpgid(0, 0) = 0 [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5460] <... prctl resumed>) = 0 [pid 5458] <... openat resumed>) = 3 [pid 5460] setpgid(0, 0 [pid 5459] <... openat resumed>) = 3 [pid 5460] <... setpgid resumed>) = 0 [pid 5459] write(3, "1000", 4 [pid 5458] write(3, "1000", 4 [pid 5460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5459] <... write resumed>) = 4 [pid 5458] <... write resumed>) = 4 [pid 5460] <... openat resumed>) = 3 [pid 5459] close(3 [pid 5458] close(3 [pid 5460] write(3, "1000", 4 [pid 5459] <... close resumed>) = 0 [pid 5458] <... close resumed>) = 0 [pid 5455] +++ exited with 0 +++ [pid 5460] <... write resumed>) = 4 [pid 5459] write(1, "executing program\n", 18executing program executing program [pid 5458] write(1, "executing program\n", 18 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5455, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5460] close(3 [pid 5459] <... write resumed>) = 18 [pid 5458] <... write resumed>) = 18 [pid 5460] <... close resumed>) = 0 executing program [pid 5458] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5460] write(1, "executing program\n", 18 [pid 5459] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5460] <... write resumed>) = 18 ./strace-static-x86_64: Process 5461 attached [pid 5460] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5459] <... bpf resumed>) = 3 [pid 5458] <... bpf resumed>) = 3 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5461 [pid 5460] <... bpf resumed>) = 3 [pid 5461] set_robust_list(0x555582d82660, 24 [pid 5458] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5461] <... set_robust_list resumed>) = 0 [pid 5460] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5459] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5457] +++ exited with 0 +++ [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5458] <... bpf resumed>) = 4 [pid 5459] <... bpf resumed>) = 4 [pid 5461] <... prctl resumed>) = 0 [pid 5460] <... bpf resumed>) = 4 [pid 5458] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5457, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5461] setpgid(0, 0 [pid 5460] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5459] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5461] <... setpgid resumed>) = 0 [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5461] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5462 attached [pid 5461] close(3 [pid 5460] <... bpf resumed>) = 5 [pid 5459] <... bpf resumed>) = 5 [pid 5458] <... bpf resumed>) = 5 [pid 5462] set_robust_list(0x555582d82660, 24 [pid 5461] <... close resumed>) = 0 [pid 5460] perf_event_open( [pid 5459] perf_event_open( [pid 5458] perf_event_open( [pid 5462] <... set_robust_list resumed>) = 0 [pid 5461] write(1, "executing program\n", 18executing program [pid 5460] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5459] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5462 [pid 5462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5461] <... write resumed>) = 18 [pid 5461] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5462] <... prctl resumed>) = 0 [pid 5458] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5462] setpgid(0, 0 [pid 5461] <... bpf resumed>) = 3 [pid 5459] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5458] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5462] <... setpgid resumed>) = 0 [pid 5461] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5460] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5459] <... bpf resumed>) = 7 [pid 5462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5458] <... bpf resumed>) = 7 [pid 5462] <... openat resumed>) = 3 [pid 5460] <... bpf resumed>) = 7 executing program [pid 5459] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5458] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5462] write(3, "1000", 4) = 4 [pid 5462] close(3) = 0 [pid 5462] write(1, "executing program\n", 18) = 18 [pid 5462] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5460] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5459] <... bpf resumed>) = 8 [pid 5458] <... bpf resumed>) = 8 [pid 5462] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5461] <... bpf resumed>) = 4 [pid 5459] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5459] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5462] <... bpf resumed>) = 4 [pid 5461] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5460] <... bpf resumed>) = 8 [pid 5458] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5462] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5461] <... bpf resumed>) = 5 [pid 5459] <... bpf resumed>) = 9 [pid 5458] <... ioctl resumed>) = 0 [pid 5461] perf_event_open( [pid 5460] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5462] <... bpf resumed>) = 5 [pid 5461] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5460] <... ioctl resumed>) = 0 [pid 5459] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5458] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5462] perf_event_open( [pid 5461] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5460] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5459] <... bpf resumed>) = 10 [pid 5462] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5458] <... bpf resumed>) = 9 [pid 5461] <... bpf resumed>) = 7 [pid 5462] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5459] exit_group(0 [pid 5458] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5462] <... bpf resumed>) = 7 [pid 5461] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5460] <... bpf resumed>) = 9 [pid 5459] <... exit_group resumed>) = ? [pid 5458] <... bpf resumed>) = 10 [pid 5462] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5461] <... bpf resumed>) = 8 [pid 5460] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5458] exit_group(0) = ? [pid 5462] <... bpf resumed>) = 8 [pid 5460] <... bpf resumed>) = 10 [pid 5461] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5461] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5460] exit_group(0 [pid 5461] <... bpf resumed>) = 9 [pid 5460] <... exit_group resumed>) = ? [pid 5458] +++ exited with 0 +++ [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5458, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5462] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5461] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5462] <... ioctl resumed>) = 0 [pid 5462] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5462] <... bpf resumed>) = 9 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5459] +++ exited with 0 +++ ./strace-static-x86_64: Process 5463 attached [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5463] set_robust_list(0x555582d82660, 24 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5463 [pid 5463] <... set_robust_list resumed>) = 0 [pid 5462] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5464 attached ) = 0 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5464 [pid 5464] set_robust_list(0x555582d82660, 24 [pid 5463] setpgid(0, 0) = 0 [pid 5464] <... set_robust_list resumed>) = 0 [pid 5464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5464] <... prctl resumed>) = 0 [pid 5463] <... openat resumed>) = 3 [pid 5464] setpgid(0, 0) = 0 [pid 5463] write(3, "1000", 4) = 4 [pid 5463] close(3 [pid 5464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5463] <... close resumed>) = 0 [pid 5464] <... openat resumed>) = 3 executing program [pid 5463] write(1, "executing program\n", 18 [pid 5462] <... bpf resumed>) = 10 [pid 5461] <... bpf resumed>) = 10 [pid 5460] +++ exited with 0 +++ [pid 5464] write(3, "1000", 4 [pid 5463] <... write resumed>) = 18 [pid 5461] exit_group(0 [pid 5462] exit_group(0 [pid 5464] <... write resumed>) = 4 [pid 5463] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5462] <... exit_group resumed>) = ? [pid 5461] <... exit_group resumed>) = ? [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5460, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5464] close(3 [pid 5463] <... bpf resumed>) = 3 [pid 5463] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144executing program [pid 5464] <... close resumed>) = 0 [pid 5464] write(1, "executing program\n", 18 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5464] <... write resumed>) = 18 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5464] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5463] <... bpf resumed>) = 4 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5463] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5463] perf_event_open( [pid 5464] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 5465 attached [pid 5462] +++ exited with 0 +++ [pid 5465] set_robust_list(0x555582d82660, 24 [pid 5464] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5465 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5462, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5465] <... set_robust_list resumed>) = 0 [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5464] <... bpf resumed>) = 4 [pid 5464] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5465] <... prctl resumed>) = 0 [pid 5465] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 5466 attached [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5464] perf_event_open( [pid 5466] set_robust_list(0x555582d82660, 24 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5466 [pid 5466] <... set_robust_list resumed>) = 0 [pid 5466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5465] <... openat resumed>) = 3 [pid 5464] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5463] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5461] +++ exited with 0 +++ [pid 5463] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5466] <... prctl resumed>) = 0 [pid 5465] write(3, "1000", 4 [pid 5464] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5461, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5466] setpgid(0, 0 [pid 5465] <... write resumed>) = 4 [pid 5464] <... bpf resumed>) = 7 [pid 5463] <... bpf resumed>) = 7 [pid 5466] <... setpgid resumed>) = 0 [pid 5465] close(3 [pid 5464] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 executing program [pid 5463] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5465] <... close resumed>) = 0 [pid 5465] write(1, "executing program\n", 18 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5465] <... write resumed>) = 18 [pid 5463] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5467 attached [pid 5465] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5463] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5467] set_robust_list(0x555582d82660, 24 [pid 5464] <... bpf resumed>) = 8 [pid 5463] <... ioctl resumed>) = 0 [pid 5467] <... set_robust_list resumed>) = 0 [pid 5463] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5466] <... openat resumed>) = 3 [pid 5467] <... prctl resumed>) = 0 [pid 5463] <... bpf resumed>) = 9 [pid 5467] setpgid(0, 0) = 0 [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5466] write(3, "1000", 4 [pid 5465] <... bpf resumed>) = 3 [pid 5464] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5463] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5467 [pid 5466] <... write resumed>) = 4 [pid 5465] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5464] <... ioctl resumed>) = 0 [pid 5463] <... bpf resumed>) = 10 [pid 5467] <... openat resumed>) = 3 [pid 5466] close(3 [pid 5465] <... bpf resumed>) = 4 [pid 5464] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5467] write(3, "1000", 4 [pid 5466] <... close resumed>) = 0 [pid 5465] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5465] perf_event_open({type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5465] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72executing program [pid 5467] <... write resumed>) = 4 [pid 5466] write(1, "executing program\n", 18 [pid 5464] <... bpf resumed>) = 9 [pid 5463] exit_group(0 [pid 5467] close(3 [pid 5466] <... write resumed>) = 18 [pid 5465] <... bpf resumed>) = 7 [pid 5464] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5463] <... exit_group resumed>) = ? [pid 5467] <... close resumed>) = 0 executing program [pid 5466] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5467] write(1, "executing program\n", 18 [pid 5466] <... bpf resumed>) = 3 [pid 5464] <... bpf resumed>) = 10 [pid 5467] <... write resumed>) = 18 [pid 5465] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5467] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5464] exit_group(0 [pid 5466] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5465] <... bpf resumed>) = 8 [pid 5464] <... exit_group resumed>) = ? [pid 5467] <... bpf resumed>) = 3 [pid 5465] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8) = 0 [pid 5467] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5465] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5467] <... bpf resumed>) = 4 [pid 5466] <... bpf resumed>) = 4 [pid 5467] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5465] <... bpf resumed>) = 9 [pid 5467] <... bpf resumed>) = 5 [pid 5466] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5465] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5464] +++ exited with 0 +++ [pid 5463] +++ exited with 0 +++ [pid 5467] perf_event_open( [pid 5466] <... bpf resumed>) = 5 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5464, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5463, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5466] perf_event_open( [pid 5467] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5465] <... bpf resumed>) = 10 [pid 5467] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5466] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5465] exit_group(0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5467] <... bpf resumed>) = 7 [pid 5465] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5468 attached [pid 5466] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5468] set_robust_list(0x555582d82660, 24 [pid 5467] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5468] <... set_robust_list resumed>) = 0 [pid 5466] <... bpf resumed>) = 7 ./strace-static-x86_64: Process 5469 attached [pid 5468] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5466] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5468 [pid 5469] set_robust_list(0x555582d82660, 24) = 0 [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5469] setpgid(0, 0 [pid 5467] <... bpf resumed>) = 8 [pid 5469] <... setpgid resumed>) = 0 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5466] <... bpf resumed>) = 8 [pid 5468] <... prctl resumed>) = 0 [pid 5469] <... openat resumed>) = 3 [pid 5468] setpgid(0, 0 [pid 5467] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5466] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5465] +++ exited with 0 +++ [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5469 [pid 5468] <... setpgid resumed>) = 0 [pid 5466] <... ioctl resumed>) = 0 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5469] write(3, "1000", 4 [pid 5468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5467] <... ioctl resumed>) = 0 [pid 5466] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5469] <... write resumed>) = 4 [pid 5468] <... openat resumed>) = 3 [pid 5467] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5469] close(3 [pid 5468] write(3, "1000", 4 [pid 5467] <... bpf resumed>) = 9 [pid 5466] <... bpf resumed>) = 9 [pid 5469] <... close resumed>) = 0 [pid 5468] <... write resumed>) = 4 [pid 5467] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5468] close(3) = 0 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program executing program [pid 5469] write(1, "executing program\n", 18 [pid 5468] write(1, "executing program\n", 18 [pid 5467] <... bpf resumed>) = 10 [pid 5466] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5469] <... write resumed>) = 18 [pid 5468] <... write resumed>) = 18 [pid 5469] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5468] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5467] exit_group(0./strace-static-x86_64: Process 5470 attached [pid 5466] <... bpf resumed>) = 10 [pid 5470] set_robust_list(0x555582d82660, 24 [pid 5467] <... exit_group resumed>) = ? [pid 5470] <... set_robust_list resumed>) = 0 [pid 5468] <... bpf resumed>) = 3 [pid 5466] exit_group(0 [pid 5470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5469] <... bpf resumed>) = 3 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5470 [pid 5470] <... prctl resumed>) = 0 [pid 5469] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5468] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5470] setpgid(0, 0 [pid 5466] <... exit_group resumed>) = ? [pid 5470] <... setpgid resumed>) = 0 [pid 5469] <... bpf resumed>) = 4 [pid 5468] <... bpf resumed>) = 4 [pid 5470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5469] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5470] <... openat resumed>) = 3 [pid 5470] write(3, "1000", 4 [pid 5468] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5470] <... write resumed>) = 4 [pid 5470] close(3) = 0 executing program [pid 5470] write(1, "executing program\n", 18) = 18 [pid 5469] <... bpf resumed>) = 5 [pid 5468] <... bpf resumed>) = 5 [pid 5467] +++ exited with 0 +++ [pid 5470] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5469] perf_event_open( [pid 5468] perf_event_open( [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5467, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5470] <... bpf resumed>) = 3 [pid 5470] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5469] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5469] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5466] +++ exited with 0 +++ [pid 5470] <... bpf resumed>) = 4 [pid 5469] <... bpf resumed>) = 7 [pid 5468] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5469] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5470] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5468] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5466, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5470] <... bpf resumed>) = 5 [pid 5469] <... bpf resumed>) = 8 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5470] perf_event_open( [pid 5469] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8./strace-static-x86_64: Process 5471 attached ) = 0 [pid 5469] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5470] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5468] <... bpf resumed>) = 7 ./strace-static-x86_64: Process 5472 attached [pid 5471] set_robust_list(0x555582d82660, 24 [pid 5470] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5469] <... bpf resumed>) = 9 [pid 5468] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5472] set_robust_list(0x555582d82660, 24 [pid 5471] <... set_robust_list resumed>) = 0 [pid 5470] <... bpf resumed>) = 7 [pid 5469] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5472] <... set_robust_list resumed>) = 0 [pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5470] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5468] <... bpf resumed>) = 8 [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5471 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5472 [pid 5472] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5471] <... prctl resumed>) = 0 [pid 5470] <... bpf resumed>) = 8 [pid 5469] <... bpf resumed>) = 10 [pid 5468] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5470] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5468] <... ioctl resumed>) = 0 [pid 5472] <... prctl resumed>) = 0 [pid 5471] setpgid(0, 0 [pid 5470] <... ioctl resumed>) = 0 [pid 5469] exit_group(0 [pid 5470] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5472] setpgid(0, 0 [pid 5471] <... setpgid resumed>) = 0 [pid 5470] <... bpf resumed>) = 9 [pid 5469] <... exit_group resumed>) = ? [pid 5468] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5472] <... setpgid resumed>) = 0 [pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5470] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5471] <... openat resumed>) = 3 [pid 5470] <... bpf resumed>) = 10 [pid 5468] <... bpf resumed>) = 9 [pid 5472] <... openat resumed>) = 3 [pid 5471] write(3, "1000", 4 [pid 5468] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5472] write(3, "1000", 4 [pid 5471] <... write resumed>) = 4 [pid 5470] exit_group(0 [pid 5472] <... write resumed>) = 4 [pid 5471] close(3 [pid 5470] <... exit_group resumed>) = ? [pid 5472] close(3 [pid 5471] <... close resumed>) = 0 [pid 5472] <... close resumed>) = 0 [pid 5472] write(1, "executing program\n", 18executing program [pid 5471] write(1, "executing program\n", 18executing program [pid 5472] <... write resumed>) = 18 [pid 5471] <... write resumed>) = 18 [pid 5471] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5472] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5471] <... bpf resumed>) = 3 [pid 5472] <... bpf resumed>) = 3 [pid 5471] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5469] +++ exited with 0 +++ [pid 5472] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5468] <... bpf resumed>) = 10 [pid 5471] <... bpf resumed>) = 4 [pid 5468] exit_group(0 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5471] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5472] <... bpf resumed>) = 4 [pid 5468] <... exit_group resumed>) = ? [pid 5239] restart_syscall(<... resuming interrupted clone ...> [pid 5470] +++ exited with 0 +++ [pid 5472] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5471] <... bpf resumed>) = 5 [pid 5239] <... restart_syscall resumed>) = 0 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5472] <... bpf resumed>) = 5 [pid 5471] perf_event_open( [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5472] perf_event_open( [pid 5471] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5472] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5471] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5472] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5468] +++ exited with 0 +++ [pid 5471] <... bpf resumed>) = 7 [pid 5472] <... bpf resumed>) = 7 [pid 5471] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5468, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 5473 attached [pid 5472] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5232] restart_syscall(<... resuming interrupted clone ...> [pid 5473] set_robust_list(0x555582d82660, 24 [pid 5471] <... bpf resumed>) = 8 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5473 [pid 5473] <... set_robust_list resumed>) = 0 [pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5472] <... bpf resumed>) = 8 [pid 5471] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5473] <... prctl resumed>) = 0 [pid 5472] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5471] <... ioctl resumed>) = 0 [pid 5473] setpgid(0, 0 [pid 5471] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128./strace-static-x86_64: Process 5474 attached [pid 5473] <... setpgid resumed>) = 0 [pid 5472] <... ioctl resumed>) = 0 [pid 5474] set_robust_list(0x555582d82660, 24 [pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5471] <... bpf resumed>) = 9 [pid 5232] <... restart_syscall resumed>) = 0 [pid 5474] <... set_robust_list resumed>) = 0 [pid 5472] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5474 [pid 5474] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5473] <... openat resumed>) = 3 [pid 5472] <... bpf resumed>) = 9 [pid 5471] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5474] <... prctl resumed>) = 0 [pid 5473] write(3, "1000", 4 [pid 5472] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5471] <... bpf resumed>) = 10 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5474] setpgid(0, 0 [pid 5473] <... write resumed>) = 4 [pid 5472] <... bpf resumed>) = 10 [pid 5473] close(3 [pid 5472] exit_group(0 [pid 5471] exit_group(0./strace-static-x86_64: Process 5475 attached [pid 5474] <... setpgid resumed>) = 0 [pid 5473] <... close resumed>) = 0 [pid 5472] <... exit_group resumed>) = ? [pid 5471] <... exit_group resumed>) = ? executing program [pid 5475] set_robust_list(0x555582d82660, 24 [pid 5474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5473] write(1, "executing program\n", 18 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5475 [pid 5475] <... set_robust_list resumed>) = 0 [pid 5474] <... openat resumed>) = 3 [pid 5473] <... write resumed>) = 18 [pid 5472] +++ exited with 0 +++ [pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5474] write(3, "1000", 4 [pid 5473] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5475] <... prctl resumed>) = 0 [pid 5474] <... write resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5472, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5474] close(3 [pid 5475] setpgid(0, 0 [pid 5474] <... close resumed>) = 0 [pid 5473] <... bpf resumed>) = 3 [pid 5233] restart_syscall(<... resuming interrupted clone ...> [pid 5475] <... setpgid resumed>) = 0 [pid 5474] write(1, "executing program\n", 18executing program [pid 5473] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5474] <... write resumed>) = 18 [pid 5475] <... openat resumed>) = 3 [pid 5474] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5473] <... bpf resumed>) = 4 [pid 5475] write(3, "1000", 4 [pid 5473] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5475] <... write resumed>) = 4 [pid 5473] <... bpf resumed>) = 5 [pid 5475] close(3 [pid 5474] <... bpf resumed>) = 3 [pid 5475] <... close resumed>) = 0 [pid 5473] perf_event_open( executing program [pid 5474] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5475] write(1, "executing program\n", 18) = 18 [pid 5475] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5474] <... bpf resumed>) = 4 [pid 5474] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5475] <... bpf resumed>) = 3 [pid 5233] <... restart_syscall resumed>) = 0 [pid 5475] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5474] <... bpf resumed>) = 5 [pid 5473] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5471] +++ exited with 0 +++ [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5475] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5474] perf_event_open( [pid 5473] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5471, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- ./strace-static-x86_64: Process 5476 attached [pid 5475] <... bpf resumed>) = 5 [pid 5474] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5475] perf_event_open( [pid 5473] <... bpf resumed>) = 7 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5476] set_robust_list(0x555582d82660, 24 [pid 5474] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5476 [pid 5475] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5473] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5476] <... set_robust_list resumed>) = 0 [pid 5475] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5474] <... bpf resumed>) = 7 [pid 5474] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5475] <... bpf resumed>) = 7 [pid 5473] <... bpf resumed>) = 8 [pid 5476] <... prctl resumed>) = 0 [pid 5475] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5474] <... bpf resumed>) = 8 [pid 5473] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5475] <... bpf resumed>) = 8 [pid 5476] setpgid(0, 0 [pid 5475] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5476] <... setpgid resumed>) = 0 [pid 5474] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5474] <... ioctl resumed>) = 0 [pid 5473] <... ioctl resumed>) = 0 [pid 5475] <... ioctl resumed>) = 0 [pid 5473] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5476] <... openat resumed>) = 3 [pid 5474] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5235] <... restart_syscall resumed>) = 0 [pid 5476] write(3, "1000", 4 [pid 5475] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5473] <... bpf resumed>) = 9 [pid 5476] <... write resumed>) = 4 [pid 5474] <... bpf resumed>) = 9 [pid 5473] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5476] close(3 [pid 5475] <... bpf resumed>) = 9 [pid 5474] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5473] <... bpf resumed>) = 10 [pid 5476] <... close resumed>) = 0 [pid 5475] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5474] <... bpf resumed>) = 10 [pid 5473] exit_group(0 [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program [pid 5476] write(1, "executing program\n", 18 [pid 5475] <... bpf resumed>) = 10 [pid 5473] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 5477 attached [pid 5476] <... write resumed>) = 18 [pid 5475] exit_group(0 [pid 5474] exit_group(0 [pid 5477] set_robust_list(0x555582d82660, 24 [pid 5476] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5475] <... exit_group resumed>) = ? [pid 5474] <... exit_group resumed>) = ? [pid 5477] <... set_robust_list resumed>) = 0 [pid 5476] <... bpf resumed>) = 3 [pid 5473] +++ exited with 0 +++ [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5477 [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5473, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5476] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5476] <... bpf resumed>) = 4 [pid 5477] setpgid(0, 0 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5477] <... setpgid resumed>) = 0 [pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5478 attached [pid 5476] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5475] +++ exited with 0 +++ [pid 5478] set_robust_list(0x555582d82660, 24 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5478 [pid 5478] <... set_robust_list resumed>) = 0 [pid 5477] <... openat resumed>) = 3 [pid 5476] <... bpf resumed>) = 5 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5478] setpgid(0, 0 [pid 5477] write(3, "1000", 4 [pid 5476] perf_event_open( [pid 5478] <... setpgid resumed>) = 0 [pid 5477] <... write resumed>) = 4 [pid 5478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5477] close(3) = 0 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5478] <... openat resumed>) = 3 [pid 5477] write(1, "executing program\n", 18./strace-static-x86_64: Process 5479 attached [pid 5478] write(3, "1000", 4executing program ) = 4 [pid 5477] <... write resumed>) = 18 [pid 5478] close(3 [pid 5477] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5479] set_robust_list(0x555582d82660, 24 [pid 5478] <... close resumed>) = 0 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5479 [pid 5479] <... set_robust_list resumed>) = 0 [pid 5479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5479] setpgid(0, 0) = 0 [pid 5478] write(1, "executing program\n", 18 [pid 5477] <... bpf resumed>) = 3 executing program [pid 5479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5478] <... write resumed>) = 18 [pid 5478] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5479] <... openat resumed>) = 3 [pid 5477] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5479] write(3, "1000", 4 [pid 5478] <... bpf resumed>) = 3 [pid 5478] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5479] <... write resumed>) = 4 [pid 5477] <... bpf resumed>) = 4 [pid 5479] close(3 [pid 5478] <... bpf resumed>) = 4 [pid 5477] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5479] <... close resumed>) = 0 executing program [pid 5479] write(1, "executing program\n", 18) = 18 [pid 5479] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5478] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5479] <... bpf resumed>) = 3 [pid 5479] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 4 [pid 5479] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5478] <... bpf resumed>) = 5 [pid 5477] <... bpf resumed>) = 5 [pid 5474] +++ exited with 0 +++ [pid 5476] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5479] <... bpf resumed>) = 5 [pid 5477] perf_event_open( [pid 5479] perf_event_open( [pid 5478] perf_event_open( [pid 5476] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5238] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5474, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5478] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5477] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5478] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5479] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5477] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5476] <... bpf resumed>) = 7 [pid 5238] restart_syscall(<... resuming interrupted clone ...> [pid 5479] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5478] <... bpf resumed>) = 7 [pid 5238] <... restart_syscall resumed>) = 0 [pid 5478] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5477] <... bpf resumed>) = 7 [pid 5476] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5479] <... bpf resumed>) = 7 [pid 5478] <... bpf resumed>) = 8 [pid 5478] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5479] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5477] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5476] <... bpf resumed>) = 8 ./strace-static-x86_64: Process 5480 attached [pid 5478] <... ioctl resumed>) = 0 [pid 5480] set_robust_list(0x555582d82660, 24 [pid 5478] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5480] <... set_robust_list resumed>) = 0 [pid 5479] <... bpf resumed>) = 8 [pid 5478] <... bpf resumed>) = 9 [pid 5477] <... bpf resumed>) = 8 [pid 5238] <... clone resumed>, child_tidptr=0x555582d82650) = 5480 [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5476] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5478] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5480] <... prctl resumed>) = 0 [pid 5479] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5477] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5476] <... ioctl resumed>) = 0 [pid 5476] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5477] <... ioctl resumed>) = 0 [pid 5480] setpgid(0, 0 [pid 5479] <... ioctl resumed>) = 0 [pid 5478] <... bpf resumed>) = 10 [pid 5477] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5476] <... bpf resumed>) = 9 [pid 5480] <... setpgid resumed>) = 0 [pid 5479] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5478] exit_group(0 [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5477] <... bpf resumed>) = 9 [pid 5476] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5479] <... bpf resumed>) = 9 [pid 5478] <... exit_group resumed>) = ? [pid 5476] <... bpf resumed>) = 10 [pid 5480] <... openat resumed>) = 3 [pid 5479] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5477] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5480] write(3, "1000", 4 [pid 5479] <... bpf resumed>) = 10 [pid 5476] exit_group(0 [pid 5480] <... write resumed>) = 4 [pid 5477] <... bpf resumed>) = 10 [pid 5479] exit_group(0 [pid 5480] close(3 [pid 5477] exit_group(0 [pid 5476] <... exit_group resumed>) = ? [pid 5480] <... close resumed>) = 0 [pid 5479] <... exit_group resumed>) = ? [pid 5477] <... exit_group resumed>) = ? [pid 5480] write(1, "executing program\n", 18 [pid 5478] +++ exited with 0 +++ [pid 5239] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5478, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- executing program [pid 5480] <... write resumed>) = 18 [pid 5480] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5239] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5481 attached [pid 5477] +++ exited with 0 +++ [pid 5481] set_robust_list(0x555582d82660, 24 [pid 5480] <... bpf resumed>) = 3 [pid 5239] <... clone resumed>, child_tidptr=0x555582d82650) = 5481 [pid 5235] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5481] <... set_robust_list resumed>) = 0 [pid 5480] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5235] restart_syscall(<... resuming interrupted clone ...> [pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5480] <... bpf resumed>) = 4 [pid 5481] setpgid(0, 0) = 0 [pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5480] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5481] <... openat resumed>) = 3 [pid 5481] write(3, "1000", 4 [pid 5480] <... bpf resumed>) = 5 [pid 5476] +++ exited with 0 +++ [pid 5235] <... restart_syscall resumed>) = 0 [pid 5481] <... write resumed>) = 4 [pid 5233] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5476, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5481] close(3 [pid 5480] perf_event_open( [pid 5481] <... close resumed>) = 0 [pid 5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5481] write(1, "executing program\n", 18executing program ./strace-static-x86_64: Process 5482 attached [pid 5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5233] <... clone resumed>, child_tidptr=0x555582d82650) = 5482 [pid 5482] set_robust_list(0x555582d82660, 24 [pid 5481] <... write resumed>) = 18 [pid 5482] <... set_robust_list resumed>) = 0 [pid 5481] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5483 attached [pid 5235] <... clone resumed>, child_tidptr=0x555582d82650) = 5483 [pid 5483] set_robust_list(0x555582d82660, 24 [pid 5482] <... prctl resumed>) = 0 [pid 5481] <... bpf resumed>) = 3 [pid 5483] <... set_robust_list resumed>) = 0 [pid 5482] setpgid(0, 0 [pid 5483] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5483] <... prctl resumed>) = 0 [pid 5482] <... setpgid resumed>) = 0 [pid 5483] setpgid(0, 0 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5483] <... setpgid resumed>) = 0 [pid 5482] <... openat resumed>) = 3 [pid 5481] <... bpf resumed>) = 4 [pid 5483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5482] write(3, "1000", 4 [pid 5481] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5480] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5479] +++ exited with 0 +++ [pid 5483] write(3, "1000", 4 [pid 5482] <... write resumed>) = 4 [pid 5483] <... write resumed>) = 4 [pid 5482] close(3 [pid 5232] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5479, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5483] close(3 [pid 5482] <... close resumed>) = 0 executing program [pid 5483] <... close resumed>) = 0 [pid 5482] write(1, "executing program\n", 18 [pid 5483] write(1, "executing program\n", 18executing program [pid 5482] <... write resumed>) = 18 [pid 5481] <... bpf resumed>) = 5 [pid 5480] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5483] <... write resumed>) = 18 [pid 5481] perf_event_open( [pid 5483] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5482] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5480] <... bpf resumed>) = 7 [pid 5232] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5481] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5480] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144./strace-static-x86_64: Process 5484 attached [pid 5483] <... bpf resumed>) = 3 [pid 5482] <... bpf resumed>) = 3 [pid 5481] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=32768, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5480] <... bpf resumed>) = 8 [pid 5484] set_robust_list(0x555582d82660, 24 [pid 5483] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5482] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=15, insns=0x20000340, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 5481] <... bpf resumed>) = 7 [pid 5480] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5232] <... clone resumed>, child_tidptr=0x555582d82650) = 5484 [pid 5484] <... set_robust_list resumed>) = 0 [pid 5483] <... bpf resumed>) = 4 [pid 5480] <... ioctl resumed>) = 0 [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5481] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_TRACEPOINT, insn_cnt=12, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144 [pid 5480] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5484] <... prctl resumed>) = 0 [pid 5483] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5482] <... bpf resumed>) = 4 [pid 5481] <... bpf resumed>) = 8 [pid 5484] setpgid(0, 0 [pid 5483] <... bpf resumed>) = 5 [pid 5480] <... bpf resumed>) = 9 [pid 5483] perf_event_open( [pid 5480] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="contention_end", prog_fd=9}}, 16 [pid 5484] <... setpgid resumed>) = 0 [pid 5483] <... perf_event_open resumed>{type=PERF_TYPE_TRACEPOINT, size=PERF_ATTR_SIZE_VER7, config=237, sample_period=0, sample_type=0, read_format=0, precise_ip=0 /* arbitrary skid */, ...}, 0, 0, -1, 0) = 6 [pid 5482] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16 [pid 5481] ioctl(6, PERF_EVENT_IOC_SET_BPF, 8 [pid 5480] <... bpf resumed>) = 10 [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5482] <... bpf resumed>) = 5 [pid 5481] <... ioctl resumed>) = 0 [pid 5481] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, insn_cnt=4, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_SOCK_CREATE, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128 [pid 5484] <... openat resumed>) = 3