./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1209572493

<...>
Warning: Permanently added '10.128.0.115' (ED25519) to the list of known hosts.
execve("./syz-executor1209572493", ["./syz-executor1209572493"], 0x7ffd663b5d20 /* 10 vars */) = 0
brk(NULL)                               = 0x555563d54000
brk(0x555563d54d40)                     = 0x555563d54d40
arch_prctl(ARCH_SET_FS, 0x555563d543c0) = 0
set_tid_address(0x555563d54690)         = 5076
set_robust_list(0x555563d546a0, 24)     = 0
rseq(0x555563d54ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1209572493", 4096) = 28
getrandom("\x85\x21\xa8\xdf\x87\x1b\x4b\xbc", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555563d54d40
brk(0x555563d75d40)                     = 0x555563d75d40
brk(0x555563d76000)                     = 0x555563d76000
mprotect(0x7fd0099ae000, 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
mkdir("./syzkaller.NaSq9j", 0700)       = 0
chmod("./syzkaller.NaSq9j", 0777)       = 0
chdir("./syzkaller.NaSq9j")             = 0
mkdir("./0", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5077 attached
, child_tidptr=0x555563d54690) = 5077
[pid  5077] set_robust_list(0x555563d546a0, 24) = 0
[pid  5077] chdir("./0")                = 0
[pid  5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5077] setpgid(0, 0)               = 0
[pid  5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5077] write(3, "1000", 4)         = 4
[pid  5077] close(3)                    = 0
[pid  5077] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5077] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5077] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5077] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5077] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5077] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5077] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5077] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5078 attached
 => {parent_tid=[5078]}, 88) = 5078
[pid  5078] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5078] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5077] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5078] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5077] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5078] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5077] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5078] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5077] <... futex resumed>)        = 0
[pid  5077] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5078] <... bpf resumed>)          = 3
[pid  5078] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5078] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5077] <... futex resumed>)        = 0
[pid  5077] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5078] <... futex resumed>)        = 0
[pid  5077] <... futex resumed>)        = 1
[pid  5078] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5077] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5078] <... bpf resumed>)          = 4
[pid  5078] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5077] <... futex resumed>)        = 0
[pid  5078] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5077] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5078] <... futex resumed>)        = 0
[pid  5077] <... futex resumed>)        = 1
[pid  5078] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5077] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5078] <... bpf resumed>)          = 0
[pid  5078] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5077] <... futex resumed>)        = 0
[pid  5078] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5077] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5078] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5077] <... futex resumed>)        = 0
[pid  5078] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5077] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5078] <... bpf resumed>)          = 5
[pid  5078] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5078] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5077] <... futex resumed>)        = 0
[pid  5077] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5078] <... futex resumed>)        = 0
[pid  5077] <... futex resumed>)        = 1
[pid  5078] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5077] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5078] <... bpf resumed>)          = 0
[pid  5078] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5077] <... futex resumed>)        = 0
[pid  5078] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5077] exit_group(0 <unfinished ...>
[pid  5078] <... futex resumed>)        = ?
[pid  5077] <... exit_group resumed>)   = ?
[pid  5078] +++ exited with 0 +++
[pid  5077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./0")                            = 0
mkdir("./1", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5079 attached
, child_tidptr=0x555563d54690) = 5079
[pid  5079] set_robust_list(0x555563d546a0, 24) = 0
[pid  5079] chdir("./1")                = 0
[pid  5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5079] setpgid(0, 0)               = 0
[pid  5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5079] write(3, "1000", 4)         = 4
[pid  5079] close(3)                    = 0
[pid  5079] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5079] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5079] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5079] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5080 attached
 <unfinished ...>
[pid  5080] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5079] <... clone3 resumed> => {parent_tid=[5080]}, 88) = 5080
[pid  5080] <... rseq resumed>)         = 0
[pid  5079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5079] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5079] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5080] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5080] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5080] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5080] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5079] <... futex resumed>)        = 0
[pid  5080] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5079] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5079] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5080] <... bpf resumed>)          = 4
[pid  5080] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5080] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5079] <... futex resumed>)        = 0
[pid  5080] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5079] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5080] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5080] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5079] <... futex resumed>)        = 0
[pid  5080] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5079] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5079] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5080] <... futex resumed>)        = 0
[pid  5079] <... futex resumed>)        = 1
[pid  5080] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5079] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5080] <... bpf resumed>)          = 5
[pid  5080] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5079] <... futex resumed>)        = 0
[pid  5080] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5079] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5080] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5079] <... futex resumed>)        = 0
[pid  5080] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5079] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5080] <... bpf resumed>)          = 0
[pid  5080] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5080] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5079] <... futex resumed>)        = 0
[pid  5079] exit_group(0)               = ?
[pid  5080] <... futex resumed>)        = ?
[pid  5080] +++ exited with 0 +++
[pid  5079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./1/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./1")                            = 0
mkdir("./2", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached
, child_tidptr=0x555563d54690) = 5081
[pid  5081] set_robust_list(0x555563d546a0, 24) = 0
[pid  5081] chdir("./2")                = 0
[pid  5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5081] setpgid(0, 0)               = 0
[pid  5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5081] write(3, "1000", 4)         = 4
[pid  5081] close(3)                    = 0
[pid  5081] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5081] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5081] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5081] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5081] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5082 attached
 => {parent_tid=[5082]}, 88) = 5082
[pid  5082] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5081] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5082] <... rseq resumed>)         = 0
[pid  5081] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5082] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5082] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5082] <... futex resumed>)        = 1
[pid  5081] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5082] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5082] <... bpf resumed>)          = 4
[pid  5081] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5081] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5082] <... futex resumed>)        = 1
[pid  5081] <... futex resumed>)        = 0
[pid  5082] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5081] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] <... bpf resumed>)          = 0
[pid  5082] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5082] <... futex resumed>)        = 1
[pid  5081] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5082] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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) = 5
[pid  5081] <... futex resumed>)        = 0
[pid  5081] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5081] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5081] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5082] <... futex resumed>)        = 1
[pid  5082] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5082] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5081] <... futex resumed>)        = 0
[pid  5082] <... futex resumed>)        = 1
[pid  5081] exit_group(0)               = ?
[pid  5082] +++ exited with 0 +++
[pid  5081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./2/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./2")                            = 0
mkdir("./3", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5083 attached
, child_tidptr=0x555563d54690) = 5083
[pid  5083] set_robust_list(0x555563d546a0, 24) = 0
[pid  5083] chdir("./3")                = 0
[pid  5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5083] setpgid(0, 0)               = 0
[pid  5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5083] write(3, "1000", 4)         = 4
[pid  5083] close(3)                    = 0
[pid  5083] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5083] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5083] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5083] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5083] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5083] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5083] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5084 attached
 <unfinished ...>
[pid  5084] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5083] <... clone3 resumed> => {parent_tid=[5084]}, 88) = 5084
[pid  5084] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5083] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5084] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5083] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5084] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5083] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5084] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5083] <... futex resumed>)        = 0
[pid  5083] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5084] <... bpf resumed>)          = 3
[pid  5084] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5083] <... futex resumed>)        = 0
[pid  5084] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5083] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5084] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5083] <... futex resumed>)        = 0
[pid  5084] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5083] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5084] <... bpf resumed>)          = 4
[pid  5084] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5083] <... futex resumed>)        = 0
[pid  5084] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5083] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5084] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5083] <... futex resumed>)        = 0
[pid  5084] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5083] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5084] <... bpf resumed>)          = 0
[pid  5084] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5083] <... futex resumed>)        = 0
[pid  5084] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5083] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5084] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5083] <... futex resumed>)        = 0
[pid  5084] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5083] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5084] <... bpf resumed>)          = 5
[pid  5084] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5083] <... futex resumed>)        = 0
[pid  5084] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5083] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5084] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5083] <... futex resumed>)        = 0
[pid  5084] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5083] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5084] <... bpf resumed>)          = 0
[pid  5084] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5083] <... futex resumed>)        = 0
[pid  5084] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5083] exit_group(0)               = ?
[pid  5084] <... futex resumed>)        = ?
[pid  5084] +++ exited with 0 +++
[pid  5083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./3/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./3")                            = 0
mkdir("./4", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached
, child_tidptr=0x555563d54690) = 5085
[pid  5085] set_robust_list(0x555563d546a0, 24) = 0
[pid  5085] chdir("./4")                = 0
[pid  5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5085] setpgid(0, 0)               = 0
[pid  5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5085] write(3, "1000", 4)         = 4
[pid  5085] close(3)                    = 0
[pid  5085] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5085] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5085] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5085] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5085] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5085] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5085] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5086 attached
 <unfinished ...>
[pid  5086] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5085] <... clone3 resumed> => {parent_tid=[5086]}, 88) = 5086
[pid  5086] <... rseq resumed>)         = 0
[pid  5085] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5086] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5085] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5086] <... set_robust_list resumed>) = 0
[pid  5085] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5085] <... futex resumed>)        = 0
[pid  5086] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5085] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5086] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5085] <... futex resumed>)        = 0
[pid  5086] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5085] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5085] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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  5086] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5085] <... futex resumed>)        = 0
[pid  5086] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5085] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] <... bpf resumed>)          = 0
[pid  5085] <... futex resumed>)        = 0
[pid  5086] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5085] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] <... futex resumed>)        = 0
[pid  5085] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5086] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5085] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5085] <... futex resumed>)        = 0
[pid  5086] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5085] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] <... bpf resumed>)          = 5
[pid  5086] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5085] <... futex resumed>)        = 0
[pid  5086] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5085] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5086] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5085] <... futex resumed>)        = 0
[pid  5085] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5086] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5086] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5085] <... futex resumed>)        = 0
[pid  5086] <... futex resumed>)        = 1
[pid  5086] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5085] exit_group(0 <unfinished ...>
[pid  5086] <... futex resumed>)        = ?
[pid  5085] <... exit_group resumed>)   = ?
[pid  5086] +++ exited with 0 +++
[pid  5085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./4/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./4")                            = 0
mkdir("./5", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached
, child_tidptr=0x555563d54690) = 5087
[pid  5087] set_robust_list(0x555563d546a0, 24) = 0
[pid  5087] chdir("./5")                = 0
[pid  5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5087] setpgid(0, 0)               = 0
[pid  5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5087] write(3, "1000", 4)         = 4
[pid  5087] close(3)                    = 0
[pid  5087] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5087] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5087] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5087] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5088 attached
 => {parent_tid=[5088]}, 88) = 5088
[pid  5088] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5087] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5088] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5087] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5088] <... set_robust_list resumed>) = 0
[pid  5088] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5087] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5087] <... futex resumed>)        = 0
[pid  5088] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5087] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] <... bpf resumed>)          = 3
[pid  5088] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5088] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5087] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] <... bpf resumed>)          = 4
[pid  5087] <... futex resumed>)        = 0
[pid  5087] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5087] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5088] <... futex resumed>)        = 0
[pid  5087] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5087] <... futex resumed>)        = 0
[pid  5088] <... bpf resumed>)          = 0
[pid  5087] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5088] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5087] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5088] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5087] <... futex resumed>)        = 0
[pid  5088] <... bpf resumed>)          = 5
[pid  5087] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5087] <... futex resumed>)        = 0
[pid  5087] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5088] <... futex resumed>)        = 1
[pid  5087] <... futex resumed>)        = 0
[pid  5088] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5087] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5088] <... bpf resumed>)          = 0
[pid  5088] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5087] <... futex resumed>)        = 0
[pid  5088] <... futex resumed>)        = 1
[pid  5087] exit_group(0)               = ?
[pid  5088] +++ exited with 0 +++
[pid  5087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./5/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./5")                            = 0
mkdir("./6", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached
, child_tidptr=0x555563d54690) = 5089
[pid  5089] set_robust_list(0x555563d546a0, 24) = 0
[pid  5089] chdir("./6")                = 0
[pid  5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5089] setpgid(0, 0)               = 0
[pid  5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5089] write(3, "1000", 4)         = 4
[pid  5089] close(3)                    = 0
[pid  5089] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5089] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5089] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5089] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5089] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5089] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5089] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5090 attached
 <unfinished ...>
[pid  5090] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5089] <... clone3 resumed> => {parent_tid=[5090]}, 88) = 5090
[pid  5090] <... rseq resumed>)         = 0
[pid  5089] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5090] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5089] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5090] <... set_robust_list resumed>) = 0
[pid  5089] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5089] <... futex resumed>)        = 0
[pid  5090] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5089] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5090] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5090] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5089] <... futex resumed>)        = 0
[pid  5090] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5089] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5089] <... futex resumed>)        = 0
[pid  5090] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5089] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5090] <... bpf resumed>)          = 4
[pid  5090] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5089] <... futex resumed>)        = 0
[pid  5090] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5089] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... bpf resumed>)          = 0
[pid  5089] <... futex resumed>)        = 0
[pid  5090] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5089] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5090] <... futex resumed>)        = 0
[pid  5089] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5090] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5089] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5089] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5090] <... bpf resumed>)          = 5
[pid  5090] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5089] <... futex resumed>)        = 0
[pid  5090] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5089] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5090] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5089] <... futex resumed>)        = 0
[pid  5090] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5089] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5090] <... bpf resumed>)          = 0
[pid  5090] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5090] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5089] <... futex resumed>)        = 0
[pid  5089] exit_group(0 <unfinished ...>
[pid  5090] <... futex resumed>)        = ?
[pid  5089] <... exit_group resumed>)   = ?
[pid  5090] +++ exited with 0 +++
[pid  5089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./6/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./6")                            = 0
mkdir("./7", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5091 attached
, child_tidptr=0x555563d54690) = 5091
[pid  5091] set_robust_list(0x555563d546a0, 24) = 0
[pid  5091] chdir("./7")                = 0
[pid  5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5091] setpgid(0, 0)               = 0
[pid  5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5091] write(3, "1000", 4)         = 4
[pid  5091] close(3)                    = 0
[pid  5091] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5091] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5091] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5091] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5091] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5091] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5091] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5092 attached
 <unfinished ...>
[pid  5092] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5091] <... clone3 resumed> => {parent_tid=[5092]}, 88) = 5092
[pid  5092] <... rseq resumed>)         = 0
[pid  5092] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5091] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5092] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5091] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5091] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5092] <... futex resumed>)        = 0
[pid  5091] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5092] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5091] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5092] <... futex resumed>)        = 1
[pid  5091] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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  5092] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5092] <... futex resumed>)        = 1
[pid  5091] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5092] <... bpf resumed>)          = 0
[pid  5091] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5092] <... futex resumed>)        = 0
[pid  5091] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5092] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5092] <... bpf resumed>)          = 5
[pid  5091] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5091] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5091] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5092] <... futex resumed>)        = 1
[pid  5092] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5092] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5091] <... futex resumed>)        = 0
[pid  5092] <... futex resumed>)        = 1
[pid  5091] exit_group(0)               = ?
[pid  5092] +++ exited with 0 +++
[pid  5091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./7/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./7")                            = 0
mkdir("./8", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5093 attached
, child_tidptr=0x555563d54690) = 5093
[pid  5093] set_robust_list(0x555563d546a0, 24) = 0
[pid  5093] chdir("./8")                = 0
[pid  5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5093] setpgid(0, 0)               = 0
[pid  5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5093] write(3, "1000", 4)         = 4
[pid  5093] close(3)                    = 0
[pid  5093] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5093] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5093] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5093] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5093] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5093] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5093] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5094 attached
 <unfinished ...>
[pid  5094] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5093] <... clone3 resumed> => {parent_tid=[5094]}, 88) = 5094
[pid  5094] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5093] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5094] <... set_robust_list resumed>) = 0
[pid  5094] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5093] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5094] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5093] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5093] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] <... bpf resumed>)          = 3
[pid  5094] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5093] <... futex resumed>)        = 0
[pid  5094] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5093] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5093] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] <... bpf resumed>)          = 4
[pid  5094] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5094] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5093] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] <... futex resumed>)        = 0
[pid  5093] <... futex resumed>)        = 1
[pid  5094] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5093] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] <... bpf resumed>)          = 0
[pid  5094] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5093] <... futex resumed>)        = 0
[pid  5094] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5094] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5093] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] <... bpf resumed>)          = 5
[pid  5094] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5094] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5093] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5094] <... futex resumed>)        = 0
[pid  5094] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5093] <... futex resumed>)        = 1
[pid  5093] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5094] <... bpf resumed>)          = 0
[pid  5094] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5093] <... futex resumed>)        = 0
[pid  5094] <... futex resumed>)        = 1
[pid  5093] exit_group(0 <unfinished ...>
[pid  5094] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid  5093] <... exit_group resumed>)   = ?
[pid  5094] +++ exited with 0 +++
[pid  5093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./8/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./8")                            = 0
mkdir("./9", 0777)                      = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5095 attached
, child_tidptr=0x555563d54690) = 5095
[pid  5095] set_robust_list(0x555563d546a0, 24) = 0
[pid  5095] chdir("./9")                = 0
[pid  5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5095] setpgid(0, 0)               = 0
[pid  5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5095] write(3, "1000", 4)         = 4
[pid  5095] close(3)                    = 0
[pid  5095] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5095] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5095] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5095] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5096 attached
 => {parent_tid=[5096]}, 88) = 5096
[pid  5096] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5096] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5096] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5095] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5096] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5096] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5095] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5096] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5095] <... futex resumed>)        = 1
[pid  5095] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5096] <... bpf resumed>)          = 3
[pid  5096] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5095] <... futex resumed>)        = 0
[pid  5096] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5095] <... futex resumed>)        = 0
[pid  5096] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5095] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5096] <... bpf resumed>)          = 4
[pid  5096] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] <... futex resumed>)        = 0
[pid  5095] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] <... futex resumed>)        = 0
[pid  5095] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5096] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5096] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5095] <... futex resumed>)        = 0
[pid  5096] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5095] <... futex resumed>)        = 0
[pid  5096] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5095] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5096] <... bpf resumed>)          = 5
[pid  5096] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5096] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] <... futex resumed>)        = 0
[pid  5095] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5096] <... futex resumed>)        = 0
[pid  5095] <... futex resumed>)        = 1
[pid  5096] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5095] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5096] <... bpf resumed>)          = 0
[pid  5096] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5095] <... futex resumed>)        = 0
[pid  5096] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5095] exit_group(0 <unfinished ...>
[pid  5096] <... futex resumed>)        = ?
[pid  5095] <... exit_group resumed>)   = ?
[pid  5096] +++ exited with 0 +++
[pid  5095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./9/binderfs")                  = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./9")                            = 0
mkdir("./10", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5097 attached
, child_tidptr=0x555563d54690) = 5097
[pid  5097] set_robust_list(0x555563d546a0, 24) = 0
[pid  5097] chdir("./10")               = 0
[pid  5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5097] setpgid(0, 0)               = 0
[pid  5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "1000", 4)         = 4
[pid  5097] close(3)                    = 0
[pid  5097] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5097] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5097] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5097] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5097] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5097] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5097] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5098 attached
 => {parent_tid=[5098]}, 88) = 5098
[pid  5098] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5097] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5098] <... rseq resumed>)         = 0
[pid  5097] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5098] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5097] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] <... set_robust_list resumed>) = 0
[pid  5097] <... futex resumed>)        = 0
[pid  5098] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5097] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5098] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5098] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5097] <... futex resumed>)        = 0
[pid  5098] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5097] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5097] <... futex resumed>)        = 0
[pid  5097] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] <... bpf resumed>)          = 4
[pid  5098] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5097] <... futex resumed>)        = 0
[pid  5098] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5097] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5097] <... futex resumed>)        = 0
[pid  5098] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5097] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] <... bpf resumed>)          = 0
[pid  5098] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5097] <... futex resumed>)        = 0
[pid  5098] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5097] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] <... futex resumed>)        = 0
[pid  5097] <... futex resumed>)        = 1
[pid  5098] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5097] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] <... bpf resumed>)          = 5
[pid  5098] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5097] <... futex resumed>)        = 0
[pid  5098] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5097] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5098] <... futex resumed>)        = 0
[pid  5097] <... futex resumed>)        = 1
[pid  5098] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5097] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5098] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5097] <... futex resumed>)        = 0
[pid  5097] exit_group(0 <unfinished ...>
[pid  5098] <... futex resumed>)        = ?
[pid  5097] <... exit_group resumed>)   = ?
[pid  5098] +++ exited with 0 +++
[pid  5097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./10/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./10")                           = 0
mkdir("./11", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5099
./strace-static-x86_64: Process 5099 attached
[pid  5099] set_robust_list(0x555563d546a0, 24) = 0
[pid  5099] chdir("./11")               = 0
[pid  5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5099] setpgid(0, 0)               = 0
[pid  5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5099] write(3, "1000", 4)         = 4
[pid  5099] close(3)                    = 0
[pid  5099] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5099] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5099] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5099] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5100 attached
 <unfinished ...>
[pid  5100] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5099] <... clone3 resumed> => {parent_tid=[5100]}, 88) = 5100
[pid  5100] <... rseq resumed>)         = 0
[pid  5099] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5100] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5099] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5100] <... set_robust_list resumed>) = 0
[pid  5099] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5099] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5100] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5099] <... futex resumed>)        = 0
[pid  5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5099] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] <... bpf resumed>)          = 4
[pid  5099] <... futex resumed>)        = 0
[pid  5099] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... futex resumed>)        = 1
[pid  5099] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... bpf resumed>)          = 0
[pid  5099] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... futex resumed>)        = 1
[pid  5099] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... bpf resumed>)          = 5
[pid  5099] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5099] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] <... futex resumed>)        = 1
[pid  5099] <... futex resumed>)        = 0
[pid  5100] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5099] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5100] <... bpf resumed>)          = 0
[pid  5100] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5099] <... futex resumed>)        = 0
[pid  5100] <... futex resumed>)        = 1
[pid  5099] exit_group(0)               = ?
[pid  5100] +++ exited with 0 +++
[pid  5099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./11/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./11")                           = 0
mkdir("./12", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached
, child_tidptr=0x555563d54690) = 5101
[pid  5101] set_robust_list(0x555563d546a0, 24) = 0
[pid  5101] chdir("./12")               = 0
[pid  5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5101] setpgid(0, 0)               = 0
[pid  5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5101] write(3, "1000", 4)         = 4
[pid  5101] close(3)                    = 0
[pid  5101] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5101] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5101] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5101] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5101] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5101] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5101] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5102 attached
 => {parent_tid=[5102]}, 88) = 5102
[pid  5102] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5102] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5102] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5101] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5102] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5102] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5101] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5101] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] <... futex resumed>)        = 0
[pid  5101] <... futex resumed>)        = 1
[pid  5102] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5101] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5102] <... bpf resumed>)          = 3
[pid  5102] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5101] <... futex resumed>)        = 0
[pid  5102] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5101] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5101] <... futex resumed>)        = 0
[pid  5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5101] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5102] <... bpf resumed>)          = 4
[pid  5102] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5101] <... futex resumed>)        = 0
[pid  5102] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5101] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5101] <... futex resumed>)        = 0
[pid  5102] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5101] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5102] <... bpf resumed>)          = 0
[pid  5102] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5101] <... futex resumed>)        = 0
[pid  5102] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5101] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5102] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5101] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5102] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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) = 5
[pid  5102] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5101] <... futex resumed>)        = 0
[pid  5102] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5101] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5101] <... futex resumed>)        = 0
[pid  5102] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5101] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5102] <... bpf resumed>)          = 0
[pid  5102] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] <... futex resumed>)        = 0
[pid  5102] <... futex resumed>)        = 1
[pid  5102] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5101] exit_group(0 <unfinished ...>
[pid  5102] <... futex resumed>)        = ?
[pid  5101] <... exit_group resumed>)   = ?
[pid  5102] +++ exited with 0 +++
[pid  5101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./12/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./12")                           = 0
mkdir("./13", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5103 attached
 <unfinished ...>
[pid  5103] set_robust_list(0x555563d546a0, 24 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x555563d54690) = 5103
[pid  5103] <... set_robust_list resumed>) = 0
[pid  5103] chdir("./13")               = 0
[pid  5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5103] setpgid(0, 0)               = 0
[pid  5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5103] write(3, "1000", 4)         = 4
[pid  5103] close(3)                    = 0
[pid  5103] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5103] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5103] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5103] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5103] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5103] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5104 attached
 <unfinished ...>
[pid  5104] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5104] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5104] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5103] <... clone3 resumed> => {parent_tid=[5104]}, 88) = 5104
[pid  5104] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5104] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5103] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] <... futex resumed>)        = 0
[pid  5103] <... futex resumed>)        = 1
[pid  5104] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5103] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... bpf resumed>)          = 3
[pid  5104] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5103] <... futex resumed>)        = 0
[pid  5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5103] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5103] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... bpf resumed>)          = 4
[pid  5104] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5103] <... futex resumed>)        = 0
[pid  5104] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5103] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5103] <... futex resumed>)        = 0
[pid  5104] <... bpf resumed>)          = 0
[pid  5103] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5104] <... futex resumed>)        = 0
[pid  5103] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5103] <... futex resumed>)        = 0
[pid  5103] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... bpf resumed>)          = 5
[pid  5104] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5103] <... futex resumed>)        = 0
[pid  5104] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5103] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5104] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5103] <... futex resumed>)        = 0
[pid  5104] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5103] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5104] <... bpf resumed>)          = 0
[pid  5104] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5103] <... futex resumed>)        = 0
[pid  5104] <... futex resumed>)        = 1
[pid  5103] exit_group(0)               = ?
[pid  5104] +++ exited with 0 +++
[pid  5103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./13/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./13")                           = 0
mkdir("./14", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5105
./strace-static-x86_64: Process 5105 attached
[pid  5105] set_robust_list(0x555563d546a0, 24) = 0
[pid  5105] chdir("./14")               = 0
[pid  5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5105] setpgid(0, 0)               = 0
[pid  5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5105] write(3, "1000", 4)         = 4
[pid  5105] close(3)                    = 0
[pid  5105] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5105] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5105] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5105] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5105] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5105] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5106 attached
 <unfinished ...>
[pid  5106] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5106] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5105] <... clone3 resumed> => {parent_tid=[5106]}, 88) = 5106
[pid  5106] <... set_robust_list resumed>) = 0
[pid  5105] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5106] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5105] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5106] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5106] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5105] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5105] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] <... bpf resumed>)          = 3
[pid  5106] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5105] <... futex resumed>)        = 0
[pid  5106] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5105] <... futex resumed>)        = 0
[pid  5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5105] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] <... bpf resumed>)          = 4
[pid  5106] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5106] <... futex resumed>)        = 1
[pid  5105] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5106] <... bpf resumed>)          = 0
[pid  5105] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5105] <... futex resumed>)        = 0
[pid  5106] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5105] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5105] <... futex resumed>)        = 0
[pid  5106] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5105] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5106] <... bpf resumed>)          = 5
[pid  5106] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5106] <... futex resumed>)        = 1
[pid  5105] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5106] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5105] <... futex resumed>)        = 0
[pid  5106] <... bpf resumed>)          = 0
[pid  5106] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5105] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5106] <... futex resumed>)        = 0
[pid  5105] exit_group(0)               = ?
[pid  5106] +++ exited with 0 +++
[pid  5105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./14/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./14")                           = 0
mkdir("./15", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5107
./strace-static-x86_64: Process 5107 attached
[pid  5107] set_robust_list(0x555563d546a0, 24) = 0
[pid  5107] chdir("./15")               = 0
[pid  5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5107] setpgid(0, 0)               = 0
[pid  5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5107] write(3, "1000", 4)         = 4
[pid  5107] close(3)                    = 0
[pid  5107] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5107] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5107] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5107] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5107] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5107] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5107] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5108 attached
 <unfinished ...>
[pid  5108] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5107] <... clone3 resumed> => {parent_tid=[5108]}, 88) = 5108
[pid  5108] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5107] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5108] <... set_robust_list resumed>) = 0
[pid  5107] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5108] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5107] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5107] <... futex resumed>)        = 0
[pid  5108] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5107] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5108] <... bpf resumed>)          = 3
[pid  5108] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] <... futex resumed>)        = 0
[pid  5108] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5107] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5107] <... futex resumed>)        = 0
[pid  5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5107] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5108] <... bpf resumed>)          = 4
[pid  5108] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5108] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5107] <... futex resumed>)        = 0
[pid  5107] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5108] <... futex resumed>)        = 0
[pid  5107] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5108] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5108] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] <... futex resumed>)        = 0
[pid  5108] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5107] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5107] <... futex resumed>)        = 0
[pid  5108] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5107] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5108] <... bpf resumed>)          = 5
[pid  5108] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] <... futex resumed>)        = 0
[pid  5108] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5107] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5107] <... futex resumed>)        = 0
[pid  5108] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5107] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5108] <... bpf resumed>)          = 0
[pid  5108] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5107] <... futex resumed>)        = 0
[pid  5108] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5107] exit_group(0 <unfinished ...>
[pid  5108] <... futex resumed>)        = ?
[pid  5107] <... exit_group resumed>)   = ?
[pid  5108] +++ exited with 0 +++
[pid  5107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./15/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./15")                           = 0
mkdir("./16", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5109
./strace-static-x86_64: Process 5109 attached
[pid  5109] set_robust_list(0x555563d546a0, 24) = 0
[pid  5109] chdir("./16")               = 0
[pid  5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5109] setpgid(0, 0)               = 0
[pid  5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5109] write(3, "1000", 4)         = 4
[pid  5109] close(3)                    = 0
[pid  5109] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5109] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5109] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5109] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5109] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5109] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5109] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5110 attached
 <unfinished ...>
[pid  5110] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5109] <... clone3 resumed> => {parent_tid=[5110]}, 88) = 5110
[pid  5110] <... rseq resumed>)         = 0
[pid  5109] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5110] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5109] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5110] <... set_robust_list resumed>) = 0
[pid  5109] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5109] <... futex resumed>)        = 0
[pid  5110] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5109] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] <... bpf resumed>)          = 3
[pid  5110] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5109] <... futex resumed>)        = 0
[pid  5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5109] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5109] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] <... bpf resumed>)          = 4
[pid  5110] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5109] <... futex resumed>)        = 0
[pid  5110] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5109] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5110] <... futex resumed>)        = 0
[pid  5109] <... futex resumed>)        = 1
[pid  5110] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5109] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] <... bpf resumed>)          = 0
[pid  5110] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5110] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5109] <... futex resumed>)        = 0
[pid  5109] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5110] <... futex resumed>)        = 0
[pid  5109] <... futex resumed>)        = 1
[pid  5110] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5109] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] <... bpf resumed>)          = 5
[pid  5110] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5109] <... futex resumed>)        = 0
[pid  5110] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5109] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5110] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5109] <... futex resumed>)        = 0
[pid  5110] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5109] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5110] <... bpf resumed>)          = 0
[pid  5110] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5110] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5109] <... futex resumed>)        = 0
[pid  5109] exit_group(0 <unfinished ...>
[pid  5110] <... futex resumed>)        = ?
[pid  5109] <... exit_group resumed>)   = ?
[pid  5110] +++ exited with 0 +++
[pid  5109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./16/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./16")                           = 0
mkdir("./17", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached
, child_tidptr=0x555563d54690) = 5111
[pid  5111] set_robust_list(0x555563d546a0, 24) = 0
[pid  5111] chdir("./17")               = 0
[pid  5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5111] setpgid(0, 0)               = 0
[pid  5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5111] write(3, "1000", 4)         = 4
[pid  5111] close(3)                    = 0
[pid  5111] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5111] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5111] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5111] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5111] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5111] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5112 attached
 <unfinished ...>
[pid  5112] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5111] <... clone3 resumed> => {parent_tid=[5112]}, 88) = 5112
[pid  5112] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5111] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5112] <... set_robust_list resumed>) = 0
[pid  5111] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5112] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5111] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5111] <... futex resumed>)        = 0
[pid  5112] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5111] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... bpf resumed>)          = 3
[pid  5112] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5111] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5111] <... futex resumed>)        = 0
[pid  5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5111] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... bpf resumed>)          = 4
[pid  5112] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5111] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5111] <... futex resumed>)        = 0
[pid  5112] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5111] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... bpf resumed>)          = 0
[pid  5112] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5111] <... futex resumed>)        = 0
[pid  5112] <... futex resumed>)        = 1
[pid  5111] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] <... bpf resumed>)          = 5
[pid  5112] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5111] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5112] <... bpf resumed>)          = 0
[pid  5111] <... futex resumed>)        = 0
[pid  5111] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5112] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5111] <... futex resumed>)        = 0
[pid  5112] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5111] exit_group(0 <unfinished ...>
[pid  5112] <... futex resumed>)        = ?
[pid  5111] <... exit_group resumed>)   = ?
[pid  5112] +++ exited with 0 +++
[pid  5111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./17/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./17")                           = 0
mkdir("./18", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5113 attached
, child_tidptr=0x555563d54690) = 5113
[pid  5113] set_robust_list(0x555563d546a0, 24) = 0
[pid  5113] chdir("./18")               = 0
[pid  5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5113] setpgid(0, 0)               = 0
[pid  5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5113] write(3, "1000", 4)         = 4
[pid  5113] close(3)                    = 0
[pid  5113] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5113] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5113] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5113] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5113] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5113] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5113] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5114 attached
 <unfinished ...>
[pid  5114] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5113] <... clone3 resumed> => {parent_tid=[5114]}, 88) = 5114
[pid  5114] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5113] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5114] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5113] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5114] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5113] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5114] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5113] <... futex resumed>)        = 0
[pid  5114] <... bpf resumed>)          = 3
[pid  5113] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5114] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5113] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5114] <... futex resumed>)        = 0
[pid  5113] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5113] <... futex resumed>)        = 0
[pid  5114] <... bpf resumed>)          = 4
[pid  5113] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5114] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5113] <... futex resumed>)        = 0
[pid  5114] <... futex resumed>)        = 1
[pid  5113] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5114] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5113] <... futex resumed>)        = 0
[pid  5114] <... bpf resumed>)          = 0
[pid  5113] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5114] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5113] <... futex resumed>)        = 0
[pid  5114] <... futex resumed>)        = 1
[pid  5113] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5114] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5113] <... futex resumed>)        = 0
[pid  5113] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5114] <... bpf resumed>)          = 5
[pid  5114] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5113] <... futex resumed>)        = 0
[pid  5114] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5113] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5114] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5113] <... futex resumed>)        = 0
[pid  5114] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5113] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5114] <... bpf resumed>)          = 0
[pid  5114] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5114] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5113] <... futex resumed>)        = 0
[pid  5113] exit_group(0 <unfinished ...>
[pid  5114] <... futex resumed>)        = ?
[pid  5113] <... exit_group resumed>)   = ?
[pid  5114] +++ exited with 0 +++
[pid  5113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./18/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./18")                           = 0
mkdir("./19", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5115
./strace-static-x86_64: Process 5115 attached
[pid  5115] set_robust_list(0x555563d546a0, 24) = 0
[pid  5115] chdir("./19")               = 0
[pid  5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5115] setpgid(0, 0)               = 0
[pid  5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5115] write(3, "1000", 4)         = 4
[pid  5115] close(3)                    = 0
[pid  5115] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5115] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5115] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5115] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5115] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5115] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5115] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5116 attached
 => {parent_tid=[5116]}, 88) = 5116
[pid  5116] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5116] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5116] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5115] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5115] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5116] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5116] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5115] <... futex resumed>)        = 0
[pid  5116] <... futex resumed>)        = 1
[pid  5115] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5115] <... futex resumed>)        = 0
[pid  5115] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] <... bpf resumed>)          = 4
[pid  5116] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5116] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5115] <... futex resumed>)        = 0
[pid  5115] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5116] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5116] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5116] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5115] <... futex resumed>)        = 1
[pid  5116] <... futex resumed>)        = 0
[pid  5116] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5115] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5115] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5116] <... futex resumed>)        = 0
[pid  5115] <... futex resumed>)        = 1
[pid  5116] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5115] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] <... bpf resumed>)          = 5
[pid  5116] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5116] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5115] <... futex resumed>)        = 0
[pid  5115] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5116] <... futex resumed>)        = 0
[pid  5115] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5116] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5116] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5115] <... futex resumed>)        = 0
[pid  5116] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5115] exit_group(0 <unfinished ...>
[pid  5116] <... futex resumed>)        = ?
[pid  5116] +++ exited with 0 +++
[pid  5115] <... exit_group resumed>)   = ?
[pid  5115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./19/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./19")                           = 0
mkdir("./20", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5117 attached
, child_tidptr=0x555563d54690) = 5117
[pid  5117] set_robust_list(0x555563d546a0, 24) = 0
[pid  5117] chdir("./20")               = 0
[pid  5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5117] setpgid(0, 0)               = 0
[pid  5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5117] write(3, "1000", 4)         = 4
[pid  5117] close(3)                    = 0
[pid  5117] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5117] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5117] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5117] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5117] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5117] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5118 attached
 <unfinished ...>
[pid  5118] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5117] <... clone3 resumed> => {parent_tid=[5118]}, 88) = 5118
[pid  5118] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5117] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5118] <... set_robust_list resumed>) = 0
[pid  5117] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5118] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5117] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5117] <... futex resumed>)        = 0
[pid  5118] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5117] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] <... bpf resumed>)          = 3
[pid  5118] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5117] <... futex resumed>)        = 0
[pid  5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5117] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5118] <... bpf resumed>)          = 4
[pid  5117] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5117] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5118] <... futex resumed>)        = 0
[pid  5117] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5118] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5118] <... futex resumed>)        = 0
[pid  5117] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5117] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5117] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] <... futex resumed>)        = 0
[pid  5117] <... futex resumed>)        = 1
[pid  5118] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5117] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] <... bpf resumed>)          = 5
[pid  5118] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5118] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5117] <... futex resumed>)        = 0
[pid  5117] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5118] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5117] <... futex resumed>)        = 0
[pid  5118] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5117] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5118] <... bpf resumed>)          = 0
[pid  5118] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5117] <... futex resumed>)        = 0
[pid  5118] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5117] exit_group(0 <unfinished ...>
[pid  5118] <... futex resumed>)        = ?
[pid  5117] <... exit_group resumed>)   = ?
[pid  5118] +++ exited with 0 +++
[pid  5117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./20/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./20")                           = 0
mkdir("./21", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5119 attached
, child_tidptr=0x555563d54690) = 5119
[pid  5119] set_robust_list(0x555563d546a0, 24) = 0
[pid  5119] chdir("./21")               = 0
[pid  5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5119] setpgid(0, 0)               = 0
[pid  5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5119] write(3, "1000", 4)         = 4
[pid  5119] close(3)                    = 0
[pid  5119] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5119] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5119] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5119] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5119] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5119] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5119] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5120 attached
 <unfinished ...>
[pid  5120] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5119] <... clone3 resumed> => {parent_tid=[5120]}, 88) = 5120
[pid  5120] <... rseq resumed>)         = 0
[pid  5119] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5120] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5119] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5120] <... set_robust_list resumed>) = 0
[pid  5119] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5119] <... futex resumed>)        = 0
[pid  5120] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5119] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5120] <... bpf resumed>)          = 3
[pid  5120] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5119] <... futex resumed>)        = 0
[pid  5120] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5119] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5119] <... futex resumed>)        = 0
[pid  5119] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5120] <... bpf resumed>)          = 4
[pid  5120] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5119] <... futex resumed>)        = 0
[pid  5120] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5119] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5120] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5120] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5120] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
[pid  5119] <... futex resumed>)        = 1
[pid  5120] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5119] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5119] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5120] <... futex resumed>)        = 0
[pid  5119] <... futex resumed>)        = 1
[pid  5120] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5119] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5120] <... bpf resumed>)          = 5
[pid  5120] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5119] <... futex resumed>)        = 0
[pid  5119] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5120] <... futex resumed>)        = 0
[pid  5119] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5120] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5120] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5119] <... futex resumed>)        = 0
[pid  5120] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5119] exit_group(0 <unfinished ...>
[pid  5120] <... futex resumed>)        = ?
[pid  5119] <... exit_group resumed>)   = ?
[pid  5120] +++ exited with 0 +++
[pid  5119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./21")                           = 0
mkdir("./22", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5121 attached
, child_tidptr=0x555563d54690) = 5121
[pid  5121] set_robust_list(0x555563d546a0, 24) = 0
[pid  5121] chdir("./22")               = 0
[pid  5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5121] setpgid(0, 0)               = 0
[pid  5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5121] write(3, "1000", 4)         = 4
[pid  5121] close(3)                    = 0
[pid  5121] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5121] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5121] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5121] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5121] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5121] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5122 attached
 <unfinished ...>
[pid  5122] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5121] <... clone3 resumed> => {parent_tid=[5122]}, 88) = 5122
[pid  5122] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5121] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5122] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5121] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5122] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5121] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5122] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5121] <... futex resumed>)        = 0
[pid  5122] <... bpf resumed>)          = 3
[pid  5122] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5122] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5121] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5121] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5122] <... futex resumed>)        = 0
[pid  5121] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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  5122] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5122] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5121] <... futex resumed>)        = 0
[pid  5121] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5122] <... futex resumed>)        = 0
[pid  5121] <... futex resumed>)        = 1
[pid  5122] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5121] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] <... bpf resumed>)          = 0
[pid  5122] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5121] <... futex resumed>)        = 0
[pid  5122] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5121] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5122] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5121] <... futex resumed>)        = 0
[pid  5122] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5121] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] <... bpf resumed>)          = 5
[pid  5122] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5121] <... futex resumed>)        = 0
[pid  5122] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5121] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5122] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5121] <... futex resumed>)        = 0
[pid  5122] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5121] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5122] <... bpf resumed>)          = 0
[pid  5122] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5121] <... futex resumed>)        = 0
[pid  5122] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5121] exit_group(0 <unfinished ...>
[pid  5122] <... futex resumed>)        = ?
[pid  5121] <... exit_group resumed>)   = ?
[pid  5122] +++ exited with 0 +++
[pid  5121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./22")                           = 0
mkdir("./23", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5123 attached
, child_tidptr=0x555563d54690) = 5123
[pid  5123] set_robust_list(0x555563d546a0, 24) = 0
[pid  5123] chdir("./23")               = 0
[pid  5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5123] setpgid(0, 0)               = 0
[pid  5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5123] write(3, "1000", 4)         = 4
[pid  5123] close(3)                    = 0
[pid  5123] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5123] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5123] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5123] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5123] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5124 attached
 => {parent_tid=[5124]}, 88) = 5124
[pid  5124] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5124] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5124] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5123] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5124] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5123] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5124] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5123] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5123] <... futex resumed>)        = 0
[pid  5124] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5123] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] <... bpf resumed>)          = 3
[pid  5124] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5124] <... futex resumed>)        = 1
[pid  5123] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5124] <... bpf resumed>)          = 4
[pid  5123] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5123] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5124] <... futex resumed>)        = 0
[pid  5123] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5123] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5124] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5124] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5123] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] <... futex resumed>)        = 0
[pid  5123] <... futex resumed>)        = 1
[pid  5124] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5123] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] <... bpf resumed>)          = 5
[pid  5124] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5124] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5123] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5124] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5124] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5123] <... futex resumed>)        = 0
[pid  5123] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5124] <... bpf resumed>)          = 0
[pid  5124] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5123] <... futex resumed>)        = 0
[pid  5124] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5123] exit_group(0)               = ?
[pid  5124] <... futex resumed>)        = ?
[pid  5124] +++ exited with 0 +++
[pid  5123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./23/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./23")                           = 0
mkdir("./24", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5125
./strace-static-x86_64: Process 5125 attached
[pid  5125] set_robust_list(0x555563d546a0, 24) = 0
[pid  5125] chdir("./24")               = 0
[pid  5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5125] setpgid(0, 0)               = 0
[pid  5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5125] write(3, "1000", 4)         = 4
[pid  5125] close(3)                    = 0
[pid  5125] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5125] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5125] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5125] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5125] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5125] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5125] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5126 attached
 <unfinished ...>
[pid  5126] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5126] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5125] <... clone3 resumed> => {parent_tid=[5126]}, 88) = 5126
[pid  5126] <... set_robust_list resumed>) = 0
[pid  5125] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5126] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5125] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5126] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5126] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5125] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5125] <... futex resumed>)        = 1
[pid  5126] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5125] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5126] <... bpf resumed>)          = 3
[pid  5126] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5125] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5126] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5125] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = 0
[pid  5125] <... futex resumed>)        = 1
[pid  5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5125] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5126] <... bpf resumed>)          = 4
[pid  5126] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5125] <... futex resumed>)        = 0
[pid  5126] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5125] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5125] <... futex resumed>)        = 0
[pid  5126] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5125] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5126] <... bpf resumed>)          = 0
[pid  5126] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5125] <... futex resumed>)        = 0
[pid  5126] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5125] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5126] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5125] <... futex resumed>)        = 0
[pid  5125] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5126] <... bpf resumed>)          = 5
[pid  5126] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5125] <... futex resumed>)        = 0
[pid  5126] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5125] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5126] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5125] <... futex resumed>)        = 0
[pid  5126] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5125] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5126] <... bpf resumed>)          = 0
[pid  5126] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5125] <... futex resumed>)        = 0
[pid  5126] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5125] exit_group(0 <unfinished ...>
[pid  5126] <... futex resumed>)        = ?
[pid  5125] <... exit_group resumed>)   = ?
[pid  5126] +++ exited with 0 +++
[pid  5125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./24/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./24")                           = 0
mkdir("./25", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5127 attached
, child_tidptr=0x555563d54690) = 5127
[pid  5127] set_robust_list(0x555563d546a0, 24) = 0
[pid  5127] chdir("./25")               = 0
[pid  5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5127] setpgid(0, 0)               = 0
[pid  5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5127] write(3, "1000", 4)         = 4
[pid  5127] close(3)                    = 0
[pid  5127] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5127] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5127] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5127] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5127] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5127] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5127] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5128 attached
 <unfinished ...>
[pid  5128] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5127] <... clone3 resumed> => {parent_tid=[5128]}, 88) = 5128
[pid  5128] <... rseq resumed>)         = 0
[pid  5127] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5128] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5127] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5128] <... set_robust_list resumed>) = 0
[pid  5127] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5127] <... futex resumed>)        = 0
[pid  5128] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5127] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5128] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5127] <... futex resumed>)        = 0
[pid  5128] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5127] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5127] <... futex resumed>)        = 0
[pid  5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5127] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] <... bpf resumed>)          = 4
[pid  5128] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] <... futex resumed>)        = 0
[pid  5127] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5127] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] <... futex resumed>)        = 1
[pid  5128] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5128] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5127] <... futex resumed>)        = 0
[pid  5128] <... futex resumed>)        = 1
[pid  5127] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5127] <... futex resumed>)        = 0
[pid  5127] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] <... bpf resumed>)          = 5
[pid  5128] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5127] <... futex resumed>)        = 0
[pid  5128] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5127] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5128] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5127] <... futex resumed>)        = 0
[pid  5128] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5127] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5128] <... bpf resumed>)          = 0
[pid  5128] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5127] <... futex resumed>)        = 0
[pid  5128] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5127] exit_group(0 <unfinished ...>
[pid  5128] <... futex resumed>)        = ?
[pid  5127] <... exit_group resumed>)   = ?
[pid  5128] +++ exited with 0 +++
[pid  5127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./25/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./25")                           = 0
mkdir("./26", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached
, child_tidptr=0x555563d54690) = 5129
[pid  5129] set_robust_list(0x555563d546a0, 24) = 0
[pid  5129] chdir("./26")               = 0
[pid  5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5129] setpgid(0, 0)               = 0
[pid  5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5129] write(3, "1000", 4)         = 4
[pid  5129] close(3)                    = 0
[pid  5129] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5129] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5129] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5129] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5129] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5129] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5129] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5130 attached
 <unfinished ...>
[pid  5130] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5129] <... clone3 resumed> => {parent_tid=[5130]}, 88) = 5130
[pid  5130] <... rseq resumed>)         = 0
[pid  5130] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5129] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5130] <... set_robust_list resumed>) = 0
[pid  5129] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5130] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5129] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5130] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5130] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5129] <... futex resumed>)        = 0
[pid  5129] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] <... bpf resumed>)          = 3
[pid  5130] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5130] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5129] <... futex resumed>)        = 0
[pid  5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5129] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] <... bpf resumed>)          = 4
[pid  5130] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5130] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5129] <... futex resumed>)        = 0
[pid  5130] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5129] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] <... bpf resumed>)          = 0
[pid  5130] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5129] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5129] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] <... bpf resumed>)          = 5
[pid  5130] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5130] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] <... futex resumed>)        = 0
[pid  5129] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5130] <... futex resumed>)        = 0
[pid  5129] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5130] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5130] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5129] <... futex resumed>)        = 0
[pid  5130] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5129] exit_group(0 <unfinished ...>
[pid  5130] <... futex resumed>)        = ?
[pid  5129] <... exit_group resumed>)   = ?
[pid  5130] +++ exited with 0 +++
[pid  5129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./26/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./26")                           = 0
mkdir("./27", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5131 attached
 <unfinished ...>
[pid  5131] set_robust_list(0x555563d546a0, 24 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x555563d54690) = 5131
[pid  5131] <... set_robust_list resumed>) = 0
[pid  5131] chdir("./27")               = 0
[pid  5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5131] setpgid(0, 0)               = 0
[pid  5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5131] write(3, "1000", 4)         = 4
[pid  5131] close(3)                    = 0
[pid  5131] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5131] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5131] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5131] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5131] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5131] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5131] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5132 attached
 => {parent_tid=[5132]}, 88) = 5132
[pid  5132] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5132] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5132] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5131] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5132] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5131] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5132] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5131] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5132] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5131] <... futex resumed>)        = 0
[pid  5132] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5131] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... bpf resumed>)          = 3
[pid  5132] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5131] <... futex resumed>)        = 0
[pid  5132] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5131] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5132] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5131] <... futex resumed>)        = 0
[pid  5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5131] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... bpf resumed>)          = 4
[pid  5132] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5131] <... futex resumed>)        = 0
[pid  5132] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5131] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5132] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5131] <... futex resumed>)        = 0
[pid  5132] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5131] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... bpf resumed>)          = 0
[pid  5132] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5131] <... futex resumed>)        = 0
[pid  5131] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5132] <... futex resumed>)        = 0
[pid  5131] <... futex resumed>)        = 1
[pid  5132] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5131] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... bpf resumed>)          = 5
[pid  5132] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5131] <... futex resumed>)        = 0
[pid  5132] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5131] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5132] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5131] <... futex resumed>)        = 0
[pid  5132] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5131] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5132] <... bpf resumed>)          = 0
[pid  5132] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5132] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5131] <... futex resumed>)        = 0
[pid  5131] exit_group(0 <unfinished ...>
[pid  5132] <... futex resumed>)        = ?
[pid  5131] <... exit_group resumed>)   = ?
[pid  5132] +++ exited with 0 +++
[pid  5131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./27/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./27")                           = 0
mkdir("./28", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5133 attached
, child_tidptr=0x555563d54690) = 5133
[pid  5133] set_robust_list(0x555563d546a0, 24) = 0
[pid  5133] chdir("./28")               = 0
[pid  5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5133] setpgid(0, 0)               = 0
[pid  5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5133] write(3, "1000", 4)         = 4
[pid  5133] close(3)                    = 0
[pid  5133] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5133] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5133] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5133] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5133] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5133] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5133] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5133] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5134 attached
 <unfinished ...>
[pid  5134] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5133] <... clone3 resumed> => {parent_tid=[5134]}, 88) = 5134
[pid  5134] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5133] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5134] <... set_robust_list resumed>) = 0
[pid  5133] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5133] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5134] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5133] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5134] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5134] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5133] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] <... futex resumed>)        = 0
[pid  5133] <... futex resumed>)        = 1
[pid  5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5133] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] <... bpf resumed>)          = 4
[pid  5134] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5134] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5133] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] <... futex resumed>)        = 0
[pid  5133] <... futex resumed>)        = 1
[pid  5134] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5133] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] <... bpf resumed>)          = 0
[pid  5134] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5133] <... futex resumed>)        = 0
[pid  5134] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5133] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5133] <... futex resumed>)        = 0
[pid  5134] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5133] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] <... bpf resumed>)          = 5
[pid  5134] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5134] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5134] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5133] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5134] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5133] <... futex resumed>)        = 0
[pid  5133] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5134] <... bpf resumed>)          = 0
[pid  5134] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5133] <... futex resumed>)        = 0
[pid  5134] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5133] exit_group(0 <unfinished ...>
[pid  5134] <... futex resumed>)        = ?
[pid  5134] +++ exited with 0 +++
[pid  5133] <... exit_group resumed>)   = ?
[pid  5133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./28/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./28")                           = 0
mkdir("./29", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached
 <unfinished ...>
[pid  5135] set_robust_list(0x555563d546a0, 24) = 0
[pid  5135] chdir("./29" <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x555563d54690) = 5135
[pid  5135] <... chdir resumed>)        = 0
[pid  5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5135] setpgid(0, 0)               = 0
[pid  5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5135] write(3, "1000", 4)         = 4
[pid  5135] close(3)                    = 0
[pid  5135] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5135] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5135] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5135] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5135] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5135] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5136 attached
 <unfinished ...>
[pid  5136] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5135] <... clone3 resumed> => {parent_tid=[5136]}, 88) = 5136
[pid  5136] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5135] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5136] <... set_robust_list resumed>) = 0
[pid  5136] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5135] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5136] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5135] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5136] <... bpf resumed>)          = 3
[pid  5135] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5135] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5136] <... futex resumed>)        = 0
[pid  5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5135] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] <... bpf resumed>)          = 4
[pid  5136] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5136] <... futex resumed>)        = 0
[pid  5135] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5135] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] <... futex resumed>)        = 0
[pid  5135] <... futex resumed>)        = 1
[pid  5136] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5135] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... bpf resumed>)          = 0
[pid  5136] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5136] <... futex resumed>)        = 0
[pid  5135] <... futex resumed>)        = 1
[pid  5136] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5135] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... bpf resumed>)          = 5
[pid  5136] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5135] <... futex resumed>)        = 0
[pid  5136] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5135] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5135] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5136] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5136] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5136] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5135] <... futex resumed>)        = 0
[pid  5136] <... futex resumed>)        = 1
[pid  5135] exit_group(0 <unfinished ...>
[pid  5136] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid  5135] <... exit_group resumed>)   = ?
[pid  5136] +++ exited with 0 +++
[pid  5135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./29/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./29")                           = 0
mkdir("./30", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5137 attached
, child_tidptr=0x555563d54690) = 5137
[pid  5137] set_robust_list(0x555563d546a0, 24) = 0
[pid  5137] chdir("./30")               = 0
[pid  5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5137] setpgid(0, 0)               = 0
[pid  5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5137] write(3, "1000", 4)         = 4
[pid  5137] close(3)                    = 0
[pid  5137] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5137] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5137] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5137] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5137] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5137] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5137] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5138 attached
 => {parent_tid=[5138]}, 88) = 5138
[pid  5138] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5137] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5138] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5137] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5138] <... set_robust_list resumed>) = 0
[pid  5137] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5137] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5138] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5138] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5137] <... futex resumed>)        = 0
[pid  5138] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5137] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5137] <... futex resumed>)        = 0
[pid  5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5137] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5138] <... bpf resumed>)          = 4
[pid  5138] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5138] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5137] <... futex resumed>)        = 0
[pid  5137] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5137] <... futex resumed>)        = 1
[pid  5138] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5137] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5138] <... bpf resumed>)          = 0
[pid  5138] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5137] <... futex resumed>)        = 0
[pid  5138] <... futex resumed>)        = 1
[pid  5137] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5137] <... futex resumed>)        = 0
[pid  5137] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5138] <... bpf resumed>)          = 5
[pid  5138] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5138] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5137] <... futex resumed>)        = 0
[pid  5137] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5138] <... futex resumed>)        = 0
[pid  5137] <... futex resumed>)        = 1
[pid  5138] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5137] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5138] <... bpf resumed>)          = 0
[pid  5138] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5137] <... futex resumed>)        = 0
[pid  5138] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5137] exit_group(0 <unfinished ...>
[pid  5138] <... futex resumed>)        = ?
[pid  5137] <... exit_group resumed>)   = ?
[pid  5138] +++ exited with 0 +++
[pid  5137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./30/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./30")                           = 0
mkdir("./31", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5139 attached
, child_tidptr=0x555563d54690) = 5139
[pid  5139] set_robust_list(0x555563d546a0, 24) = 0
[pid  5139] chdir("./31")               = 0
[pid  5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5139] setpgid(0, 0)               = 0
[pid  5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5139] write(3, "1000", 4)         = 4
[pid  5139] close(3)                    = 0
[pid  5139] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5139] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5139] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5139] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5139] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5139] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5139] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5140 attached
 <unfinished ...>
[pid  5140] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5139] <... clone3 resumed> => {parent_tid=[5140]}, 88) = 5140
[pid  5140] <... rseq resumed>)         = 0
[pid  5139] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5140] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5139] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5140] <... set_robust_list resumed>) = 0
[pid  5139] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5139] <... futex resumed>)        = 0
[pid  5140] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5139] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5140] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5139] <... futex resumed>)        = 0
[pid  5140] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5139] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5139] <... futex resumed>)        = 0
[pid  5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5139] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] <... bpf resumed>)          = 4
[pid  5140] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5139] <... futex resumed>)        = 0
[pid  5140] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5139] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... bpf resumed>)          = 0
[pid  5140] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5139] <... futex resumed>)        = 0
[pid  5140] <... futex resumed>)        = 0
[pid  5139] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5139] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5139] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... futex resumed>)        = 0
[pid  5139] <... futex resumed>)        = 1
[pid  5140] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5139] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] <... bpf resumed>)          = 5
[pid  5140] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5140] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5139] <... futex resumed>)        = 0
[pid  5139] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5140] <... futex resumed>)        = 0
[pid  5139] <... futex resumed>)        = 1
[pid  5140] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5139] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5140] <... bpf resumed>)          = 0
[pid  5140] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5139] <... futex resumed>)        = 0
[pid  5140] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5139] exit_group(0 <unfinished ...>
[pid  5140] <... futex resumed>)        = ?
[pid  5139] <... exit_group resumed>)   = ?
[pid  5140] +++ exited with 0 +++
[pid  5139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./31/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./31")                           = 0
mkdir("./32", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5141 attached
 <unfinished ...>
[pid  5141] set_robust_list(0x555563d546a0, 24) = 0
[pid  5076] <... clone resumed>, child_tidptr=0x555563d54690) = 5141
[pid  5141] chdir("./32")               = 0
[pid  5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5141] setpgid(0, 0)               = 0
[pid  5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5141] write(3, "1000", 4)         = 4
[pid  5141] close(3)                    = 0
[pid  5141] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5141] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5141] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5141] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5141] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5142 attached
 <unfinished ...>
[pid  5142] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5141] <... clone3 resumed> => {parent_tid=[5142]}, 88) = 5142
[pid  5142] <... rseq resumed>)         = 0
[pid  5141] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5142] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5141] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5142] <... set_robust_list resumed>) = 0
[pid  5142] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5141] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5141] <... futex resumed>)        = 0
[pid  5142] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5141] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] <... bpf resumed>)          = 3
[pid  5142] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5142] <... futex resumed>)        = 1
[pid  5141] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5141] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] <... bpf resumed>)          = 4
[pid  5142] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5142] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5141] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5141] <... futex resumed>)        = 0
[pid  5142] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5141] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5141] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5142] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5141] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5141] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5142] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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) = 5
[pid  5142] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5141] <... futex resumed>)        = 0
[pid  5142] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5141] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5142] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5142] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5141] <... futex resumed>)        = 0
[pid  5142] <... bpf resumed>)          = 0
[pid  5141] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5142] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5141] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5142] <... futex resumed>)        = 0
[pid  5141] exit_group(0 <unfinished ...>
[pid  5142] ???()                       = ?
[pid  5141] <... exit_group resumed>)   = ?
[pid  5142] +++ exited with 0 +++
[pid  5141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./32/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./32")                           = 0
mkdir("./33", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5143 attached
, child_tidptr=0x555563d54690) = 5143
[pid  5143] set_robust_list(0x555563d546a0, 24) = 0
[pid  5143] chdir("./33")               = 0
[pid  5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5143] setpgid(0, 0)               = 0
[pid  5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5143] write(3, "1000", 4)         = 4
[pid  5143] close(3)                    = 0
[pid  5143] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5143] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5143] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5143] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5143] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5143] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5143] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5144 attached
 <unfinished ...>
[pid  5144] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5143] <... clone3 resumed> => {parent_tid=[5144]}, 88) = 5144
[pid  5144] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5143] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5144] <... set_robust_list resumed>) = 0
[pid  5144] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5143] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5144] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5143] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5143] <... futex resumed>)        = 0
[pid  5143] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5144] <... bpf resumed>)          = 3
[pid  5144] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5143] <... futex resumed>)        = 0
[pid  5144] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5143] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5143] <... futex resumed>)        = 0
[pid  5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5143] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5144] <... bpf resumed>)          = 4
[pid  5144] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5144] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5143] <... futex resumed>)        = 0
[pid  5143] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5143] <... futex resumed>)        = 1
[pid  5144] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5143] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5144] <... bpf resumed>)          = 0
[pid  5144] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5143] <... futex resumed>)        = 0
[pid  5144] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5143] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5143] <... futex resumed>)        = 0
[pid  5144] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5143] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5144] <... bpf resumed>)          = 5
[pid  5144] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5143] <... futex resumed>)        = 0
[pid  5144] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5143] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5144] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5143] <... futex resumed>)        = 0
[pid  5144] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5143] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5144] <... futex resumed>)        = 0
[pid  5143] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5143] exit_group(0 <unfinished ...>
[pid  5144] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5143] <... exit_group resumed>)   = ?
[pid  5144] <... futex resumed>)        = ?
[pid  5144] +++ exited with 0 +++
[pid  5143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./33/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./33")                           = 0
mkdir("./34", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5145 attached
, child_tidptr=0x555563d54690) = 5145
[pid  5145] set_robust_list(0x555563d546a0, 24) = 0
[pid  5145] chdir("./34")               = 0
[pid  5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5145] setpgid(0, 0)               = 0
[pid  5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5145] write(3, "1000", 4)         = 4
[pid  5145] close(3)                    = 0
[pid  5145] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5145] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5145] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5145] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5145] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5145] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5145] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5146 attached
 <unfinished ...>
[pid  5146] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5146] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5146] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5145] <... clone3 resumed> => {parent_tid=[5146]}, 88) = 5146
[pid  5146] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5145] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5146] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5145] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5145] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5146] <... futex resumed>)        = 0
[pid  5145] <... futex resumed>)        = 1
[pid  5146] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5145] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] <... bpf resumed>)          = 3
[pid  5146] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5145] <... futex resumed>)        = 0
[pid  5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5145] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5145] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] <... bpf resumed>)          = 4
[pid  5146] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5145] <... futex resumed>)        = 0
[pid  5146] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5145] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5146] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5145] <... futex resumed>)        = 0
[pid  5146] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5145] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] <... bpf resumed>)          = 0
[pid  5146] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5145] <... futex resumed>)        = 0
[pid  5146] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5145] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5146] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5145] <... futex resumed>)        = 0
[pid  5146] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5145] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] <... bpf resumed>)          = 5
[pid  5146] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5145] <... futex resumed>)        = 0
[pid  5146] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5145] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5146] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5145] <... futex resumed>)        = 0
[pid  5146] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5145] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5146] <... bpf resumed>)          = 0
[pid  5146] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5145] <... futex resumed>)        = 0
[pid  5146] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5145] exit_group(0 <unfinished ...>
[pid  5146] <... futex resumed>)        = ?
[pid  5145] <... exit_group resumed>)   = ?
[pid  5146] +++ exited with 0 +++
[pid  5145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./34/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./34")                           = 0
mkdir("./35", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5147 attached
, child_tidptr=0x555563d54690) = 5147
[pid  5147] set_robust_list(0x555563d546a0, 24) = 0
[pid  5147] chdir("./35")               = 0
[pid  5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5147] setpgid(0, 0)               = 0
[pid  5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5147] write(3, "1000", 4)         = 4
[pid  5147] close(3)                    = 0
[pid  5147] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5147] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5147] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5147] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5147] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5148 attached
 <unfinished ...>
[pid  5148] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5147] <... clone3 resumed> => {parent_tid=[5148]}, 88) = 5148
[pid  5148] <... rseq resumed>)         = 0
[pid  5147] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5148] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5147] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5148] <... set_robust_list resumed>) = 0
[pid  5147] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5147] <... futex resumed>)        = 0
[pid  5148] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5147] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] <... bpf resumed>)          = 3
[pid  5148] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5148] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5147] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] <... futex resumed>)        = 0
[pid  5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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  5148] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] <... futex resumed>)        = 0
[pid  5148] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5147] <... futex resumed>)        = 0
[pid  5148] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5147] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] <... bpf resumed>)          = 0
[pid  5148] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] <... futex resumed>)        = 0
[pid  5148] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5147] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5147] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5148] <... bpf resumed>)          = 5
[pid  5148] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5147] <... futex resumed>)        = 0
[pid  5148] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5148] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5147] <... futex resumed>)        = 0
[pid  5148] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5148] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5147] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5148] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5147] exit_group(0 <unfinished ...>
[pid  5148] <... futex resumed>)        = ?
[pid  5148] +++ exited with 0 +++
[pid  5147] <... exit_group resumed>)   = ?
[pid  5147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./35/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./35")                           = 0
mkdir("./36", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5149 attached
, child_tidptr=0x555563d54690) = 5149
[pid  5149] set_robust_list(0x555563d546a0, 24) = 0
[pid  5149] chdir("./36")               = 0
[pid  5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5149] setpgid(0, 0)               = 0
[pid  5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5149] write(3, "1000", 4)         = 4
[pid  5149] close(3)                    = 0
[pid  5149] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5149] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5149] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5149] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5149] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5149] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5149] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5151 attached
 <unfinished ...>
[pid  5151] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5149] <... clone3 resumed> => {parent_tid=[5151]}, 88) = 5151
[pid  5151] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5149] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5151] <... set_robust_list resumed>) = 0
[pid  5149] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5149] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5151] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5149] <... futex resumed>)        = 0
[pid  5149] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5151] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5149] <... futex resumed>)        = 0
[pid  5149] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5149] <... futex resumed>)        = 0
[pid  5151] <... bpf resumed>)          = 4
[pid  5149] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5151] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5149] <... futex resumed>)        = 0
[pid  5149] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5151] <... futex resumed>)        = 1
[pid  5149] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5151] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5151] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5149] <... futex resumed>)        = 0
[pid  5151] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5149] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5151] <... bpf resumed>)          = 5
[pid  5149] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5151] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5149] <... futex resumed>)        = 0
[pid  5149] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5151] <... futex resumed>)        = 1
[pid  5149] <... futex resumed>)        = 0
[pid  5149] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5151] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5151] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5149] <... futex resumed>)        = 0
[pid  5149] exit_group(0)               = ?
[pid  5151] +++ exited with 0 +++
[pid  5149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./36/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./36")                           = 0
mkdir("./37", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5152 attached
 <unfinished ...>
[pid  5152] set_robust_list(0x555563d546a0, 24) = 0
[pid  5152] chdir("./37")               = 0
[pid  5152] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x555563d54690) = 5152
[pid  5152] <... prctl resumed>)        = 0
[pid  5152] setpgid(0, 0)               = 0
[pid  5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5152] write(3, "1000", 4)         = 4
[pid  5152] close(3)                    = 0
[pid  5152] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5152] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5152] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5152] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5152] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5152] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5152] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5153 attached
 <unfinished ...>
[pid  5153] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5152] <... clone3 resumed> => {parent_tid=[5153]}, 88) = 5153
[pid  5153] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5152] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5153] <... set_robust_list resumed>) = 0
[pid  5152] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5153] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5152] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5153] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5152] <... futex resumed>)        = 0
[pid  5153] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5152] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5153] <... bpf resumed>)          = 3
[pid  5153] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5152] <... futex resumed>)        = 0
[pid  5153] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5152] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5153] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5152] <... futex resumed>)        = 0
[pid  5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5152] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5153] <... bpf resumed>)          = 4
[pid  5153] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5152] <... futex resumed>)        = 0
[pid  5153] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5152] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5153] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5152] <... futex resumed>)        = 0
[pid  5153] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5152] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5153] <... bpf resumed>)          = 0
[pid  5153] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5152] <... futex resumed>)        = 0
[pid  5153] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5152] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5153] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5152] <... futex resumed>)        = 0
[pid  5153] <... bpf resumed>)          = 5
[pid  5152] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5153] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5152] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5152] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5153] <... futex resumed>)        = 0
[pid  5153] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5152] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5153] <... bpf resumed>)          = 0
[pid  5153] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5152] <... futex resumed>)        = 0
[pid  5153] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5152] exit_group(0 <unfinished ...>
[pid  5153] <... futex resumed>)        = ?
[pid  5152] <... exit_group resumed>)   = ?
[pid  5153] +++ exited with 0 +++
[pid  5152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./37/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./37")                           = 0
mkdir("./38", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5154 attached
, child_tidptr=0x555563d54690) = 5154
[pid  5154] set_robust_list(0x555563d546a0, 24) = 0
[pid  5154] chdir("./38")               = 0
[pid  5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5154] setpgid(0, 0)               = 0
[pid  5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5154] write(3, "1000", 4)         = 4
[pid  5154] close(3)                    = 0
[pid  5154] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5154] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5154] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5154] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5154] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5154] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5154] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5155 attached
 => {parent_tid=[5155]}, 88) = 5155
[pid  5155] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5155] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5155] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5154] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5155] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5154] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5155] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5154] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5155] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5154] <... futex resumed>)        = 0
[pid  5155] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5154] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5155] <... bpf resumed>)          = 3
[pid  5155] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5155] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5154] <... futex resumed>)        = 0
[pid  5154] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5155] <... futex resumed>)        = 0
[pid  5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5154] <... futex resumed>)        = 1
[pid  5154] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5155] <... bpf resumed>)          = 4
[pid  5155] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5155] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5154] <... futex resumed>)        = 0
[pid  5154] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5155] <... futex resumed>)        = 0
[pid  5154] <... futex resumed>)        = 1
[pid  5155] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5154] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5155] <... bpf resumed>)          = 0
[pid  5155] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5154] <... futex resumed>)        = 0
[pid  5155] <... futex resumed>)        = 1
[pid  5154] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5155] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5154] <... futex resumed>)        = 0
[pid  5154] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5155] <... bpf resumed>)          = 5
[pid  5155] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5154] <... futex resumed>)        = 0
[pid  5155] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5154] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5155] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5155] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5154] <... futex resumed>)        = 0
[pid  5155] <... bpf resumed>)          = 0
[pid  5154] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5155] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5154] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5155] <... futex resumed>)        = 0
[pid  5154] exit_group(0)               = ?
[pid  5155] +++ exited with 0 +++
[pid  5154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./38/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./38")                           = 0
mkdir("./39", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5156 attached
, child_tidptr=0x555563d54690) = 5156
[pid  5156] set_robust_list(0x555563d546a0, 24) = 0
[pid  5156] chdir("./39")               = 0
[pid  5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5156] setpgid(0, 0)               = 0
[pid  5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5156] write(3, "1000", 4)         = 4
[pid  5156] close(3)                    = 0
[pid  5156] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5156] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5156] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5156] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5156] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5157 attached
 <unfinished ...>
[pid  5157] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5156] <... clone3 resumed> => {parent_tid=[5157]}, 88) = 5157
[pid  5157] <... rseq resumed>)         = 0
[pid  5156] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5157] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5156] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5157] <... set_robust_list resumed>) = 0
[pid  5156] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5157] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5156] <... futex resumed>)        = 0
[pid  5157] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5156] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5157] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5157] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5156] <... futex resumed>)        = 0
[pid  5157] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5156] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5157] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5156] <... futex resumed>)        = 0
[pid  5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5156] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5157] <... bpf resumed>)          = 4
[pid  5157] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5156] <... futex resumed>)        = 0
[pid  5157] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5156] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5157] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5156] <... futex resumed>)        = 0
[pid  5157] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5156] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5157] <... bpf resumed>)          = 0
[pid  5157] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5157] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5156] <... futex resumed>)        = 0
[pid  5156] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5157] <... futex resumed>)        = 0
[pid  5156] <... futex resumed>)        = 1
[pid  5157] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5156] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5157] <... bpf resumed>)          = 5
[pid  5157] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5157] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5156] <... futex resumed>)        = 0
[pid  5156] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5157] <... futex resumed>)        = 0
[pid  5157] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5156] <... futex resumed>)        = 1
[pid  5157] <... bpf resumed>)          = 0
[pid  5156] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5157] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5156] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5157] <... futex resumed>)        = 0
[pid  5156] exit_group(0)               = ?
[pid  5157] +++ exited with 0 +++
[pid  5156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./39/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./39")                           = 0
mkdir("./40", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5158 attached
, child_tidptr=0x555563d54690) = 5158
[pid  5158] set_robust_list(0x555563d546a0, 24) = 0
[pid  5158] chdir("./40")               = 0
[pid  5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5158] setpgid(0, 0)               = 0
[pid  5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5158] write(3, "1000", 4)         = 4
[pid  5158] close(3)                    = 0
[pid  5158] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5158] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5158] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5158] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5158] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5158] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5158] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5159 attached
 => {parent_tid=[5159]}, 88) = 5159
[pid  5159] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5158] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5159] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5158] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5159] <... set_robust_list resumed>) = 0
[pid  5159] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5158] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5159] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5158] <... futex resumed>)        = 0
[pid  5159] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5158] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5159] <... bpf resumed>)          = 3
[pid  5159] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5159] <... futex resumed>)        = 1
[pid  5158] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5159] <... bpf resumed>)          = 4
[pid  5158] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5159] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5159] <... futex resumed>)        = 1
[pid  5158] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5159] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5159] <... bpf resumed>)          = 0
[pid  5158] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5159] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5158] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5159] <... futex resumed>)        = 1
[pid  5158] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5159] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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) = 5
[pid  5159] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5159] <... futex resumed>)        = 1
[pid  5158] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5159] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5159] <... bpf resumed>)          = 0
[pid  5158] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5159] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5158] <... futex resumed>)        = 0
[pid  5159] <... futex resumed>)        = 1
[pid  5158] exit_group(0)               = ?
[pid  5159] +++ exited with 0 +++
[pid  5158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./40/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./40")                           = 0
mkdir("./41", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5160 attached
, child_tidptr=0x555563d54690) = 5160
[pid  5160] set_robust_list(0x555563d546a0, 24) = 0
[pid  5160] chdir("./41")               = 0
[pid  5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5160] setpgid(0, 0)               = 0
[pid  5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5160] write(3, "1000", 4)         = 4
[pid  5160] close(3)                    = 0
[pid  5160] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5160] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5160] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5160] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5160] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5160] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5160] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5161 attached
 => {parent_tid=[5161]}, 88) = 5161
[pid  5161] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5160] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5161] <... rseq resumed>)         = 0
[pid  5161] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5160] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5161] <... set_robust_list resumed>) = 0
[pid  5160] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5161] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5160] <... futex resumed>)        = 0
[pid  5161] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5160] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5161] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5161] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5160] <... futex resumed>)        = 0
[pid  5161] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5160] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5161] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5160] <... futex resumed>)        = 0
[pid  5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5160] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5161] <... bpf resumed>)          = 4
[pid  5161] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5160] <... futex resumed>)        = 0
[pid  5161] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5160] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5161] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5160] <... futex resumed>)        = 0
[pid  5161] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5160] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5161] <... bpf resumed>)          = 0
[pid  5161] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5160] <... futex resumed>)        = 0
[pid  5161] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5160] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5161] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5160] <... futex resumed>)        = 0
[pid  5161] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5160] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5161] <... bpf resumed>)          = 5
[pid  5161] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5160] <... futex resumed>)        = 0
[pid  5160] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5160] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5161] <... futex resumed>)        = 1
[pid  5161] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5161] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5160] <... futex resumed>)        = 0
[pid  5161] <... futex resumed>)        = 1
[pid  5160] exit_group(0 <unfinished ...>
[pid  5161] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid  5160] <... exit_group resumed>)   = ?
[pid  5161] +++ exited with 0 +++
[pid  5160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./41/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./41")                           = 0
mkdir("./42", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5162 attached
, child_tidptr=0x555563d54690) = 5162
[pid  5162] set_robust_list(0x555563d546a0, 24) = 0
[pid  5162] chdir("./42")               = 0
[pid  5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5162] setpgid(0, 0)               = 0
[pid  5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5162] write(3, "1000", 4)         = 4
[pid  5162] close(3)                    = 0
[pid  5162] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5162] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5162] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5162] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5162] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5162] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5162] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5162] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5163 attached
 <unfinished ...>
[pid  5163] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5162] <... clone3 resumed> => {parent_tid=[5163]}, 88) = 5163
[pid  5163] <... rseq resumed>)         = 0
[pid  5162] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5163] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5162] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5163] <... set_robust_list resumed>) = 0
[pid  5162] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5162] <... futex resumed>)        = 0
[pid  5163] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5162] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5163] <... bpf resumed>)          = 3
[pid  5163] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5162] <... futex resumed>)        = 0
[pid  5162] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5162] <... futex resumed>)        = 0
[pid  5162] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5163] <... bpf resumed>)          = 4
[pid  5163] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5162] <... futex resumed>)        = 0
[pid  5163] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5162] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] <... bpf resumed>)          = 0
[pid  5163] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5162] <... futex resumed>)        = 0
[pid  5163] <... futex resumed>)        = 0
[pid  5162] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5163] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5162] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5162] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] <... futex resumed>)        = 0
[pid  5162] <... futex resumed>)        = 1
[pid  5163] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5162] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5163] <... bpf resumed>)          = 5
[pid  5163] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5162] <... futex resumed>)        = 0
[pid  5163] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5162] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5163] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5162] <... futex resumed>)        = 0
[pid  5163] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5162] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5163] <... bpf resumed>)          = 0
[pid  5163] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5162] <... futex resumed>)        = 0
[pid  5163] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5162] exit_group(0 <unfinished ...>
[pid  5163] <... futex resumed>)        = ?
[pid  5163] +++ exited with 0 +++
[pid  5162] <... exit_group resumed>)   = ?
[pid  5162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./42/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./42")                           = 0
mkdir("./43", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5164 attached
, child_tidptr=0x555563d54690) = 5164
[pid  5164] set_robust_list(0x555563d546a0, 24) = 0
[pid  5164] chdir("./43")               = 0
[pid  5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5164] setpgid(0, 0)               = 0
[pid  5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5164] write(3, "1000", 4)         = 4
[pid  5164] close(3)                    = 0
[pid  5164] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5164] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5164] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5164] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5164] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5165 attached
 <unfinished ...>
[pid  5165] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5164] <... clone3 resumed> => {parent_tid=[5165]}, 88) = 5165
[pid  5165] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5164] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5165] <... set_robust_list resumed>) = 0
[pid  5164] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5165] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5164] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5165] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5165] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5164] <... futex resumed>)        = 0
[pid  5164] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5165] <... bpf resumed>)          = 3
[pid  5165] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5164] <... futex resumed>)        = 0
[pid  5165] <... futex resumed>)        = 1
[pid  5164] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5164] <... futex resumed>)        = 0
[pid  5164] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5165] <... bpf resumed>)          = 4
[pid  5165] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5164] <... futex resumed>)        = 0
[pid  5165] <... futex resumed>)        = 1
[pid  5164] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5165] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5164] <... futex resumed>)        = 0
[pid  5165] <... bpf resumed>)          = 0
[pid  5164] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5165] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5164] <... futex resumed>)        = 0
[pid  5165] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5164] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5165] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5164] <... futex resumed>)        = 0
[pid  5165] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5164] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5165] <... bpf resumed>)          = 5
[pid  5165] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5165] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5164] <... futex resumed>)        = 0
[pid  5164] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5165] <... futex resumed>)        = 0
[pid  5164] <... futex resumed>)        = 1
[pid  5165] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5164] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5165] <... bpf resumed>)          = 0
[pid  5165] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5164] <... futex resumed>)        = 0
[pid  5165] <... futex resumed>)        = 1
[pid  5164] exit_group(0)               = ?
[pid  5165] +++ exited with 0 +++
[pid  5164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./43/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./43")                           = 0
mkdir("./44", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached
, child_tidptr=0x555563d54690) = 5166
[pid  5166] set_robust_list(0x555563d546a0, 24) = 0
[pid  5166] chdir("./44")               = 0
[pid  5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5166] setpgid(0, 0)               = 0
[pid  5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5166] write(3, "1000", 4)         = 4
[pid  5166] close(3)                    = 0
[pid  5166] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5166] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5166] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5166] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5166] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5166] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5166] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5167 attached
 <unfinished ...>
[pid  5167] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5166] <... clone3 resumed> => {parent_tid=[5167]}, 88) = 5167
[pid  5167] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5166] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5167] <... set_robust_list resumed>) = 0
[pid  5167] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5166] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5167] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5166] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5167] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5166] <... futex resumed>)        = 0
[pid  5166] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5167] <... bpf resumed>)          = 3
[pid  5167] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5166] <... futex resumed>)        = 0
[pid  5167] <... futex resumed>)        = 1
[pid  5166] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5166] <... futex resumed>)        = 0
[pid  5166] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5167] <... bpf resumed>)          = 4
[pid  5167] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5166] <... futex resumed>)        = 0
[pid  5167] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5166] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5167] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5166] <... futex resumed>)        = 0
[pid  5167] <... bpf resumed>)          = 0
[pid  5167] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5166] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5167] <... futex resumed>)        = 0
[pid  5166] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5167] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5166] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5166] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5167] <... bpf resumed>)          = 5
[pid  5167] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5167] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5166] <... futex resumed>)        = 0
[pid  5166] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5167] <... futex resumed>)        = 0
[pid  5166] <... futex resumed>)        = 1
[pid  5167] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5166] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5167] <... bpf resumed>)          = 0
[pid  5167] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5166] <... futex resumed>)        = 0
[pid  5167] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5166] exit_group(0)               = ?
[pid  5167] <... futex resumed>)        = ?
[pid  5167] +++ exited with 0 +++
[pid  5166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./44/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./44")                           = 0
mkdir("./45", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5168 attached
, child_tidptr=0x555563d54690) = 5168
[pid  5168] set_robust_list(0x555563d546a0, 24) = 0
[pid  5168] chdir("./45")               = 0
[pid  5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5168] setpgid(0, 0)               = 0
[pid  5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5168] write(3, "1000", 4)         = 4
[pid  5168] close(3)                    = 0
[pid  5168] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5168] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5168] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5168] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5168] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5168] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5168] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5169 attached
 <unfinished ...>
[pid  5169] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5168] <... clone3 resumed> => {parent_tid=[5169]}, 88) = 5169
[pid  5169] <... rseq resumed>)         = 0
[pid  5168] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5169] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5168] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5169] <... set_robust_list resumed>) = 0
[pid  5168] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5168] <... futex resumed>)        = 0
[pid  5169] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5168] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5169] <... bpf resumed>)          = 3
[pid  5169] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5169] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5168] <... futex resumed>)        = 0
[pid  5168] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5169] <... futex resumed>)        = 0
[pid  5168] <... futex resumed>)        = 1
[pid  5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5168] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5169] <... bpf resumed>)          = 4
[pid  5169] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5168] <... futex resumed>)        = 0
[pid  5169] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5168] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5169] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5168] <... futex resumed>)        = 0
[pid  5169] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5168] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5169] <... bpf resumed>)          = 0
[pid  5169] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5168] <... futex resumed>)        = 0
[pid  5169] <... futex resumed>)        = 1
[pid  5168] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5169] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5168] <... futex resumed>)        = 0
[pid  5168] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5169] <... bpf resumed>)          = 5
[pid  5169] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5168] <... futex resumed>)        = 0
[pid  5169] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5168] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5169] <... futex resumed>)        = 0
[pid  5168] <... futex resumed>)        = 1
[pid  5169] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5168] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5169] <... bpf resumed>)          = 0
[pid  5169] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5168] <... futex resumed>)        = 0
[pid  5168] exit_group(0 <unfinished ...>
[pid  5169] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5168] <... exit_group resumed>)   = ?
[pid  5169] <... futex resumed>)        = ?
[pid  5169] +++ exited with 0 +++
[pid  5168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./45/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./45")                           = 0
mkdir("./46", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5170
./strace-static-x86_64: Process 5170 attached
[pid  5170] set_robust_list(0x555563d546a0, 24) = 0
[pid  5170] chdir("./46")               = 0
[pid  5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5170] setpgid(0, 0)               = 0
[pid  5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5170] write(3, "1000", 4)         = 4
[pid  5170] close(3)                    = 0
[pid  5170] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5170] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5170] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5170] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5170] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5171 attached
 => {parent_tid=[5171]}, 88) = 5171
[pid  5171] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5171] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5170] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5171] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5171] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5170] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5170] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5171] <... futex resumed>)        = 0
[pid  5170] <... futex resumed>)        = 1
[pid  5171] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5170] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5171] <... bpf resumed>)          = 3
[pid  5171] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5170] <... futex resumed>)        = 0
[pid  5171] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5170] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5170] <... futex resumed>)        = 0
[pid  5170] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5171] <... bpf resumed>)          = 4
[pid  5171] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5171] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5170] <... futex resumed>)        = 0
[pid  5170] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5171] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5171] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5171] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5171] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
[pid  5170] <... futex resumed>)        = 1
[pid  5171] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5170] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5170] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5171] <... futex resumed>)        = 0
[pid  5170] <... futex resumed>)        = 1
[pid  5171] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5170] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5171] <... bpf resumed>)          = 5
[pid  5171] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5170] <... futex resumed>)        = 0
[pid  5170] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5171] <... futex resumed>)        = 1
[pid  5170] <... futex resumed>)        = 0
[pid  5171] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5170] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5171] <... bpf resumed>)          = 0
[pid  5171] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5170] <... futex resumed>)        = 0
[pid  5171] <... futex resumed>)        = 1
[pid  5170] exit_group(0)               = ?
[pid  5171] +++ exited with 0 +++
[pid  5170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./46/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./46")                           = 0
mkdir("./47", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563d54690) = 5172
./strace-static-x86_64: Process 5172 attached
[pid  5172] set_robust_list(0x555563d546a0, 24) = 0
[pid  5172] chdir("./47")               = 0
[pid  5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5172] setpgid(0, 0)               = 0
[pid  5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5172] write(3, "1000", 4)         = 4
[pid  5172] close(3)                    = 0
[pid  5172] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5172] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5172] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5172] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5173 attached
 <unfinished ...>
[pid  5173] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5172] <... clone3 resumed> => {parent_tid=[5173]}, 88) = 5173
[pid  5172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5172] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5172] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5173] <... rseq resumed>)         = 0
[pid  5173] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5173] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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) = 3
[pid  5173] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5173] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5172] <... futex resumed>)        = 0
[pid  5172] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5173] <... futex resumed>)        = 0
[pid  5172] <... futex resumed>)        = 1
[pid  5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5172] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5173] <... bpf resumed>)          = 4
[pid  5173] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5173] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5172] <... futex resumed>)        = 0
[pid  5172] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5173] <... futex resumed>)        = 0
[pid  5172] <... futex resumed>)        = 1
[pid  5173] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5172] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5173] <... bpf resumed>)          = 0
[pid  5173] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5172] <... futex resumed>)        = 0
[pid  5173] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5172] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5173] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5172] <... futex resumed>)        = 0
[pid  5173] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5172] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5173] <... bpf resumed>)          = 5
[pid  5173] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5173] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5172] <... futex resumed>)        = 0
[pid  5172] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5173] <... futex resumed>)        = 0
[pid  5172] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5173] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5173] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5172] <... futex resumed>)        = 0
[pid  5173] <... futex resumed>)        = 1
[pid  5172] exit_group(0 <unfinished ...>
[pid  5173] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid  5172] <... exit_group resumed>)   = ?
[pid  5173] +++ exited with 0 +++
[pid  5172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./47/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./47")                           = 0
mkdir("./48", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5174 attached
, child_tidptr=0x555563d54690) = 5174
[pid  5174] set_robust_list(0x555563d546a0, 24) = 0
[pid  5174] chdir("./48")               = 0
[pid  5174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5174] setpgid(0, 0)               = 0
[pid  5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5174] write(3, "1000", 4)         = 4
[pid  5174] close(3)                    = 0
[pid  5174] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5174] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5174] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5174] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5174] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5174] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5175 attached
 <unfinished ...>
[pid  5175] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5174] <... clone3 resumed> => {parent_tid=[5175]}, 88) = 5175
[pid  5175] <... rseq resumed>)         = 0
[pid  5174] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5175] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5175] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5174] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5174] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5175] <... futex resumed>)        = 0
[pid  5174] <... futex resumed>)        = 1
[pid  5175] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5174] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5175] <... bpf resumed>)          = 3
[pid  5175] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5174] <... futex resumed>)        = 0
[pid  5175] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5174] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5175] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5174] <... futex resumed>)        = 0
[pid  5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5174] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5175] <... bpf resumed>)          = 4
[pid  5175] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5175] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5174] <... futex resumed>)        = 0
[pid  5174] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5175] <... futex resumed>)        = 0
[pid  5174] <... futex resumed>)        = 1
[pid  5175] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12) = 0
[pid  5174] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5175] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5174] <... futex resumed>)        = 0
[pid  5175] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5174] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5175] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5174] <... futex resumed>)        = 0
[pid  5175] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5174] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5175] <... bpf resumed>)          = 5
[pid  5175] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5174] <... futex resumed>)        = 0
[pid  5175] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5174] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5175] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5174] <... futex resumed>)        = 0
[pid  5175] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[pid  5174] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5175] <... bpf resumed>)          = 0
[pid  5175] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5174] <... futex resumed>)        = 0
[pid  5174] exit_group(0 <unfinished ...>
[pid  5175] <... futex resumed>)        = ?
[pid  5174] <... exit_group resumed>)   = ?
[pid  5175] +++ exited with 0 +++
[pid  5174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./48/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./48")                           = 0
mkdir("./49", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5176 attached
, child_tidptr=0x555563d54690) = 5176
[pid  5176] set_robust_list(0x555563d546a0, 24) = 0
[pid  5176] chdir("./49")               = 0
[pid  5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5176] setpgid(0, 0)               = 0
[pid  5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5176] write(3, "1000", 4)         = 4
[pid  5176] close(3)                    = 0
[pid  5176] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5176] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5176] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5176] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5176] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5176] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5176] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5177 attached
 <unfinished ...>
[pid  5177] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5176] <... clone3 resumed> => {parent_tid=[5177]}, 88) = 5177
[pid  5177] set_robust_list(0x7fd0098e49a0, 24 <unfinished ...>
[pid  5176] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5177] <... set_robust_list resumed>) = 0
[pid  5176] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5177] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5176] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5177] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5176] <... futex resumed>)        = 0
[pid  5177] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5176] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5177] <... bpf resumed>)          = 3
[pid  5177] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5176] <... futex resumed>)        = 0
[pid  5177] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5176] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5177] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5176] <... futex resumed>)        = 0
[pid  5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5176] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5177] <... bpf resumed>)          = 4
[pid  5177] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5177] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5176] <... futex resumed>)        = 0
[pid  5176] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5177] <... futex resumed>)        = 0
[pid  5176] <... futex resumed>)        = 1
[pid  5177] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5176] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5177] <... bpf resumed>)          = 0
[pid  5177] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5177] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5176] <... futex resumed>)        = 0
[pid  5176] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5177] <... futex resumed>)        = 0
[pid  5176] <... futex resumed>)        = 1
[pid  5177] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5176] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5177] <... bpf resumed>)          = 5
[pid  5177] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5177] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5176] <... futex resumed>)        = 0
[pid  5176] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5177] <... futex resumed>)        = 0
[pid  5176] <... futex resumed>)        = 1
[pid  5176] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5177] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80) = 0
[pid  5177] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5177] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5176] <... futex resumed>)        = 0
[pid  5176] exit_group(0 <unfinished ...>
[pid  5177] <... futex resumed>)        = ?
[pid  5176] <... exit_group resumed>)   = ?
[pid  5177] +++ exited with 0 +++
[pid  5176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555563d55730 /* 3 entries */, 32768) = 80
umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./49/binderfs")                 = 0
getdents64(3, 0x555563d55730 /* 0 entries */, 32768) = 0
close(3)                                = 0
rmdir("./49")                           = 0
mkdir("./50", 0777)                     = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5178 attached
, child_tidptr=0x555563d54690) = 5178
[pid  5178] set_robust_list(0x555563d546a0, 24) = 0
[pid  5178] chdir("./50")               = 0
[pid  5178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5178] setpgid(0, 0)               = 0
[pid  5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5178] write(3, "1000", 4)         = 4
[pid  5178] close(3)                    = 0
[pid  5178] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5178] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5178] rt_sigaction(SIGRT_1, {sa_handler=0x7fd009950540, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd0099416c0}, NULL, 8) = 0
[pid  5178] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd0098c4000
[pid  5178] mprotect(0x7fd0098c5000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5178] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5178] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd0098e4990, parent_tid=0x7fd0098e4990, exit_signal=0, stack=0x7fd0098c4000, stack_size=0x20300, tls=0x7fd0098e46c0}./strace-static-x86_64: Process 5179 attached
 => {parent_tid=[5179]}, 88) = 5179
[pid  5179] rseq(0x7fd0098e4fe0, 0x20, 0, 0x53053053) = 0
[pid  5179] set_robust_list(0x7fd0098e49a0, 24) = 0
[pid  5179] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5178] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5179] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5178] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5179] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5178] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5179] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5178] <... futex resumed>)        = 0
[pid  5179] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, 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 <unfinished ...>
[pid  5178] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5179] <... bpf resumed>)          = 3
[pid  5179] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5179] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5178] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5178] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5178] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5179] <... futex resumed>)        = 0
[pid  5179] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=12, insns=0x20000000, license="GPL", log_level=0, log_size=0, 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=-1, 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  5179] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5178] <... futex resumed>)        = 0
[pid  5179] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5178] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5179] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5178] <... futex resumed>)        = 0
[pid  5179] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=4, retval=4294967295, data_size_in=0, data_size_out=0, data_in=NULL, data_out=NULL, repeat=0, duration=0}}, 12 <unfinished ...>
[pid  5178] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5179] <... bpf resumed>)          = 0
[pid  5179] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5178] <... futex resumed>)        = 0
[pid  5179] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5178] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5179] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5178] <... futex resumed>)        = 0
[pid  5179] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=11, insns=0x200001c0, license="GPL", log_level=0, log_size=0, 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=-1, 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 <unfinished ...>
[pid  5178] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5179] <... bpf resumed>)          = 5
[pid  5179] futex(0x7fd0099b43ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5178] <... futex resumed>)        = 0
[pid  5179] futex(0x7fd0099b43e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5178] futex(0x7fd0099b43e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5179] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5178] <... futex resumed>)        = 0
[pid  5179] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=5, retval=587202562, data_size_in=0, data_size_out=33554432, data_in=NULL, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=BPF_F_TEST_XDP_LIVE_FRAMES, cpu=0, batch_size=0}}, 80 <unfinished ...>
[   85.031946][ T5179] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
[   85.044096][ T5179] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[   85.052514][ T5179] CPU: 0 PID: 5179 Comm: syz-executor120 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0
[   85.062594][ T5179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[   85.072646][ T5179] RIP: 0010:dev_map_enqueue+0x31/0x3e0
[pid  5178] futex(0x7fd0099b43ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[   85.078134][ T5179] Code: 41 56 41 55 41 54 53 48 83 ec 18 49 89 d4 49 89 f5 48 89 fd 49 be 00 00 00 00 00 fc ff df e8 e6 45 d8 ff 48 89 e8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 ef e8 d0 8b 3b 00 4c 8b 7d 00 48 83 c5
[   85.097767][ T5179] RSP: 0018:ffffc90003b0f688 EFLAGS: 00010246
[   85.103853][ T5179] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888025258000
[   85.111823][ T5179] RDX: 0000000000000000 RSI: ffff888024035070 RDI: 0000000000000000
[   85.119794][ T5179] RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff894ff55e
[   85.127768][ T5179] R10: 0000000000000004 R11: ffff888025258000 R12: ffff8880157d8000
[   85.135745][ T5179] R13: ffff888024035070 R14: dffffc0000000000 R15: ffff8880b943c088
[   85.143732][ T5179] FS:  00007fd0098e46c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[   85.152772][ T5179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.159382][ T5179] CR2: 00000000200009c0 CR3: 0000000025314000 CR4: 00000000003506f0
[   85.167436][ T5179] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   85.175416][ T5179] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   85.183394][ T5179] Call Trace:
[   85.186678][ T5179]  <TASK>
[   85.189613][ T5179]  ? __die_body+0x88/0xe0
[   85.193960][ T5179]  ? die_addr+0x108/0x140
[   85.198296][ T5179]  ? exc_general_protection+0x3dd/0x5d0
[   85.203883][ T5179]  ? asm_exc_general_protection+0x26/0x30
[   85.209642][ T5179]  ? xdp_do_redirect_frame+0x19e/0x4d0
[   85.215156][ T5179]  ? dev_map_enqueue+0x31/0x3e0
[   85.220039][ T5179]  ? dev_map_enqueue+0x2a/0x3e0
[   85.224930][ T5179]  xdp_do_redirect_frame+0x20d/0x4d0
[   85.230239][ T5179]  bpf_test_run_xdp_live+0xe8a/0x1e90
[   85.235621][ T5179]  ? stack_trace_save+0x118/0x1d0
[   85.240668][ T5179]  ? bpf_test_run_xdp_live+0x74e/0x1e90
[   85.246219][ T5179]  ? __pfx_bpf_test_run_xdp_live+0x10/0x10
[   85.252054][ T5179]  ? __pfx_xdp_test_run_init_page+0x10/0x10
[   85.257956][ T5179]  ? rcu_is_watching+0x15/0xb0
[   85.262724][ T5179]  ? __might_fault+0xaa/0x120
[   85.267402][ T5179]  ? __might_fault+0xc6/0x120
[   85.272088][ T5179]  ? _copy_from_user+0xa6/0xe0
[   85.276859][ T5179]  ? bpf_test_init+0x15a/0x180
[   85.281623][ T5179]  ? xdp_convert_md_to_buff+0x5b/0x330
[   85.287094][ T5179]  bpf_prog_test_run_xdp+0x813/0x11b0
[   85.292483][ T5179]  ? __pfx_bpf_prog_test_run_xdp+0x10/0x10
[   85.298293][ T5179]  ? __fget_files+0x28/0x470
[   85.302902][ T5179]  ? __pfx_bpf_prog_test_run_xdp+0x10/0x10
[   85.308715][ T5179]  bpf_prog_test_run+0x33a/0x3b0
[   85.313660][ T5179]  __sys_bpf+0x48d/0x810
[   85.317909][ T5179]  ? __pfx___sys_bpf+0x10/0x10
[   85.322685][ T5179]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[   85.329017][ T5179]  ? do_syscall_64+0x10a/0x240
[   85.333796][ T5179]  __x64_sys_bpf+0x7c/0x90
[   85.338220][ T5179]  do_syscall_64+0xfb/0x240
[   85.342751][ T5179]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   85.348674][ T5179] RIP: 0033:0x7fd00992a0d9
[   85.353093][ T5179] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[   85.372706][ T5179] RSP: 002b:00007fd0098e4238 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[   85.381297][ T5179] RAX: ffffffffffffffda RBX: 00007fd0099b43e8 RCX: 00007fd00992a0d9
[   85.389273][ T5179] RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
[   85.397250][ T5179] RBP: 00007fd0099b43e0 R08: 00007fd0098e46c0 R09: 00007fd0098e46c0
[   85.405225][ T5179] R10: 00007fd0098e46c0 R11: 0000000000000246 R12: 00007fd009981060
[   85.413200][ T5179] R13: 0000000000000016 R14: 00007fffcb70c160 R15: 00007fffcb70c248
[   85.421183][ T5179]  </TASK>
[   85.424201][ T5179] Modules linked in:
[   85.428192][ T5179] ---[ end trace 0000000000000000 ]---
[   85.433700][ T5179] RIP: 0010:dev_map_enqueue+0x31/0x3e0
[   85.439211][ T5179] Code: 41 56 41 55 41 54 53 48 83 ec 18 49 89 d4 49 89 f5 48 89 fd 49 be 00 00 00 00 00 fc ff df e8 e6 45 d8 ff 48 89 e8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 ef e8 d0 8b 3b 00 4c 8b 7d 00 48 83 c5
[   85.458883][ T5179] RSP: 0018:ffffc90003b0f688 EFLAGS: 00010246
[   85.465092][ T5179] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888025258000
[   85.473144][ T5179] RDX: 0000000000000000 RSI: ffff888024035070 RDI: 0000000000000000
[   85.481138][ T5179] RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff894ff55e
[   85.489166][ T5179] R10: 0000000000000004 R11: ffff888025258000 R12: ffff8880157d8000
[   85.497192][ T5179] R13: ffff888024035070 R14: dffffc0000000000 R15: ffff8880b943c088
[   85.505204][ T5179] FS:  00007fd0098e46c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[   85.514180][ T5179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.520776][ T5179] CR2: 00000000200009c0 CR3: 0000000025314000 CR4: 00000000003506f0
[   85.528800][ T5179] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   85.536831][ T5179] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   85.544846][ T5179] Kernel panic - not syncing: Fatal exception in interrupt
[   85.552143][ T5179] Kernel Offset: disabled
[   85.556463][ T5179] Rebooting in 86400 seconds..