./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1568558853 <...> ] audit: type=1400 audit(1713068451.281:64): avc: denied { rlimitinh } for pid=221 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.352440][ T30] audit: type=1400 audit(1713068451.281:65): avc: denied { siginh } for pid=221 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.706284][ T225] sftp-server (225) used greatest stack depth: 22288 bytes left Warning: Permanently added '10.128.0.235' (ED25519) to the list of known hosts. execve("./syz-executor1568558853", ["./syz-executor1568558853"], 0x7fff1897bb80 /* 10 vars */) = 0 brk(NULL) = 0x555555cf9000 brk(0x555555cf9e00) = 0x555555cf9e00 arch_prctl(ARCH_SET_FS, 0x555555cf9480) = 0 set_tid_address(0x555555cf9750) = 291 set_robust_list(0x555555cf9760, 24) = 0 rseq(0x555555cf9da0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1568558853", 4096) = 28 getrandom("\x16\xb1\x15\x9b\x30\xd3\x97\x03", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555cf9e00 brk(0x555555d1ae00) = 0x555555d1ae00 brk(0x555555d1b000) = 0x555555d1b000 mprotect(0x7f5bb4963000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f5bb48bc870, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f5bb48c53b0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f5bb48bc870, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f5bb48c53b0}, NULL, 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 292 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 293 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 294 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 295 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 296 ./strace-static-x86_64: Process 293 attached [pid 293] set_robust_list(0x555555cf9760, 24) = 0 [pid 293] mkdir("./syzkaller.9DX84o", 0700) = 0 [pid 293] chmod("./syzkaller.9DX84o", 0777) = 0 [pid 293] chdir("./syzkaller.9DX84o") = 0 [pid 293] mkdir("./0", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 296 attached ./strace-static-x86_64: Process 295 attached ./strace-static-x86_64: Process 294 attached [pid 296] set_robust_list(0x555555cf9760, 24./strace-static-x86_64: Process 297 attached [pid 295] set_robust_list(0x555555cf9760, 24 [pid 294] set_robust_list(0x555555cf9760, 24 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 297 [pid 297] set_robust_list(0x555555cf9760, 24 [pid 296] <... set_robust_list resumed>) = 0 [pid 295] <... set_robust_list resumed>) = 0 [pid 294] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 292 attached [pid 292] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] mkdir("./syzkaller.9DzGWT", 0700 [pid 292] mkdir("./syzkaller.a0Sced", 0700 [pid 295] mkdir("./syzkaller.5FZwGK", 0700 [pid 294] mkdir("./syzkaller.0o482s", 0700 [pid 297] <... set_robust_list resumed>) = 0 [pid 297] chdir("./0" [pid 292] <... mkdir resumed>) = 0 [pid 292] chmod("./syzkaller.a0Sced", 0777) = 0 [pid 292] chdir("./syzkaller.a0Sced" [pid 295] <... mkdir resumed>) = 0 [pid 292] <... chdir resumed>) = 0 [pid 292] mkdir("./0", 0777 [pid 296] <... mkdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] chmod("./syzkaller.5FZwGK", 0777 [pid 297] <... chdir resumed>) = 0 [pid 296] chmod("./syzkaller.9DzGWT", 0777 [pid 294] chmod("./syzkaller.0o482s", 0777 [pid 295] <... chmod resumed>) = 0 [pid 294] <... chmod resumed>) = 0 [pid 296] <... chmod resumed>) = 0 [pid 295] chdir("./syzkaller.5FZwGK" [pid 294] chdir("./syzkaller.0o482s" [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 296] chdir("./syzkaller.9DzGWT" [pid 295] <... chdir resumed>) = 0 [pid 294] <... chdir resumed>) = 0 [pid 296] <... chdir resumed>) = 0 [pid 294] mkdir("./0", 0777 [pid 295] mkdir("./0", 0777./strace-static-x86_64: Process 298 attached [pid 297] <... prctl resumed>) = 0 [pid 296] mkdir("./0", 0777 [pid 295] <... mkdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 298 [pid 298] set_robust_list(0x555555cf9760, 24 [pid 297] setpgid(0, 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 299 attached [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 299 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 301 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 300 [pid 297] <... setpgid resumed>) = 0 [pid 299] set_robust_list(0x555555cf9760, 24 [pid 297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 298] <... set_robust_list resumed>) = 0 [pid 298] chdir("./0" [pid 299] <... set_robust_list resumed>) = 0 [pid 298] <... chdir resumed>) = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 301 attached ./strace-static-x86_64: Process 300 attached [pid 299] chdir("./0" [pid 297] <... openat resumed>) = 3 [pid 298] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] write(3, "1000", 4 [pid 298] write(3, "1000", 4 [pid 297] <... write resumed>) = 4 [pid 298] <... write resumed>) = 4 [pid 298] close(3 [pid 297] close(3 [pid 298] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 297] symlink("/dev/binderfs", "./binderfs" [pid 298] symlink("/dev/binderfs", "./binderfs" [pid 301] set_robust_list(0x555555cf9760, 24) = 0 [pid 300] set_robust_list(0x555555cf9760, 24 [pid 299] <... chdir resumed>) = 0 [pid 300] <... set_robust_list resumed>) = 0 [pid 301] chdir("./0") = 0 [pid 301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 301] <... prctl resumed>) = 0 [pid 301] setpgid(0, 0) = 0 [pid 301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 299] <... prctl resumed>) = 0 [pid 301] <... openat resumed>) = 3 [pid 301] write(3, "1000", 4) = 4 [pid 301] close(3) = 0 [pid 301] symlink("/dev/binderfs", "./binderfs" [pid 299] setpgid(0, 0 [pid 300] chdir("./0") = 0 [pid 300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] setpgid(0, 0) = 0 [pid 300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] write(3, "1000", 4) = 4 [pid 300] close(3) = 0 [ 20.195088][ T30] audit: type=1400 audit(1713068460.131:66): avc: denied { execmem } for pid=291 comm="syz-executor156" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 300] symlink("/dev/binderfs", "./binderfs" [pid 299] <... setpgid resumed>) = 0 [pid 299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] write(3, "1000", 4) = 4 [pid 299] close(3) = 0 [pid 299] symlink("/dev/binderfs", "./binderfs" [pid 301] <... symlink resumed>) = 0 [pid 297] <... symlink resumed>) = 0 [pid 300] <... symlink resumed>) = 0 [pid 298] <... symlink resumed>) = 0 [pid 298] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 297] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 301] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 300] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 299] <... symlink resumed>) = 0 [ 20.250058][ T30] audit: type=1400 audit(1713068460.191:67): avc: denied { prog_load } for pid=298 comm="syz-executor156" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.287621][ T30] audit: type=1400 audit(1713068460.191:68): avc: denied { prog_load } for pid=301 comm="syz-executor156" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.307365][ T30] audit: type=1400 audit(1713068460.191:69): avc: denied { bpf } for pid=301 comm="syz-executor156" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 20.328245][ T30] audit: type=1400 audit(1713068460.191:70): avc: denied { perfmon } for pid=301 comm="syz-executor156" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [pid 299] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 300] <... bpf resumed>) = 3 [pid 299] <... bpf resumed>) = 3 [pid 297] <... bpf resumed>) = 3 [pid 300] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 298] <... bpf resumed>) = 3 [pid 297] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 298] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 299] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 300] <... bpf resumed>) = 4 [pid 300] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 299] <... bpf resumed>) = 4 [pid 298] <... bpf resumed>) = 4 [pid 297] <... bpf resumed>) = 4 [pid 301] <... bpf resumed>) = 3 [pid 299] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 298] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 297] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 300] <... bpf resumed>) = 5 [pid 299] <... bpf resumed>) = 5 [pid 298] <... bpf resumed>) = 5 [pid 297] <... bpf resumed>) = 5 [pid 301] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 299] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 298] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 297] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 299] <... bpf resumed>) = 0 [pid 298] <... bpf resumed>) = 0 [pid 297] <... bpf resumed>) = 0 [pid 299] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 298] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 297] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 301] <... bpf resumed>) = 4 [ 20.429601][ T30] audit: type=1400 audit(1713068460.371:71): avc: denied { prog_run } for pid=299 comm="syz-executor156" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.450043][ T30] audit: type=1400 audit(1713068460.371:72): avc: denied { prog_run } for pid=300 comm="syz-executor156" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [pid 300] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 301] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 300] <... bpf resumed>) = 0 [pid 299] <... bpf resumed>) = 6 [pid 298] <... bpf resumed>) = 6 [pid 298] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 299] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 298] <... bpf resumed>) = 7 [pid 301] <... bpf resumed>) = 5 [pid 299] <... bpf resumed>) = 7 [pid 298] exit_group(0 [pid 300] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 301] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 299] exit_group(0 [pid 298] <... exit_group resumed>) = ? [pid 301] <... bpf resumed>) = 0 [pid 299] <... exit_group resumed>) = ? [pid 301] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 300] <... bpf resumed>) = 6 [pid 297] <... bpf resumed>) = 6 [pid 301] <... bpf resumed>) = 6 [pid 300] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 297] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 301] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 299] +++ exited with 0 +++ [pid 298] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=299, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=298, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 295] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] <... openat resumed>) = 3 [pid 295] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./0/binderfs") = 0 [pid 292] newfstatat(3, "", [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./0") = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] mkdir("./1", 0777) = 0 [pid 292] getdents64(3, [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 303 attached [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 303 [pid 303] set_robust_list(0x555555cf9760, 24 [pid 292] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 303] <... set_robust_list resumed>) = 0 [pid 303] chdir("./1" [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./0/binderfs", [pid 303] <... chdir resumed>) = 0 [pid 303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 303] setpgid(0, 0) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] unlink("./0/binderfs" [pid 303] <... openat resumed>) = 3 [pid 292] <... unlink resumed>) = 0 [pid 303] write(3, "1000", 4) = 4 [pid 303] close(3) = 0 [pid 303] symlink("/dev/binderfs", "./binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 303] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] close(3 [pid 303] <... bpf resumed>) = 3 [pid 292] <... close resumed>) = 0 [pid 303] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 292] rmdir("./0") = 0 [pid 292] mkdir("./1", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 304 attached [pid 304] set_robust_list(0x555555cf9760, 24) = 0 [pid 304] chdir("./1") = 0 [pid 304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 304] setpgid(0, 0) = 0 [pid 304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 304 [pid 304] <... openat resumed>) = 3 [pid 304] write(3, "1000", 4) = 4 [pid 304] close(3) = 0 [pid 304] symlink("/dev/binderfs", "./binderfs") = 0 [pid 304] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 304] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 301] <... bpf resumed>) = 7 [pid 300] <... bpf resumed>) = 7 [pid 301] exit_group(0 [pid 300] exit_group(0 [pid 297] <... bpf resumed>) = 7 [pid 301] <... exit_group resumed>) = ? [pid 300] <... exit_group resumed>) = ? [pid 297] exit_group(0) = ? [pid 303] <... bpf resumed>) = 4 [pid 303] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 303] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 303] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [ 20.471382][ T30] audit: type=1400 audit(1713068460.411:73): avc: denied { map_create } for pid=300 comm="syz-executor156" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.490677][ T30] audit: type=1400 audit(1713068460.411:74): avc: denied { map_read map_write } for pid=300 comm="syz-executor156" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [pid 303] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 304] <... bpf resumed>) = 4 [pid 300] +++ exited with 0 +++ [pid 297] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=300, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=297, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 304] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 304] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 304] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 304] <... bpf resumed>) = 6 [pid 304] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 293] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 293] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./0/binderfs", [pid 293] newfstatat(AT_FDCWD, "./0/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./0/binderfs" [pid 293] unlink("./0/binderfs" [pid 294] <... unlink resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 293] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 293] close(3 [pid 294] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 294] rmdir("./0" [pid 293] rmdir("./0" [pid 294] <... rmdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 294] mkdir("./1", 0777 [pid 293] mkdir("./1", 0777 [pid 294] <... mkdir resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 305 attached [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 305 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 306 [pid 305] set_robust_list(0x555555cf9760, 24./strace-static-x86_64: Process 306 attached [pid 306] set_robust_list(0x555555cf9760, 24) = 0 [pid 306] chdir("./1") = 0 [pid 306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 306] setpgid(0, 0) = 0 [pid 306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 306] write(3, "1000", 4) = 4 [pid 306] close(3 [pid 305] <... set_robust_list resumed>) = 0 [pid 306] <... close resumed>) = 0 [pid 306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 305] chdir("./1" [pid 306] <... bpf resumed>) = 3 [pid 305] <... chdir resumed>) = 0 [pid 306] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 305] setpgid(0, 0) = 0 [pid 305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 305] write(3, "1000", 4) = 4 [pid 305] close(3) = 0 [pid 305] symlink("/dev/binderfs", "./binderfs") = 0 [pid 305] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 305] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 303] <... bpf resumed>) = 7 [pid 306] <... bpf resumed>) = 4 [pid 305] <... bpf resumed>) = 4 [pid 304] <... bpf resumed>) = 7 [pid 303] exit_group(0 [pid 301] +++ exited with 0 +++ [pid 306] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 305] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 304] exit_group(0 [pid 303] <... exit_group resumed>) = ? [pid 306] <... bpf resumed>) = 5 [pid 305] <... bpf resumed>) = 5 [pid 304] <... exit_group resumed>) = ? [pid 306] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 305] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=17} --- [pid 306] <... bpf resumed>) = 0 [pid 305] <... bpf resumed>) = 0 [pid 306] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 305] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 306] <... bpf resumed>) = 6 [pid 305] <... bpf resumed>) = 6 [pid 306] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 305] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./0/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./0") = 0 [pid 296] mkdir("./1", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 307 ./strace-static-x86_64: Process 307 attached [pid 307] set_robust_list(0x555555cf9760, 24) = 0 [pid 307] chdir("./1") = 0 [pid 307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 307] setpgid(0, 0) = 0 [pid 307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 307] write(3, "1000", 4) = 4 [pid 307] close(3) = 0 [pid 307] symlink("/dev/binderfs", "./binderfs") = 0 [pid 307] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 307] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 304] +++ exited with 0 +++ [pid 303] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=304, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=303, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 295] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./1/binderfs", [pid 295] newfstatat(AT_FDCWD, "./1/binderfs", [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./1/binderfs" [pid 295] unlink("./1/binderfs" [pid 292] <... unlink resumed>) = 0 [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 292] close(3 [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./1" [pid 292] <... close resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 292] rmdir("./1" [pid 295] mkdir("./2", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 292] mkdir("./2", 0777 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 308 ./strace-static-x86_64: Process 308 attached [pid 308] set_robust_list(0x555555cf9760, 24) = 0 [pid 308] chdir("./2" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 309 [pid 308] <... chdir resumed>) = 0 [pid 308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 308] setpgid(0, 0) = 0 [pid 308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 308] write(3, "1000", 4) = 4 [pid 308] close(3) = 0 [pid 308] symlink("/dev/binderfs", "./binderfs") = 0 [pid 308] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 308] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 309 attached [pid 309] set_robust_list(0x555555cf9760, 24) = 0 [pid 309] chdir("./2") = 0 [pid 309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 309] setpgid(0, 0) = 0 [pid 309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 309] write(3, "1000", 4) = 4 [pid 309] close(3) = 0 [pid 309] symlink("/dev/binderfs", "./binderfs") = 0 [pid 309] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 309] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 306] <... bpf resumed>) = 7 [pid 305] <... bpf resumed>) = 7 [pid 309] <... bpf resumed>) = 4 [pid 308] <... bpf resumed>) = 4 [pid 307] <... bpf resumed>) = 4 [pid 306] exit_group(0 [pid 305] exit_group(0 [pid 309] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 308] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 307] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 306] <... exit_group resumed>) = ? [pid 305] <... exit_group resumed>) = ? [pid 309] <... bpf resumed>) = 5 [pid 308] <... bpf resumed>) = 5 [pid 307] <... bpf resumed>) = 5 [pid 309] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 308] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 307] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 309] <... bpf resumed>) = 0 [pid 308] <... bpf resumed>) = 0 [pid 307] <... bpf resumed>) = 0 [ 20.629473][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 20.641048][ T288] BUG: scheduling while atomic: strace-static-x/288/0x00000002 [ 20.648469][ T288] Modules linked in: [ 20.652120][ T288] Preemption disabled at: [ 20.652125][ T288] [] is_module_text_address+0x1a/0x140 [ 20.663370][ T288] CPU: 0 PID: 288 Comm: strace-static-x Not tainted 5.15.148-syzkaller-00718-g993bed180178 #0 [ 20.673414][ T288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 20.683309][ T288] Call Trace: [ 20.686434][ T288] [ 20.689211][ T288] dump_stack_lvl+0x151/0x1b7 [ 20.693726][ T288] ? is_module_text_address+0x1a/0x140 [ 20.699019][ T288] ? is_module_text_address+0x1a/0x140 [ 20.704315][ T288] ? io_uring_drop_tctx_refs+0x190/0x190 [ 20.709783][ T288] ? call_rcu+0xcfd/0x12a0 [ 20.714035][ T288] ? is_module_text_address+0x1a/0x140 [ 20.719328][ T288] dump_stack+0x15/0x17 [ 20.723322][ T288] __schedule_bug+0x195/0x260 [ 20.727834][ T288] ? rcu_gp_kthread_wake+0x90/0x90 [ 20.732783][ T288] ? ttwu_queue_wakelist+0x510/0x510 [ 20.737903][ T288] ? sysvec_call_function_single+0x52/0xb0 [ 20.743544][ T288] __schedule+0xd19/0x1590 [ 20.747802][ T288] ? blkcg_maybe_throttle_current+0x17d/0xa00 [ 20.753700][ T288] ? __sched_text_start+0x8/0x8 [ 20.758383][ T288] ? __blkcg_punt_bio_submit+0x180/0x180 [ 20.763852][ T288] ? unlock_page_memcg+0x160/0x160 [ 20.768800][ T288] schedule+0x11f/0x1e0 [ 20.772798][ T288] exit_to_user_mode_loop+0x4d/0xe0 [ 20.777826][ T288] exit_to_user_mode_prepare+0x5a/0xa0 [ 20.783122][ T288] syscall_exit_to_user_mode+0x26/0x160 [ 20.788504][ T288] do_syscall_64+0x49/0xb0 [ 20.792754][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 20.798485][ T288] RIP: 0033:0x4e65f7 [ 20.802218][ T288] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 20.821656][ T288] RSP: 002b:00007fff1897b678 EFLAGS: 00000286 ORIG_RAX: 0000000000000003 [pid 309] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 308] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 307] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 306] +++ exited with 0 +++ [pid 309] <... bpf resumed>) = 6 [pid 308] <... bpf resumed>) = 6 [pid 307] <... bpf resumed>) = 6 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=306, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 308] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 307] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 309] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./1/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./1") = 0 [pid 293] mkdir("./2", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 310 ./strace-static-x86_64: Process 310 attached [pid 310] set_robust_list(0x555555cf9760, 24) = 0 [pid 310] chdir("./2") = 0 [pid 310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 310] setpgid(0, 0) = 0 [pid 310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 310] write(3, "1000", 4) = 4 [pid 310] close(3) = 0 [pid 310] symlink("/dev/binderfs", "./binderfs") = 0 [pid 310] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 310] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 308] <... bpf resumed>) = 7 [pid 307] <... bpf resumed>) = 7 [pid 310] <... bpf resumed>) = 4 [pid 309] <... bpf resumed>) = 7 [pid 308] exit_group(0 [pid 305] +++ exited with 0 +++ [pid 310] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 309] exit_group(0 [pid 308] <... exit_group resumed>) = ? [pid 307] exit_group(0 [pid 310] <... bpf resumed>) = 5 [pid 309] <... exit_group resumed>) = ? [pid 308] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=305, si_uid=0, si_status=0, si_utime=0, si_stime=21} --- [pid 307] <... exit_group resumed>) = ? [pid 294] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=308, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 310] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 310] <... bpf resumed>) = 0 [pid 295] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 310] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [ 20.829905][ T288] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 00000000004e65f7 [ 20.837818][ T288] RDX: 00007fff1897b680 RSI: 0000000000008910 RDI: 0000000000000003 [ 20.850185][ T288] RBP: 0000000000000003 R08: 00000000ffffffff R09: 000000000000000d [ 20.859087][ T288] R10: 00000000005549d3 R11: 0000000000000286 R12: 00007fff1897b6e0 [ 20.867061][ T288] R13: 00007fff1897b680 R14: 0000000000427210 R15: 0000000000617180 [ 20.874898][ T288] [pid 295] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] newfstatat(3, "", [pid 294] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./1/binderfs", [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] newfstatat(AT_FDCWD, "./2/binderfs", [pid 294] unlink("./1/binderfs") = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] getdents64(3, [pid 295] unlink("./2/binderfs") = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] getdents64(3, [pid 294] close(3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 294] <... close resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 294] rmdir("./1" [pid 295] rmdir("./2" [pid 294] <... rmdir resumed>) = 0 [pid 310] <... bpf resumed>) = 6 [pid 295] <... rmdir resumed>) = 0 [pid 294] mkdir("./2", 0777 [pid 295] mkdir("./3", 0777 [pid 294] <... mkdir resumed>) = 0 [pid 310] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 311 attached [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 311 [pid 311] set_robust_list(0x555555cf9760, 24 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 312 ./strace-static-x86_64: Process 312 attached [pid 311] <... set_robust_list resumed>) = 0 [pid 312] set_robust_list(0x555555cf9760, 24) = 0 [pid 311] chdir("./2" [pid 312] chdir("./3" [pid 311] <... chdir resumed>) = 0 [pid 312] <... chdir resumed>) = 0 [pid 312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 312] setpgid(0, 0) = 0 [pid 312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 312] <... openat resumed>) = 3 [pid 311] <... prctl resumed>) = 0 [pid 312] write(3, "1000", 4) = 4 [pid 312] close(3) = 0 [pid 311] setpgid(0, 0 [pid 312] symlink("/dev/binderfs", "./binderfs" [pid 309] +++ exited with 0 +++ [pid 312] <... symlink resumed>) = 0 [pid 312] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=309, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 311] <... setpgid resumed>) = 0 [pid 292] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", [pid 312] <... bpf resumed>) = 3 [pid 311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 311] <... openat resumed>) = 3 [pid 311] write(3, "1000", 4 [pid 292] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./2/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 312] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 311] <... write resumed>) = 4 [pid 292] rmdir("./2") = 0 [pid 292] mkdir("./3", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 311] close(3 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 313 ./strace-static-x86_64: Process 313 attached [pid 313] set_robust_list(0x555555cf9760, 24) = 0 [pid 311] <... close resumed>) = 0 [pid 313] chdir("./3") = 0 [pid 313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 311] symlink("/dev/binderfs", "./binderfs" [pid 313] setpgid(0, 0) = 0 [pid 313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 311] <... symlink resumed>) = 0 [pid 313] <... openat resumed>) = 3 [pid 311] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 313] write(3, "1000", 4) = 4 [pid 313] close(3) = 0 [pid 313] symlink("/dev/binderfs", "./binderfs") = 0 [pid 313] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 311] <... bpf resumed>) = 3 [pid 311] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 313] <... bpf resumed>) = 3 [pid 313] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 312] <... bpf resumed>) = 4 [pid 310] <... bpf resumed>) = 7 [pid 307] +++ exited with 0 +++ [pid 311] <... bpf resumed>) = 4 [pid 313] <... bpf resumed>) = 4 [pid 312] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 313] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 311] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 310] exit_group(0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 313] <... bpf resumed>) = 5 [pid 312] <... bpf resumed>) = 5 [pid 310] <... exit_group resumed>) = ? [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 313] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 312] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 311] <... bpf resumed>) = 5 [pid 310] +++ exited with 0 +++ [pid 313] <... bpf resumed>) = 0 [pid 312] <... bpf resumed>) = 0 [pid 311] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... restart_syscall resumed>) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 313] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 312] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 311] <... bpf resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 293] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 293] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] newfstatat(3, "", [pid 296] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./2/binderfs", [pid 296] newfstatat(AT_FDCWD, "./1/binderfs", [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./2/binderfs" [pid 312] <... bpf resumed>) = 6 [pid 296] unlink("./1/binderfs" [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3 [pid 296] <... unlink resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 312] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] getdents64(3, [pid 293] rmdir("./2" [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 311] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] mkdir("./3", 0777 [pid 296] close(3 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./1" [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 314 ./strace-static-x86_64: Process 314 attached [pid 314] set_robust_list(0x555555cf9760, 24 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./2", 0777 [pid 314] <... set_robust_list resumed>) = 0 [pid 314] chdir("./3") = 0 [pid 314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 314] <... prctl resumed>) = 0 [pid 314] setpgid(0, 0) = 0 [pid 314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 314] write(3, "1000", 4 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 315 [pid 314] <... write resumed>) = 4 [pid 314] close(3) = 0 [pid 314] symlink("/dev/binderfs", "./binderfs") = 0 [pid 314] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 313] <... bpf resumed>) = 6 [pid 311] <... bpf resumed>) = 6 [pid 313] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 311] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 314] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 315 attached [pid 314] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 315] set_robust_list(0x555555cf9760, 24) = 0 [pid 315] chdir("./2") = 0 [pid 315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 315] setpgid(0, 0) = 0 [pid 315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 315] write(3, "1000", 4) = 4 [pid 315] close(3) = 0 [pid 315] symlink("/dev/binderfs", "./binderfs") = 0 [pid 315] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 315] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 312] <... bpf resumed>) = 7 [pid 313] <... bpf resumed>) = 7 [pid 315] <... bpf resumed>) = 4 [pid 314] <... bpf resumed>) = 4 [pid 312] exit_group(0 [pid 311] <... bpf resumed>) = 7 [pid 314] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 313] exit_group(0 [pid 312] <... exit_group resumed>) = ? [pid 311] exit_group(0 [pid 315] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 314] <... bpf resumed>) = 5 [pid 313] <... exit_group resumed>) = ? [pid 314] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 311] <... exit_group resumed>) = ? [pid 314] <... bpf resumed>) = 0 [pid 312] +++ exited with 0 +++ [pid 314] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=312, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 315] <... bpf resumed>) = 5 [pid 295] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 315] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 314] <... bpf resumed>) = 6 [pid 295] newfstatat(3, "", [pid 315] <... bpf resumed>) = 0 [pid 314] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 315] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 315] <... bpf resumed>) = 6 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 315] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./3/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./3") = 0 [pid 295] mkdir("./4", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 316 ./strace-static-x86_64: Process 316 attached [pid 316] set_robust_list(0x555555cf9760, 24) = 0 [pid 316] chdir("./4") = 0 [pid 316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 316] setpgid(0, 0) = 0 [pid 316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 316] write(3, "1000", 4) = 4 [pid 316] close(3) = 0 [pid 316] symlink("/dev/binderfs", "./binderfs") = 0 [pid 316] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 316] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 313] +++ exited with 0 +++ [pid 311] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=311, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=313, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] <... restart_syscall resumed>) = 0 [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 294] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 294] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] newfstatat(AT_FDCWD, "./2/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./3/binderfs", [pid 294] unlink("./2/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... unlink resumed>) = 0 [pid 292] unlink("./3/binderfs" [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] close(3 [pid 292] getdents64(3, [pid 294] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] rmdir("./2" [pid 292] close(3 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./3", 0777 [pid 292] <... close resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 292] rmdir("./3" [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./4", 0777 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 317 ./strace-static-x86_64: Process 317 attached [pid 317] set_robust_list(0x555555cf9760, 24) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 317] chdir("./3") = 0 [pid 317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 318 [pid 317] setpgid(0, 0) = 0 [pid 317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 317] write(3, "1000", 4) = 4 [pid 317] close(3) = 0 [pid 317] symlink("/dev/binderfs", "./binderfs") = 0 [pid 317] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 317] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 318 attached [pid 318] set_robust_list(0x555555cf9760, 24) = 0 [pid 318] chdir("./4") = 0 [pid 318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 318] setpgid(0, 0) = 0 [pid 318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 318] write(3, "1000", 4) = 4 [pid 318] close(3) = 0 [pid 318] symlink("/dev/binderfs", "./binderfs") = 0 [pid 318] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 318] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 317] <... bpf resumed>) = 4 [pid 316] <... bpf resumed>) = 4 [pid 315] <... bpf resumed>) = 7 [pid 314] <... bpf resumed>) = 7 [pid 318] <... bpf resumed>) = 4 [pid 317] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 316] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 315] exit_group(0 [ 21.018560][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 21.029983][ T288] BUG: scheduling while atomic: strace-static-x/288/0x00000002 [ 21.037470][ T288] Modules linked in: [ 21.041179][ T288] Preemption disabled at: [ 21.041191][ T288] [] is_module_text_address+0x1a/0x140 [ 21.052330][ T288] CPU: 0 PID: 288 Comm: strace-static-x Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 21.064231][ T288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 21.074109][ T288] Call Trace: [ 21.077234][ T288] [ 21.080013][ T288] dump_stack_lvl+0x151/0x1b7 [ 21.084520][ T288] ? is_module_text_address+0x1a/0x140 [ 21.089815][ T288] ? is_module_text_address+0x1a/0x140 [ 21.095110][ T288] ? io_uring_drop_tctx_refs+0x190/0x190 [ 21.100580][ T288] ? call_rcu+0xcfd/0x12a0 [ 21.104830][ T288] ? is_module_text_address+0x1a/0x140 [ 21.110126][ T288] dump_stack+0x15/0x17 [ 21.114117][ T288] __schedule_bug+0x195/0x260 [ 21.118638][ T288] ? rcu_gp_kthread_wake+0x90/0x90 [ 21.123584][ T288] ? ttwu_queue_wakelist+0x510/0x510 [ 21.128699][ T288] ? kmem_cache_free+0x2c3/0x2e0 [ 21.133475][ T288] __schedule+0xd19/0x1590 [ 21.137735][ T288] ? blkcg_maybe_throttle_current+0x17d/0xa00 [ 21.143640][ T288] ? __sched_text_start+0x8/0x8 [ 21.148318][ T288] ? __blkcg_punt_bio_submit+0x180/0x180 [ 21.153792][ T288] ? unlock_page_memcg+0x160/0x160 [ 21.158732][ T288] schedule+0x11f/0x1e0 [ 21.162722][ T288] exit_to_user_mode_loop+0x4d/0xe0 [ 21.167770][ T288] exit_to_user_mode_prepare+0x5a/0xa0 [ 21.173061][ T288] syscall_exit_to_user_mode+0x26/0x160 [ 21.178521][ T288] do_syscall_64+0x49/0xb0 [ 21.182789][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 21.188501][ T288] RIP: 0033:0x4e65f7 [ 21.192241][ T288] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [pid 318] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 317] <... bpf resumed>) = 5 [pid 316] <... bpf resumed>) = 5 [pid 315] <... exit_group resumed>) = ? [pid 314] exit_group(0 [pid 317] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 316] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 315] +++ exited with 0 +++ [pid 317] <... bpf resumed>) = 0 [pid 316] <... bpf resumed>) = 0 [pid 314] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=315, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 317] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 316] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 317] <... bpf resumed>) = 6 [pid 316] <... bpf resumed>) = 6 [pid 314] +++ exited with 0 +++ [pid 318] <... bpf resumed>) = 5 [pid 317] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 316] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=314, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 318] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 318] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] newfstatat(3, "", [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] getdents64(3, [pid 296] <... openat resumed>) = 3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] newfstatat(3, "", [pid 293] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] getdents64(3, [pid 293] newfstatat(AT_FDCWD, "./3/binderfs", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] unlink("./3/binderfs" [pid 296] newfstatat(AT_FDCWD, "./2/binderfs", [pid 293] <... unlink resumed>) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] getdents64(3, [pid 296] unlink("./2/binderfs" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... unlink resumed>) = 0 [pid 293] close(3 [pid 296] getdents64(3, [pid 293] <... close resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] rmdir("./3" [pid 296] close(3 [pid 293] <... rmdir resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 293] mkdir("./4", 0777 [pid 296] rmdir("./2" [pid 293] <... mkdir resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] mkdir("./3", 0777./strace-static-x86_64: Process 319 attached [pid 319] set_robust_list(0x555555cf9760, 24) = 0 [pid 319] chdir("./4") = 0 [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 319 [pid 318] <... bpf resumed>) = 6 [pid 319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 319] setpgid(0, 0) = 0 [pid 319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 320 [pid 318] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 319] <... openat resumed>) = 3 [pid 319] write(3, "1000", 4) = 4 [pid 319] close(3) = 0 [pid 319] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 320 attached [pid 320] set_robust_list(0x555555cf9760, 24 [pid 319] <... symlink resumed>) = 0 [pid 319] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 320] <... set_robust_list resumed>) = 0 [pid 320] chdir("./3") = 0 [pid 320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 319] <... bpf resumed>) = 3 [pid 319] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 320] setpgid(0, 0) = 0 [pid 320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 320] write(3, "1000", 4) = 4 [pid 320] close(3) = 0 [pid 320] symlink("/dev/binderfs", "./binderfs") = 0 [pid 320] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 320] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 317] <... bpf resumed>) = 7 [pid 319] <... bpf resumed>) = 4 [pid 318] <... bpf resumed>) = 7 [pid 317] exit_group(0 [pid 316] <... bpf resumed>) = 7 [pid 319] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 318] exit_group(0 [pid 317] <... exit_group resumed>) = ? [pid 320] <... bpf resumed>) = 4 [pid 319] <... bpf resumed>) = 5 [pid 318] <... exit_group resumed>) = ? [pid 317] +++ exited with 0 +++ [pid 316] exit_group(0 [pid 320] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 319] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 316] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=317, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 320] <... bpf resumed>) = 5 [pid 319] <... bpf resumed>) = 0 [pid 319] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 320] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 319] <... bpf resumed>) = 6 [pid 320] <... bpf resumed>) = 0 [pid 319] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 320] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 320] <... bpf resumed>) = 6 [pid 294] newfstatat(3, "", [pid 320] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./3/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./3") = 0 [pid 294] mkdir("./4", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 321 ./strace-static-x86_64: Process 321 attached [pid 321] set_robust_list(0x555555cf9760, 24) = 0 [pid 321] chdir("./4") = 0 [pid 321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 321] setpgid(0, 0) = 0 [pid 321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 321] write(3, "1000", 4) = 4 [ 21.211677][ T288] RSP: 002b:00007fff1897b6a8 EFLAGS: 00000286 ORIG_RAX: 0000000000000003 [ 21.220006][ T288] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 00000000004e65f7 [ 21.227840][ T288] RDX: 00007fff1897b6b0 RSI: 0000000000008910 RDI: 0000000000000003 [ 21.235628][ T288] RBP: 0000000000000003 R08: 00000000ffffffff R09: 000000000000000c [ 21.243441][ T288] R10: 0000000000554612 R11: 0000000000000286 R12: 00007fff1897b710 [ 21.251253][ T288] R13: 00007fff1897b6b0 R14: 0000000000423160 R15: 0000000000617180 [ 21.259167][ T288] [pid 321] close(3) = 0 [pid 318] +++ exited with 0 +++ [pid 316] +++ exited with 0 +++ [pid 321] symlink("/dev/binderfs", "./binderfs" [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=318, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 321] <... symlink resumed>) = 0 [pid 292] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./4/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 321] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] close(3 [pid 295] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... close resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] rmdir("./4" [pid 295] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./5", 0777 [pid 295] <... openat resumed>) = 3 [pid 292] <... mkdir resumed>) = 0 [pid 321] <... bpf resumed>) = 3 [pid 295] newfstatat(3, "", [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 321] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 ./strace-static-x86_64: Process 322 attached [pid 295] getdents64(3, [pid 322] set_robust_list(0x555555cf9760, 24 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 322 [pid 322] <... set_robust_list resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 322] chdir("./5" [pid 295] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 322] <... chdir resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 295] newfstatat(AT_FDCWD, "./4/binderfs", [pid 322] <... prctl resumed>) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 322] setpgid(0, 0 [pid 295] unlink("./4/binderfs" [pid 322] <... setpgid resumed>) = 0 [pid 322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] <... unlink resumed>) = 0 [pid 322] write(3, "1000", 4 [pid 295] getdents64(3, [pid 322] <... write resumed>) = 4 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 322] close(3 [pid 295] close(3 [pid 322] <... close resumed>) = 0 [pid 322] symlink("/dev/binderfs", "./binderfs" [pid 295] <... close resumed>) = 0 [pid 322] <... symlink resumed>) = 0 [pid 295] rmdir("./4" [pid 322] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./5", 0777 [pid 322] <... bpf resumed>) = 3 [pid 322] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 323 attached , child_tidptr=0x555555cf9750) = 323 [pid 323] set_robust_list(0x555555cf9760, 24) = 0 [pid 323] chdir("./5") = 0 [pid 323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 323] setpgid(0, 0) = 0 [pid 323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 323] write(3, "1000", 4) = 4 [pid 323] close(3) = 0 [pid 323] symlink("/dev/binderfs", "./binderfs") = 0 [pid 323] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 323] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 320] <... bpf resumed>) = 7 [pid 319] <... bpf resumed>) = 7 [pid 323] <... bpf resumed>) = 4 [pid 322] <... bpf resumed>) = 4 [pid 321] <... bpf resumed>) = 4 [pid 320] exit_group(0 [pid 323] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 322] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 321] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 320] <... exit_group resumed>) = ? [pid 319] exit_group(0 [pid 323] <... bpf resumed>) = 5 [pid 322] <... bpf resumed>) = 5 [pid 321] <... bpf resumed>) = 5 [pid 320] +++ exited with 0 +++ [pid 319] <... exit_group resumed>) = ? [pid 323] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 322] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 321] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 323] <... bpf resumed>) = 0 [pid 322] <... bpf resumed>) = 0 [pid 319] +++ exited with 0 +++ [pid 323] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 322] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 321] <... bpf resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=320, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=319, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 323] <... bpf resumed>) = 6 [pid 322] <... bpf resumed>) = 6 [pid 321] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 323] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 322] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW [pid 321] <... bpf resumed>) = 6 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 321] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] getdents64(3, [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] <... openat resumed>) = 3 [pid 296] newfstatat(AT_FDCWD, "./3/binderfs", [pid 293] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] unlink("./3/binderfs" [pid 293] getdents64(3, [pid 296] <... unlink resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] close(3) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] rmdir("./3") = 0 [pid 293] newfstatat(AT_FDCWD, "./4/binderfs", [pid 296] mkdir("./4", 0777 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 293] unlink("./4/binderfs" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... unlink resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 325 [pid 293] getdents64(3, ./strace-static-x86_64: Process 325 attached 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./4") = 0 [pid 293] mkdir("./5", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 326 ./strace-static-x86_64: Process 326 attached [pid 326] set_robust_list(0x555555cf9760, 24) = 0 [pid 326] chdir("./5" [pid 325] set_robust_list(0x555555cf9760, 24 [pid 326] <... chdir resumed>) = 0 [pid 325] <... set_robust_list resumed>) = 0 [pid 326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 326] setpgid(0, 0) = 0 [pid 325] chdir("./4" [pid 326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 325] <... chdir resumed>) = 0 [pid 326] write(3, "1000", 4) = 4 [pid 325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 326] close(3) = 0 [pid 326] symlink("/dev/binderfs", "./binderfs" [pid 325] <... prctl resumed>) = 0 [pid 326] <... symlink resumed>) = 0 [pid 325] setpgid(0, 0 [pid 326] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 325] <... setpgid resumed>) = 0 [pid 325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 326] <... bpf resumed>) = 3 [pid 325] <... openat resumed>) = 3 [pid 325] write(3, "1000", 4 [pid 326] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 321] <... bpf resumed>) = 7 [pid 325] <... write resumed>) = 4 [pid 323] <... bpf resumed>) = 7 [pid 322] <... bpf resumed>) = 7 [pid 325] close(3 [pid 323] exit_group(0 [pid 322] exit_group(0 [pid 321] exit_group(0 [pid 325] <... close resumed>) = 0 [pid 323] <... exit_group resumed>) = ? [pid 322] <... exit_group resumed>) = ? [pid 321] <... exit_group resumed>) = ? [pid 326] <... bpf resumed>) = 4 [pid 325] symlink("/dev/binderfs", "./binderfs" [pid 323] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=323, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 326] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 325] <... symlink resumed>) = 0 [pid 326] <... bpf resumed>) = 5 [pid 325] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 326] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 295] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 326] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", [pid 325] <... bpf resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./5/binderfs", [pid 326] <... bpf resumed>) = 6 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 326] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 325] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 295] unlink("./5/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./5") = 0 [pid 295] mkdir("./6", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 327 attached , child_tidptr=0x555555cf9750) = 327 [pid 327] set_robust_list(0x555555cf9760, 24) = 0 [pid 327] chdir("./6") = 0 [pid 327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 327] setpgid(0, 0) = 0 [pid 327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 327] write(3, "1000", 4) = 4 [pid 327] close(3) = 0 [pid 327] symlink("/dev/binderfs", "./binderfs") = 0 [pid 327] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 327] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 325] <... bpf resumed>) = 4 [pid 321] +++ exited with 0 +++ [pid 325] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=321, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 325] <... bpf resumed>) = 5 [pid 325] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 325] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 325] <... bpf resumed>) = 6 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 325] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./4/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./4") = 0 [pid 294] mkdir("./5", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 328 ./strace-static-x86_64: Process 328 attached [pid 328] set_robust_list(0x555555cf9760, 24) = 0 [pid 328] chdir("./5") = 0 [pid 328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 328] setpgid(0, 0) = 0 [pid 328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 328] write(3, "1000", 4) = 4 [pid 328] close(3) = 0 [pid 328] symlink("/dev/binderfs", "./binderfs") = 0 [pid 328] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 328] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 326] <... bpf resumed>) = 7 [pid 326] exit_group(0 [pid 325] <... bpf resumed>) = 7 [pid 322] +++ exited with 0 +++ [pid 326] <... exit_group resumed>) = ? [pid 325] exit_group(0 [pid 328] <... bpf resumed>) = 4 [pid 327] <... bpf resumed>) = 4 [pid 325] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=322, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 328] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 327] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 292] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 327] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 327] <... bpf resumed>) = 0 [pid 327] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./5/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./5") = 0 [pid 292] mkdir("./6", 0777 [pid 327] <... bpf resumed>) = 6 [pid 292] <... mkdir resumed>) = 0 [pid 327] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 329 attached , child_tidptr=0x555555cf9750) = 329 [pid 329] set_robust_list(0x555555cf9760, 24) = 0 [pid 329] chdir("./6") = 0 [pid 328] <... bpf resumed>) = 5 [pid 329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 328] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 328] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 329] <... prctl resumed>) = 0 [pid 329] setpgid(0, 0) = 0 [pid 329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 329] write(3, "1000", 4) = 4 [pid 329] close(3) = 0 [pid 329] symlink("/dev/binderfs", "./binderfs") = 0 [pid 328] <... bpf resumed>) = 6 [pid 328] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 329] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 329] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 326] +++ exited with 0 +++ [pid 325] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=325, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=326, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 293] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] newfstatat(3, "", [pid 296] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] getdents64(3, [pid 296] umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./4/binderfs", [pid 293] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./4/binderfs" [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... unlink resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./5/binderfs", [pid 296] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] unlink("./5/binderfs" [pid 296] close(3 [pid 293] <... unlink resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 293] getdents64(3, [pid 296] rmdir("./4" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 293] close(3 [pid 296] mkdir("./5", 0777 [pid 293] <... close resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 293] rmdir("./5" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./6", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 330 ./strace-static-x86_64: Process 330 attached [pid 330] set_robust_list(0x555555cf9760, 24) = 0 [pid 330] chdir("./5" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 330] <... chdir resumed>) = 0 [pid 330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 330] setpgid(0, 0) = 0 [pid 330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 331 [pid 330] <... openat resumed>) = 3 ./strace-static-x86_64: Process 331 attached [pid 330] write(3, "1000", 4) = 4 [pid 330] close(3) = 0 [pid 331] set_robust_list(0x555555cf9760, 24 [pid 330] symlink("/dev/binderfs", "./binderfs" [pid 331] <... set_robust_list resumed>) = 0 [pid 331] chdir("./6" [pid 330] <... symlink resumed>) = 0 [pid 331] <... chdir resumed>) = 0 [pid 330] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 331] setpgid(0, 0) = 0 [pid 331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 330] <... bpf resumed>) = 3 [pid 331] <... openat resumed>) = 3 [pid 330] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 331] write(3, "1000", 4) = 4 [pid 331] close(3) = 0 [pid 331] symlink("/dev/binderfs", "./binderfs") = 0 [pid 331] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 331] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 327] <... bpf resumed>) = 7 [pid 329] <... bpf resumed>) = 4 [pid 328] <... bpf resumed>) = 7 [pid 327] exit_group(0 [pid 329] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 327] <... exit_group resumed>) = ? [pid 331] <... bpf resumed>) = 4 [pid 330] <... bpf resumed>) = 4 [pid 329] <... bpf resumed>) = 5 [pid 328] exit_group(0 [pid 329] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 328] <... exit_group resumed>) = ? [pid 329] <... bpf resumed>) = 0 [pid 329] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 329] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 331] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 330] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 331] <... bpf resumed>) = 5 [pid 331] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 330] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 331] <... bpf resumed>) = 0 [pid 330] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 331] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 331] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 330] <... bpf resumed>) = 6 [pid 330] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 327] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=327, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./6/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./6") = 0 [pid 295] mkdir("./7", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 332 attached , child_tidptr=0x555555cf9750) = 332 [pid 332] set_robust_list(0x555555cf9760, 24) = 0 [pid 332] chdir("./7") = 0 [pid 332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 332] setpgid(0, 0) = 0 [pid 332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 332] write(3, "1000", 4) = 4 [pid 332] close(3) = 0 [pid 332] symlink("/dev/binderfs", "./binderfs") = 0 [pid 332] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 332] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 331] <... bpf resumed>) = 7 [pid 330] <... bpf resumed>) = 7 [pid 329] <... bpf resumed>) = 7 [pid 328] +++ exited with 0 +++ [pid 332] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 332] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 331] exit_group(0 [pid 330] exit_group(0 [pid 329] exit_group(0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=328, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 332] <... bpf resumed>) = 0 [pid 332] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 331] <... exit_group resumed>) = ? [pid 330] <... exit_group resumed>) = ? [pid 329] <... exit_group resumed>) = ? [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 332] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16) = 7 [pid 332] exit_group(0) = ? [pid 332] +++ exited with 0 +++ [pid 330] +++ exited with 0 +++ [pid 294] <... restart_syscall resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=330, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=332, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... openat resumed>) = 3 [pid 295] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", [pid 296] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 296] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./7/binderfs", [pid 294] newfstatat(3, "", [pid 296] newfstatat(AT_FDCWD, "./5/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./7/binderfs" [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] unlink("./5/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 296] <... unlink resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, [pid 295] rmdir("./7" [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 294] umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] close(3 [pid 295] mkdir("./8", 0777 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... close resumed>) = 0 [pid 294] newfstatat(AT_FDCWD, "./5/binderfs", [pid 296] rmdir("./5" [pid 295] <... mkdir resumed>) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] unlink("./5/binderfs" [pid 296] mkdir("./6", 0777 [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./5" [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 333 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./6", 0777 [pid 296] <... mkdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 333 attached ./strace-static-x86_64: Process 334 attached ./strace-static-x86_64: Process 335 attached [pid 334] set_robust_list(0x555555cf9760, 24 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 334 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 335 [pid 335] set_robust_list(0x555555cf9760, 24 [pid 334] <... set_robust_list resumed>) = 0 [pid 334] chdir("./6" [pid 335] <... set_robust_list resumed>) = 0 [pid 334] <... chdir resumed>) = 0 [pid 334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 335] chdir("./6") = 0 [pid 334] setpgid(0, 0) = 0 [pid 335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 335] <... prctl resumed>) = 0 [pid 335] setpgid(0, 0 [pid 334] <... openat resumed>) = 3 [pid 334] write(3, "1000", 4) = 4 [pid 335] <... setpgid resumed>) = 0 [pid 334] close(3) = 0 [pid 334] symlink("/dev/binderfs", "./binderfs" [pid 333] set_robust_list(0x555555cf9760, 24) = 0 [pid 334] <... symlink resumed>) = 0 [pid 334] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 333] chdir("./8") = 0 [pid 333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 333] setpgid(0, 0) = 0 [pid 333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 333] write(3, "1000", 4) = 4 [pid 333] close(3) = 0 [pid 333] symlink("/dev/binderfs", "./binderfs" [pid 334] <... bpf resumed>) = 3 [pid 334] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 333] <... symlink resumed>) = 0 [pid 335] <... openat resumed>) = 3 [pid 335] write(3, "1000", 4) = 4 [pid 333] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 335] close(3) = 0 [pid 333] <... bpf resumed>) = 3 [pid 335] symlink("/dev/binderfs", "./binderfs" [pid 333] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 335] <... symlink resumed>) = 0 [pid 335] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 335] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 329] +++ exited with 0 +++ [pid 331] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=331, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=329, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] <... restart_syscall resumed>) = 0 [pid 293] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", [pid 292] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] getdents64(3, [pid 292] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... openat resumed>) = 3 [pid 293] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] newfstatat(3, "", [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] newfstatat(AT_FDCWD, "./6/binderfs", [pid 292] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] unlink("./6/binderfs" [pid 292] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] <... unlink resumed>) = 0 [pid 292] newfstatat(AT_FDCWD, "./6/binderfs", [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] unlink("./6/binderfs" [pid 293] close(3 [pid 292] <... unlink resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] getdents64(3, [pid 293] rmdir("./6" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./6" [pid 293] <... rmdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 293] mkdir("./7", 0777 [pid 292] mkdir("./7", 0777 [pid 293] <... mkdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 336 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 337 ./strace-static-x86_64: Process 336 attached [pid 336] set_robust_list(0x555555cf9760, 24./strace-static-x86_64: Process 337 attached [pid 337] set_robust_list(0x555555cf9760, 24) = 0 [pid 337] chdir("./7" [pid 336] <... set_robust_list resumed>) = 0 [pid 336] chdir("./7" [pid 337] <... chdir resumed>) = 0 [pid 337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 337] setpgid(0, 0) = 0 [pid 337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 336] <... chdir resumed>) = 0 [pid 337] <... openat resumed>) = 3 [pid 336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 337] write(3, "1000", 4) = 4 [pid 337] close(3 [pid 336] <... prctl resumed>) = 0 [pid 337] <... close resumed>) = 0 [pid 337] symlink("/dev/binderfs", "./binderfs" [pid 336] setpgid(0, 0) = 0 [pid 336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 336] write(3, "1000", 4 [pid 337] <... symlink resumed>) = 0 [pid 336] <... write resumed>) = 4 [pid 337] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 336] close(3) = 0 [pid 336] symlink("/dev/binderfs", "./binderfs") = 0 [pid 336] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 337] <... bpf resumed>) = 3 [pid 337] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 336] <... bpf resumed>) = 3 [pid 336] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 334] <... bpf resumed>) = 4 [pid 333] <... bpf resumed>) = 4 [pid 337] <... bpf resumed>) = 4 [pid 335] <... bpf resumed>) = 4 [pid 334] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 333] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 337] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 336] <... bpf resumed>) = 4 [pid 335] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 334] <... bpf resumed>) = 5 [pid 333] <... bpf resumed>) = 5 [pid 337] <... bpf resumed>) = 5 [pid 336] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 335] <... bpf resumed>) = 5 [pid 334] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 333] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 337] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 335] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 334] <... bpf resumed>) = 0 [pid 333] <... bpf resumed>) = 0 [pid 337] <... bpf resumed>) = 0 [pid 335] <... bpf resumed>) = 0 [pid 334] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 333] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 337] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 336] <... bpf resumed>) = 5 [pid 335] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 334] <... bpf resumed>) = 6 [pid 333] <... bpf resumed>) = 6 [pid 337] <... bpf resumed>) = 6 [pid 336] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 333] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 337] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 333] <... bpf resumed>) = 7 [pid 337] <... bpf resumed>) = 7 [pid 335] <... bpf resumed>) = 6 [pid 334] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 333] exit_group(0 [pid 337] exit_group(0 [pid 336] <... bpf resumed>) = 0 [pid 335] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 334] <... bpf resumed>) = 7 [pid 333] <... exit_group resumed>) = ? [pid 337] <... exit_group resumed>) = ? [pid 336] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 335] <... bpf resumed>) = 7 [pid 334] exit_group(0 [pid 333] +++ exited with 0 +++ [pid 337] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=333, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 335] exit_group(0 [pid 334] <... exit_group resumed>) = ? [pid 336] <... bpf resumed>) = 6 [pid 335] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=337, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 336] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] newfstatat(3, "", [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] getdents64(3, [pid 295] <... openat resumed>) = 3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] newfstatat(3, "", [pid 292] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] getdents64(3, [pid 292] newfstatat(AT_FDCWD, "./7/binderfs", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] unlink("./7/binderfs" [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... unlink resumed>) = 0 [pid 292] getdents64(3, [pid 295] newfstatat(AT_FDCWD, "./8/binderfs", [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] close(3 [pid 295] unlink("./8/binderfs" [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./7" [pid 295] <... unlink resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 295] getdents64(3, [pid 292] mkdir("./8", 0777 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 295] close(3 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... close resumed>) = 0 ./strace-static-x86_64: Process 338 attached [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 338 [pid 295] rmdir("./8" [pid 338] set_robust_list(0x555555cf9760, 24 [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./9", 0777 [pid 338] <... set_robust_list resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 338] chdir("./8"./strace-static-x86_64: Process 339 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 339 [pid 339] set_robust_list(0x555555cf9760, 24 [pid 338] <... chdir resumed>) = 0 [pid 339] <... set_robust_list resumed>) = 0 [pid 338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 339] chdir("./9") = 0 [pid 338] <... prctl resumed>) = 0 [pid 339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 338] setpgid(0, 0 [pid 339] <... prctl resumed>) = 0 [pid 338] <... setpgid resumed>) = 0 [pid 339] setpgid(0, 0 [pid 338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 339] <... setpgid resumed>) = 0 [pid 338] <... openat resumed>) = 3 [pid 339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 338] write(3, "1000", 4 [pid 339] <... openat resumed>) = 3 [pid 338] <... write resumed>) = 4 [pid 339] write(3, "1000", 4) = 4 [pid 339] close(3) = 0 [pid 339] symlink("/dev/binderfs", "./binderfs" [pid 338] close(3) = 0 [pid 338] symlink("/dev/binderfs", "./binderfs") = 0 [pid 338] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 339] <... symlink resumed>) = 0 [pid 336] <... bpf resumed>) = 7 [pid 336] exit_group(0 [pid 334] +++ exited with 0 +++ [pid 336] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=334, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 339] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 339] <... bpf resumed>) = 3 [pid 338] <... bpf resumed>) = 3 [pid 296] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 338] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 339] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./6/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./6") = 0 [pid 296] mkdir("./7", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 340 attached , child_tidptr=0x555555cf9750) = 340 [pid 340] set_robust_list(0x555555cf9760, 24) = 0 [pid 340] chdir("./7") = 0 [pid 340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 340] setpgid(0, 0) = 0 [pid 340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 340] write(3, "1000", 4) = 4 [pid 340] close(3) = 0 [pid 340] symlink("/dev/binderfs", "./binderfs") = 0 [pid 340] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 340] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 338] <... bpf resumed>) = 4 [pid 335] +++ exited with 0 +++ [pid 339] <... bpf resumed>) = 4 [pid 338] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 338] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 338] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 340] <... bpf resumed>) = 4 [pid 339] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 338] <... bpf resumed>) = 6 [pid 336] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=335, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 340] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 338] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16) = 7 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=336, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 338] exit_group(0) = ? [pid 340] <... bpf resumed>) = 5 [pid 339] <... bpf resumed>) = 5 [pid 338] +++ exited with 0 +++ [pid 294] <... restart_syscall resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=338, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", [pid 293] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] newfstatat(3, "", [pid 294] getdents64(3, [pid 292] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] getdents64(3, [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... openat resumed>) = 3 [pid 294] newfstatat(AT_FDCWD, "./6/binderfs", [pid 293] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(3, "", [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] unlink("./6/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 293] newfstatat(AT_FDCWD, "./7/binderfs", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 339] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] close(3 [pid 293] unlink("./7/binderfs" [pid 292] newfstatat(AT_FDCWD, "./8/binderfs", [pid 293] <... unlink resumed>) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... close resumed>) = 0 [pid 293] getdents64(3, [pid 292] unlink("./8/binderfs" [pid 294] rmdir("./6" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 293] close(3 [pid 292] getdents64(3, [pid 293] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] mkdir("./7", 0777 [pid 292] close(3 [pid 293] rmdir("./7" [pid 292] <... close resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] rmdir("./8" [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] mkdir("./8", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./9", 0777 [pid 293] <... mkdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 341 ./strace-static-x86_64: Process 341 attached [pid 341] set_robust_list(0x555555cf9760, 24) = 0 [pid 341] chdir("./7") = 0 [pid 341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 342 [pid 341] setpgid(0, 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 343 [pid 341] <... setpgid resumed>) = 0 [pid 341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 339] <... bpf resumed>) = 0 [pid 339] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 340] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 341] write(3, "1000", 4) = 4 [pid 341] close(3) = 0 [pid 341] symlink("/dev/binderfs", "./binderfs") = 0 [pid 341] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 339] <... bpf resumed>) = 6 [pid 340] <... bpf resumed>) = 0 [pid 339] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 341] <... bpf resumed>) = 3 [pid 340] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 341] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 343 attached [pid 343] set_robust_list(0x555555cf9760, 24) = 0 [pid 343] chdir("./8") = 0 ./strace-static-x86_64: Process 342 attached [pid 343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 342] set_robust_list(0x555555cf9760, 24 [pid 343] <... prctl resumed>) = 0 [pid 343] setpgid(0, 0 [pid 342] <... set_robust_list resumed>) = 0 [pid 342] chdir("./9" [pid 343] <... setpgid resumed>) = 0 [pid 343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 342] <... chdir resumed>) = 0 [pid 342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 342] setpgid(0, 0 [pid 343] write(3, "1000", 4 [pid 342] <... setpgid resumed>) = 0 [pid 343] <... write resumed>) = 4 [pid 343] close(3 [pid 342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 343] <... close resumed>) = 0 [pid 343] symlink("/dev/binderfs", "./binderfs" [pid 342] <... openat resumed>) = 3 [pid 343] <... symlink resumed>) = 0 [pid 342] write(3, "1000", 4) = 4 [pid 342] close(3) = 0 [pid 342] symlink("/dev/binderfs", "./binderfs" [pid 343] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 340] <... bpf resumed>) = 6 [pid 342] <... symlink resumed>) = 0 [pid 340] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 342] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 343] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 342] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 341] <... bpf resumed>) = 4 [pid 339] <... bpf resumed>) = 7 [pid 343] <... bpf resumed>) = 4 [pid 342] <... bpf resumed>) = 4 [pid 341] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 340] <... bpf resumed>) = 7 [pid 339] exit_group(0 [pid 343] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 342] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 341] <... bpf resumed>) = 5 [pid 343] <... bpf resumed>) = 5 [pid 342] <... bpf resumed>) = 5 [pid 341] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 340] exit_group(0 [pid 339] <... exit_group resumed>) = ? [pid 343] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 342] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 341] <... bpf resumed>) = 0 [pid 343] <... bpf resumed>) = 0 [pid 342] <... bpf resumed>) = 0 [pid 341] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 343] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 342] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 341] <... bpf resumed>) = 6 [pid 340] <... exit_group resumed>) = ? [pid 343] <... bpf resumed>) = 6 [pid 342] <... bpf resumed>) = 6 [pid 341] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 343] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 342] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 343] <... bpf resumed>) = 7 [pid 342] <... bpf resumed>) = 7 [pid 341] <... bpf resumed>) = 7 [pid 339] +++ exited with 0 +++ [pid 343] exit_group(0 [pid 342] exit_group(0 [pid 341] exit_group(0 [pid 340] +++ exited with 0 +++ [pid 343] <... exit_group resumed>) = ? [pid 342] <... exit_group resumed>) = ? [pid 341] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 343] +++ exited with 0 +++ [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... openat resumed>) = 3 [pid 295] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(3, "", [pid 295] <... openat resumed>) = 3 [pid 293] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] newfstatat(3, "", [pid 296] getdents64(3, [pid 293] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] getdents64(3, [pid 293] newfstatat(3, "", [pid 296] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] newfstatat(AT_FDCWD, "./7/binderfs", [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] newfstatat(AT_FDCWD, "./9/binderfs", [pid 296] unlink("./7/binderfs" [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... unlink resumed>) = 0 [pid 295] unlink("./9/binderfs" [pid 293] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] close(3 [pid 295] getdents64(3, [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... close resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] newfstatat(AT_FDCWD, "./8/binderfs", [pid 296] rmdir("./7" [pid 295] close(3 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 296] mkdir("./8", 0777 [pid 295] rmdir("./9" [pid 293] unlink("./8/binderfs" [pid 296] <... mkdir resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./10", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... unlink resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 344 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] close(3./strace-static-x86_64: Process 344 attached ) = 0 [pid 344] set_robust_list(0x555555cf9760, 24) = 0 [pid 344] chdir("./8") = 0 [pid 293] rmdir("./8" [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 345 [pid 344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 344] setpgid(0, 0) = 0 [pid 344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./9", 0777 [pid 344] <... openat resumed>) = 3 [pid 344] write(3, "1000", 4) = 4 [pid 344] close(3 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 344] <... close resumed>) = 0 ./strace-static-x86_64: Process 345 attached [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 346 [pid 344] symlink("/dev/binderfs", "./binderfs") = 0 [pid 344] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 345] set_robust_list(0x555555cf9760, 24) = 0 [pid 345] chdir("./10") = 0 [pid 345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 345] setpgid(0, 0) = 0 [pid 345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 345] write(3, "1000", 4) = 4 [pid 345] close(3 [pid 344] <... bpf resumed>) = 3 [pid 344] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 345] <... close resumed>) = 0 [pid 345] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 346 attached [pid 346] set_robust_list(0x555555cf9760, 24) = 0 [pid 345] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 346] chdir("./9") = 0 [pid 346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 346] setpgid(0, 0) = 0 [pid 346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 346] write(3, "1000", 4) = 4 [pid 346] close(3) = 0 [pid 346] symlink("/dev/binderfs", "./binderfs") = 0 [pid 346] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 345] <... bpf resumed>) = 3 [pid 345] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 346] <... bpf resumed>) = 3 [pid 346] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 342] +++ exited with 0 +++ [pid 341] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=341, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=342, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 292] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 292] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] newfstatat(AT_FDCWD, "./9/binderfs", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./7/binderfs", [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./9/binderfs" [pid 294] unlink("./7/binderfs" [pid 292] <... unlink resumed>) = 0 [pid 294] <... unlink resumed>) = 0 [pid 292] getdents64(3, [pid 294] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3 [pid 294] close(3) = 0 [pid 292] <... close resumed>) = 0 [pid 294] rmdir("./7" [pid 292] rmdir("./9" [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./8", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 292] mkdir("./10", 0777 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 347 ./strace-static-x86_64: Process 347 attached [pid 347] set_robust_list(0x555555cf9760, 24) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 348 [pid 347] chdir("./8") = 0 [pid 347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 347] setpgid(0, 0) = 0 [pid 347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 347] write(3, "1000", 4) = 4 [pid 347] close(3./strace-static-x86_64: Process 348 attached ) = 0 [pid 348] set_robust_list(0x555555cf9760, 24) = 0 [pid 348] chdir("./10") = 0 [pid 347] symlink("/dev/binderfs", "./binderfs" [pid 348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 348] setpgid(0, 0) = 0 [pid 347] <... symlink resumed>) = 0 [pid 348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 347] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 348] <... openat resumed>) = 3 [pid 348] write(3, "1000", 4) = 4 [pid 348] close(3) = 0 [pid 348] symlink("/dev/binderfs", "./binderfs") = 0 [pid 348] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 347] <... bpf resumed>) = 3 [pid 347] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 348] <... bpf resumed>) = 3 [pid 344] <... bpf resumed>) = 4 [pid 348] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 344] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 348] <... bpf resumed>) = 4 [pid 347] <... bpf resumed>) = 4 [pid 346] <... bpf resumed>) = 4 [pid 345] <... bpf resumed>) = 4 [pid 344] <... bpf resumed>) = 5 [pid 348] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 347] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 346] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 345] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 344] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 348] <... bpf resumed>) = 5 [pid 347] <... bpf resumed>) = 5 [pid 346] <... bpf resumed>) = 5 [pid 345] <... bpf resumed>) = 5 [pid 344] <... bpf resumed>) = 0 [pid 348] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 347] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 346] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 345] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 344] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 348] <... bpf resumed>) = 0 [pid 347] <... bpf resumed>) = 0 [pid 346] <... bpf resumed>) = 0 [pid 345] <... bpf resumed>) = 0 [pid 346] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 345] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 348] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 347] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 346] <... bpf resumed>) = 6 [pid 344] <... bpf resumed>) = 6 [pid 346] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 344] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 346] <... bpf resumed>) = 7 [pid 345] <... bpf resumed>) = 6 [pid 344] <... bpf resumed>) = 7 [pid 346] exit_group(0 [pid 345] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 344] exit_group(0 [pid 346] <... exit_group resumed>) = ? [pid 344] <... exit_group resumed>) = ? [pid 348] <... bpf resumed>) = 6 [pid 347] <... bpf resumed>) = 6 [pid 347] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 348] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 346] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./9/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./9") = 0 [pid 293] mkdir("./10", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 349 ./strace-static-x86_64: Process 349 attached [pid 349] set_robust_list(0x555555cf9760, 24) = 0 [pid 349] chdir("./10") = 0 [pid 349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 349] setpgid(0, 0) = 0 [pid 349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 349] write(3, "1000", 4) = 4 [pid 349] close(3) = 0 [pid 349] symlink("/dev/binderfs", "./binderfs") = 0 [pid 349] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 349] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 345] <... bpf resumed>) = 7 [pid 348] <... bpf resumed>) = 7 [pid 347] <... bpf resumed>) = 7 [pid 345] exit_group(0 [pid 344] +++ exited with 0 +++ [pid 348] exit_group(0 [pid 345] <... exit_group resumed>) = ? [pid 349] <... bpf resumed>) = 4 [pid 348] <... exit_group resumed>) = ? [pid 347] exit_group(0 [pid 345] +++ exited with 0 +++ [pid 349] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 347] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=344, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=345, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 295] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... restart_syscall resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... openat resumed>) = 3 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(3, "", [pid 296] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... openat resumed>) = 3 [pid 295] getdents64(3, [pid 296] newfstatat(3, "", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] getdents64(3, [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] newfstatat(AT_FDCWD, "./10/binderfs", [pid 296] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./8/binderfs", [pid 295] unlink("./10/binderfs") = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] getdents64(3, [pid 296] unlink("./8/binderfs" [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] close(3 [pid 296] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] rmdir("./10" [pid 296] close(3 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 295] mkdir("./11", 0777 [pid 296] rmdir("./8" [pid 349] <... bpf resumed>) = 5 [pid 295] <... mkdir resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] mkdir("./9", 0777./strace-static-x86_64: Process 350 attached [pid 350] set_robust_list(0x555555cf9760, 24) = 0 [pid 350] chdir("./11") = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 350 [pid 349] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 350] setpgid(0, 0) = 0 [pid 350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 349] <... bpf resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 351 [pid 350] <... openat resumed>) = 3 [pid 349] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 350] write(3, "1000", 4) = 4 [pid 350] close(3) = 0 [pid 350] symlink("/dev/binderfs", "./binderfs") = 0 [pid 350] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 349] <... bpf resumed>) = 6 [pid 349] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 350] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 351 attached [pid 351] set_robust_list(0x555555cf9760, 24 [pid 350] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 351] <... set_robust_list resumed>) = 0 [pid 351] chdir("./9") = 0 [pid 351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 351] setpgid(0, 0) = 0 [pid 351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 351] write(3, "1000", 4) = 4 [pid 351] close(3) = 0 [pid 351] symlink("/dev/binderfs", "./binderfs") = 0 [pid 351] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 351] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 348] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=348, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./10/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./10") = 0 [pid 292] mkdir("./11", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 352 ./strace-static-x86_64: Process 352 attached [pid 352] set_robust_list(0x555555cf9760, 24) = 0 [pid 352] chdir("./11") = 0 [pid 352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 352] setpgid(0, 0) = 0 [pid 352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 352] write(3, "1000", 4) = 4 [pid 352] close(3) = 0 [pid 352] symlink("/dev/binderfs", "./binderfs") = 0 [pid 352] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 352] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 349] <... bpf resumed>) = 7 [pid 351] <... bpf resumed>) = 4 [pid 350] <... bpf resumed>) = 4 [pid 349] exit_group(0 [pid 347] +++ exited with 0 +++ [pid 351] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 350] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 349] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=347, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 352] <... bpf resumed>) = 4 [pid 351] <... bpf resumed>) = 5 [pid 350] <... bpf resumed>) = 5 [pid 349] +++ exited with 0 +++ [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 352] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 351] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 350] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] <... restart_syscall resumed>) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=349, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 351] <... bpf resumed>) = 0 [pid 351] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 350] <... bpf resumed>) = 0 [pid 352] <... bpf resumed>) = 5 [pid 351] <... bpf resumed>) = 6 [pid 350] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW [pid 352] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 351] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 352] <... bpf resumed>) = 0 [pid 350] <... bpf resumed>) = 6 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW [pid 352] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 350] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] unlink("./8/binderfs") = 0 [pid 293] <... openat resumed>) = 3 [pid 294] getdents64(3, [pid 293] newfstatat(3, "", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 352] <... bpf resumed>) = 6 [pid 294] <... close resumed>) = 0 [pid 294] rmdir("./8" [pid 352] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] getdents64(3, [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./9", 0777) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 353 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./10/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 353 attached [pid 293] close(3) = 0 [pid 293] rmdir("./10") = 0 [pid 293] mkdir("./11", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 354 [pid 353] set_robust_list(0x555555cf9760, 24./strace-static-x86_64: Process 354 attached [pid 354] set_robust_list(0x555555cf9760, 24 [pid 353] <... set_robust_list resumed>) = 0 [pid 354] <... set_robust_list resumed>) = 0 [pid 354] chdir("./11") = 0 [pid 354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 354] setpgid(0, 0) = 0 [pid 354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 354] write(3, "1000", 4) = 4 [pid 354] close(3) = 0 [pid 354] symlink("/dev/binderfs", "./binderfs" [pid 353] chdir("./9" [pid 354] <... symlink resumed>) = 0 [pid 353] <... chdir resumed>) = 0 [pid 354] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 353] setpgid(0, 0) = 0 [pid 353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 353] write(3, "1000", 4) = 4 [pid 354] <... bpf resumed>) = 3 [pid 354] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 353] close(3) = 0 [pid 353] symlink("/dev/binderfs", "./binderfs") = 0 [pid 353] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 351] <... bpf resumed>) = 7 [pid 351] exit_group(0 [pid 350] <... bpf resumed>) = 7 [pid 352] <... bpf resumed>) = 7 [pid 351] <... exit_group resumed>) = ? [pid 352] exit_group(0 [pid 351] +++ exited with 0 +++ [pid 350] exit_group(0 [pid 352] <... exit_group resumed>) = ? [pid 350] <... exit_group resumed>) = ? [pid 354] <... bpf resumed>) = 4 [pid 353] <... bpf resumed>) = 3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=351, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 354] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 296] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 354] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 354] <... bpf resumed>) = 0 [pid 296] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 354] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 354] <... bpf resumed>) = 6 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 354] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 353] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 296] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./9/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./9") = 0 [pid 296] mkdir("./10", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 355 ./strace-static-x86_64: Process 355 attached [pid 355] set_robust_list(0x555555cf9760, 24) = 0 [pid 355] chdir("./10") = 0 [pid 355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 355] setpgid(0, 0) = 0 [pid 355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 355] write(3, "1000", 4) = 4 [pid 355] close(3) = 0 [pid 355] symlink("/dev/binderfs", "./binderfs") = 0 [pid 355] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 355] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 352] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./11/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./11") = 0 [pid 292] mkdir("./12", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 356 ./strace-static-x86_64: Process 356 attached [pid 356] set_robust_list(0x555555cf9760, 24) = 0 [pid 356] chdir("./12") = 0 [pid 356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 356] setpgid(0, 0) = 0 [pid 356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 356] write(3, "1000", 4) = 4 [pid 356] close(3) = 0 [pid 356] symlink("/dev/binderfs", "./binderfs") = 0 [pid 356] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 356] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 354] <... bpf resumed>) = 7 [pid 350] +++ exited with 0 +++ [pid 356] <... bpf resumed>) = 4 [pid 355] <... bpf resumed>) = 4 [pid 353] <... bpf resumed>) = 4 [pid 356] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 355] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 354] exit_group(0 [pid 356] <... bpf resumed>) = 5 [pid 355] <... bpf resumed>) = 5 [pid 353] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 354] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=350, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 356] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 355] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 353] <... bpf resumed>) = 5 [pid 356] <... bpf resumed>) = 0 [pid 356] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 355] <... bpf resumed>) = 0 [pid 354] +++ exited with 0 +++ [pid 353] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 356] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 355] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 353] <... bpf resumed>) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 353] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 355] <... bpf resumed>) = 6 [pid 353] <... bpf resumed>) = 6 [pid 355] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 353] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./11/binderfs", [pid 293] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... openat resumed>) = 3 [pid 295] unlink("./11/binderfs" [pid 293] newfstatat(3, "", [pid 295] <... unlink resumed>) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 293] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] close(3 [pid 293] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... close resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] rmdir("./11" [pid 293] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./11/binderfs" [pid 295] <... rmdir resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] mkdir("./12", 0777 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./11" [pid 295] <... mkdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] mkdir("./12", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 357 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 357 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 358 ./strace-static-x86_64: Process 358 attached [pid 357] set_robust_list(0x555555cf9760, 24 [pid 358] set_robust_list(0x555555cf9760, 24) = 0 [pid 358] chdir("./12" [pid 357] <... set_robust_list resumed>) = 0 [pid 358] <... chdir resumed>) = 0 [pid 358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 358] setpgid(0, 0) = 0 [pid 357] chdir("./12" [pid 358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 357] <... chdir resumed>) = 0 [pid 358] write(3, "1000", 4 [pid 357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 358] <... write resumed>) = 4 [pid 358] close(3) = 0 [pid 358] symlink("/dev/binderfs", "./binderfs") = 0 [pid 357] <... prctl resumed>) = 0 [pid 358] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 357] setpgid(0, 0 [pid 358] <... bpf resumed>) = 3 [pid 357] <... setpgid resumed>) = 0 [pid 357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 358] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 357] <... openat resumed>) = 3 [pid 357] write(3, "1000", 4) = 4 [pid 357] close(3) = 0 [pid 357] symlink("/dev/binderfs", "./binderfs") = 0 [pid 357] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 357] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 356] <... bpf resumed>) = 7 [pid 358] <... bpf resumed>) = 4 [pid 357] <... bpf resumed>) = 4 [pid 356] exit_group(0 [pid 355] <... bpf resumed>) = 7 [pid 353] <... bpf resumed>) = 7 [pid 358] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 357] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 356] <... exit_group resumed>) = ? [pid 355] exit_group(0 [pid 353] exit_group(0 [pid 358] <... bpf resumed>) = 5 [pid 357] <... bpf resumed>) = 5 [pid 356] +++ exited with 0 +++ [pid 355] <... exit_group resumed>) = ? [pid 353] <... exit_group resumed>) = ? [pid 358] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 357] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 357] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 358] <... bpf resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=356, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 357] <... bpf resumed>) = 6 [pid 292] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 357] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./12/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./12") = 0 [pid 292] mkdir("./13", 0777) = 0 [pid 358] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 359 attached , child_tidptr=0x555555cf9750) = 359 [pid 359] set_robust_list(0x555555cf9760, 24) = 0 [pid 359] chdir("./13") = 0 [pid 359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 359] setpgid(0, 0) = 0 [pid 359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 358] <... bpf resumed>) = 6 [pid 359] <... openat resumed>) = 3 [pid 359] write(3, "1000", 4 [pid 358] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 359] <... write resumed>) = 4 [pid 359] close(3) = 0 [pid 359] symlink("/dev/binderfs", "./binderfs") = 0 [pid 359] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 359] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 355] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=355, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./10/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./10") = 0 [pid 296] mkdir("./11", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 360 ./strace-static-x86_64: Process 360 attached [pid 360] set_robust_list(0x555555cf9760, 24) = 0 [pid 360] chdir("./11") = 0 [pid 360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 360] setpgid(0, 0) = 0 [pid 360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 360] write(3, "1000", 4) = 4 [pid 360] close(3) = 0 [pid 360] symlink("/dev/binderfs", "./binderfs") = 0 [pid 360] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 360] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 359] <... bpf resumed>) = 4 [pid 358] <... bpf resumed>) = 7 [pid 357] <... bpf resumed>) = 7 [pid 359] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 358] exit_group(0 [pid 353] +++ exited with 0 +++ [pid 359] <... bpf resumed>) = 5 [pid 358] <... exit_group resumed>) = ? [pid 357] exit_group(0 [pid 360] <... bpf resumed>) = 4 [pid 359] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 357] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=353, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 359] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 360] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 359] <... bpf resumed>) = 6 [pid 294] umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW [pid 359] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 360] <... bpf resumed>) = 5 [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 360] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 360] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./9/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./9") = 0 [pid 360] <... bpf resumed>) = 6 [pid 294] mkdir("./10", 0777 [pid 360] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 361 ./strace-static-x86_64: Process 361 attached [pid 361] set_robust_list(0x555555cf9760, 24) = 0 [pid 361] chdir("./10") = 0 [pid 361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 361] setpgid(0, 0) = 0 [pid 361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 361] write(3, "1000", 4) = 4 [pid 361] close(3) = 0 [pid 361] symlink("/dev/binderfs", "./binderfs") = 0 [pid 361] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 361] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 358] +++ exited with 0 +++ [pid 357] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=357, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 295] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 295] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 293] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 293] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./12/binderfs", [pid 293] newfstatat(AT_FDCWD, "./12/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./12/binderfs" [pid 293] unlink("./12/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 293] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 293] close(3 [pid 295] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 295] rmdir("./12" [pid 293] rmdir("./12" [pid 295] <... rmdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 295] mkdir("./13", 0777 [pid 293] mkdir("./13", 0777 [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 362 ./strace-static-x86_64: Process 362 attached [pid 362] set_robust_list(0x555555cf9760, 24) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 363 [pid 362] chdir("./13"./strace-static-x86_64: Process 363 attached ) = 0 [pid 363] set_robust_list(0x555555cf9760, 24 [pid 362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 362] setpgid(0, 0) = 0 [pid 363] <... set_robust_list resumed>) = 0 [pid 362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 363] chdir("./13" [pid 362] <... openat resumed>) = 3 [pid 363] <... chdir resumed>) = 0 [pid 362] write(3, "1000", 4 [pid 363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 363] setpgid(0, 0) = 0 [pid 362] <... write resumed>) = 4 [pid 362] close(3 [pid 363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 362] <... close resumed>) = 0 [pid 362] symlink("/dev/binderfs", "./binderfs" [pid 363] <... openat resumed>) = 3 [pid 363] write(3, "1000", 4 [pid 362] <... symlink resumed>) = 0 [pid 362] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 363] <... write resumed>) = 4 [pid 363] close(3) = 0 [pid 363] symlink("/dev/binderfs", "./binderfs") = 0 [pid 363] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 362] <... bpf resumed>) = 3 [pid 362] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 363] <... bpf resumed>) = 3 [pid 359] <... bpf resumed>) = 7 [pid 363] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 362] <... bpf resumed>) = 4 [pid 360] <... bpf resumed>) = 7 [pid 363] <... bpf resumed>) = 4 [pid 362] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 361] <... bpf resumed>) = 4 [pid 359] exit_group(0 [pid 363] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 362] <... bpf resumed>) = 5 [pid 361] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 360] exit_group(0 [pid 359] <... exit_group resumed>) = ? [pid 363] <... bpf resumed>) = 5 [pid 362] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 361] <... bpf resumed>) = 5 [pid 362] <... bpf resumed>) = 0 [pid 362] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 363] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 362] <... bpf resumed>) = 6 [pid 361] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 360] <... exit_group resumed>) = ? [pid 363] <... bpf resumed>) = 0 [pid 362] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 363] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 361] <... bpf resumed>) = 0 [pid 361] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 363] <... bpf resumed>) = 6 [pid 361] <... bpf resumed>) = 6 [pid 363] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 361] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 362] <... bpf resumed>) = 7 [pid 359] +++ exited with 0 +++ [pid 362] exit_group(0) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=359, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./13/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./13") = 0 [pid 292] mkdir("./14", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 365 ./strace-static-x86_64: Process 365 attached [pid 365] set_robust_list(0x555555cf9760, 24) = 0 [pid 365] chdir("./14") = 0 [pid 365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 365] setpgid(0, 0) = 0 [pid 365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 365] write(3, "1000", 4) = 4 [pid 365] close(3) = 0 [pid 365] symlink("/dev/binderfs", "./binderfs") = 0 [pid 365] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 365] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 363] <... bpf resumed>) = 7 [pid 361] <... bpf resumed>) = 7 [pid 360] +++ exited with 0 +++ [pid 362] +++ exited with 0 +++ [pid 361] exit_group(0 [pid 363] exit_group(0 [pid 361] <... exit_group resumed>) = ? [pid 363] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=360, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./11/binderfs", [pid 295] newfstatat(AT_FDCWD, "./13/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./11/binderfs" [pid 295] unlink("./13/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 295] close(3 [pid 296] <... close resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 296] rmdir("./11" [pid 295] rmdir("./13" [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./12", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./14", 0777 [pid 296] <... mkdir resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 366 attached [pid 366] set_robust_list(0x555555cf9760, 24) = 0 [pid 366] chdir("./12") = 0 [pid 366] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 366 [pid 366] <... prctl resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 367 [pid 366] setpgid(0, 0) = 0 [pid 366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 366] write(3, "1000", 4) = 4 [pid 366] close(3) = 0 [pid 366] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 367 attached [pid 367] set_robust_list(0x555555cf9760, 24) = 0 [pid 367] chdir("./14") = 0 [pid 367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 367] setpgid(0, 0) = 0 [pid 367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 367] write(3, "1000", 4 [pid 366] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 367] <... write resumed>) = 4 [pid 367] close(3) = 0 [pid 367] symlink("/dev/binderfs", "./binderfs") = 0 [pid 367] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 366] <... bpf resumed>) = 3 [pid 367] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 366] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 365] <... bpf resumed>) = 4 [pid 361] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./10/binderfs") = 0 [pid 294] getdents64(3, [pid 365] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./10") = 0 [pid 294] mkdir("./11", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 368 ./strace-static-x86_64: Process 368 attached [pid 368] set_robust_list(0x555555cf9760, 24) = 0 [pid 368] chdir("./11") = 0 [pid 368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 368] setpgid(0, 0) = 0 [pid 365] <... bpf resumed>) = 5 [pid 368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 365] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 365] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 368] <... openat resumed>) = 3 [pid 368] write(3, "1000", 4) = 4 [pid 368] close(3) = 0 [pid 368] symlink("/dev/binderfs", "./binderfs") = 0 [pid 365] <... bpf resumed>) = 6 [pid 368] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 365] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 368] <... bpf resumed>) = 3 [pid 368] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 367] <... bpf resumed>) = 4 [pid 366] <... bpf resumed>) = 4 [pid 363] +++ exited with 0 +++ [pid 367] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 365] <... bpf resumed>) = 7 [pid 366] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 367] <... bpf resumed>) = 5 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 368] <... bpf resumed>) = 4 [pid 368] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 367] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 366] <... bpf resumed>) = 5 [pid 365] exit_group(0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 367] <... bpf resumed>) = 0 [pid 366] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] <... restart_syscall resumed>) = 0 [pid 367] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 366] <... bpf resumed>) = 0 [pid 365] <... exit_group resumed>) = ? [pid 368] <... bpf resumed>) = 5 [pid 368] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 368] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 367] <... bpf resumed>) = 6 [pid 366] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 367] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 368] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16) = 7 [pid 367] <... bpf resumed>) = 7 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 368] exit_group(0 [pid 367] exit_group(0 [pid 293] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 368] <... exit_group resumed>) = ? [pid 367] <... exit_group resumed>) = ? [pid 293] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./13/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./13" [pid 366] <... bpf resumed>) = 6 [pid 368] +++ exited with 0 +++ [pid 367] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 366] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... rmdir resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=368, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] mkdir("./14", 0777) = 0 [pid 295] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW [pid 366] <... bpf resumed>) = 7 [pid 295] newfstatat(3, "", ./strace-static-x86_64: Process 369 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 369 [pid 366] exit_group(0 [pid 295] getdents64(3, [pid 294] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 369] set_robust_list(0x555555cf9760, 24 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 366] <... exit_group resumed>) = ? [pid 295] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... openat resumed>) = 3 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(3, "", [pid 295] newfstatat(AT_FDCWD, "./14/binderfs", [pid 369] <... set_robust_list resumed>) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./14/binderfs" [pid 294] getdents64(3, [pid 369] chdir("./14" [pid 295] <... unlink resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] getdents64(3, [pid 294] umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] close(3 [pid 294] newfstatat(AT_FDCWD, "./11/binderfs", [pid 295] <... close resumed>) = 0 [pid 369] <... chdir resumed>) = 0 [pid 295] rmdir("./14" [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 369] setpgid(0, 0) = 0 [pid 369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 295] <... rmdir resumed>) = 0 [pid 294] unlink("./11/binderfs" [pid 295] mkdir("./15", 0777 [pid 369] <... openat resumed>) = 3 [pid 294] <... unlink resumed>) = 0 [pid 369] write(3, "1000", 4) = 4 [pid 369] close(3) = 0 [pid 369] symlink("/dev/binderfs", "./binderfs") = 0 [pid 295] <... mkdir resumed>) = 0 [pid 294] getdents64(3, [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 369] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 294] close(3 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 370 [pid 294] <... close resumed>) = 0 [pid 369] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 294] rmdir("./11" [pid 369] <... bpf resumed>) = 4 [pid 369] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 369] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 369] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./12", 0777 [pid 369] <... bpf resumed>) = 6 [pid 366] +++ exited with 0 +++ [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 369] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=366, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 370 attached [pid 370] set_robust_list(0x555555cf9760, 24) = 0 [pid 370] chdir("./15" [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 370] <... chdir resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 371 [pid 370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 370] setpgid(0, 0) = 0 [pid 370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 371 attached [pid 371] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... restart_syscall resumed>) = 0 [pid 296] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 371] chdir("./12" [pid 296] <... openat resumed>) = 3 [pid 370] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 371] <... chdir resumed>) = 0 [pid 370] write(3, "1000", 4 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] getdents64(3, [pid 370] <... write resumed>) = 4 [pid 371] setpgid(0, 0 [pid 369] <... bpf resumed>) = 7 [pid 365] +++ exited with 0 +++ [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 370] close(3 [pid 296] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 370] <... close resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=365, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 370] symlink("/dev/binderfs", "./binderfs" [pid 296] newfstatat(AT_FDCWD, "./12/binderfs", [pid 369] exit_group(0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./12/binderfs" [pid 292] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 369] <... exit_group resumed>) = ? [pid 371] <... setpgid resumed>) = 0 [pid 370] <... symlink resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 369] +++ exited with 0 +++ [pid 296] getdents64(3, [pid 292] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=369, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] <... openat resumed>) = 3 [pid 370] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] close(3 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 292] newfstatat(3, "", [pid 371] <... openat resumed>) = 3 [pid 296] <... close resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] rmdir("./12" [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... rmdir resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 371] write(3, "1000", 4 [pid 296] mkdir("./13", 0777 [pid 293] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] newfstatat(AT_FDCWD, "./14/binderfs", [pid 293] <... openat resumed>) = 3 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] newfstatat(3, "", [pid 292] unlink("./14/binderfs" [pid 371] <... write resumed>) = 4 [pid 296] <... mkdir resumed>) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... unlink resumed>) = 0 [pid 371] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] getdents64(3, [pid 292] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 371] <... close resumed>) = 0 [pid 293] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] close(3 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 372 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... close resumed>) = 0 [pid 371] symlink("/dev/binderfs", "./binderfs" [pid 293] newfstatat(AT_FDCWD, "./14/binderfs", [pid 292] rmdir("./14" [pid 371] <... symlink resumed>) = 0 [pid 370] <... bpf resumed>) = 3 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 371] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] unlink("./14/binderfs" [pid 292] mkdir("./15", 0777 [pid 370] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 372 attached [pid 293] <... unlink resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 371] <... bpf resumed>) = 3 [pid 293] getdents64(3, [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 372] set_robust_list(0x555555cf9760, 24 [pid 371] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3./strace-static-x86_64: Process 373 attached [pid 372] <... set_robust_list resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 373 [pid 293] rmdir("./14" [pid 372] chdir("./13" [pid 373] set_robust_list(0x555555cf9760, 24 [pid 293] <... rmdir resumed>) = 0 [pid 372] <... chdir resumed>) = 0 [pid 293] mkdir("./15", 0777 [pid 373] <... set_robust_list resumed>) = 0 [pid 373] chdir("./15") = 0 [pid 373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 373] setpgid(0, 0 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 373] <... setpgid resumed>) = 0 [pid 373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 373] write(3, "1000", 4) = 4 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 374 [pid 373] close(3) = 0 [pid 373] symlink("/dev/binderfs", "./binderfs") = 0 [pid 372] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 374 attached [pid 373] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 372] <... prctl resumed>) = 0 [pid 374] set_robust_list(0x555555cf9760, 24) = 0 [pid 372] setpgid(0, 0 [pid 374] chdir("./15" [pid 373] <... bpf resumed>) = 3 [pid 372] <... setpgid resumed>) = 0 [pid 374] <... chdir resumed>) = 0 [pid 374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 373] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 374] setpgid(0, 0) = 0 [pid 374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 372] <... openat resumed>) = 3 [pid 374] <... openat resumed>) = 3 [pid 372] write(3, "1000", 4 [pid 374] write(3, "1000", 4) = 4 [pid 374] close(3) = 0 [pid 374] symlink("/dev/binderfs", "./binderfs") = 0 [pid 372] <... write resumed>) = 4 [pid 374] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 372] close(3 [pid 374] <... bpf resumed>) = 3 [pid 372] <... close resumed>) = 0 [pid 372] symlink("/dev/binderfs", "./binderfs" [pid 374] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 372] <... symlink resumed>) = 0 [pid 372] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 372] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 370] <... bpf resumed>) = 4 [pid 373] <... bpf resumed>) = 4 [pid 371] <... bpf resumed>) = 4 [pid 370] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 374] <... bpf resumed>) = 4 [pid 373] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 372] <... bpf resumed>) = 4 [pid 371] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 370] <... bpf resumed>) = 5 [pid 374] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 373] <... bpf resumed>) = 5 [pid 372] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 371] <... bpf resumed>) = 5 [pid 370] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 374] <... bpf resumed>) = 5 [pid 373] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 372] <... bpf resumed>) = 5 [pid 371] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 370] <... bpf resumed>) = 0 [pid 373] <... bpf resumed>) = 0 [pid 372] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 371] <... bpf resumed>) = 0 [pid 370] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 374] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 373] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 372] <... bpf resumed>) = 0 [pid 371] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 370] <... bpf resumed>) = 6 [pid 374] <... bpf resumed>) = 0 [pid 373] <... bpf resumed>) = 6 [pid 372] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 370] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 373] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 370] <... bpf resumed>) = 7 [pid 371] <... bpf resumed>) = 6 [pid 373] <... bpf resumed>) = 7 [pid 371] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 370] exit_group(0 [pid 373] exit_group(0 [pid 372] <... bpf resumed>) = 6 [pid 371] <... bpf resumed>) = 7 [pid 370] <... exit_group resumed>) = ? [pid 374] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 373] <... exit_group resumed>) = ? [pid 372] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 371] exit_group(0 [pid 370] +++ exited with 0 +++ [pid 374] <... bpf resumed>) = 6 [pid 371] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=370, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 374] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./15/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./15") = 0 [pid 295] mkdir("./16", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 375 ./strace-static-x86_64: Process 375 attached [pid 375] set_robust_list(0x555555cf9760, 24) = 0 [pid 375] chdir("./16") = 0 [pid 375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 375] setpgid(0, 0) = 0 [pid 375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 375] write(3, "1000", 4) = 4 [pid 375] close(3) = 0 [pid 375] symlink("/dev/binderfs", "./binderfs") = 0 [pid 375] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 375] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 373] +++ exited with 0 +++ [pid 372] <... bpf resumed>) = 7 [pid 372] exit_group(0) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./15/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./15") = 0 [pid 292] mkdir("./16", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 376 ./strace-static-x86_64: Process 376 attached [pid 376] set_robust_list(0x555555cf9760, 24) = 0 [pid 376] chdir("./16") = 0 [pid 376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 376] setpgid(0, 0) = 0 [pid 376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 376] write(3, "1000", 4) = 4 [pid 376] close(3) = 0 [pid 376] symlink("/dev/binderfs", "./binderfs") = 0 [pid 376] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 376] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 375] <... bpf resumed>) = 4 [pid 374] <... bpf resumed>) = 7 [pid 371] +++ exited with 0 +++ [pid 375] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 374] exit_group(0 [pid 375] <... bpf resumed>) = 5 [pid 374] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=371, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 375] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 375] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... restart_syscall resumed>) = 0 [pid 375] <... bpf resumed>) = 6 [pid 375] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./12/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./12") = 0 [pid 294] mkdir("./13", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 377 ./strace-static-x86_64: Process 377 attached [pid 377] set_robust_list(0x555555cf9760, 24) = 0 [pid 377] chdir("./13") = 0 [pid 377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 377] setpgid(0, 0) = 0 [pid 377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 377] write(3, "1000", 4) = 4 [pid 377] close(3) = 0 [pid 377] symlink("/dev/binderfs", "./binderfs") = 0 [pid 377] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 377] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 376] <... bpf resumed>) = 4 [pid 372] +++ exited with 0 +++ [pid 376] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 376] <... bpf resumed>) = 5 [pid 376] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 376] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 376] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./13/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./13") = 0 [pid 296] mkdir("./14", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 378 ./strace-static-x86_64: Process 378 attached [pid 378] set_robust_list(0x555555cf9760, 24) = 0 [pid 378] chdir("./14") = 0 [pid 378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 378] setpgid(0, 0) = 0 [pid 378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 378] write(3, "1000", 4) = 4 [pid 378] close(3) = 0 [pid 378] symlink("/dev/binderfs", "./binderfs") = 0 [pid 378] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 378] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 375] <... bpf resumed>) = 7 [pid 375] exit_group(0 [pid 374] +++ exited with 0 +++ [pid 375] <... exit_group resumed>) = ? [pid 378] <... bpf resumed>) = 4 [pid 377] <... bpf resumed>) = 4 [pid 376] <... bpf resumed>) = 7 [pid 376] exit_group(0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=374, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 377] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 376] <... exit_group resumed>) = ? [pid 378] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 377] <... bpf resumed>) = 5 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 377] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 377] <... bpf resumed>) = 0 [pid 377] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] <... openat resumed>) = 3 [pid 377] <... bpf resumed>) = 6 [pid 293] newfstatat(3, "", [pid 377] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 378] <... bpf resumed>) = 5 [pid 293] newfstatat(AT_FDCWD, "./15/binderfs", [pid 378] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./15/binderfs" [pid 378] <... bpf resumed>) = 0 [pid 378] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./15") = 0 [pid 293] mkdir("./16", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 379 ./strace-static-x86_64: Process 379 attached [pid 379] set_robust_list(0x555555cf9760, 24) = 0 [pid 379] chdir("./16" [pid 378] <... bpf resumed>) = 6 [pid 379] <... chdir resumed>) = 0 [pid 379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 379] setpgid(0, 0) = 0 [pid 379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 379] write(3, "1000", 4 [pid 378] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 379] <... write resumed>) = 4 [pid 379] close(3) = 0 [pid 379] symlink("/dev/binderfs", "./binderfs") = 0 [pid 379] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 379] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 376] +++ exited with 0 +++ [pid 375] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 292] <... restart_syscall resumed>) = 0 [pid 292] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... restart_syscall resumed>) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] getdents64(3, [pid 295] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] unlink("./16/binderfs" [pid 292] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] newfstatat(AT_FDCWD, "./16/binderfs", [pid 295] close(3) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] rmdir("./16" [pid 292] unlink("./16/binderfs" [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./17", 0777) = 0 [pid 292] <... unlink resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 380 [pid 292] close(3) = 0 [pid 292] rmdir("./16") = 0 ./strace-static-x86_64: Process 380 attached [pid 292] mkdir("./17", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 381 attached , child_tidptr=0x555555cf9750) = 381 [pid 381] set_robust_list(0x555555cf9760, 24) = 0 [pid 381] chdir("./17" [pid 380] set_robust_list(0x555555cf9760, 24 [pid 381] <... chdir resumed>) = 0 [pid 380] <... set_robust_list resumed>) = 0 [pid 381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 381] setpgid(0, 0) = 0 [pid 381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 380] chdir("./17" [pid 381] <... openat resumed>) = 3 [pid 380] <... chdir resumed>) = 0 [pid 381] write(3, "1000", 4 [pid 380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 381] <... write resumed>) = 4 [pid 380] <... prctl resumed>) = 0 [pid 381] close(3) = 0 [pid 381] symlink("/dev/binderfs", "./binderfs") = 0 [pid 380] setpgid(0, 0 [pid 381] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 380] <... setpgid resumed>) = 0 [pid 380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 380] write(3, "1000", 4 [pid 381] <... bpf resumed>) = 3 [pid 381] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 380] <... write resumed>) = 4 [pid 380] close(3) = 0 [pid 380] symlink("/dev/binderfs", "./binderfs") = 0 [pid 380] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 380] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 378] <... bpf resumed>) = 7 [pid 377] <... bpf resumed>) = 7 [pid 381] <... bpf resumed>) = 4 [pid 379] <... bpf resumed>) = 4 [pid 378] exit_group(0 [pid 377] exit_group(0 [pid 381] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 379] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 378] <... exit_group resumed>) = ? [pid 377] <... exit_group resumed>) = ? [pid 381] <... bpf resumed>) = 5 [pid 380] <... bpf resumed>) = 4 [pid 379] <... bpf resumed>) = 5 [pid 381] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 379] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 381] <... bpf resumed>) = 0 [pid 379] <... bpf resumed>) = 0 [pid 381] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 379] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 381] <... bpf resumed>) = 6 [pid 380] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 379] <... bpf resumed>) = 6 [pid 381] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 379] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 380] <... bpf resumed>) = 5 [pid 380] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 380] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 380] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 378] +++ exited with 0 +++ [pid 377] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=378, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=377, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 296] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(3, "", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] getdents64(3, [pid 294] <... openat resumed>) = 3 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] newfstatat(3, "", [pid 296] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] getdents64(3, [pid 296] newfstatat(AT_FDCWD, "./14/binderfs", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] unlink("./14/binderfs" [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... unlink resumed>) = 0 [pid 294] newfstatat(AT_FDCWD, "./13/binderfs", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] unlink("./13/binderfs" [pid 296] close(3 [pid 294] <... unlink resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 294] getdents64(3, [pid 296] rmdir("./14" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 294] close(3 [pid 296] mkdir("./15", 0777 [pid 294] <... close resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] rmdir("./13" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./14", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 382 ./strace-static-x86_64: Process 382 attached [pid 382] set_robust_list(0x555555cf9760, 24) = 0 [pid 382] chdir("./15" [pid 294] <... mkdir resumed>) = 0 [pid 382] <... chdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 382] setpgid(0, 0) = 0 [pid 382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 383 [pid 382] write(3, "1000", 4) = 4 [pid 382] close(3) = 0 [pid 382] symlink("/dev/binderfs", "./binderfs") = 0 [pid 382] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 382] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 383 attached [pid 383] set_robust_list(0x555555cf9760, 24) = 0 [pid 383] chdir("./14") = 0 [pid 383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 383] setpgid(0, 0) = 0 [pid 383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 383] write(3, "1000", 4) = 4 [pid 383] close(3) = 0 [pid 383] symlink("/dev/binderfs", "./binderfs") = 0 [pid 383] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 383] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 379] <... bpf resumed>) = 7 [pid 382] <... bpf resumed>) = 4 [pid 381] <... bpf resumed>) = 7 [pid 380] <... bpf resumed>) = 7 [pid 379] exit_group(0 [pid 383] <... bpf resumed>) = 4 [pid 382] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 381] exit_group(0 [pid 380] exit_group(0 [pid 379] <... exit_group resumed>) = ? [pid 383] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 382] <... bpf resumed>) = 5 [pid 381] <... exit_group resumed>) = ? [pid 380] <... exit_group resumed>) = ? [pid 379] +++ exited with 0 +++ [pid 382] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=379, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 382] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 383] <... bpf resumed>) = 5 [pid 382] <... bpf resumed>) = 6 [pid 382] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 383] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 383] <... bpf resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 383] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./16/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./16" [pid 383] <... bpf resumed>) = 6 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./17", 0777 [pid 383] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 384 ./strace-static-x86_64: Process 384 attached [pid 384] set_robust_list(0x555555cf9760, 24) = 0 [pid 384] chdir("./17") = 0 [pid 384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 384] setpgid(0, 0) = 0 [pid 384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 384] write(3, "1000", 4) = 4 [pid 384] close(3) = 0 [pid 384] symlink("/dev/binderfs", "./binderfs") = 0 [pid 384] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 384] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 381] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=381, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./17/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./17") = 0 [pid 292] mkdir("./18", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 385 ./strace-static-x86_64: Process 385 attached [pid 385] set_robust_list(0x555555cf9760, 24) = 0 [pid 385] chdir("./18") = 0 [pid 385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 385] setpgid(0, 0) = 0 [pid 385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 385] write(3, "1000", 4) = 4 [pid 385] close(3) = 0 [pid 385] symlink("/dev/binderfs", "./binderfs") = 0 [pid 385] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 385] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 382] <... bpf resumed>) = 7 [pid 384] <... bpf resumed>) = 4 [pid 383] <... bpf resumed>) = 7 [pid 382] exit_group(0 [pid 380] +++ exited with 0 +++ [pid 385] <... bpf resumed>) = 4 [pid 384] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 383] exit_group(0 [pid 382] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=380, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 385] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 384] <... bpf resumed>) = 5 [pid 383] <... exit_group resumed>) = ? [pid 385] <... bpf resumed>) = 5 [pid 385] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 384] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 385] <... bpf resumed>) = 0 [pid 384] <... bpf resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 385] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 384] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 385] <... bpf resumed>) = 6 [pid 384] <... bpf resumed>) = 6 [pid 295] <... openat resumed>) = 3 [pid 385] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 384] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./17/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./17") = 0 [pid 295] mkdir("./18", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 386 ./strace-static-x86_64: Process 386 attached [pid 386] set_robust_list(0x555555cf9760, 24) = 0 [pid 386] chdir("./18") = 0 [pid 386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 386] setpgid(0, 0) = 0 [pid 386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 386] write(3, "1000", 4) = 4 [pid 386] close(3) = 0 [pid 386] symlink("/dev/binderfs", "./binderfs") = 0 [pid 386] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 386] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 383] +++ exited with 0 +++ [pid 382] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=383, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 296] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 296] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(AT_FDCWD, "./15/binderfs", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] newfstatat(AT_FDCWD, "./14/binderfs", [pid 296] unlink("./15/binderfs" [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] unlink("./14/binderfs" [pid 296] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 294] close(3 [pid 296] <... close resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 296] rmdir("./15" [pid 294] rmdir("./14" [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./16", 0777 [pid 294] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] mkdir("./15", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... mkdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 387 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 387 attached [pid 387] set_robust_list(0x555555cf9760, 24) = 0 [pid 387] chdir("./16") = 0 [pid 387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 388 [pid 387] <... prctl resumed>) = 0 [pid 387] setpgid(0, 0) = 0 [pid 387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 387] write(3, "1000", 4) = 4 [pid 387] close(3) = 0 [pid 387] symlink("/dev/binderfs", "./binderfs") = 0 [pid 387] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 387] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 388 attached [pid 388] set_robust_list(0x555555cf9760, 24) = 0 [pid 388] chdir("./15") = 0 [pid 388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 388] setpgid(0, 0) = 0 [pid 388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 388] write(3, "1000", 4) = 4 [pid 388] close(3) = 0 [pid 388] symlink("/dev/binderfs", "./binderfs") = 0 [pid 388] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 388] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 384] <... bpf resumed>) = 7 [pid 388] <... bpf resumed>) = 4 [pid 387] <... bpf resumed>) = 4 [pid 386] <... bpf resumed>) = 4 [pid 385] <... bpf resumed>) = 7 [pid 384] exit_group(0 [pid 388] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 387] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 386] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 385] exit_group(0 [pid 384] <... exit_group resumed>) = ? [pid 388] <... bpf resumed>) = 5 [pid 387] <... bpf resumed>) = 5 [pid 385] <... exit_group resumed>) = ? [pid 388] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 387] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 388] <... bpf resumed>) = 0 [pid 387] <... bpf resumed>) = 0 [pid 388] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 387] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 388] <... bpf resumed>) = 6 [pid 387] <... bpf resumed>) = 6 [pid 386] <... bpf resumed>) = 5 [pid 388] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 387] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 386] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 386] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 386] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 385] +++ exited with 0 +++ [pid 384] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=384, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=385, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 293] newfstatat(3, "", [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 293] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./18/binderfs", [pid 293] newfstatat(AT_FDCWD, "./17/binderfs", [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./18/binderfs" [pid 293] unlink("./17/binderfs" [pid 292] <... unlink resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 292] getdents64(3, [pid 293] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3 [pid 293] close(3 [pid 292] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] rmdir("./18" [pid 293] rmdir("./17" [pid 292] <... rmdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] mkdir("./19", 0777 [pid 293] mkdir("./18", 0777 [pid 292] <... mkdir resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 390 attached [pid 390] set_robust_list(0x555555cf9760, 24) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 390 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 391 [pid 390] chdir("./19") = 0 [pid 390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 390] setpgid(0, 0) = 0 [pid 390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 391 attached ) = 3 [pid 390] write(3, "1000", 4) = 4 [pid 390] close(3) = 0 [pid 390] symlink("/dev/binderfs", "./binderfs") = 0 [pid 390] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 391] set_robust_list(0x555555cf9760, 24) = 0 [pid 391] chdir("./18" [pid 390] <... bpf resumed>) = 3 [pid 390] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 391] <... chdir resumed>) = 0 [pid 391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 391] setpgid(0, 0) = 0 [pid 391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 391] write(3, "1000", 4) = 4 [pid 391] close(3) = 0 [pid 391] symlink("/dev/binderfs", "./binderfs") = 0 [pid 391] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 391] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 387] <... bpf resumed>) = 7 [pid 390] <... bpf resumed>) = 4 [pid 388] <... bpf resumed>) = 7 [pid 386] <... bpf resumed>) = 7 [pid 390] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 388] exit_group(0 [pid 387] exit_group(0 [pid 386] exit_group(0 [pid 390] <... bpf resumed>) = 5 [pid 388] <... exit_group resumed>) = ? [pid 387] <... exit_group resumed>) = ? [pid 386] <... exit_group resumed>) = ? [pid 391] <... bpf resumed>) = 4 [pid 390] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 388] +++ exited with 0 +++ [pid 386] +++ exited with 0 +++ [pid 390] <... bpf resumed>) = 0 [pid 390] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 391] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 390] <... bpf resumed>) = 6 [pid 387] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=386, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 390] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=387, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 391] <... bpf resumed>) = 5 [pid 391] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 391] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... restart_syscall resumed>) = 0 [pid 296] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW [pid 391] <... bpf resumed>) = 6 [pid 296] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 391] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] newfstatat(AT_FDCWD, "./16/binderfs", [pid 295] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... openat resumed>) = 3 [pid 296] unlink("./16/binderfs" [pid 295] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] close(3) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 296] rmdir("./16" [pid 295] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... rmdir resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] mkdir("./17", 0777 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... mkdir resumed>) = 0 [pid 294] umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] newfstatat(AT_FDCWD, "./18/binderfs", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./15/binderfs", [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 392 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./18/binderfs" [pid 294] unlink("./15/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] getdents64(3, [pid 295] close(3 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... close resumed>) = 0 [pid 294] close(3 [pid 295] rmdir("./18" [pid 294] <... close resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 294] rmdir("./15") = 0 [pid 295] mkdir("./19", 0777./strace-static-x86_64: Process 392 attached ) = 0 [pid 294] mkdir("./16", 0777 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 393 attached [pid 393] set_robust_list(0x555555cf9760, 24) = 0 [pid 393] chdir("./19" [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 393 [pid 393] <... chdir resumed>) = 0 [pid 393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 394 [pid 392] set_robust_list(0x555555cf9760, 24) = 0 [pid 393] setpgid(0, 0) = 0 [pid 393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 392] chdir("./17" [pid 393] <... openat resumed>) = 3 [pid 392] <... chdir resumed>) = 0 [pid 393] write(3, "1000", 4) = 4 [pid 393] close(3) = 0 [pid 392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 393] symlink("/dev/binderfs", "./binderfs" [pid 392] <... prctl resumed>) = 0 [pid 392] setpgid(0, 0 [pid 393] <... symlink resumed>) = 0 [pid 392] <... setpgid resumed>) = 0 [pid 393] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 392] write(3, "1000", 4) = 4 [pid 393] <... bpf resumed>) = 3 [pid 392] close(3 [pid 393] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 394 attached [pid 392] <... close resumed>) = 0 [pid 394] set_robust_list(0x555555cf9760, 24) = 0 [pid 392] symlink("/dev/binderfs", "./binderfs" [pid 394] chdir("./16") = 0 [pid 392] <... symlink resumed>) = 0 [pid 394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 392] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 394] <... prctl resumed>) = 0 [pid 394] setpgid(0, 0) = 0 [pid 394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 394] write(3, "1000", 4) = 4 [pid 394] close(3 [pid 392] <... bpf resumed>) = 3 [pid 392] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 394] <... close resumed>) = 0 [pid 394] symlink("/dev/binderfs", "./binderfs") = 0 [pid 394] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 393] <... bpf resumed>) = 4 [pid 391] <... bpf resumed>) = 7 [pid 390] <... bpf resumed>) = 7 [pid 391] exit_group(0 [pid 390] exit_group(0 [pid 393] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 391] <... exit_group resumed>) = ? [pid 390] <... exit_group resumed>) = ? [pid 394] <... bpf resumed>) = 3 [pid 393] <... bpf resumed>) = 5 [pid 391] +++ exited with 0 +++ [pid 392] <... bpf resumed>) = 4 [pid 392] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 392] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 392] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 394] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 393] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 392] <... bpf resumed>) = 6 [pid 390] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 393] <... bpf resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=390, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 393] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 394] <... bpf resumed>) = 4 [pid 392] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 292] <... restart_syscall resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 393] <... bpf resumed>) = 6 [pid 293] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 393] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./18/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] unlink("./18/binderfs" [pid 292] <... openat resumed>) = 3 [pid 293] <... unlink resumed>) = 0 [pid 292] newfstatat(3, "", [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 293] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... close resumed>) = 0 [pid 292] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] rmdir("./18" [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... rmdir resumed>) = 0 [pid 292] newfstatat(AT_FDCWD, "./19/binderfs", [pid 293] mkdir("./19", 0777 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] unlink("./19/binderfs" [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... unlink resumed>) = 0 [pid 292] getdents64(3, [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 395 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./19"./strace-static-x86_64: Process 395 attached [pid 395] set_robust_list(0x555555cf9760, 24) = 0 [pid 395] chdir("./19" [pid 292] <... rmdir resumed>) = 0 [pid 395] <... chdir resumed>) = 0 [pid 292] mkdir("./20", 0777 [pid 395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 395] setpgid(0, 0) = 0 [pid 395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 394] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 292] <... mkdir resumed>) = 0 [pid 395] write(3, "1000", 4 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 394] <... bpf resumed>) = 5 [pid 395] <... write resumed>) = 4 [pid 395] close(3) = 0 [pid 395] symlink("/dev/binderfs", "./binderfs") = 0 [pid 394] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 396 [pid 395] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 394] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 395] <... bpf resumed>) = 3 [pid 394] <... bpf resumed>) = 6 [pid 394] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 395] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 396 attached [pid 396] set_robust_list(0x555555cf9760, 24) = 0 [pid 396] chdir("./20") = 0 [pid 396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 396] setpgid(0, 0) = 0 [pid 396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 396] write(3, "1000", 4) = 4 [pid 396] close(3) = 0 [pid 396] symlink("/dev/binderfs", "./binderfs") = 0 [pid 396] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 396] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 393] <... bpf resumed>) = 7 [pid 392] <... bpf resumed>) = 7 [pid 396] <... bpf resumed>) = 4 [pid 395] <... bpf resumed>) = 4 [pid 394] <... bpf resumed>) = 7 [pid 393] exit_group(0 [pid 395] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 393] <... exit_group resumed>) = ? [pid 392] exit_group(0 [pid 396] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 395] <... bpf resumed>) = 5 [pid 394] exit_group(0 [pid 393] +++ exited with 0 +++ [pid 392] <... exit_group resumed>) = ? [pid 395] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=393, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 396] <... bpf resumed>) = 5 [pid 395] <... bpf resumed>) = 0 [pid 394] <... exit_group resumed>) = ? [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 395] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... restart_syscall resumed>) = 0 [pid 295] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./19/binderfs") = 0 [pid 395] <... bpf resumed>) = 6 [pid 295] getdents64(3, [pid 395] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./19") = 0 [pid 295] mkdir("./20", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 397 ./strace-static-x86_64: Process 397 attached [pid 396] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 397] set_robust_list(0x555555cf9760, 24 [pid 396] <... bpf resumed>) = 0 [pid 397] <... set_robust_list resumed>) = 0 [pid 396] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 397] chdir("./20") = 0 [pid 397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 397] setpgid(0, 0) = 0 [pid 397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 396] <... bpf resumed>) = 6 [pid 397] <... openat resumed>) = 3 [pid 396] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 397] write(3, "1000", 4) = 4 [pid 397] close(3) = 0 [pid 397] symlink("/dev/binderfs", "./binderfs") = 0 [pid 397] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 397] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 395] <... bpf resumed>) = 7 [pid 395] exit_group(0 [pid 392] +++ exited with 0 +++ [pid 395] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=392, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./17/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./17") = 0 [pid 296] mkdir("./18", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 398 ./strace-static-x86_64: Process 398 attached [pid 398] set_robust_list(0x555555cf9760, 24) = 0 [pid 398] chdir("./18") = 0 [pid 398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 398] setpgid(0, 0) = 0 [pid 398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 398] write(3, "1000", 4) = 4 [pid 398] close(3) = 0 [pid 398] symlink("/dev/binderfs", "./binderfs") = 0 [pid 398] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 398] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 397] <... bpf resumed>) = 4 [pid 396] <... bpf resumed>) = 7 [pid 394] +++ exited with 0 +++ [pid 397] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 396] exit_group(0 [pid 397] <... bpf resumed>) = 5 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=394, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 396] <... exit_group resumed>) = ? [pid 397] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 294] umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW [pid 397] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 397] <... bpf resumed>) = 6 [pid 294] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 397] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./16/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./16") = 0 [pid 294] mkdir("./17", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 399 ./strace-static-x86_64: Process 399 attached [pid 399] set_robust_list(0x555555cf9760, 24) = 0 [pid 399] chdir("./17") = 0 [pid 399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 399] setpgid(0, 0) = 0 [pid 399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 399] write(3, "1000", 4) = 4 [pid 399] close(3) = 0 [pid 399] symlink("/dev/binderfs", "./binderfs") = 0 [pid 399] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 399] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 398] <... bpf resumed>) = 4 [pid 395] +++ exited with 0 +++ [pid 398] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=395, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 398] <... bpf resumed>) = 5 [pid 398] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 398] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 398] <... bpf resumed>) = 6 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 398] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./19/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./19") = 0 [pid 293] mkdir("./20", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 400 ./strace-static-x86_64: Process 400 attached [pid 400] set_robust_list(0x555555cf9760, 24) = 0 [pid 400] chdir("./20") = 0 [pid 400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 400] setpgid(0, 0) = 0 [pid 400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 400] write(3, "1000", 4) = 4 [pid 400] close(3) = 0 [pid 400] symlink("/dev/binderfs", "./binderfs") = 0 [pid 400] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 400] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 399] <... bpf resumed>) = 4 [pid 400] <... bpf resumed>) = 4 [pid 398] <... bpf resumed>) = 7 [pid 397] <... bpf resumed>) = 7 [pid 396] +++ exited with 0 +++ [pid 399] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 398] exit_group(0 [pid 400] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 399] <... bpf resumed>) = 5 [pid 398] <... exit_group resumed>) = ? [pid 397] exit_group(0 [pid 400] <... bpf resumed>) = 5 [pid 399] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 397] <... exit_group resumed>) = ? [pid 399] <... bpf resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=396, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 400] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 399] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... restart_syscall resumed>) = 0 [pid 400] <... bpf resumed>) = 0 [pid 292] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 400] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 399] <... bpf resumed>) = 6 [pid 292] unlink("./20/binderfs" [pid 399] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... unlink resumed>) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./20") = 0 [pid 292] mkdir("./21", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 401 ./strace-static-x86_64: Process 401 attached [pid 401] set_robust_list(0x555555cf9760, 24) = 0 [pid 400] <... bpf resumed>) = 6 [pid 401] chdir("./21") = 0 [pid 401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 400] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 401] <... prctl resumed>) = 0 [pid 401] setpgid(0, 0) = 0 [pid 401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 401] write(3, "1000", 4) = 4 [pid 401] close(3) = 0 [pid 401] symlink("/dev/binderfs", "./binderfs") = 0 [pid 401] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 401] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 398] +++ exited with 0 +++ [pid 397] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=397, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=398, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./18/binderfs", [pid 295] newfstatat(AT_FDCWD, "./20/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./18/binderfs" [pid 295] unlink("./20/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] getdents64(3, [pid 296] close(3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... close resumed>) = 0 [pid 295] close(3 [pid 296] rmdir("./18" [pid 295] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] rmdir("./20" [pid 296] mkdir("./19", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] mkdir("./21", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... mkdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 402 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 403 ./strace-static-x86_64: Process 403 attached [pid 403] set_robust_list(0x555555cf9760, 24) = 0 [pid 403] chdir("./21") = 0 [pid 403] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 402 attached ) = 0 [pid 403] setpgid(0, 0) = 0 [pid 402] set_robust_list(0x555555cf9760, 24 [pid 403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 403] write(3, "1000", 4) = 4 [pid 403] close(3) = 0 [pid 403] symlink("/dev/binderfs", "./binderfs") = 0 [pid 402] <... set_robust_list resumed>) = 0 [pid 403] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 402] chdir("./19") = 0 [pid 403] <... bpf resumed>) = 3 [pid 402] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 403] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 402] <... prctl resumed>) = 0 [pid 402] setpgid(0, 0) = 0 [pid 402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 402] write(3, "1000", 4) = 4 [pid 402] close(3) = 0 [pid 402] symlink("/dev/binderfs", "./binderfs") = 0 [pid 402] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 402] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 399] <... bpf resumed>) = 7 [pid 403] <... bpf resumed>) = 4 [pid 401] <... bpf resumed>) = 4 [pid 400] <... bpf resumed>) = 7 [pid 399] exit_group(0 [pid 403] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 399] <... exit_group resumed>) = ? [pid 403] <... bpf resumed>) = 5 [pid 402] <... bpf resumed>) = 4 [pid 401] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 400] exit_group(0 [pid 402] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 400] <... exit_group resumed>) = ? [pid 401] <... bpf resumed>) = 5 [pid 403] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 403] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 402] <... bpf resumed>) = 5 [pid 401] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 403] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 401] <... bpf resumed>) = 0 [pid 402] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 401] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 402] <... bpf resumed>) = 0 [pid 401] <... bpf resumed>) = 6 [pid 401] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 402] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 402] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 400] +++ exited with 0 +++ [pid 399] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=399, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=400, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 294] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 294] umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... openat resumed>) = 3 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(3, "", [pid 294] newfstatat(AT_FDCWD, "./17/binderfs", [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] getdents64(3, [pid 294] unlink("./17/binderfs") = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 293] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... close resumed>) = 0 [pid 294] rmdir("./17" [pid 293] newfstatat(AT_FDCWD, "./20/binderfs", [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./18", 0777) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] unlink("./20/binderfs" [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 404 [pid 293] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 404 attached [pid 293] getdents64(3, [pid 404] set_robust_list(0x555555cf9760, 24 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 404] <... set_robust_list resumed>) = 0 [pid 293] close(3 [pid 404] chdir("./18" [pid 293] <... close resumed>) = 0 [pid 404] <... chdir resumed>) = 0 [pid 293] rmdir("./20" [pid 404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 404] setpgid(0, 0) = 0 [pid 404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] <... rmdir resumed>) = 0 [pid 404] <... openat resumed>) = 3 [pid 293] mkdir("./21", 0777 [pid 404] write(3, "1000", 4) = 4 [pid 404] close(3) = 0 [pid 404] symlink("/dev/binderfs", "./binderfs" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 404] <... symlink resumed>) = 0 [pid 404] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 405 attached [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 405 [pid 405] set_robust_list(0x555555cf9760, 24 [pid 404] <... bpf resumed>) = 3 [pid 405] <... set_robust_list resumed>) = 0 [pid 404] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 405] chdir("./21") = 0 [pid 405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 405] setpgid(0, 0) = 0 [pid 405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 405] write(3, "1000", 4) = 4 [pid 405] close(3) = 0 [pid 405] symlink("/dev/binderfs", "./binderfs") = 0 [pid 405] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 405] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 403] <... bpf resumed>) = 7 [pid 402] <... bpf resumed>) = 7 [pid 401] <... bpf resumed>) = 7 [pid 404] <... bpf resumed>) = 4 [pid 405] <... bpf resumed>) = 4 [pid 402] exit_group(0 [pid 401] exit_group(0 [pid 402] <... exit_group resumed>) = ? [pid 401] <... exit_group resumed>) = ? [pid 405] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 404] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 403] exit_group(0 [pid 402] +++ exited with 0 +++ [pid 401] +++ exited with 0 +++ [pid 404] <... bpf resumed>) = 5 [pid 403] <... exit_group resumed>) = ? [pid 405] <... bpf resumed>) = 5 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 403] +++ exited with 0 +++ [pid 296] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=401, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 405] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 404] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... restart_syscall resumed>) = 0 [pid 292] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 404] <... bpf resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 405] <... bpf resumed>) = 0 [pid 404] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 292] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 405] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 292] <... openat resumed>) = 3 [pid 296] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] newfstatat(3, "", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./21/binderfs", [pid 292] getdents64(3, [pid 296] newfstatat(AT_FDCWD, "./19/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./21/binderfs" [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] unlink("./19/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 296] <... unlink resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] getdents64(3, [pid 295] rmdir("./21" [pid 292] newfstatat(AT_FDCWD, "./21/binderfs", [pid 404] <... bpf resumed>) = 6 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 296] close(3 [pid 295] mkdir("./22", 0777 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 405] <... bpf resumed>) = 6 [pid 404] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... close resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 292] unlink("./21/binderfs" [pid 296] rmdir("./19" [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... rmdir resumed>) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] mkdir("./20", 0777 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 406 [pid 292] getdents64(3, ./strace-static-x86_64: Process 406 attached [pid 406] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 406] chdir("./22") = 0 [pid 406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 292] close(3 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 407 [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./21" [pid 406] setpgid(0, 0) = 0 [pid 406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./22", 0777 [pid 406] <... openat resumed>) = 3 [pid 406] write(3, "1000", 4) = 4 [pid 406] close(3) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 406] symlink("/dev/binderfs", "./binderfs") = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 408 [pid 406] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 405] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16./strace-static-x86_64: Process 408 attached [pid 408] set_robust_list(0x555555cf9760, 24) = 0 [pid 408] chdir("./22") = 0 [pid 408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 408] setpgid(0, 0) = 0 [pid 408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 406] <... bpf resumed>) = 3 [pid 406] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 407 attached [pid 407] set_robust_list(0x555555cf9760, 24) = 0 [pid 408] <... openat resumed>) = 3 [pid 407] chdir("./20") = 0 [pid 407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 408] write(3, "1000", 4) = 4 [pid 408] close(3 [pid 407] setpgid(0, 0) = 0 [pid 407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 408] <... close resumed>) = 0 [pid 407] <... openat resumed>) = 3 [pid 408] symlink("/dev/binderfs", "./binderfs" [pid 407] write(3, "1000", 4) = 4 [pid 407] close(3) = 0 [pid 407] symlink("/dev/binderfs", "./binderfs" [pid 408] <... symlink resumed>) = 0 [pid 407] <... symlink resumed>) = 0 [pid 408] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 407] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 408] <... bpf resumed>) = 3 [pid 407] <... bpf resumed>) = 3 [pid 407] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 408] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 404] <... bpf resumed>) = 7 [pid 405] <... bpf resumed>) = 7 [pid 404] exit_group(0 [pid 406] <... bpf resumed>) = 4 [pid 404] <... exit_group resumed>) = ? [pid 405] exit_group(0 [pid 406] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 406] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 406] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 405] <... exit_group resumed>) = ? [pid 406] <... bpf resumed>) = 6 [pid 406] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 407] <... bpf resumed>) = 4 [pid 407] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 404] +++ exited with 0 +++ [pid 407] <... bpf resumed>) = 5 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=404, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 407] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 407] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 408] <... bpf resumed>) = 4 [pid 407] <... bpf resumed>) = 6 [pid 406] <... bpf resumed>) = 7 [pid 407] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 406] exit_group(0 [pid 294] umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW [pid 408] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 406] <... exit_group resumed>) = ? [pid 408] <... bpf resumed>) = 5 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./18/binderfs", [pid 408] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./18/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./18" [pid 408] <... bpf resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./19", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 409 [pid 408] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 409 attached [pid 409] set_robust_list(0x555555cf9760, 24) = 0 [pid 409] chdir("./19") = 0 [pid 409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 409] setpgid(0, 0) = 0 [pid 409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 408] <... bpf resumed>) = 6 [pid 408] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 409] <... openat resumed>) = 3 [pid 409] write(3, "1000", 4) = 4 [pid 409] close(3) = 0 [pid 409] symlink("/dev/binderfs", "./binderfs") = 0 [pid 409] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 409] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 407] <... bpf resumed>) = 7 [pid 407] exit_group(0) = ? [pid 406] +++ exited with 0 +++ [pid 409] <... bpf resumed>) = 4 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 409] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 405] +++ exited with 0 +++ [pid 408] <... bpf resumed>) = 7 [pid 409] <... bpf resumed>) = 5 [pid 409] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=405, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 409] <... bpf resumed>) = 0 [pid 295] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 409] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 408] exit_group(0 [pid 409] <... bpf resumed>) = 6 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 409] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 408] <... exit_group resumed>) = ? [pid 295] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... openat resumed>) = 3 [pid 295] unlink("./22/binderfs" [pid 293] newfstatat(3, "", [pid 295] <... unlink resumed>) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 293] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] close(3 [pid 293] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... close resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] rmdir("./22" [pid 293] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./21/binderfs" [pid 295] <... rmdir resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] mkdir("./23", 0777 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./21" [pid 295] <... mkdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] mkdir("./22", 0777) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 410 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 410 attached , child_tidptr=0x555555cf9750) = 411 ./strace-static-x86_64: Process 411 attached [pid 410] set_robust_list(0x555555cf9760, 24 [pid 411] set_robust_list(0x555555cf9760, 24) = 0 [pid 411] chdir("./22" [pid 410] <... set_robust_list resumed>) = 0 [pid 411] <... chdir resumed>) = 0 [pid 411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 411] setpgid(0, 0) = 0 [pid 411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 410] chdir("./23" [pid 411] write(3, "1000", 4 [pid 410] <... chdir resumed>) = 0 [pid 411] <... write resumed>) = 4 [pid 411] close(3) = 0 [pid 411] symlink("/dev/binderfs", "./binderfs") = 0 [pid 410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 411] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 410] <... prctl resumed>) = 0 [pid 411] <... bpf resumed>) = 3 [pid 410] setpgid(0, 0 [pid 411] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 410] <... setpgid resumed>) = 0 [pid 410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 410] write(3, "1000", 4) = 4 [pid 410] close(3) = 0 [pid 410] symlink("/dev/binderfs", "./binderfs") = 0 [pid 410] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 410] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 409] <... bpf resumed>) = 7 [pid 409] exit_group(0) = ? [pid 411] <... bpf resumed>) = 4 [pid 410] <... bpf resumed>) = 4 [pid 408] +++ exited with 0 +++ [pid 407] +++ exited with 0 +++ [pid 411] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 410] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 409] +++ exited with 0 +++ [pid 411] <... bpf resumed>) = 5 [pid 410] <... bpf resumed>) = 5 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=407, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=408, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 411] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 410] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 411] <... bpf resumed>) = 0 [pid 410] <... bpf resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=409, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 411] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 410] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 411] <... bpf resumed>) = 6 [pid 410] <... bpf resumed>) = 6 [pid 294] umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW [pid 411] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 410] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 296] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 296] newfstatat(3, "", [pid 294] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, [pid 292] getdents64(3, [pid 294] umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./19/binderfs", [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] unlink("./19/binderfs" [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./20/binderfs", [pid 294] <... unlink resumed>) = 0 [pid 292] newfstatat(AT_FDCWD, "./22/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] getdents64(3, [pid 296] unlink("./20/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./22/binderfs" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] close(3 [pid 292] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 294] <... close resumed>) = 0 [pid 292] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] rmdir("./19" [pid 296] close(3 [pid 294] <... rmdir resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3 [pid 294] mkdir("./20", 0777 [pid 296] <... close resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 296] rmdir("./20" [pid 294] <... mkdir resumed>) = 0 [pid 292] rmdir("./22" [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./21", 0777 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./23", 0777 [pid 296] <... mkdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 412 attached [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 413 attached [pid 412] set_robust_list(0x555555cf9760, 24 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 412 [pid 413] set_robust_list(0x555555cf9760, 24 [pid 412] <... set_robust_list resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 413 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 414 [pid 412] chdir("./20") = 0 ./strace-static-x86_64: Process 414 attached [pid 412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 414] set_robust_list(0x555555cf9760, 24) = 0 [pid 414] chdir("./23" [pid 413] <... set_robust_list resumed>) = 0 [pid 412] setpgid(0, 0) = 0 [pid 412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 412] write(3, "1000", 4) = 4 [pid 412] close(3) = 0 [pid 412] symlink("/dev/binderfs", "./binderfs") = 0 [pid 412] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 414] <... chdir resumed>) = 0 [pid 412] <... bpf resumed>) = 3 [pid 412] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 413] chdir("./21" [pid 414] <... prctl resumed>) = 0 [pid 413] <... chdir resumed>) = 0 [pid 414] setpgid(0, 0 [pid 413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 414] <... setpgid resumed>) = 0 [pid 413] <... prctl resumed>) = 0 [pid 414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 413] setpgid(0, 0 [pid 414] <... openat resumed>) = 3 [pid 413] <... setpgid resumed>) = 0 [pid 413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 414] write(3, "1000", 4) = 4 [pid 413] <... openat resumed>) = 3 [pid 414] close(3 [pid 413] write(3, "1000", 4 [pid 414] <... close resumed>) = 0 [pid 413] <... write resumed>) = 4 [pid 414] symlink("/dev/binderfs", "./binderfs" [pid 413] close(3 [pid 414] <... symlink resumed>) = 0 [pid 413] <... close resumed>) = 0 [pid 413] symlink("/dev/binderfs", "./binderfs" [pid 414] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 413] <... symlink resumed>) = 0 [pid 414] <... bpf resumed>) = 3 [pid 413] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 414] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 413] <... bpf resumed>) = 3 [pid 412] <... bpf resumed>) = 4 [pid 411] <... bpf resumed>) = 7 [pid 410] <... bpf resumed>) = 7 [pid 414] <... bpf resumed>) = 4 [pid 413] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 412] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 411] exit_group(0 [pid 410] exit_group(0 [pid 414] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 413] <... bpf resumed>) = 4 [pid 412] <... bpf resumed>) = 5 [pid 411] <... exit_group resumed>) = ? [pid 410] <... exit_group resumed>) = ? [pid 414] <... bpf resumed>) = 5 [pid 413] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 412] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 411] +++ exited with 0 +++ [pid 410] +++ exited with 0 +++ [pid 414] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 412] <... bpf resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=410, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=411, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 413] <... bpf resumed>) = 5 [pid 412] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 414] <... bpf resumed>) = 0 [pid 413] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 412] <... bpf resumed>) = 6 [pid 414] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 413] <... bpf resumed>) = 0 [pid 412] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 413] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 414] <... bpf resumed>) = 6 [pid 295] <... openat resumed>) = 3 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... openat resumed>) = 3 [pid 295] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 414] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 413] <... bpf resumed>) = 6 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(3, "", [pid 295] newfstatat(AT_FDCWD, "./23/binderfs", [pid 413] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] unlink("./23/binderfs") = 0 [pid 293] getdents64(3, [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... close resumed>) = 0 [pid 293] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] rmdir("./23") = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] mkdir("./24", 0777 [pid 293] newfstatat(AT_FDCWD, "./22/binderfs", [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./22/binderfs" [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 415 [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./22"./strace-static-x86_64: Process 415 attached ) = 0 [pid 293] mkdir("./23", 0777 [pid 415] set_robust_list(0x555555cf9760, 24 [pid 293] <... mkdir resumed>) = 0 [pid 415] <... set_robust_list resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 416 [pid 415] chdir("./24"./strace-static-x86_64: Process 416 attached [pid 416] set_robust_list(0x555555cf9760, 24) = 0 [pid 416] chdir("./23") = 0 [pid 416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 416] setpgid(0, 0) = 0 [pid 416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 415] <... chdir resumed>) = 0 [pid 415] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 416] <... openat resumed>) = 3 [pid 416] write(3, "1000", 4) = 4 [pid 415] <... prctl resumed>) = 0 [pid 416] close(3 [pid 415] setpgid(0, 0 [pid 416] <... close resumed>) = 0 [pid 415] <... setpgid resumed>) = 0 [pid 416] symlink("/dev/binderfs", "./binderfs" [pid 415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 416] <... symlink resumed>) = 0 [pid 415] <... openat resumed>) = 3 [pid 415] write(3, "1000", 4 [pid 416] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 415] <... write resumed>) = 4 [pid 415] close(3) = 0 [pid 415] symlink("/dev/binderfs", "./binderfs") = 0 [pid 415] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 416] <... bpf resumed>) = 3 [pid 415] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 416] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 412] <... bpf resumed>) = 7 [pid 414] <... bpf resumed>) = 7 [pid 413] <... bpf resumed>) = 7 [pid 412] exit_group(0 [pid 414] exit_group(0 [pid 412] <... exit_group resumed>) = ? [pid 416] <... bpf resumed>) = 4 [pid 415] <... bpf resumed>) = 4 [pid 414] <... exit_group resumed>) = ? [pid 413] exit_group(0 [pid 412] +++ exited with 0 +++ [pid 413] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 416] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 415] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 416] <... bpf resumed>) = 5 [pid 416] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 415] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 416] <... bpf resumed>) = 0 [pid 415] <... bpf resumed>) = 0 [pid 294] umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW [pid 416] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 415] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./20/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./20") = 0 [pid 294] mkdir("./21", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 417 ./strace-static-x86_64: Process 417 attached [pid 417] set_robust_list(0x555555cf9760, 24) = 0 [pid 417] chdir("./21") = 0 [pid 417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 417] setpgid(0, 0 [pid 415] <... bpf resumed>) = 6 [pid 417] <... setpgid resumed>) = 0 [pid 417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 417] write(3, "1000", 4) = 4 [pid 417] close(3) = 0 [pid 417] symlink("/dev/binderfs", "./binderfs") = 0 [pid 416] <... bpf resumed>) = 6 [pid 415] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 417] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 416] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 417] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 414] +++ exited with 0 +++ [pid 413] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=413, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=414, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] <... restart_syscall resumed>) = 0 [pid 296] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 292] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./21/binderfs", [pid 292] newfstatat(AT_FDCWD, "./23/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./21/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 292] unlink("./23/binderfs" [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] close(3 [pid 292] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] rmdir("./21" [pid 292] close(3 [pid 296] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 296] mkdir("./22", 0777 [pid 292] rmdir("./23" [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./24", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 418 ./strace-static-x86_64: Process 418 attached [pid 418] set_robust_list(0x555555cf9760, 24) = 0 [pid 418] chdir("./22" [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 418] <... chdir resumed>) = 0 [pid 418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 418] setpgid(0, 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 419 [pid 418] <... setpgid resumed>) = 0 [pid 418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 418] write(3, "1000", 4) = 4 [pid 418] close(3) = 0 [pid 418] symlink("/dev/binderfs", "./binderfs") = 0 [pid 418] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 418] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 419 attached [pid 419] set_robust_list(0x555555cf9760, 24) = 0 [pid 419] chdir("./24") = 0 [pid 419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 419] setpgid(0, 0) = 0 [pid 419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 419] write(3, "1000", 4) = 4 [pid 419] close(3) = 0 [pid 419] symlink("/dev/binderfs", "./binderfs") = 0 [pid 419] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 419] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 416] <... bpf resumed>) = 7 [pid 415] <... bpf resumed>) = 7 [pid 418] <... bpf resumed>) = 4 [pid 417] <... bpf resumed>) = 4 [pid 418] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 417] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 416] exit_group(0 [pid 415] exit_group(0 [pid 418] <... bpf resumed>) = 5 [pid 417] <... bpf resumed>) = 5 [pid 416] <... exit_group resumed>) = ? [pid 415] <... exit_group resumed>) = ? [pid 418] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 417] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 418] <... bpf resumed>) = 0 [pid 417] <... bpf resumed>) = 0 [pid 418] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 417] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 419] <... bpf resumed>) = 4 [pid 419] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 417] <... bpf resumed>) = 6 [pid 419] <... bpf resumed>) = 5 [pid 417] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 419] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 417] <... bpf resumed>) = 7 [pid 419] <... bpf resumed>) = 0 [pid 418] <... bpf resumed>) = 6 [pid 417] exit_group(0 [pid 419] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 418] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 417] <... exit_group resumed>) = ? [pid 419] <... bpf resumed>) = 6 [pid 417] +++ exited with 0 +++ [pid 416] +++ exited with 0 +++ [pid 419] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 418] <... bpf resumed>) = 7 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 418] exit_group(0) = ? [pid 294] <... restart_syscall resumed>) = 0 [pid 294] umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 293] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./21/binderfs", [pid 293] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./21/binderfs" [pid 293] <... openat resumed>) = 3 [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 293] newfstatat(3, "", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] close(3) = 0 [pid 293] getdents64(3, [pid 294] rmdir("./21") = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] mkdir("./22", 0777) = 0 [pid 293] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 420 attached [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 420 [pid 293] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./23/binderfs" [pid 420] set_robust_list(0x555555cf9760, 24 [pid 293] <... unlink resumed>) = 0 [pid 420] <... set_robust_list resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./23" [pid 420] chdir("./22" [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./24", 0777 [pid 420] <... chdir resumed>) = 0 [pid 420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 420] setpgid(0, 0) = 0 [pid 420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 420] <... openat resumed>) = 3 [pid 420] write(3, "1000", 4) = 4 [pid 420] close(3) = 0 [pid 420] symlink("/dev/binderfs", "./binderfs") = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 421 [pid 420] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 420] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 421 attached [pid 421] set_robust_list(0x555555cf9760, 24) = 0 [pid 421] chdir("./24") = 0 [pid 421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 421] setpgid(0, 0) = 0 [pid 421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 421] write(3, "1000", 4) = 4 [pid 421] close(3) = 0 [pid 421] symlink("/dev/binderfs", "./binderfs") = 0 [pid 421] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 421] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 419] <... bpf resumed>) = 7 [pid 415] +++ exited with 0 +++ [pid 419] exit_group(0) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./24/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./24") = 0 [pid 295] mkdir("./25", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 422 ./strace-static-x86_64: Process 422 attached [pid 422] set_robust_list(0x555555cf9760, 24) = 0 [pid 422] chdir("./25") = 0 [pid 422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 422] setpgid(0, 0) = 0 [pid 422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 422] write(3, "1000", 4) = 4 [pid 422] close(3) = 0 [pid 422] symlink("/dev/binderfs", "./binderfs") = 0 [pid 422] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 422] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 420] <... bpf resumed>) = 4 [pid 418] +++ exited with 0 +++ [pid 422] <... bpf resumed>) = 4 [pid 421] <... bpf resumed>) = 4 [pid 419] +++ exited with 0 +++ [pid 420] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 421] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 420] <... bpf resumed>) = 5 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=418, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=419, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 420] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 420] <... bpf resumed>) = 0 [pid 296] <... restart_syscall resumed>) = 0 [pid 421] <... bpf resumed>) = 5 [pid 420] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... restart_syscall resumed>) = 0 [pid 422] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 421] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 420] <... bpf resumed>) = 6 [pid 420] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 421] <... bpf resumed>) = 0 [pid 292] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 421] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... openat resumed>) = 3 [pid 296] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 296] newfstatat(3, "", [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 296] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./24/binderfs", [pid 296] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./22/binderfs" [pid 292] unlink("./24/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 292] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 292] close(3 [pid 296] <... close resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 296] rmdir("./22" [pid 292] rmdir("./24" [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./23", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 292] mkdir("./25", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 421] <... bpf resumed>) = 6 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 423 ./strace-static-x86_64: Process 423 attached [pid 423] set_robust_list(0x555555cf9760, 24) = 0 [pid 423] chdir("./23") = 0 [pid 421] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 424 [pid 423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 423] setpgid(0, 0) = 0 [pid 423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 422] <... bpf resumed>) = 5 [pid 423] write(3, "1000", 4) = 4 [pid 423] close(3) = 0 [pid 422] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 423] symlink("/dev/binderfs", "./binderfs") = 0 [pid 422] <... bpf resumed>) = 0 [pid 423] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 422] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 423] <... bpf resumed>) = 3 [pid 422] <... bpf resumed>) = 6 [pid 423] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 422] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16./strace-static-x86_64: Process 424 attached [pid 424] set_robust_list(0x555555cf9760, 24) = 0 [pid 424] chdir("./25") = 0 [pid 424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 424] setpgid(0, 0) = 0 [pid 424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 424] write(3, "1000", 4) = 4 [pid 424] close(3) = 0 [pid 424] symlink("/dev/binderfs", "./binderfs") = 0 [pid 424] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 424] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 420] <... bpf resumed>) = 7 [pid 423] <... bpf resumed>) = 4 [pid 422] <... bpf resumed>) = 7 [pid 421] <... bpf resumed>) = 7 [pid 420] exit_group(0 [pid 423] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 420] <... exit_group resumed>) = ? [pid 424] <... bpf resumed>) = 4 [pid 423] <... bpf resumed>) = 5 [pid 422] exit_group(0 [pid 421] exit_group(0 [pid 420] +++ exited with 0 +++ [pid 424] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 423] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 422] <... exit_group resumed>) = ? [pid 421] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=420, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 424] <... bpf resumed>) = 5 [pid 423] <... bpf resumed>) = 0 [pid 423] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 423] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 424] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 424] <... bpf resumed>) = 0 [pid 294] getdents64(3, [pid 424] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./22/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./22") = 0 [pid 294] mkdir("./23", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 425 ./strace-static-x86_64: Process 425 attached [pid 424] <... bpf resumed>) = 6 [pid 425] set_robust_list(0x555555cf9760, 24 [pid 424] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 425] <... set_robust_list resumed>) = 0 [pid 425] chdir("./23") = 0 [pid 425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 425] setpgid(0, 0) = 0 [pid 425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 425] write(3, "1000", 4) = 4 [pid 425] close(3) = 0 [pid 425] symlink("/dev/binderfs", "./binderfs") = 0 [pid 425] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 425] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 423] <... bpf resumed>) = 7 [pid 421] +++ exited with 0 +++ [pid 423] exit_group(0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 423] <... exit_group resumed>) = ? [pid 293] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./24/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./24") = 0 [pid 293] mkdir("./25", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 426 ./strace-static-x86_64: Process 426 attached [pid 426] set_robust_list(0x555555cf9760, 24) = 0 [pid 426] chdir("./25") = 0 [pid 426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 426] setpgid(0, 0) = 0 [pid 426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 426] write(3, "1000", 4) = 4 [pid 426] close(3) = 0 [pid 426] symlink("/dev/binderfs", "./binderfs") = 0 [pid 426] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 426] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 425] <... bpf resumed>) = 4 [pid 424] <... bpf resumed>) = 7 [pid 425] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 424] exit_group(0 [pid 422] +++ exited with 0 +++ [pid 425] <... bpf resumed>) = 5 [pid 424] <... exit_group resumed>) = ? [pid 425] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 425] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 425] <... bpf resumed>) = 6 [pid 295] <... restart_syscall resumed>) = 0 [pid 425] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./25/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./25") = 0 [pid 295] mkdir("./26", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 427 ./strace-static-x86_64: Process 427 attached [pid 427] set_robust_list(0x555555cf9760, 24) = 0 [pid 427] chdir("./26") = 0 [pid 427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 427] setpgid(0, 0) = 0 [pid 427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 427] write(3, "1000", 4) = 4 [pid 427] close(3) = 0 [pid 427] symlink("/dev/binderfs", "./binderfs") = 0 [pid 427] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 427] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 426] <... bpf resumed>) = 4 [pid 424] +++ exited with 0 +++ [pid 423] +++ exited with 0 +++ [pid 426] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 426] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=424, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 426] <... bpf resumed>) = 0 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 426] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 296] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 296] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 426] <... bpf resumed>) = 6 [pid 292] getdents64(3, [pid 426] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(AT_FDCWD, "./23/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./25/binderfs", [pid 296] unlink("./23/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 292] unlink("./25/binderfs" [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] close(3 [pid 292] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] rmdir("./23" [pid 292] close(3 [pid 296] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 296] mkdir("./24", 0777 [pid 292] rmdir("./25" [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./26", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 428 ./strace-static-x86_64: Process 428 attached [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 428] set_robust_list(0x555555cf9760, 24) = 0 [pid 428] chdir("./24") = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 429 [pid 428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 428] setpgid(0, 0) = 0 [pid 428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 428] write(3, "1000", 4) = 4 [pid 428] close(3) = 0 [pid 428] symlink("/dev/binderfs", "./binderfs") = 0 [pid 428] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 428] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 429 attached [pid 429] set_robust_list(0x555555cf9760, 24) = 0 [pid 429] chdir("./26") = 0 [pid 429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 429] setpgid(0, 0) = 0 [pid 429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 429] write(3, "1000", 4) = 4 [pid 429] close(3) = 0 [pid 429] symlink("/dev/binderfs", "./binderfs") = 0 [pid 429] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 429] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 428] <... bpf resumed>) = 4 [pid 427] <... bpf resumed>) = 4 [pid 426] <... bpf resumed>) = 7 [pid 425] <... bpf resumed>) = 7 [pid 428] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 427] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 428] <... bpf resumed>) = 5 [pid 427] <... bpf resumed>) = 5 [pid 426] exit_group(0 [pid 425] exit_group(0 [pid 429] <... bpf resumed>) = 4 [pid 428] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 427] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 426] <... exit_group resumed>) = ? [pid 425] <... exit_group resumed>) = ? [pid 428] <... bpf resumed>) = 0 [pid 427] <... bpf resumed>) = 0 [pid 428] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 426] +++ exited with 0 +++ [pid 428] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 429] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 427] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 429] <... bpf resumed>) = 5 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=426, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 429] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 427] <... bpf resumed>) = 6 [pid 427] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 429] <... bpf resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 429] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 429] <... bpf resumed>) = 6 [pid 293] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 429] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./25/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./25") = 0 [pid 293] mkdir("./26", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 430 attached , child_tidptr=0x555555cf9750) = 430 [pid 430] set_robust_list(0x555555cf9760, 24) = 0 [pid 430] chdir("./26") = 0 [pid 430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 430] setpgid(0, 0) = 0 [pid 430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 430] write(3, "1000", 4) = 4 [pid 430] close(3) = 0 [pid 430] symlink("/dev/binderfs", "./binderfs") = 0 [pid 430] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 428] <... bpf resumed>) = 7 [pid 427] <... bpf resumed>) = 7 [pid 425] +++ exited with 0 +++ [pid 429] <... bpf resumed>) = 7 [pid 428] exit_group(0 [pid 427] exit_group(0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=425, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 428] <... exit_group resumed>) = ? [pid 427] <... exit_group resumed>) = ? [pid 294] umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 429] exit_group(0 [pid 294] umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 429] <... exit_group resumed>) = ? [pid 294] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./23/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./23") = 0 [pid 294] mkdir("./24", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 431 ./strace-static-x86_64: Process 431 attached [pid 431] set_robust_list(0x555555cf9760, 24) = 0 [pid 431] chdir("./24") = 0 [pid 431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 431] setpgid(0, 0) = 0 [pid 431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 431] write(3, "1000", 4) = 4 [pid 431] close(3) = 0 [pid 431] symlink("/dev/binderfs", "./binderfs") = 0 [pid 430] <... bpf resumed>) = 3 [pid 431] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 430] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 431] <... bpf resumed>) = 3 [pid 431] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 427] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./26/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./26") = 0 [pid 295] mkdir("./27", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 432 attached , child_tidptr=0x555555cf9750) = 432 [pid 432] set_robust_list(0x555555cf9760, 24) = 0 [pid 432] chdir("./27") = 0 [pid 432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 432] setpgid(0, 0) = 0 [pid 432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 432] write(3, "1000", 4) = 4 [pid 432] close(3) = 0 [pid 432] symlink("/dev/binderfs", "./binderfs") = 0 [pid 432] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 432] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 430] <... bpf resumed>) = 4 [pid 428] +++ exited with 0 +++ [pid 430] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 430] <... bpf resumed>) = 5 [pid 430] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 430] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 430] <... bpf resumed>) = 6 [pid 430] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./24/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./24") = 0 [pid 296] mkdir("./25", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 433 attached [pid 433] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 433 [pid 433] chdir("./25") = 0 [pid 433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 433] setpgid(0, 0) = 0 [pid 433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 433] write(3, "1000", 4) = 4 [pid 433] close(3) = 0 [pid 433] symlink("/dev/binderfs", "./binderfs") = 0 [pid 433] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 433] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 432] <... bpf resumed>) = 4 [pid 431] <... bpf resumed>) = 4 [pid 430] <... bpf resumed>) = 7 [pid 429] +++ exited with 0 +++ [pid 432] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 431] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 430] exit_group(0 [pid 433] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 432] <... bpf resumed>) = 5 [pid 430] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 433] <... bpf resumed>) = 5 [pid 432] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 431] <... bpf resumed>) = 5 [pid 430] +++ exited with 0 +++ [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 432] <... bpf resumed>) = 0 [pid 431] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 432] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 431] <... bpf resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 433] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 432] <... bpf resumed>) = 6 [pid 431] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=430, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 433] <... bpf resumed>) = 0 [pid 432] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 431] <... bpf resumed>) = 6 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 431] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] getdents64(3, [pid 292] <... openat resumed>) = 3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] newfstatat(3, "", [pid 293] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./26/binderfs", [pid 292] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] unlink("./26/binderfs" [pid 292] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] newfstatat(AT_FDCWD, "./26/binderfs", [pid 293] close(3 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... close resumed>) = 0 [pid 292] unlink("./26/binderfs" [pid 293] rmdir("./26" [pid 292] <... unlink resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] getdents64(3, [pid 293] mkdir("./27", 0777 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] close(3 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./26" [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 434 ./strace-static-x86_64: Process 434 attached [pid 434] set_robust_list(0x555555cf9760, 24) = 0 [pid 434] chdir("./27" [pid 292] <... rmdir resumed>) = 0 [pid 433] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] mkdir("./27", 0777 [pid 434] <... chdir resumed>) = 0 [pid 434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 434] setpgid(0, 0) = 0 [pid 434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 292] <... mkdir resumed>) = 0 [pid 434] write(3, "1000", 4 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 434] <... write resumed>) = 4 [pid 434] close(3) = 0 [pid 434] symlink("/dev/binderfs", "./binderfs") = 0 [pid 434] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 435 ./strace-static-x86_64: Process 435 attached [pid 433] <... bpf resumed>) = 6 [pid 433] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 435] set_robust_list(0x555555cf9760, 24) = 0 [pid 434] <... bpf resumed>) = 3 [pid 434] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 435] chdir("./27") = 0 [pid 435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 435] setpgid(0, 0) = 0 [pid 435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 435] write(3, "1000", 4) = 4 [pid 435] close(3) = 0 [pid 435] symlink("/dev/binderfs", "./binderfs") = 0 [pid 435] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 435] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 432] <... bpf resumed>) = 7 [pid 434] <... bpf resumed>) = 4 [pid 433] <... bpf resumed>) = 7 [pid 432] exit_group(0 [pid 431] <... bpf resumed>) = 7 [pid 434] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 432] <... exit_group resumed>) = ? [pid 435] <... bpf resumed>) = 4 [pid 434] <... bpf resumed>) = 5 [pid 433] exit_group(0 [pid 432] +++ exited with 0 +++ [pid 431] exit_group(0 [pid 433] <... exit_group resumed>) = ? [pid 431] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=432, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 434] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 434] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 434] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./27/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./27") = 0 [pid 295] mkdir("./28", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 436 ./strace-static-x86_64: Process 436 attached [pid 436] set_robust_list(0x555555cf9760, 24) = 0 [pid 436] chdir("./28") = 0 [pid 436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 435] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 436] <... prctl resumed>) = 0 [pid 436] setpgid(0, 0) = 0 [pid 436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 435] <... bpf resumed>) = 5 [pid 436] write(3, "1000", 4) = 4 [pid 436] close(3) = 0 [pid 436] symlink("/dev/binderfs", "./binderfs") = 0 [pid 435] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 436] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 435] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 435] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 436] <... bpf resumed>) = 3 [pid 436] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 433] +++ exited with 0 +++ [pid 431] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=431, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=433, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 294] umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 296] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] newfstatat(3, "", [pid 296] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 296] newfstatat(3, "", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] getdents64(3, [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./24/binderfs", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] unlink("./24/binderfs" [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] newfstatat(AT_FDCWD, "./25/binderfs", [pid 294] close(3 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... close resumed>) = 0 [pid 296] unlink("./25/binderfs" [pid 294] rmdir("./24" [pid 296] <... unlink resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 296] getdents64(3, [pid 294] mkdir("./25", 0777 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 296] close(3 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... close resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 437 [pid 296] rmdir("./25"./strace-static-x86_64: Process 437 attached [pid 437] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./26", 0777 [pid 437] chdir("./25") = 0 [pid 437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 437] setpgid(0, 0) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 437] write(3, "1000", 4) = 4 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 438 [pid 437] close(3) = 0 [pid 437] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 438 attached ) = 0 [pid 437] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 438] set_robust_list(0x555555cf9760, 24) = 0 [pid 437] <... bpf resumed>) = 3 [pid 437] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 438] chdir("./26") = 0 [pid 438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 438] setpgid(0, 0) = 0 [pid 438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 438] write(3, "1000", 4) = 4 [pid 438] close(3) = 0 [pid 438] symlink("/dev/binderfs", "./binderfs") = 0 [pid 438] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 438] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 434] <... bpf resumed>) = 7 [pid 437] <... bpf resumed>) = 4 [pid 436] <... bpf resumed>) = 4 [pid 435] <... bpf resumed>) = 7 [pid 434] exit_group(0 [pid 437] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 436] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 434] <... exit_group resumed>) = ? [pid 438] <... bpf resumed>) = 4 [pid 437] <... bpf resumed>) = 5 [pid 436] <... bpf resumed>) = 5 [pid 435] exit_group(0 [pid 438] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 437] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 436] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 435] <... exit_group resumed>) = ? [pid 438] <... bpf resumed>) = 5 [pid 437] <... bpf resumed>) = 0 [pid 436] <... bpf resumed>) = 0 [pid 438] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 437] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 438] <... bpf resumed>) = 0 [pid 437] <... bpf resumed>) = 6 [pid 436] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 438] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 437] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 438] <... bpf resumed>) = 6 [pid 436] <... bpf resumed>) = 6 [pid 436] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 438] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 434] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./27/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./27") = 0 [pid 293] mkdir("./28", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 439 ./strace-static-x86_64: Process 439 attached [pid 439] set_robust_list(0x555555cf9760, 24) = 0 [pid 439] chdir("./28") = 0 [pid 439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 439] setpgid(0, 0) = 0 [pid 439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 439] write(3, "1000", 4) = 4 [pid 439] close(3) = 0 [pid 439] symlink("/dev/binderfs", "./binderfs") = 0 [pid 439] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 439] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 438] <... bpf resumed>) = 7 [pid 437] <... bpf resumed>) = 7 [pid 439] <... bpf resumed>) = 4 [pid 438] exit_group(0 [pid 436] <... bpf resumed>) = 7 [pid 435] +++ exited with 0 +++ [pid 438] <... exit_group resumed>) = ? [pid 437] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 439] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 438] +++ exited with 0 +++ [pid 436] exit_group(0 [pid 437] <... exit_group resumed>) = ? [pid 436] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=438, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 439] <... bpf resumed>) = 5 [pid 296] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... openat resumed>) = 3 [pid 439] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(3, "", [pid 439] <... bpf resumed>) = 0 [pid 296] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 439] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... openat resumed>) = 3 [pid 292] getdents64(3, [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, [pid 292] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] newfstatat(AT_FDCWD, "./27/binderfs", [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./26/binderfs", [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./27/binderfs" [pid 296] unlink("./26/binderfs" [pid 292] <... unlink resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 292] getdents64(3, [pid 296] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 292] close(3 [pid 296] <... close resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 296] rmdir("./26" [pid 292] rmdir("./27" [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./27", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 292] mkdir("./28", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 440 ./strace-static-x86_64: Process 440 attached [pid 440] set_robust_list(0x555555cf9760, 24) = 0 [pid 440] chdir("./27") = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 441 [pid 440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 440] setpgid(0, 0) = 0 [pid 440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 440] write(3, "1000", 4 [pid 439] <... bpf resumed>) = 6 [pid 440] <... write resumed>) = 4 [pid 439] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 440] close(3) = 0 [pid 440] symlink("/dev/binderfs", "./binderfs") = 0 [pid 440] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 440] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 441 attached [pid 441] set_robust_list(0x555555cf9760, 24) = 0 [pid 441] chdir("./28") = 0 [pid 441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 441] setpgid(0, 0) = 0 [pid 441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 441] write(3, "1000", 4) = 4 [pid 441] close(3) = 0 [pid 441] symlink("/dev/binderfs", "./binderfs") = 0 [pid 441] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 441] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 437] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=437, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./25/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./25") = 0 [pid 294] mkdir("./26", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 442 ./strace-static-x86_64: Process 442 attached [pid 442] set_robust_list(0x555555cf9760, 24) = 0 [pid 442] chdir("./26") = 0 [pid 442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 442] setpgid(0, 0) = 0 [pid 442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 442] write(3, "1000", 4) = 4 [pid 442] close(3) = 0 [pid 442] symlink("/dev/binderfs", "./binderfs") = 0 [pid 442] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 442] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 439] <... bpf resumed>) = 7 [pid 436] +++ exited with 0 +++ [pid 442] <... bpf resumed>) = 4 [pid 441] <... bpf resumed>) = 4 [pid 440] <... bpf resumed>) = 4 [pid 441] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 439] exit_group(0 [pid 440] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 442] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 441] <... bpf resumed>) = 5 [pid 439] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 441] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 440] <... bpf resumed>) = 5 [pid 441] <... bpf resumed>) = 0 [pid 441] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 442] <... bpf resumed>) = 5 [pid 441] <... bpf resumed>) = 6 [pid 440] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 439] +++ exited with 0 +++ [pid 441] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 440] <... bpf resumed>) = 0 [pid 442] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=439, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 440] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 442] <... bpf resumed>) = 0 [pid 440] <... bpf resumed>) = 6 [pid 442] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 440] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./28/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 293] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] rmdir("./28" [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... rmdir resumed>) = 0 [pid 293] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 442] <... bpf resumed>) = 6 [pid 295] mkdir("./29", 0777 [pid 293] <... openat resumed>) = 3 [pid 295] <... mkdir resumed>) = 0 [pid 442] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] newfstatat(3, "", [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 443 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 443 attached ) = -1 EINVAL (Invalid argument) [pid 443] set_robust_list(0x555555cf9760, 24 [pid 293] newfstatat(AT_FDCWD, "./28/binderfs", [pid 443] <... set_robust_list resumed>) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 443] chdir("./29" [pid 293] unlink("./28/binderfs" [pid 443] <... chdir resumed>) = 0 [pid 443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 443] setpgid(0, 0) = 0 [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3 [pid 443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] <... close resumed>) = 0 [pid 293] rmdir("./28" [pid 443] <... openat resumed>) = 3 [pid 443] write(3, "1000", 4) = 4 [pid 443] close(3) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./29", 0777 [pid 443] symlink("/dev/binderfs", "./binderfs") = 0 [pid 443] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 443] <... bpf resumed>) = 3 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 444 [pid 443] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 444 attached [pid 444] set_robust_list(0x555555cf9760, 24) = 0 [pid 444] chdir("./29") = 0 [pid 444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 444] setpgid(0, 0) = 0 [pid 444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 444] write(3, "1000", 4) = 4 [pid 444] close(3) = 0 [pid 444] symlink("/dev/binderfs", "./binderfs") = 0 [pid 444] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 444] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 442] <... bpf resumed>) = 7 [pid 441] <... bpf resumed>) = 7 [pid 440] <... bpf resumed>) = 7 [pid 443] <... bpf resumed>) = 4 [pid 444] <... bpf resumed>) = 4 [pid 441] exit_group(0 [pid 442] exit_group(0 [pid 440] exit_group(0 [pid 443] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 444] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 443] <... bpf resumed>) = 5 [pid 442] <... exit_group resumed>) = ? [pid 441] <... exit_group resumed>) = ? [pid 440] <... exit_group resumed>) = ? [pid 443] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 444] <... bpf resumed>) = 5 [pid 443] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 444] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 443] <... bpf resumed>) = 6 [pid 444] <... bpf resumed>) = 0 [pid 443] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 444] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 444] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 442] +++ exited with 0 +++ [pid 441] +++ exited with 0 +++ [pid 440] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=440, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=441, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 292] getdents64(3, [pid 296] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(AT_FDCWD, "./27/binderfs", [pid 292] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] newfstatat(AT_FDCWD, "./26/binderfs", [pid 296] unlink("./27/binderfs" [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] unlink("./26/binderfs" [pid 292] newfstatat(AT_FDCWD, "./28/binderfs", [pid 296] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] close(3 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] unlink("./28/binderfs" [pid 296] <... close resumed>) = 0 [pid 294] close(3) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] rmdir("./27" [pid 294] rmdir("./26" [pid 292] getdents64(3, [pid 296] <... rmdir resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] mkdir("./28", 0777 [pid 294] <... rmdir resumed>) = 0 [pid 292] close(3 [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] mkdir("./27", 0777 [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./28"./strace-static-x86_64: Process 445 attached [pid 445] set_robust_list(0x555555cf9760, 24) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 445] chdir("./28" [pid 292] <... rmdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 445 [pid 292] mkdir("./29", 0777 [pid 445] <... chdir resumed>) = 0 [pid 445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 445] setpgid(0, 0) = 0 [pid 445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 445] write(3, "1000", 4) = 4 [pid 292] <... mkdir resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 446 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 445] close(3) = 0 [pid 445] symlink("/dev/binderfs", "./binderfs") = 0 [pid 445] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 447 ./strace-static-x86_64: Process 446 attached [pid 446] set_robust_list(0x555555cf9760, 24 [pid 445] <... bpf resumed>) = 3 [pid 446] <... set_robust_list resumed>) = 0 [pid 445] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 447 attached [pid 447] set_robust_list(0x555555cf9760, 24) = 0 [pid 446] chdir("./27" [pid 447] chdir("./29") = 0 [pid 447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 447] setpgid(0, 0) = 0 [pid 447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 446] <... chdir resumed>) = 0 [pid 447] <... openat resumed>) = 3 [pid 446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 447] write(3, "1000", 4 [pid 446] <... prctl resumed>) = 0 [pid 447] <... write resumed>) = 4 [pid 446] setpgid(0, 0 [pid 447] close(3 [pid 446] <... setpgid resumed>) = 0 [pid 447] <... close resumed>) = 0 [pid 446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 447] symlink("/dev/binderfs", "./binderfs" [pid 446] <... openat resumed>) = 3 [pid 447] <... symlink resumed>) = 0 [pid 446] write(3, "1000", 4) = 4 [pid 447] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 446] close(3) = 0 [pid 447] <... bpf resumed>) = 3 [pid 446] symlink("/dev/binderfs", "./binderfs" [pid 447] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 446] <... symlink resumed>) = 0 [pid 446] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 446] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 443] <... bpf resumed>) = 7 [pid 444] <... bpf resumed>) = 7 [pid 443] exit_group(0 [pid 445] <... bpf resumed>) = 4 [pid 444] exit_group(0 [pid 443] <... exit_group resumed>) = ? [pid 444] <... exit_group resumed>) = ? [pid 445] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 445] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 445] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 445] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 447] <... bpf resumed>) = 4 [pid 446] <... bpf resumed>) = 4 [pid 444] +++ exited with 0 +++ [pid 443] +++ exited with 0 +++ [pid 447] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 446] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=444, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 293] <... restart_syscall resumed>) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 447] <... bpf resumed>) = 5 [pid 446] <... bpf resumed>) = 5 [pid 295] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 447] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 446] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 447] <... bpf resumed>) = 0 [pid 446] <... bpf resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 293] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... openat resumed>) = 3 [pid 447] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 446] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] getdents64(3, [pid 293] newfstatat(3, "", [pid 447] <... bpf resumed>) = 6 [pid 446] <... bpf resumed>) = 6 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 447] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] getdents64(3, [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 446] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] newfstatat(AT_FDCWD, "./29/binderfs", [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] unlink("./29/binderfs" [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... unlink resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./29/binderfs", [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] close(3 [pid 293] unlink("./29/binderfs" [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./29" [pid 293] <... unlink resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./30", 0777 [pid 293] getdents64(3, [pid 295] <... mkdir resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] close(3./strace-static-x86_64: Process 448 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 448 [pid 293] <... close resumed>) = 0 [pid 448] set_robust_list(0x555555cf9760, 24 [pid 293] rmdir("./29" [pid 448] <... set_robust_list resumed>) = 0 [pid 448] chdir("./30") = 0 [pid 293] <... rmdir resumed>) = 0 [pid 448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 293] mkdir("./30", 0777 [pid 448] <... prctl resumed>) = 0 [pid 448] setpgid(0, 0) = 0 [pid 448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 448] write(3, "1000", 4) = 4 [pid 448] close(3) = 0 [pid 448] symlink("/dev/binderfs", "./binderfs") = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 449 [pid 448] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 448] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 449 attached [pid 449] set_robust_list(0x555555cf9760, 24) = 0 [pid 449] chdir("./30") = 0 [pid 449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 449] setpgid(0, 0) = 0 [pid 449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 449] write(3, "1000", 4) = 4 [pid 449] close(3) = 0 [pid 449] symlink("/dev/binderfs", "./binderfs") = 0 [pid 449] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 449] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 447] <... bpf resumed>) = 7 [pid 445] <... bpf resumed>) = 7 [pid 448] <... bpf resumed>) = 4 [pid 447] exit_group(0 [pid 446] <... bpf resumed>) = 7 [pid 449] <... bpf resumed>) = 4 [pid 448] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 447] <... exit_group resumed>) = ? [pid 445] exit_group(0 [pid 449] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 448] <... bpf resumed>) = 5 [pid 447] +++ exited with 0 +++ [pid 446] exit_group(0 [pid 445] <... exit_group resumed>) = ? [pid 449] <... bpf resumed>) = 5 [pid 448] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 446] <... exit_group resumed>) = ? [pid 445] +++ exited with 0 +++ [pid 449] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 448] <... bpf resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 449] <... bpf resumed>) = 0 [pid 448] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 449] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 448] <... bpf resumed>) = 6 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 449] <... bpf resumed>) = 6 [pid 292] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 449] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 296] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] getdents64(3, [pid 296] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... openat resumed>) = 3 [pid 292] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(3, "", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(AT_FDCWD, "./29/binderfs", [pid 296] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] unlink("./29/binderfs" [pid 296] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... unlink resumed>) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] getdents64(3, [pid 296] newfstatat(AT_FDCWD, "./28/binderfs", [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] close(3 [pid 296] unlink("./28/binderfs" [pid 292] <... close resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 292] rmdir("./29" [pid 296] getdents64(3, [pid 292] <... rmdir resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] mkdir("./30", 0777 [pid 448] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] close(3 [pid 292] <... mkdir resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] rmdir("./28") = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 450 [pid 296] mkdir("./29", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 451 ./strace-static-x86_64: Process 451 attached [pid 451] set_robust_list(0x555555cf9760, 24) = 0 [pid 451] chdir("./29") = 0 [pid 451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 451] setpgid(0, 0) = 0 [pid 451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 451] write(3, "1000", 4) = 4 [pid 451] close(3) = 0 [pid 451] symlink("/dev/binderfs", "./binderfs") = 0 [ 23.297782][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 23.313265][ T447] BUG: scheduling while atomic: syz-executor156/447/0x00000002 [ 23.326876][ T447] Modules linked in: [ 23.330615][ T447] Preemption disabled at: [ 23.330623][ T447] [] is_module_text_address+0x1a/0x140 [ 23.341835][ T447] CPU: 0 PID: 447 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 23.353368][ T447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 23.363261][ T447] Call Trace: [ 23.366384][ T447] [ 23.369165][ T447] dump_stack_lvl+0x151/0x1b7 [ 23.373675][ T447] ? is_module_text_address+0x1a/0x140 [ 23.378969][ T447] ? is_module_text_address+0x1a/0x140 [ 23.384265][ T447] ? io_uring_drop_tctx_refs+0x190/0x190 [ 23.389731][ T447] ? _raw_spin_unlock_irqrestore+0x5c/0x80 [ 23.395373][ T447] ? __wake_up_sync_key+0x1b1/0x3d0 [ 23.400411][ T447] ? is_module_text_address+0x1a/0x140 [ 23.405702][ T447] dump_stack+0x15/0x17 [ 23.409694][ T447] __schedule_bug+0x195/0x260 [ 23.414213][ T447] ? ttwu_queue_wakelist+0x510/0x510 [ 23.419331][ T447] ? __send_signal+0x96f/0xcb0 [ 23.423930][ T447] __schedule+0xd19/0x1590 [ 23.428182][ T447] ? __kasan_check_write+0x14/0x20 [ 23.433131][ T447] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 23.438423][ T447] ? __sched_text_start+0x8/0x8 [ 23.443110][ T447] ? _raw_write_lock_irqsave+0x1e0/0x1e0 [ 23.448580][ T447] do_task_dead+0x99/0xa0 [ 23.452744][ T447] do_exit+0x2089/0x2ca0 [ 23.456827][ T447] ? put_task_struct+0x80/0x80 [ 23.461422][ T447] ? ptrace_notify+0x24c/0x350 [ 23.466031][ T447] ? do_notify_parent+0xa30/0xa30 [ 23.470902][ T447] do_group_exit+0x141/0x310 [ 23.475311][ T447] __x64_sys_exit_group+0x3f/0x40 [ 23.480172][ T447] do_syscall_64+0x3d/0xb0 [ 23.484423][ T447] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.490160][ T447] RIP: 0033:0x7f5bb48eda79 [ 23.494403][ T447] Code: Unable to access opcode bytes at RIP 0x7f5bb48eda4f. [ 23.501609][ T447] RSP: 002b:00007ffc13478e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.509855][ T447] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5bb48eda79 [ 23.517664][ T447] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 23.525476][ T447] RBP: 00007f5bb4969370 R08: ffffffffffffffb8 R09: 00007ffc13478f1c [ 23.533289][ T447] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5bb4969370 [ 23.541101][ T447] R13: 0000000000000000 R14: 00007f5bb4969de0 R15: 00007f5bb48be4b0 [pid 451] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 450 attached ) = 3 [pid 449] <... bpf resumed>) = 7 [pid 448] <... bpf resumed>) = 7 [pid 446] +++ exited with 0 +++ [pid 451] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 449] exit_group(0 [pid 448] exit_group(0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=446, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 451] <... bpf resumed>) = 4 [pid 449] <... exit_group resumed>) = ? [pid 448] <... exit_group resumed>) = ? [pid 451] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 294] umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW [pid 451] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 451] <... bpf resumed>) = 0 [pid 294] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 451] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... openat resumed>) = 3 [pid 451] <... bpf resumed>) = 6 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./27/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./27") = 0 [pid 294] mkdir("./28", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 453 [pid 450] set_robust_list(0x555555cf9760, 24) = 0 [pid 450] chdir("./30") = 0 [pid 450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 450] setpgid(0, 0) = 0 [pid 450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 450] write(3, "1000", 4) = 4 [pid 450] close(3) = 0 [pid 450] symlink("/dev/binderfs", "./binderfs") = 0 [pid 450] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 451] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16./strace-static-x86_64: Process 453 attached [pid 453] set_robust_list(0x555555cf9760, 24) = 0 [pid 453] chdir("./28") = 0 [pid 453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 453] setpgid(0, 0) = 0 [pid 453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 453] write(3, "1000", 4) = 4 [pid 453] close(3) = 0 [pid 453] symlink("/dev/binderfs", "./binderfs") = 0 [ 23.548918][ T447] [ 23.553590][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 23.565013][ T82] BUG: scheduling while atomic: syslogd/82/0x00000002 [ 23.572148][ T82] Modules linked in: [ 23.575992][ T82] Preemption disabled at: [ 23.576001][ T82] [] is_module_text_address+0x1a/0x140 [ 23.587407][ T82] CPU: 0 PID: 82 Comm: syslogd Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 23.598162][ T82] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 23.608046][ T82] Call Trace: [ 23.611170][ T82] [ 23.613976][ T82] dump_stack_lvl+0x151/0x1b7 [ 23.618460][ T82] ? is_module_text_address+0x1a/0x140 [ 23.623756][ T82] ? is_module_text_address+0x1a/0x140 [ 23.629051][ T82] ? io_uring_drop_tctx_refs+0x190/0x190 [ 23.634517][ T82] ? is_module_text_address+0x1a/0x140 [ 23.639813][ T82] dump_stack+0x15/0x17 [ 23.643804][ T82] __schedule_bug+0x195/0x260 [ 23.648320][ T82] ? ttwu_queue_wakelist+0x510/0x510 [ 23.653441][ T82] __schedule+0xd19/0x1590 [ 23.657691][ T82] ? __kasan_check_read+0x11/0x20 [ 23.662550][ T82] ? __fdget_pos+0x209/0x3a0 [ 23.666977][ T82] ? __sched_text_start+0x8/0x8 [ 23.671667][ T82] ? ksys_read+0x24f/0x2c0 [ 23.675921][ T82] schedule+0x11f/0x1e0 [ 23.679910][ T82] exit_to_user_mode_loop+0x4d/0xe0 [ 23.684944][ T82] exit_to_user_mode_prepare+0x5a/0xa0 [ 23.690241][ T82] syscall_exit_to_user_mode+0x26/0x160 [ 23.695621][ T82] do_syscall_64+0x49/0xb0 [ 23.699876][ T82] ? sysvec_call_function_single+0x52/0xb0 [ 23.705514][ T82] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.711243][ T82] RIP: 0033:0x7fd0fea58b6a [ 23.715500][ T82] Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 [ 23.734944][ T82] RSP: 002b:00007fffe7501348 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [pid 453] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 450] <... bpf resumed>) = 3 [pid 449] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=449, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 450] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./30/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./30" [pid 453] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./31", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 456 ./strace-static-x86_64: Process 456 attached [pid 456] set_robust_list(0x555555cf9760, 24) = 0 [pid 456] chdir("./31") = 0 [pid 456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 456] setpgid(0, 0) = 0 [pid 456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 456] write(3, "1000", 4) = 4 [pid 456] close(3) = 0 [pid 456] symlink("/dev/binderfs", "./binderfs") = 0 [pid 456] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 456] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 453] <... bpf resumed>) = 4 [pid 451] <... bpf resumed>) = 7 [pid 450] <... bpf resumed>) = 4 [pid 448] +++ exited with 0 +++ [pid 456] <... bpf resumed>) = 4 [pid 453] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 451] exit_group(0 [pid 450] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 456] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 453] <... bpf resumed>) = 5 [pid 451] <... exit_group resumed>) = ? [pid 450] <... bpf resumed>) = 5 [pid 456] <... bpf resumed>) = 5 [pid 453] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 451] +++ exited with 0 +++ [pid 450] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 450] <... bpf resumed>) = 0 [pid 450] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 456] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 453] <... bpf resumed>) = 0 [pid 450] <... bpf resumed>) = 6 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=451, si_uid=0, si_status=0, si_utime=0, si_stime=19} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 450] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 456] <... bpf resumed>) = 0 [pid 453] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... restart_syscall resumed>) = 0 [pid 453] <... bpf resumed>) = 6 [pid 296] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW [pid 453] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 456] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./30/binderfs", [pid 296] newfstatat(AT_FDCWD, "./29/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./30/binderfs" [pid 296] unlink("./29/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 296] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 296] close(3 [pid 295] <... close resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./29" [pid 295] rmdir("./30" [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./30", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] mkdir("./31", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 457 attached [pid 457] set_robust_list(0x555555cf9760, 24) = 0 [pid 457] chdir("./31" [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 457 [pid 457] <... chdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 458 [pid 457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 457] setpgid(0, 0) = 0 [pid 457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 457] write(3, "1000", 4) = 4 [pid 457] close(3) = 0 [pid 457] symlink("/dev/binderfs", "./binderfs") = 0 [pid 456] <... bpf resumed>) = 6 [pid 457] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 456] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 457] <... bpf resumed>) = 3 ./strace-static-x86_64: Process 458 attached [pid 458] set_robust_list(0x555555cf9760, 24) = 0 [pid 458] chdir("./30") = 0 [pid 458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 458] setpgid(0, 0) = 0 [pid 458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 457] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 458] <... openat resumed>) = 3 [pid 458] write(3, "1000", 4) = 4 [pid 458] close(3) = 0 [pid 458] symlink("/dev/binderfs", "./binderfs") = 0 [pid 458] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 458] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 450] <... bpf resumed>) = 7 [pid 457] <... bpf resumed>) = 4 [pid 456] <... bpf resumed>) = 7 [pid 453] <... bpf resumed>) = 7 [pid 450] exit_group(0 [pid 457] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 450] <... exit_group resumed>) = ? [ 23.743184][ T82] RAX: 0000000000000053 RBX: 0000000000000002 RCX: 00007fd0fea58b6a [ 23.750995][ T82] RDX: 00000000000000ff RSI: 0000563aead0f300 RDI: 0000000000000000 [ 23.758805][ T82] RBP: 0000563aead0f2c0 R08: 0000000000000001 R09: 0000000000000000 [ 23.766617][ T82] R10: 00007fd0febf73a3 R11: 0000000000000246 R12: 0000563aead0f35a [ 23.774428][ T82] R13: 0000563aead0f300 R14: 0000000000000000 R15: 00007fd0fec35a80 [ 23.782246][ T82] [pid 456] exit_group(0 [pid 453] exit_group(0 [pid 450] +++ exited with 0 +++ [pid 453] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=450, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 456] <... exit_group resumed>) = ? [pid 453] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=453, si_uid=0, si_status=0, si_utime=0, si_stime=18} --- [pid 292] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./30/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] close(3 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... close resumed>) = 0 [pid 294] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] rmdir("./30" [pid 294] <... openat resumed>) = 3 [pid 292] <... rmdir resumed>) = 0 [pid 294] newfstatat(3, "", [pid 292] mkdir("./31", 0777 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 294] getdents64(3, [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 459 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./28/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./28") = 0 [pid 294] mkdir("./29", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 460 ./strace-static-x86_64: Process 459 attached [pid 459] set_robust_list(0x555555cf9760, 24) = 0 [pid 459] chdir("./31") = 0 [pid 459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 459] setpgid(0, 0) = 0 [pid 459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 460 attached ) = 3 [pid 460] set_robust_list(0x555555cf9760, 24) = 0 [pid 460] chdir("./29" [pid 459] write(3, "1000", 4) = 4 [pid 459] close(3 [pid 460] <... chdir resumed>) = 0 [pid 459] <... close resumed>) = 0 [pid 460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 459] symlink("/dev/binderfs", "./binderfs" [pid 460] <... prctl resumed>) = 0 [pid 460] setpgid(0, 0 [pid 459] <... symlink resumed>) = 0 [pid 460] <... setpgid resumed>) = 0 [pid 460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 459] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 460] write(3, "1000", 4) = 4 [pid 460] close(3 [pid 459] <... bpf resumed>) = 3 [pid 460] <... close resumed>) = 0 [pid 460] symlink("/dev/binderfs", "./binderfs") = 0 [ 23.827716][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 23.840666][ T450] BUG: scheduling while atomic: syz-executor156/450/0x00000002 [ 23.850427][ T450] Modules linked in: [ 23.856128][ T450] Preemption disabled at: [ 23.856140][ T450] [] is_module_text_address+0x1a/0x140 [ 23.868829][ T450] CPU: 0 PID: 450 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 23.881034][ T450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 23.892954][ T450] Call Trace: [ 23.896160][ T450] [ 23.898949][ T450] dump_stack_lvl+0x151/0x1b7 [ 23.903448][ T450] ? is_module_text_address+0x1a/0x140 [ 23.908743][ T450] ? is_module_text_address+0x1a/0x140 [ 23.914039][ T450] ? io_uring_drop_tctx_refs+0x190/0x190 [ 23.919504][ T450] ? _raw_spin_unlock_irqrestore+0x5c/0x80 [ 23.927643][ T450] ? __wake_up_sync_key+0x1b1/0x3d0 [ 23.933909][ T450] ? is_module_text_address+0x1a/0x140 [ 23.940239][ T450] dump_stack+0x15/0x17 [ 23.945916][ T450] __schedule_bug+0x195/0x260 [ 23.952256][ T450] ? ttwu_queue_wakelist+0x510/0x510 [ 23.958727][ T450] ? __send_signal+0x96f/0xcb0 [ 23.964114][ T450] __schedule+0xd19/0x1590 [ 23.969036][ T450] ? __kasan_check_write+0x14/0x20 [ 23.974054][ T450] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 23.979957][ T450] ? __sched_text_start+0x8/0x8 [ 23.984992][ T450] ? _raw_write_lock_irqsave+0x1e0/0x1e0 [ 23.990458][ T450] do_task_dead+0x99/0xa0 [ 23.994623][ T450] do_exit+0x2089/0x2ca0 [ 23.998795][ T450] ? put_task_struct+0x80/0x80 [ 24.003396][ T450] ? ptrace_notify+0x24c/0x350 [ 24.007998][ T450] ? do_notify_parent+0xa30/0xa30 [ 24.012859][ T450] do_group_exit+0x141/0x310 [ 24.017279][ T450] __x64_sys_exit_group+0x3f/0x40 [ 24.022138][ T450] do_syscall_64+0x3d/0xb0 [ 24.026399][ T450] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.032165][ T450] RIP: 0033:0x7f5bb48eda79 [ 24.036371][ T450] Code: Unable to access opcode bytes at RIP 0x7f5bb48eda4f. [ 24.043576][ T450] RSP: 002b:00007ffc13478e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.051819][ T450] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5bb48eda79 [ 24.059638][ T450] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 24.067445][ T450] RBP: 00007f5bb4969370 R08: ffffffffffffffb8 R09: 00007ffc13478f1c [pid 460] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 459] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 457] <... bpf resumed>) = 5 [pid 456] +++ exited with 0 +++ [pid 457] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=456, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 457] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 460] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 457] <... bpf resumed>) = 6 [pid 293] <... restart_syscall resumed>) = 0 [pid 457] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./31/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./31") = 0 [pid 293] mkdir("./32", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 461 ./strace-static-x86_64: Process 461 attached [pid 461] set_robust_list(0x555555cf9760, 24) = 0 [pid 461] chdir("./32") = 0 [pid 461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 461] setpgid(0, 0) = 0 [pid 461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 461] write(3, "1000", 4) = 4 [pid 461] close(3) = 0 [pid 461] symlink("/dev/binderfs", "./binderfs") = 0 [pid 461] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 461] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 460] <... bpf resumed>) = 4 [pid 459] <... bpf resumed>) = 4 [pid 458] <... bpf resumed>) = 4 [pid 458] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 457] <... bpf resumed>) = 7 [pid 458] <... bpf resumed>) = 5 [pid 460] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 459] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 457] exit_group(0 [pid 461] <... bpf resumed>) = 4 [pid 460] <... bpf resumed>) = 5 [pid 459] <... bpf resumed>) = 5 [pid 458] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 457] <... exit_group resumed>) = ? [pid 460] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 459] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 458] <... bpf resumed>) = 0 [pid 460] <... bpf resumed>) = 0 [pid 459] <... bpf resumed>) = 0 [pid 460] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 459] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 461] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 460] <... bpf resumed>) = 6 [pid 459] <... bpf resumed>) = 6 [pid 458] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 457] +++ exited with 0 +++ [pid 461] <... bpf resumed>) = 5 [pid 460] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 459] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 458] <... bpf resumed>) = 6 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 458] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./31/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./31") = 0 [pid 295] mkdir("./32", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 462 ./strace-static-x86_64: Process 462 attached [pid 462] set_robust_list(0x555555cf9760, 24) = 0 [pid 462] chdir("./32") = 0 [pid 462] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 461] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 462] <... prctl resumed>) = 0 [pid 461] <... bpf resumed>) = 0 [pid 462] setpgid(0, 0 [pid 461] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 462] <... setpgid resumed>) = 0 [pid 462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 461] <... bpf resumed>) = 6 [pid 460] <... bpf resumed>) = 7 [pid 459] <... bpf resumed>) = 7 [pid 458] <... bpf resumed>) = 7 [pid 461] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 462] write(3, "1000", 4 [pid 460] exit_group(0 [pid 459] exit_group(0 [pid 458] exit_group(0 [pid 462] <... write resumed>) = 4 [pid 460] <... exit_group resumed>) = ? [pid 459] <... exit_group resumed>) = ? [pid 458] <... exit_group resumed>) = ? [pid 458] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=458, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 462] close(3) = 0 [pid 462] symlink("/dev/binderfs", "./binderfs") = 0 [pid 462] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... restart_syscall resumed>) = 0 [pid 296] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 462] <... bpf resumed>) = 3 [pid 296] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./30/binderfs") = 0 [pid 462] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./30") = 0 [pid 296] mkdir("./31", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 463 attached , child_tidptr=0x555555cf9750) = 463 [pid 463] set_robust_list(0x555555cf9760, 24) = 0 [pid 463] chdir("./31") = 0 [pid 463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 463] setpgid(0, 0) = 0 [pid 463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 463] write(3, "1000", 4) = 4 [pid 463] close(3) = 0 [pid 463] symlink("/dev/binderfs", "./binderfs") = 0 [pid 463] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [ 24.075265][ T450] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5bb4969370 [ 24.083065][ T450] R13: 0000000000000000 R14: 00007f5bb4969de0 R15: 00007f5bb48be4b0 [ 24.090883][ T450] [pid 463] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 460] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=460, si_uid=0, si_status=0, si_utime=0, si_stime=21} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./29/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./29") = 0 [pid 294] mkdir("./30", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 464 ./strace-static-x86_64: Process 464 attached [pid 464] set_robust_list(0x555555cf9760, 24) = 0 [pid 464] chdir("./30") = 0 [pid 464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 464] setpgid(0, 0) = 0 [pid 464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 464] write(3, "1000", 4) = 4 [pid 464] close(3) = 0 [pid 464] symlink("/dev/binderfs", "./binderfs") = 0 [pid 464] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 464] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 461] <... bpf resumed>) = 7 [pid 459] +++ exited with 0 +++ [pid 464] <... bpf resumed>) = 4 [pid 463] <... bpf resumed>) = 4 [pid 462] <... bpf resumed>) = 4 [pid 461] exit_group(0 [pid 463] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 462] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 461] <... exit_group resumed>) = ? [pid 464] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 463] <... bpf resumed>) = 5 [pid 462] <... bpf resumed>) = 5 [pid 461] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 463] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 462] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=461, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 464] <... bpf resumed>) = 5 [pid 463] <... bpf resumed>) = 0 [pid 462] <... bpf resumed>) = 0 [pid 464] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] <... restart_syscall resumed>) = 0 [pid 463] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 462] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 464] <... bpf resumed>) = 0 [pid 463] <... bpf resumed>) = 6 [pid 462] <... bpf resumed>) = 6 [pid 293] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW [pid 464] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 463] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 462] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... openat resumed>) = 3 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 293] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] newfstatat(AT_FDCWD, "./32/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./31/binderfs", [pid 293] unlink("./32/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... unlink resumed>) = 0 [pid 292] unlink("./31/binderfs" [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 293] close(3 [pid 292] getdents64(3, [pid 293] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] rmdir("./32" [pid 292] close(3 [pid 293] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 293] mkdir("./33", 0777 [pid 292] rmdir("./31" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 464] <... bpf resumed>) = 6 [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./32", 0777 [pid 464] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 465 ./strace-static-x86_64: Process 465 attached [pid 465] set_robust_list(0x555555cf9760, 24) = 0 [pid 465] chdir("./33" [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 465] <... chdir resumed>) = 0 [pid 465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 465] setpgid(0, 0) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 466 [pid 465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 465] write(3, "1000", 4) = 4 [pid 465] close(3) = 0 [pid 465] symlink("/dev/binderfs", "./binderfs") = 0 [pid 465] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 465] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 466 attached [pid 466] set_robust_list(0x555555cf9760, 24) = 0 [pid 466] chdir("./32") = 0 [pid 466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 466] setpgid(0, 0) = 0 [pid 466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 466] write(3, "1000", 4) = 4 [pid 466] close(3) = 0 [pid 466] symlink("/dev/binderfs", "./binderfs") = 0 [pid 466] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 466] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 463] <... bpf resumed>) = 7 [pid 462] <... bpf resumed>) = 7 [pid 465] <... bpf resumed>) = 4 [pid 464] <... bpf resumed>) = 7 [pid 463] exit_group(0 [pid 462] exit_group(0 [pid 465] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 463] <... exit_group resumed>) = ? [pid 462] <... exit_group resumed>) = ? [pid 464] exit_group(0 [pid 465] <... bpf resumed>) = 5 [pid 462] +++ exited with 0 +++ [pid 464] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=462, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 465] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 465] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 465] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./32/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./32") = 0 [pid 295] mkdir("./33", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 467 ./strace-static-x86_64: Process 467 attached [pid 467] set_robust_list(0x555555cf9760, 24) = 0 [pid 467] chdir("./33") = 0 [pid 467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 467] setpgid(0, 0) = 0 [pid 467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 467] write(3, "1000", 4) = 4 [pid 467] close(3) = 0 [pid 467] symlink("/dev/binderfs", "./binderfs") = 0 [pid 467] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 467] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 466] <... bpf resumed>) = 4 [pid 463] +++ exited with 0 +++ [pid 466] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 466] <... bpf resumed>) = 5 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 466] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 466] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... restart_syscall resumed>) = 0 [pid 466] <... bpf resumed>) = 6 [pid 466] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./31/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./31") = 0 [pid 296] mkdir("./32", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 468 ./strace-static-x86_64: Process 468 attached [pid 468] set_robust_list(0x555555cf9760, 24) = 0 [pid 468] chdir("./32") = 0 [pid 468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 468] setpgid(0, 0) = 0 [pid 468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 468] write(3, "1000", 4) = 4 [pid 468] close(3) = 0 [pid 468] symlink("/dev/binderfs", "./binderfs") = 0 [pid 468] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 468] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 467] <... bpf resumed>) = 4 [pid 468] <... bpf resumed>) = 4 [pid 466] <... bpf resumed>) = 7 [pid 465] <... bpf resumed>) = 7 [pid 464] +++ exited with 0 +++ [pid 467] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 466] exit_group(0 [pid 465] exit_group(0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=464, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 468] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 467] <... bpf resumed>) = 5 [pid 466] <... exit_group resumed>) = ? [pid 465] <... exit_group resumed>) = ? [pid 468] <... bpf resumed>) = 5 [pid 467] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 468] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 467] <... bpf resumed>) = 0 [pid 468] <... bpf resumed>) = 0 [pid 467] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 468] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 467] <... bpf resumed>) = 6 [pid 467] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./30/binderfs" [pid 468] <... bpf resumed>) = 6 [pid 294] <... unlink resumed>) = 0 [pid 468] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./30") = 0 [pid 294] mkdir("./31", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 469 ./strace-static-x86_64: Process 469 attached [pid 469] set_robust_list(0x555555cf9760, 24) = 0 [pid 469] chdir("./31") = 0 [pid 469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 469] setpgid(0, 0) = 0 [pid 469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 469] write(3, "1000", 4) = 4 [pid 469] close(3) = 0 [pid 469] symlink("/dev/binderfs", "./binderfs") = 0 [pid 469] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 469] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 466] +++ exited with 0 +++ [pid 465] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=466, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 293] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 293] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 292] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./33/binderfs", [pid 292] newfstatat(AT_FDCWD, "./32/binderfs", [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./33/binderfs" [pid 292] unlink("./32/binderfs" [pid 293] <... unlink resumed>) = 0 [pid 292] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 292] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3 [pid 292] close(3 [pid 293] <... close resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 293] rmdir("./33" [pid 292] rmdir("./32" [pid 293] <... rmdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 293] mkdir("./34", 0777 [pid 292] mkdir("./33", 0777 [pid 293] <... mkdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 470 attached [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 470 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 471 ./strace-static-x86_64: Process 471 attached [pid 471] set_robust_list(0x555555cf9760, 24) = 0 [pid 471] chdir("./33") = 0 [pid 471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 471] setpgid(0, 0) = 0 [pid 471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 471] write(3, "1000", 4) = 4 [pid 471] close(3) = 0 [pid 471] symlink("/dev/binderfs", "./binderfs" [pid 470] set_robust_list(0x555555cf9760, 24) = 0 [pid 471] <... symlink resumed>) = 0 [pid 471] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 470] chdir("./34") = 0 [pid 470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 470] setpgid(0, 0) = 0 [pid 471] <... bpf resumed>) = 3 [pid 471] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 470] write(3, "1000", 4) = 4 [pid 470] close(3) = 0 [pid 470] symlink("/dev/binderfs", "./binderfs") = 0 [pid 470] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 470] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 468] <... bpf resumed>) = 7 [pid 467] <... bpf resumed>) = 7 [pid 469] <... bpf resumed>) = 4 [pid 471] <... bpf resumed>) = 4 [pid 470] <... bpf resumed>) = 4 [pid 468] exit_group(0 [pid 467] exit_group(0 [pid 469] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 471] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 470] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 468] <... exit_group resumed>) = ? [pid 467] <... exit_group resumed>) = ? [pid 471] <... bpf resumed>) = 5 [pid 469] <... bpf resumed>) = 5 [pid 468] +++ exited with 0 +++ [pid 469] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 467] +++ exited with 0 +++ [pid 469] <... bpf resumed>) = 0 [pid 469] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 471] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 470] <... bpf resumed>) = 5 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=468, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=467, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 469] <... bpf resumed>) = 6 [pid 471] <... bpf resumed>) = 0 [pid 469] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 471] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 470] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 471] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./32/binderfs", [pid 295] newfstatat(AT_FDCWD, "./33/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./32/binderfs" [pid 295] unlink("./33/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] getdents64(3, [pid 296] close(3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 470] <... bpf resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 295] close(3 [pid 470] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] rmdir("./32" [pid 295] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] rmdir("./33" [pid 296] mkdir("./33", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] mkdir("./34", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 472 ./strace-static-x86_64: Process 472 attached [pid 472] set_robust_list(0x555555cf9760, 24) = 0 [pid 472] chdir("./33") = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 473 [pid 472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 472] setpgid(0, 0) = 0 [pid 472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 470] <... bpf resumed>) = 6 [pid 470] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 472] write(3, "1000", 4) = 4 [pid 472] close(3) = 0 [pid 472] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 473 attached [pid 472] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 473] set_robust_list(0x555555cf9760, 24) = 0 [pid 472] <... bpf resumed>) = 3 [pid 472] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 473] chdir("./34") = 0 [pid 473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 473] setpgid(0, 0) = 0 [pid 473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 473] write(3, "1000", 4) = 4 [pid 473] close(3) = 0 [pid 473] symlink("/dev/binderfs", "./binderfs") = 0 [pid 473] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 473] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 469] <... bpf resumed>) = 7 [pid 472] <... bpf resumed>) = 4 [pid 471] <... bpf resumed>) = 7 [pid 470] <... bpf resumed>) = 7 [pid 469] exit_group(0 [pid 473] <... bpf resumed>) = 4 [pid 472] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 470] exit_group(0 [pid 469] <... exit_group resumed>) = ? [pid 471] exit_group(0 [pid 473] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 472] <... bpf resumed>) = 5 [pid 470] <... exit_group resumed>) = ? [pid 469] +++ exited with 0 +++ [pid 471] <... exit_group resumed>) = ? [pid 473] <... bpf resumed>) = 5 [pid 472] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 472] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 473] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 472] <... bpf resumed>) = 6 [pid 473] <... bpf resumed>) = 0 [pid 472] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 473] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 473] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./31/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./31") = 0 [pid 294] mkdir("./32", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 474 ./strace-static-x86_64: Process 474 attached [pid 474] set_robust_list(0x555555cf9760, 24) = 0 [pid 474] chdir("./32") = 0 [pid 474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 474] setpgid(0, 0) = 0 [pid 474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 474] write(3, "1000", 4) = 4 [pid 474] close(3) = 0 [pid 474] symlink("/dev/binderfs", "./binderfs") = 0 [pid 474] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 474] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 471] +++ exited with 0 +++ [pid 470] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=470, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=471, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 292] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 292] <... openat resumed>) = 3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] newfstatat(3, "", [pid 293] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] getdents64(3, [pid 293] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] unlink("./34/binderfs") = 0 [pid 292] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] close(3) = 0 [pid 292] newfstatat(AT_FDCWD, "./33/binderfs", [pid 293] rmdir("./34") = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] mkdir("./35", 0777 [pid 292] unlink("./33/binderfs" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 475 attached [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 475 [pid 475] set_robust_list(0x555555cf9760, 24 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./33") = 0 [pid 292] mkdir("./34", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 475] <... set_robust_list resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 476 ./strace-static-x86_64: Process 476 attached [pid 476] set_robust_list(0x555555cf9760, 24 [pid 475] chdir("./35" [pid 476] <... set_robust_list resumed>) = 0 [pid 475] <... chdir resumed>) = 0 [pid 476] chdir("./34") = 0 [pid 476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 476] setpgid(0, 0) = 0 [pid 476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 476] <... openat resumed>) = 3 [pid 475] setpgid(0, 0 [pid 476] write(3, "1000", 4) = 4 [pid 476] close(3) = 0 [pid 476] symlink("/dev/binderfs", "./binderfs" [pid 475] <... setpgid resumed>) = 0 [pid 475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 476] <... symlink resumed>) = 0 [pid 475] <... openat resumed>) = 3 [pid 476] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 475] write(3, "1000", 4) = 4 [pid 475] close(3) = 0 [pid 475] symlink("/dev/binderfs", "./binderfs") = 0 [pid 476] <... bpf resumed>) = 3 [pid 476] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 475] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 475] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 473] <... bpf resumed>) = 7 [pid 472] <... bpf resumed>) = 7 [pid 474] <... bpf resumed>) = 4 [pid 473] exit_group(0) = ? [pid 474] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 473] +++ exited with 0 +++ [pid 472] exit_group(0 [pid 476] <... bpf resumed>) = 4 [pid 474] <... bpf resumed>) = 5 [pid 472] <... exit_group resumed>) = ? [pid 474] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 476] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 476] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 476] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 475] <... bpf resumed>) = 4 [pid 474] <... bpf resumed>) = 0 [pid 472] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=473, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 474] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 476] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... restart_syscall resumed>) = 0 [pid 474] <... bpf resumed>) = 6 [pid 475] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 474] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 475] <... bpf resumed>) = 5 [pid 296] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./33/binderfs", [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] newfstatat(AT_FDCWD, "./34/binderfs", [pid 296] unlink("./33/binderfs" [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] unlink("./34/binderfs" [pid 296] getdents64(3, [pid 475] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] close(3 [pid 295] getdents64(3, [pid 475] <... bpf resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 475] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] rmdir("./33" [pid 295] close(3 [pid 296] <... rmdir resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 296] mkdir("./34", 0777 [pid 295] rmdir("./34" [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./35", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 477 ./strace-static-x86_64: Process 477 attached [pid 477] set_robust_list(0x555555cf9760, 24) = 0 [pid 477] chdir("./34" [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 477] <... chdir resumed>) = 0 [pid 477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 477] setpgid(0, 0) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 478 [pid 477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 477] write(3, "1000", 4) = 4 [pid 477] close(3 [pid 475] <... bpf resumed>) = 6 [pid 477] <... close resumed>) = 0 [pid 477] symlink("/dev/binderfs", "./binderfs" [pid 475] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 477] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 478 attached [pid 477] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 478] set_robust_list(0x555555cf9760, 24) = 0 [pid 477] <... bpf resumed>) = 3 [pid 477] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 478] chdir("./35") = 0 [pid 478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 478] setpgid(0, 0) = 0 [pid 478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 478] write(3, "1000", 4) = 4 [pid 478] close(3) = 0 [pid 478] symlink("/dev/binderfs", "./binderfs") = 0 [pid 478] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 478] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 476] <... bpf resumed>) = 7 [pid 476] exit_group(0) = ? [pid 474] <... bpf resumed>) = 7 [pid 478] <... bpf resumed>) = 4 [pid 477] <... bpf resumed>) = 4 [pid 476] +++ exited with 0 +++ [pid 475] <... bpf resumed>) = 7 [pid 478] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 477] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 475] exit_group(0 [pid 474] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=476, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 474] <... exit_group resumed>) = ? [pid 477] <... bpf resumed>) = 5 [pid 475] <... exit_group resumed>) = ? [pid 478] <... bpf resumed>) = 5 [pid 478] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 477] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 292] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 478] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 477] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 478] <... bpf resumed>) = 6 [pid 477] <... bpf resumed>) = 6 [pid 292] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 478] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 477] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./34/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./34") = 0 [pid 292] mkdir("./35", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 479 ./strace-static-x86_64: Process 479 attached [pid 479] set_robust_list(0x555555cf9760, 24) = 0 [pid 479] chdir("./35") = 0 [pid 479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 479] setpgid(0, 0) = 0 [pid 479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 479] write(3, "1000", 4) = 4 [pid 479] close(3) = 0 [pid 479] symlink("/dev/binderfs", "./binderfs") = 0 [pid 479] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 479] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 474] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=474, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./32/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./32") = 0 [pid 294] mkdir("./33", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 480 ./strace-static-x86_64: Process 480 attached [pid 480] set_robust_list(0x555555cf9760, 24) = 0 [pid 480] chdir("./33") = 0 [pid 480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 480] setpgid(0, 0) = 0 [pid 480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 480] write(3, "1000", 4) = 4 [pid 480] close(3) = 0 [pid 480] symlink("/dev/binderfs", "./binderfs") = 0 [pid 480] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 480] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 478] <... bpf resumed>) = 7 [pid 477] <... bpf resumed>) = 7 [pid 480] <... bpf resumed>) = 4 [pid 479] <... bpf resumed>) = 4 [pid 478] exit_group(0 [pid 475] +++ exited with 0 +++ [pid 479] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 478] <... exit_group resumed>) = ? [pid 477] exit_group(0 [pid 480] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 479] <... bpf resumed>) = 5 [pid 477] <... exit_group resumed>) = ? [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 480] <... bpf resumed>) = 5 [pid 479] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 480] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 479] <... bpf resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 479] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 480] <... bpf resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 479] <... bpf resumed>) = 6 [pid 480] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 479] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./35/binderfs") = 0 [pid 293] getdents64(3, [pid 480] <... bpf resumed>) = 6 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 480] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] close(3) = 0 [pid 293] rmdir("./35") = 0 [pid 293] mkdir("./36", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 481 ./strace-static-x86_64: Process 481 attached [pid 481] set_robust_list(0x555555cf9760, 24) = 0 [pid 481] chdir("./36") = 0 [pid 481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 481] setpgid(0, 0) = 0 [ 24.404318][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 24.415724][ T481] BUG: scheduling while atomic: syz-executor156/481/0x00000002 [ 24.423254][ T481] Modules linked in: [ 24.426902][ T481] Preemption disabled at: [ 24.426907][ T481] [] is_module_text_address+0x1a/0x140 [ 24.437917][ T481] CPU: 0 PID: 481 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 24.449387][ T481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 24.459254][ T481] Call Trace: [ 24.462380][ T481] [ 24.465158][ T481] dump_stack_lvl+0x151/0x1b7 [ 24.469669][ T481] ? is_module_text_address+0x1a/0x140 [ 24.474966][ T481] ? is_module_text_address+0x1a/0x140 [ 24.480269][ T481] ? io_uring_drop_tctx_refs+0x190/0x190 [ 24.485813][ T481] ? is_module_text_address+0x1a/0x140 [ 24.491106][ T481] dump_stack+0x15/0x17 [ 24.495100][ T481] __schedule_bug+0x195/0x260 [ 24.499622][ T481] ? ttwu_queue_wakelist+0x510/0x510 [ 24.504739][ T481] __schedule+0xd19/0x1590 [ 24.508989][ T481] ? __kasan_check_write+0x14/0x20 [ 24.513934][ T481] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.518881][ T481] ? __sched_text_start+0x8/0x8 [ 24.523576][ T481] ? cgroup_update_frozen+0x15f/0x980 [ 24.532128][ T481] ? putname+0xfa/0x150 [ 24.540077][ T481] schedule+0x11f/0x1e0 [ 24.547203][ T481] ptrace_stop+0x4ea/0xa90 [ 24.552068][ T481] ptrace_notify+0x22b/0x350 [ 24.556501][ T481] ? do_notify_parent+0xa30/0xa30 [ 24.561430][ T481] ? __x64_sys_openat+0x243/0x290 [ 24.566303][ T481] ? __ia32_sys_open+0x270/0x270 [ 24.571068][ T481] syscall_exit_to_user_mode+0xac/0x160 [ 24.576447][ T481] do_syscall_64+0x49/0xb0 [ 24.580696][ T481] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.586425][ T481] RIP: 0033:0x7f5bb48eea51 [ 24.590679][ T481] Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 3a 96 07 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 93 00 00 00 48 8b 54 24 28 64 48 2b 14 25 [ 24.610121][ T481] RSP: 002b:00007ffc13478990 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 24.618365][ T481] RAX: 0000000000000003 RBX: 0000000000080001 RCX: 00007f5bb48eea51 [ 24.626175][ T481] RDX: 0000000000080001 RSI: 00007f5bb4939125 RDI: 00000000ffffff9c [ 24.633988][ T481] RBP: 00007f5bb4939125 R08: 0000000000000000 R09: 0000000000000000 [ 24.641805][ T481] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc13478a30 [pid 481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 481] write(3, "1000", 4 [pid 478] +++ exited with 0 +++ [pid 481] <... write resumed>) = 4 [pid 481] close(3) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=478, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 481] symlink("/dev/binderfs", "./binderfs") = 0 [pid 295] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 481] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 481] <... bpf resumed>) = 3 [pid 295] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 481] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 295] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./35/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./35") = 0 [pid 295] mkdir("./36", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 482 attached , child_tidptr=0x555555cf9750) = 482 [pid 482] set_robust_list(0x555555cf9760, 24) = 0 [pid 482] chdir("./36") = 0 [pid 482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 482] setpgid(0, 0) = 0 [pid 482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 482] write(3, "1000", 4) = 4 [pid 482] close(3) = 0 [pid 482] symlink("/dev/binderfs", "./binderfs") = 0 [pid 482] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 482] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 479] <... bpf resumed>) = 7 [pid 480] <... bpf resumed>) = 7 [pid 479] exit_group(0 [pid 477] +++ exited with 0 +++ [pid 479] <... exit_group resumed>) = ? [pid 481] <... bpf resumed>) = 4 [pid 480] exit_group(0) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 481] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 296] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW [pid 481] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 481] <... bpf resumed>) = 0 [pid 296] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 481] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./34/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./34") = 0 [pid 296] mkdir("./35", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 483 attached [pid 483] set_robust_list(0x555555cf9760, 24) = 0 [pid 481] <... bpf resumed>) = 6 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 483 [pid 483] chdir("./35" [pid 481] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 483] <... chdir resumed>) = 0 [pid 483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 483] setpgid(0, 0) = 0 [ 24.649609][ T481] R13: 00007ffc13478f50 R14: 00007ffc13478f30 R15: 0000000000000024 [ 24.657425][ T481] [pid 483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 483] write(3, "1000", 4) = 4 [pid 483] close(3) = 0 [pid 483] symlink("/dev/binderfs", "./binderfs") = 0 [pid 483] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 483] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 482] <... bpf resumed>) = 4 [pid 480] +++ exited with 0 +++ [pid 479] +++ exited with 0 +++ [pid 482] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=480, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=479, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 482] <... bpf resumed>) = 5 [pid 482] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 482] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 294] umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 482] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 292] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./33/binderfs", [pid 292] newfstatat(AT_FDCWD, "./35/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./33/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... unlink resumed>) = 0 [pid 292] unlink("./35/binderfs" [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 292] getdents64(3, [pid 294] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... close resumed>) = 0 [pid 292] close(3 [pid 294] rmdir("./33" [pid 292] <... close resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 292] rmdir("./35" [pid 294] mkdir("./34", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 292] mkdir("./36", 0777 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 484 ./strace-static-x86_64: Process 484 attached [pid 484] set_robust_list(0x555555cf9760, 24) = 0 [pid 484] chdir("./34" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 485 [pid 484] <... chdir resumed>) = 0 [pid 484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 484] setpgid(0, 0) = 0 [pid 484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 484] write(3, "1000", 4) = 4 [pid 484] close(3) = 0 [pid 484] symlink("/dev/binderfs", "./binderfs") = 0 [pid 484] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 484] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 485 attached [pid 485] set_robust_list(0x555555cf9760, 24) = 0 [pid 485] chdir("./36") = 0 [pid 485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 485] setpgid(0, 0) = 0 [pid 485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 485] write(3, "1000", 4) = 4 [pid 485] close(3) = 0 [pid 485] symlink("/dev/binderfs", "./binderfs") = 0 [pid 485] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 485] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 481] <... bpf resumed>) = 7 [pid 481] exit_group(0) = ? [pid 483] <... bpf resumed>) = 4 [pid 482] <... bpf resumed>) = 7 [pid 483] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 482] exit_group(0 [pid 483] <... bpf resumed>) = 5 [pid 482] <... exit_group resumed>) = ? [pid 483] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 483] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 482] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=482, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./36/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./36") = 0 [pid 295] mkdir("./37", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 486 [pid 485] <... bpf resumed>) = 4 [pid 484] <... bpf resumed>) = 4 [pid 485] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [ 24.738692][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 24.750464][ T482] BUG: scheduling while atomic: syz-executor156/482/0x00000002 [ 24.757968][ T482] Modules linked in: [ 24.762246][ T482] Preemption disabled at: [ 24.762256][ T482] [] is_module_text_address+0x1a/0x140 [ 24.776670][ T482] CPU: 0 PID: 482 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [pid 484] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 485] <... bpf resumed>) = 5 [pid 484] <... bpf resumed>) = 5 [pid 485] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 484] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 485] <... bpf resumed>) = 0 [pid 484] <... bpf resumed>) = 0 [ 24.788986][ T482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 24.798973][ T482] Call Trace: [ 24.802086][ T482] [ 24.804862][ T482] dump_stack_lvl+0x151/0x1b7 [ 24.809373][ T482] ? is_module_text_address+0x1a/0x140 [ 24.814667][ T482] ? is_module_text_address+0x1a/0x140 [ 24.819963][ T482] ? io_uring_drop_tctx_refs+0x190/0x190 [ 24.825438][ T482] ? _raw_spin_unlock_irqrestore+0x5c/0x80 [ 24.831075][ T482] ? __wake_up_sync_key+0x1b1/0x3d0 [ 24.836196][ T482] ? is_module_text_address+0x1a/0x140 [ 24.841487][ T482] dump_stack+0x15/0x17 [ 24.845487][ T482] __schedule_bug+0x195/0x260 [ 24.849994][ T482] ? ttwu_queue_wakelist+0x510/0x510 [ 24.855113][ T482] ? __send_signal+0x96f/0xcb0 [ 24.859722][ T482] __schedule+0xd19/0x1590 [ 24.863969][ T482] ? __kasan_check_write+0x14/0x20 [ 24.868915][ T482] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 24.874209][ T482] ? __sched_text_start+0x8/0x8 [ 24.878896][ T482] ? _raw_write_lock_irqsave+0x1e0/0x1e0 [ 24.884470][ T482] do_task_dead+0x99/0xa0 [ 24.888620][ T482] do_exit+0x2089/0x2ca0 [ 24.892699][ T482] ? put_task_struct+0x80/0x80 [ 24.897295][ T482] ? ptrace_notify+0x24c/0x350 [ 24.901909][ T482] ? do_notify_parent+0xa30/0xa30 [ 24.906760][ T482] do_group_exit+0x141/0x310 [ 24.911183][ T482] __x64_sys_exit_group+0x3f/0x40 [ 24.916048][ T482] do_syscall_64+0x3d/0xb0 [ 24.920298][ T482] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.926024][ T482] RIP: 0033:0x7f5bb48eda79 [ 24.930282][ T482] Code: Unable to access opcode bytes at RIP 0x7f5bb48eda4f. [pid 485] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 484] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 486 attached [pid 485] <... bpf resumed>) = 6 [pid 484] <... bpf resumed>) = 6 [pid 481] +++ exited with 0 +++ [pid 485] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 484] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=481, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 483] <... bpf resumed>) = 6 [pid 483] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 486] set_robust_list(0x555555cf9760, 24) = 0 [pid 486] chdir("./37") = 0 [pid 486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 486] setpgid(0, 0) = 0 [pid 486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 486] write(3, "1000", 4) = 4 [pid 486] close(3) = 0 [pid 486] symlink("/dev/binderfs", "./binderfs" [pid 293] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 486] <... symlink resumed>) = 0 [pid 486] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 486] <... bpf resumed>) = 3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 486] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./36/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./36") = 0 [pid 293] mkdir("./37", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 488 ./strace-static-x86_64: Process 488 attached [pid 488] set_robust_list(0x555555cf9760, 24) = 0 [pid 488] chdir("./37") = 0 [pid 488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 488] setpgid(0, 0) = 0 [pid 488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 488] write(3, "1000", 4) = 4 [pid 488] close(3) = 0 [pid 488] symlink("/dev/binderfs", "./binderfs") = 0 [pid 488] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 488] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 484] <... bpf resumed>) = 7 [pid 486] <... bpf resumed>) = 4 [pid 485] <... bpf resumed>) = 7 [pid 484] exit_group(0 [pid 483] <... bpf resumed>) = 7 [pid 486] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 484] <... exit_group resumed>) = ? [pid 486] <... bpf resumed>) = 5 [pid 485] exit_group(0 [pid 484] +++ exited with 0 +++ [pid 483] exit_group(0 [pid 486] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 485] <... exit_group resumed>) = ? [pid 483] <... exit_group resumed>) = ? [pid 486] <... bpf resumed>) = 0 [pid 486] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 488] <... bpf resumed>) = 4 [pid 486] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 488] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 488] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 488] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 488] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./34/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./34") = 0 [pid 294] mkdir("./35", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 489 attached [pid 489] set_robust_list(0x555555cf9760, 24) = 0 [pid 489] chdir("./35") = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 489 [pid 489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 489] setpgid(0, 0) = 0 [pid 489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 489] write(3, "1000", 4) = 4 [pid 489] close(3) = 0 [pid 489] symlink("/dev/binderfs", "./binderfs") = 0 [pid 489] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [ 24.937484][ T482] RSP: 002b:00007ffc13478e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.945726][ T482] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5bb48eda79 [ 24.953539][ T482] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 24.961350][ T482] RBP: 00007f5bb4969370 R08: ffffffffffffffb8 R09: 00007ffc13478f1c [ 24.969160][ T482] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5bb4969370 [ 24.976972][ T482] R13: 0000000000000000 R14: 00007f5bb4969de0 R15: 00007f5bb48be4b0 [ 24.984788][ T482] [pid 489] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 486] <... bpf resumed>) = 7 [pid 483] +++ exited with 0 +++ [pid 486] exit_group(0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=483, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 486] <... exit_group resumed>) = ? [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./35/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./35") = 0 [pid 296] mkdir("./36", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 490 ./strace-static-x86_64: Process 490 attached [pid 490] set_robust_list(0x555555cf9760, 24) = 0 [pid 490] chdir("./36") = 0 [pid 490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 490] setpgid(0, 0) = 0 [pid 490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 490] write(3, "1000", 4) = 4 [pid 490] close(3) = 0 [pid 490] symlink("/dev/binderfs", "./binderfs") = 0 [pid 490] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 490] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 485] +++ exited with 0 +++ [pid 489] <... bpf resumed>) = 4 [pid 488] <... bpf resumed>) = 7 [pid 489] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 488] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=485, si_uid=0, si_status=0, si_utime=0, si_stime=21} --- [pid 489] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 488] <... exit_group resumed>) = ? [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 489] <... bpf resumed>) = 0 [pid 489] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 292] <... restart_syscall resumed>) = 0 [pid 489] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./36/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./36") = 0 [pid 292] mkdir("./37", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 491 ./strace-static-x86_64: Process 491 attached [pid 491] set_robust_list(0x555555cf9760, 24) = 0 [pid 491] chdir("./37") = 0 [pid 491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 491] setpgid(0, 0) = 0 [pid 491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 491] write(3, "1000", 4) = 4 [pid 491] close(3) = 0 [pid 491] symlink("/dev/binderfs", "./binderfs") = 0 [pid 491] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 491] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 490] <... bpf resumed>) = 4 [pid 488] +++ exited with 0 +++ [pid 486] +++ exited with 0 +++ [pid 490] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=486, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 490] <... bpf resumed>) = 5 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=488, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 490] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 490] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 490] <... bpf resumed>) = 6 [pid 293] <... restart_syscall resumed>) = 0 [pid 490] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", [pid 293] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] getdents64(3, [pid 293] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... openat resumed>) = 3 [pid 295] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] newfstatat(3, "", [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] newfstatat(AT_FDCWD, "./37/binderfs", [pid 293] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] unlink("./37/binderfs" [pid 293] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... unlink resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] getdents64(3, [pid 293] newfstatat(AT_FDCWD, "./37/binderfs", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] close(3 [pid 293] unlink("./37/binderfs" [pid 295] <... close resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] rmdir("./37" [pid 293] getdents64(3, [pid 295] <... rmdir resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] mkdir("./38", 0777 [pid 293] close(3 [pid 295] <... mkdir resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] rmdir("./37"./strace-static-x86_64: Process 492 attached [pid 492] set_robust_list(0x555555cf9760, 24) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 492 [pid 293] mkdir("./38", 0777 [pid 492] chdir("./38") = 0 [pid 492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 492] setpgid(0, 0 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 492] <... setpgid resumed>) = 0 [pid 492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 493 [pid 492] write(3, "1000", 4) = 4 [pid 492] close(3) = 0 [pid 492] symlink("/dev/binderfs", "./binderfs") = 0 [pid 492] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 493 attached ) = 3 [pid 492] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 493] set_robust_list(0x555555cf9760, 24) = 0 [pid 493] chdir("./38") = 0 [pid 493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 493] setpgid(0, 0) = 0 [pid 493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 493] write(3, "1000", 4) = 4 [pid 493] close(3) = 0 [pid 493] symlink("/dev/binderfs", "./binderfs") = 0 [pid 493] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 493] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 489] <... bpf resumed>) = 7 [pid 493] <... bpf resumed>) = 4 [pid 492] <... bpf resumed>) = 4 [pid 491] <... bpf resumed>) = 4 [pid 490] <... bpf resumed>) = 7 [pid 489] exit_group(0 [pid 493] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 492] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 491] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 490] exit_group(0 [pid 489] <... exit_group resumed>) = ? [pid 493] <... bpf resumed>) = 5 [pid 492] <... bpf resumed>) = 5 [pid 491] <... bpf resumed>) = 5 [pid 490] <... exit_group resumed>) = ? [pid 492] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 491] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 493] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 492] <... bpf resumed>) = 0 [pid 491] <... bpf resumed>) = 0 [pid 492] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 493] <... bpf resumed>) = 0 [pid 491] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 492] <... bpf resumed>) = 6 [pid 491] <... bpf resumed>) = 6 [pid 493] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 492] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 491] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 493] <... bpf resumed>) = 6 [pid 493] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 490] +++ exited with 0 +++ [pid 489] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=489, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 296] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 296] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./36/binderfs", [pid 294] umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./36/binderfs" [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... unlink resumed>) = 0 [pid 294] newfstatat(AT_FDCWD, "./35/binderfs", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] unlink("./35/binderfs" [pid 296] close(3) = 0 [pid 294] <... unlink resumed>) = 0 [pid 296] rmdir("./36" [pid 294] getdents64(3, [pid 296] <... rmdir resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] mkdir("./37", 0777 [pid 294] close(3 [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... close resumed>) = 0 [pid 294] rmdir("./35" [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 494 ./strace-static-x86_64: Process 494 attached [pid 494] set_robust_list(0x555555cf9760, 24) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./36", 0777 [pid 494] chdir("./37") = 0 [pid 494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 494] setpgid(0, 0 [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 494] <... setpgid resumed>) = 0 [pid 494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 495 [pid 494] write(3, "1000", 4) = 4 [pid 494] close(3) = 0 [pid 494] symlink("/dev/binderfs", "./binderfs") = 0 [pid 494] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 494] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 495 attached [pid 495] set_robust_list(0x555555cf9760, 24) = 0 [pid 495] chdir("./36") = 0 [pid 495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 495] setpgid(0, 0) = 0 [pid 495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 495] write(3, "1000", 4) = 4 [pid 495] close(3) = 0 [pid 495] symlink("/dev/binderfs", "./binderfs") = 0 [pid 495] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 495] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 491] <... bpf resumed>) = 7 [pid 495] <... bpf resumed>) = 4 [pid 494] <... bpf resumed>) = 4 [pid 493] <... bpf resumed>) = 7 [pid 492] <... bpf resumed>) = 7 [pid 491] exit_group(0 [pid 495] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 494] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 493] exit_group(0 [pid 491] <... exit_group resumed>) = ? [pid 495] <... bpf resumed>) = 5 [pid 494] <... bpf resumed>) = 5 [pid 493] <... exit_group resumed>) = ? [pid 492] exit_group(0 [pid 491] +++ exited with 0 +++ [pid 495] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 494] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 492] <... exit_group resumed>) = ? [pid 494] <... bpf resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=491, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 495] <... bpf resumed>) = 0 [pid 494] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 495] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 494] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 495] <... bpf resumed>) = 6 [pid 495] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./37/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./37") = 0 [pid 292] mkdir("./38", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 496 ./strace-static-x86_64: Process 496 attached [pid 496] set_robust_list(0x555555cf9760, 24) = 0 [pid 496] chdir("./38") = 0 [pid 496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 493] +++ exited with 0 +++ [pid 492] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=492, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 496] <... prctl resumed>) = 0 [pid 293] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 496] setpgid(0, 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 496] <... setpgid resumed>) = 0 [pid 293] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 295] <... restart_syscall resumed>) = 0 [pid 293] <... openat resumed>) = 3 [pid 295] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(3, "", [pid 295] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 496] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 496] write(3, "1000", 4 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 496] <... write resumed>) = 4 [pid 295] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 496] close(3 [pid 293] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./38/binderfs", [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 496] <... close resumed>) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 496] symlink("/dev/binderfs", "./binderfs" [pid 295] unlink("./38/binderfs" [pid 293] newfstatat(AT_FDCWD, "./38/binderfs", [pid 496] <... symlink resumed>) = 0 [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 496] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] unlink("./38/binderfs" [pid 295] close(3) = 0 [pid 295] rmdir("./38") = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] mkdir("./39", 0777) = 0 [pid 293] getdents64(3, [pid 496] <... bpf resumed>) = 3 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 496] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3./strace-static-x86_64: Process 497 attached ) = 0 [pid 497] set_robust_list(0x555555cf9760, 24 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 497 [pid 293] rmdir("./38" [pid 497] <... set_robust_list resumed>) = 0 [pid 497] chdir("./39" [pid 293] <... rmdir resumed>) = 0 [pid 497] <... chdir resumed>) = 0 [pid 293] mkdir("./39", 0777 [pid 497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 497] setpgid(0, 0) = 0 [pid 497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 497] write(3, "1000", 4) = 4 [pid 497] close(3) = 0 [pid 497] symlink("/dev/binderfs", "./binderfs") = 0 [pid 497] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 498 [pid 497] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 498 attached [pid 498] set_robust_list(0x555555cf9760, 24) = 0 [pid 498] chdir("./39") = 0 [pid 498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 498] setpgid(0, 0) = 0 [pid 498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 498] write(3, "1000", 4) = 4 [pid 498] close(3) = 0 [pid 498] symlink("/dev/binderfs", "./binderfs") = 0 [pid 498] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 498] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 495] <... bpf resumed>) = 7 [pid 494] <... bpf resumed>) = 7 [pid 498] <... bpf resumed>) = 4 [pid 497] <... bpf resumed>) = 4 [pid 496] <... bpf resumed>) = 4 [pid 495] exit_group(0 [pid 498] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 497] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 496] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 495] <... exit_group resumed>) = ? [pid 494] exit_group(0 [pid 498] <... bpf resumed>) = 5 [pid 497] <... bpf resumed>) = 5 [pid 496] <... bpf resumed>) = 5 [pid 495] +++ exited with 0 +++ [pid 494] <... exit_group resumed>) = ? [pid 498] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 497] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 498] <... bpf resumed>) = 0 [pid 497] <... bpf resumed>) = 0 [pid 498] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 497] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 498] <... bpf resumed>) = 6 [pid 497] <... bpf resumed>) = 6 [pid 496] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 494] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 498] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 497] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW [pid 496] <... bpf resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=494, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 496] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... restart_syscall resumed>) = 0 [pid 294] umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./36/binderfs", [pid 296] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 496] <... bpf resumed>) = 6 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] unlink("./36/binderfs" [pid 496] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./37/binderfs") = 0 [pid 296] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] getdents64(3, [pid 296] close(3) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] rmdir("./37" [pid 294] close(3 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./38", 0777) = 0 [pid 294] <... close resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] rmdir("./36"./strace-static-x86_64: Process 499 attached [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 499 [pid 294] <... rmdir resumed>) = 0 [pid 499] set_robust_list(0x555555cf9760, 24) = 0 [pid 294] mkdir("./37", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 499] chdir("./38"./strace-static-x86_64: Process 500 attached [pid 500] set_robust_list(0x555555cf9760, 24) = 0 [pid 500] chdir("./37") = 0 [pid 500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 500 [pid 497] <... bpf resumed>) = 7 [pid 499] <... chdir resumed>) = 0 [pid 498] <... bpf resumed>) = 7 [pid 497] exit_group(0 [pid 496] <... bpf resumed>) = 7 [pid 498] exit_group(0 [pid 497] <... exit_group resumed>) = ? [pid 499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 498] <... exit_group resumed>) = ? [pid 497] +++ exited with 0 +++ [pid 496] exit_group(0 [pid 500] setpgid(0, 0) = 0 [pid 500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 500] write(3, "1000", 4) = 4 [pid 500] close(3 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=497, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 496] <... exit_group resumed>) = ? [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 500] <... close resumed>) = 0 [pid 500] symlink("/dev/binderfs", "./binderfs") = 0 [pid 500] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... restart_syscall resumed>) = 0 [pid 295] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 500] <... bpf resumed>) = 3 [pid 499] <... prctl resumed>) = 0 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 500] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./39/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 499] setpgid(0, 0 [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./39") = 0 [pid 295] mkdir("./40", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 501 ./strace-static-x86_64: Process 501 attached [pid 501] set_robust_list(0x555555cf9760, 24) = 0 [pid 499] <... setpgid resumed>) = 0 [pid 501] chdir("./40" [pid 499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 501] <... chdir resumed>) = 0 [pid 501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 501] setpgid(0, 0 [pid 499] <... openat resumed>) = 3 [pid 499] write(3, "1000", 4 [pid 501] <... setpgid resumed>) = 0 [pid 501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 499] <... write resumed>) = 4 [pid 501] write(3, "1000", 4) = 4 [pid 501] close(3) = 0 [pid 501] symlink("/dev/binderfs", "./binderfs" [pid 499] close(3) = 0 [pid 501] <... symlink resumed>) = 0 [pid 499] symlink("/dev/binderfs", "./binderfs" [pid 501] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 499] <... symlink resumed>) = 0 [pid 499] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 501] <... bpf resumed>) = 3 [pid 499] <... bpf resumed>) = 3 [pid 501] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 499] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 498] +++ exited with 0 +++ [pid 496] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=498, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=496, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 293] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] newfstatat(AT_FDCWD, "./39/binderfs", [pid 292] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] unlink("./39/binderfs" [pid 292] newfstatat(AT_FDCWD, "./38/binderfs", [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] unlink("./38/binderfs" [pid 293] close(3 [pid 292] <... unlink resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] getdents64(3, [pid 293] rmdir("./39" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] close(3 [pid 293] mkdir("./40", 0777 [pid 292] <... close resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] rmdir("./38" [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./39", 0777./strace-static-x86_64: Process 502 attached [pid 502] set_robust_list(0x555555cf9760, 24) = 0 [pid 502] chdir("./40" [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 502 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 502] <... chdir resumed>) = 0 [pid 502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 503 [pid 502] <... prctl resumed>) = 0 [pid 502] setpgid(0, 0) = 0 [pid 502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 503 attached ) = 3 [pid 502] write(3, "1000", 4) = 4 [pid 503] set_robust_list(0x555555cf9760, 24) = 0 [pid 502] close(3 [pid 503] chdir("./39" [pid 502] <... close resumed>) = 0 [pid 502] symlink("/dev/binderfs", "./binderfs" [pid 503] <... chdir resumed>) = 0 [pid 502] <... symlink resumed>) = 0 [pid 503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 502] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 503] <... prctl resumed>) = 0 [pid 503] setpgid(0, 0) = 0 [pid 502] <... bpf resumed>) = 3 [pid 503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 502] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 503] <... openat resumed>) = 3 [pid 503] write(3, "1000", 4) = 4 [pid 503] close(3) = 0 [pid 503] symlink("/dev/binderfs", "./binderfs") = 0 [pid 503] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 503] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 501] <... bpf resumed>) = 4 [pid 500] <... bpf resumed>) = 4 [pid 502] <... bpf resumed>) = 4 [pid 501] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 500] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 499] <... bpf resumed>) = 4 [pid 501] <... bpf resumed>) = 5 [pid 500] <... bpf resumed>) = 5 [pid 499] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 503] <... bpf resumed>) = 4 [pid 502] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 501] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 500] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 501] <... bpf resumed>) = 0 [pid 500] <... bpf resumed>) = 0 [pid 499] <... bpf resumed>) = 5 [pid 501] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 500] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 499] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 503] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 502] <... bpf resumed>) = 5 [pid 501] <... bpf resumed>) = 6 [pid 500] <... bpf resumed>) = 6 [pid 499] <... bpf resumed>) = 0 [pid 503] <... bpf resumed>) = 5 [pid 502] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 501] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 500] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [ 25.251368][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 25.263000][ T288] BUG: scheduling while atomic: strace-static-x/288/0x00000002 [ 25.270383][ T288] Modules linked in: [ 25.274089][ T288] Preemption disabled at: [ 25.274096][ T288] [] is_module_text_address+0x1a/0x140 [ 25.285110][ T288] CPU: 0 PID: 288 Comm: strace-static-x Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 25.296565][ T288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 25.306460][ T288] Call Trace: [ 25.309583][ T288] [ 25.312362][ T288] dump_stack_lvl+0x151/0x1b7 [ 25.316875][ T288] ? is_module_text_address+0x1a/0x140 [ 25.322166][ T288] ? is_module_text_address+0x1a/0x140 [ 25.327462][ T288] ? io_uring_drop_tctx_refs+0x190/0x190 [ 25.332975][ T288] ? call_rcu+0xcfd/0x12a0 [ 25.337185][ T288] ? is_module_text_address+0x1a/0x140 [ 25.342478][ T288] dump_stack+0x15/0x17 [ 25.346471][ T288] __schedule_bug+0x195/0x260 [ 25.350983][ T288] ? rcu_gp_kthread_wake+0x90/0x90 [ 25.355931][ T288] ? ttwu_queue_wakelist+0x510/0x510 [ 25.361056][ T288] ? kmem_cache_free+0x2c3/0x2e0 [ 25.365851][ T288] __schedule+0xd19/0x1590 [ 25.370078][ T288] ? blkcg_maybe_throttle_current+0x17d/0xa00 [ 25.375984][ T288] ? __sched_text_start+0x8/0x8 [ 25.380666][ T288] ? __blkcg_punt_bio_submit+0x180/0x180 [ 25.386135][ T288] ? unlock_page_memcg+0x160/0x160 [ 25.391189][ T288] schedule+0x11f/0x1e0 [ 25.395179][ T288] exit_to_user_mode_loop+0x4d/0xe0 [ 25.400214][ T288] exit_to_user_mode_prepare+0x5a/0xa0 [ 25.405510][ T288] syscall_exit_to_user_mode+0x26/0x160 [ 25.410894][ T288] do_syscall_64+0x49/0xb0 [ 25.415145][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 25.420871][ T288] RIP: 0033:0x4e65f7 [ 25.424605][ T288] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 25.444046][ T288] RSP: 002b:00007fff1897b678 EFLAGS: 00000286 ORIG_RAX: 0000000000000003 [pid 499] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 503] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 502] <... bpf resumed>) = 0 [pid 501] <... bpf resumed>) = 7 [pid 500] <... bpf resumed>) = 7 [pid 499] <... bpf resumed>) = 6 [pid 503] <... bpf resumed>) = 0 [pid 502] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 499] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 503] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 502] <... bpf resumed>) = 6 [pid 501] exit_group(0 [pid 500] exit_group(0 [pid 499] <... bpf resumed>) = 7 [pid 503] <... bpf resumed>) = 6 [pid 502] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 499] exit_group(0 [pid 503] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 502] <... bpf resumed>) = 7 [pid 499] <... exit_group resumed>) = ? [pid 503] <... bpf resumed>) = 7 [pid 502] exit_group(0 [pid 501] <... exit_group resumed>) = ? [pid 500] <... exit_group resumed>) = ? [pid 499] +++ exited with 0 +++ [pid 503] exit_group(0 [pid 502] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 503] <... exit_group resumed>) = ? [pid 502] +++ exited with 0 +++ [pid 501] +++ exited with 0 +++ [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=501, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 296] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 296] unlink("./38/binderfs") = 0 [pid 296] getdents64(3, [pid 295] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] close(3 [pid 295] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... close resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 296] rmdir("./38" [pid 295] newfstatat(3, "", [pid 293] <... openat resumed>) = 3 [pid 296] <... rmdir resumed>) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] mkdir("./39", 0777 [pid 295] getdents64(3, [pid 293] newfstatat(3, "", [pid 296] <... mkdir resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] getdents64(3, [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 504 [pid 295] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] unlink("./40/binderfs") = 0 [pid 293] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] close(3 [pid 293] newfstatat(AT_FDCWD, "./40/binderfs", [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./40"./strace-static-x86_64: Process 504 attached ) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] mkdir("./41", 0777 [pid 504] set_robust_list(0x555555cf9760, 24 [pid 295] <... mkdir resumed>) = 0 [pid 293] unlink("./40/binderfs" [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 505 [pid 293] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 505 attached [pid 505] set_robust_list(0x555555cf9760, 24) = 0 [pid 505] chdir("./41") = 0 [pid 505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 505] setpgid(0, 0) = 0 [pid 505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] getdents64(3, [pid 505] write(3, "1000", 4) = 4 [pid 505] close(3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 504] <... set_robust_list resumed>) = 0 [pid 505] <... close resumed>) = 0 [pid 505] symlink("/dev/binderfs", "./binderfs" [pid 293] close(3 [pid 505] <... symlink resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 505] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] rmdir("./40") = 0 [pid 504] chdir("./39" [pid 293] mkdir("./41", 0777 [pid 505] <... bpf resumed>) = 3 [pid 505] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] <... mkdir resumed>) = 0 [pid 504] <... chdir resumed>) = 0 [pid 504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 504] <... prctl resumed>) = 0 [pid 504] setpgid(0, 0) = 0 [pid 504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 504] write(3, "1000", 4) = 4 [pid 504] close(3) = 0 [pid 504] symlink("/dev/binderfs", "./binderfs" [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 506 [pid 504] <... symlink resumed>) = 0 [pid 504] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 506 attached [pid 506] set_robust_list(0x555555cf9760, 24) = 0 [pid 506] chdir("./41") = 0 [pid 506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 506] setpgid(0, 0) = 0 [pid 506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 506] write(3, "1000", 4) = 4 [pid 506] close(3) = 0 [pid 506] symlink("/dev/binderfs", "./binderfs") = 0 [pid 506] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 506] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 504] <... bpf resumed>) = 3 [ 25.452292][ T288] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 00000000004e65f7 [ 25.460102][ T288] RDX: 00007fff1897b680 RSI: 0000000000008910 RDI: 0000000000000003 [ 25.467913][ T288] RBP: 0000000000000003 R08: 00000000ffffffff R09: 000000000000000d [ 25.475723][ T288] R10: 00000000005549d3 R11: 0000000000000286 R12: 00007fff1897b6e0 [ 25.483535][ T288] R13: 00007fff1897b680 R14: 0000000000427210 R15: 0000000000617180 [ 25.491352][ T288] [pid 504] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 505] <... bpf resumed>) = 4 [pid 500] +++ exited with 0 +++ [pid 505] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=500, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 505] <... bpf resumed>) = 5 [pid 505] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 294] umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW [pid 505] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 505] <... bpf resumed>) = 6 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 505] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./37/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./37") = 0 [pid 294] mkdir("./38", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 507 attached , child_tidptr=0x555555cf9750) = 507 [pid 507] set_robust_list(0x555555cf9760, 24) = 0 [pid 507] chdir("./38") = 0 [pid 507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 507] setpgid(0, 0) = 0 [pid 507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 507] write(3, "1000", 4) = 4 [pid 507] close(3) = 0 [pid 507] symlink("/dev/binderfs", "./binderfs") = 0 [pid 507] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 507] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 506] <... bpf resumed>) = 4 [pid 504] <... bpf resumed>) = 4 [pid 503] +++ exited with 0 +++ [pid 506] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 505] <... bpf resumed>) = 7 [pid 504] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 506] <... bpf resumed>) = 5 [pid 505] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=503, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 505] <... exit_group resumed>) = ? [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 505] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 506] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] <... restart_syscall resumed>) = 0 [pid 506] <... bpf resumed>) = 0 [pid 504] <... bpf resumed>) = 5 [pid 506] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 504] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 507] <... bpf resumed>) = 4 [pid 506] <... bpf resumed>) = 6 [pid 292] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 506] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 504] <... bpf resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 504] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 504] <... bpf resumed>) = 6 [pid 292] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 504] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 295] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 295] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(AT_FDCWD, "./41/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./39/binderfs", [pid 295] unlink("./41/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] unlink("./39/binderfs" [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 292] <... unlink resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 292] getdents64(3, [pid 295] rmdir("./41" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 292] close(3 [pid 295] mkdir("./42", 0777 [pid 292] <... close resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 292] rmdir("./39" [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./40", 0777./strace-static-x86_64: Process 508 attached [pid 508] set_robust_list(0x555555cf9760, 24) = 0 [pid 508] chdir("./42" [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 508 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 508] <... chdir resumed>) = 0 [pid 508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 508] setpgid(0, 0) = 0 [pid 508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 507] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 509 [pid 507] <... bpf resumed>) = 5 [pid 508] <... openat resumed>) = 3 [pid 507] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4./strace-static-x86_64: Process 509 attached [pid 509] set_robust_list(0x555555cf9760, 24) = 0 [pid 508] write(3, "1000", 4 [pid 507] <... bpf resumed>) = 0 [pid 507] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 509] chdir("./40" [pid 508] <... write resumed>) = 4 [pid 508] close(3 [pid 509] <... chdir resumed>) = 0 [pid 508] <... close resumed>) = 0 [pid 509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 508] symlink("/dev/binderfs", "./binderfs" [pid 507] <... bpf resumed>) = 6 [pid 509] setpgid(0, 0 [pid 508] <... symlink resumed>) = 0 [pid 507] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 509] <... setpgid resumed>) = 0 [pid 508] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 509] write(3, "1000", 4) = 4 [pid 509] close(3) = 0 [pid 509] symlink("/dev/binderfs", "./binderfs") = 0 [pid 509] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 508] <... bpf resumed>) = 3 [pid 508] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 509] <... bpf resumed>) = 3 [pid 509] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 506] <... bpf resumed>) = 7 [pid 509] <... bpf resumed>) = 4 [pid 508] <... bpf resumed>) = 4 [pid 507] <... bpf resumed>) = 7 [pid 506] exit_group(0 [pid 504] <... bpf resumed>) = 7 [pid 506] <... exit_group resumed>) = ? [pid 509] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 508] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 507] exit_group(0 [pid 506] +++ exited with 0 +++ [pid 504] exit_group(0 [pid 509] <... bpf resumed>) = 5 [pid 507] <... exit_group resumed>) = ? [pid 504] <... exit_group resumed>) = ? [pid 508] <... bpf resumed>) = 5 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=506, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 509] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 507] +++ exited with 0 +++ [pid 509] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 509] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 508] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 508] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 508] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./41/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./41") = 0 [pid 293] mkdir("./42", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 510 ./strace-static-x86_64: Process 510 attached [pid 510] set_robust_list(0x555555cf9760, 24) = 0 [pid 510] chdir("./42") = 0 [pid 510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 510] setpgid(0, 0) = 0 [pid 510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 510] write(3, "1000", 4) = 4 [pid 510] close(3) = 0 [pid 510] symlink("/dev/binderfs", "./binderfs") = 0 [ 25.589088][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 25.601063][ T507] BUG: scheduling while atomic: syz-executor156/507/0x00000002 [ 25.608531][ T507] Modules linked in: [ 25.612307][ T507] Preemption disabled at: [ 25.612316][ T507] [] up_write+0x27/0x1f0 [ 25.622712][ T507] CPU: 0 PID: 507 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 25.634158][ T507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 25.644050][ T507] Call Trace: [ 25.647175][ T507] [ 25.649952][ T507] dump_stack_lvl+0x151/0x1b7 [ 25.654466][ T507] ? up_write+0x27/0x1f0 [ 25.658542][ T507] ? up_write+0x27/0x1f0 [ 25.662624][ T507] ? io_uring_drop_tctx_refs+0x190/0x190 [ 25.668092][ T507] ? _raw_spin_unlock_irqrestore+0x5c/0x80 [ 25.673735][ T507] ? __wake_up_sync_key+0x1b1/0x3d0 [ 25.678768][ T507] ? up_write+0x27/0x1f0 [ 25.682849][ T507] dump_stack+0x15/0x17 [ 25.687013][ T507] __schedule_bug+0x195/0x260 [ 25.691526][ T507] ? ttwu_queue_wakelist+0x510/0x510 [ 25.696645][ T507] ? __send_signal+0x96f/0xcb0 [ 25.701249][ T507] __schedule+0xd19/0x1590 [ 25.705497][ T507] ? __kasan_check_write+0x14/0x20 [ 25.710445][ T507] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 25.715740][ T507] ? __sched_text_start+0x8/0x8 [ 25.720427][ T507] ? _raw_write_lock_irqsave+0x1e0/0x1e0 [ 25.725896][ T507] do_task_dead+0x99/0xa0 [ 25.730064][ T507] do_exit+0x2089/0x2ca0 [ 25.734142][ T507] ? put_task_struct+0x80/0x80 [ 25.738740][ T507] ? ptrace_notify+0x24c/0x350 [ 25.743339][ T507] ? do_notify_parent+0xa30/0xa30 [ 25.748205][ T507] do_group_exit+0x141/0x310 [ 25.752632][ T507] __x64_sys_exit_group+0x3f/0x40 [ 25.757490][ T507] do_syscall_64+0x3d/0xb0 [ 25.761741][ T507] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 25.767732][ T507] RIP: 0033:0x7f5bb48eda79 [ 25.771985][ T507] Code: Unable to access opcode bytes at RIP 0x7f5bb48eda4f. [ 25.779187][ T507] RSP: 002b:00007ffc13478e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [pid 510] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=507, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 509] <... bpf resumed>) = 7 [pid 508] <... bpf resumed>) = 7 [pid 509] exit_group(0 [ 25.787432][ T507] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5bb48eda79 [ 25.795245][ T507] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 25.803054][ T507] RBP: 00007f5bb4969370 R08: ffffffffffffffb8 R09: 00007ffc13478f1c [ 25.810869][ T507] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5bb4969370 [ 25.818676][ T507] R13: 0000000000000000 R14: 00007f5bb4969de0 R15: 00007f5bb48be4b0 [ 25.826491][ T507] [pid 508] exit_group(0 [pid 509] <... exit_group resumed>) = ? [pid 508] <... exit_group resumed>) = ? [pid 294] umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW [pid 508] +++ exited with 0 +++ [pid 504] +++ exited with 0 +++ [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=504, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", [pid 296] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] getdents64(3, [pid 296] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... openat resumed>) = 3 [pid 294] umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(3, "", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(AT_FDCWD, "./38/binderfs", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] unlink("./38/binderfs" [pid 296] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... unlink resumed>) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] getdents64(3, [pid 296] newfstatat(AT_FDCWD, "./39/binderfs", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] close(3 [pid 296] unlink("./39/binderfs" [pid 294] <... close resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] rmdir("./38" [pid 296] getdents64(3, [pid 294] <... rmdir resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] mkdir("./39", 0777 [pid 296] close(3 [pid 294] <... mkdir resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] rmdir("./39") = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 512 [pid 296] mkdir("./40", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 513 ./strace-static-x86_64: Process 513 attached [pid 513] set_robust_list(0x555555cf9760, 24) = 0 [pid 513] chdir("./40") = 0 [pid 513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 513] setpgid(0, 0) = 0 [pid 513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 512 attached [pid 513] write(3, "1000", 4) = 4 [pid 513] close(3) = 0 [pid 512] set_robust_list(0x555555cf9760, 24 [pid 513] symlink("/dev/binderfs", "./binderfs" [pid 512] <... set_robust_list resumed>) = 0 [pid 512] chdir("./39" [pid 513] <... symlink resumed>) = 0 [pid 512] <... chdir resumed>) = 0 [pid 512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 512] setpgid(0, 0) = 0 [pid 512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 513] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 512] <... openat resumed>) = 3 [pid 512] write(3, "1000", 4) = 4 [pid 512] close(3) = 0 [pid 512] symlink("/dev/binderfs", "./binderfs") = 0 [ 25.830609][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 25.842261][ T504] BUG: scheduling while atomic: syz-executor156/504/0x00000002 [ 25.850093][ T504] Modules linked in: [ 25.854158][ T504] Preemption disabled at: [ 25.854167][ T504] [] is_module_text_address+0x1a/0x140 [ 25.865704][ T504] CPU: 0 PID: 504 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 25.877158][ T504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 25.887041][ T504] Call Trace: [ 25.890166][ T504] [ 25.892945][ T504] dump_stack_lvl+0x151/0x1b7 [ 25.897456][ T504] ? is_module_text_address+0x1a/0x140 [ 25.902751][ T504] ? is_module_text_address+0x1a/0x140 [ 25.908046][ T504] ? io_uring_drop_tctx_refs+0x190/0x190 [ 25.913522][ T504] ? _raw_spin_unlock_irqrestore+0x5c/0x80 [ 25.920757][ T504] ? __wake_up_sync_key+0x1b1/0x3d0 [ 25.926262][ T504] ? is_module_text_address+0x1a/0x140 [ 25.931628][ T504] dump_stack+0x15/0x17 [ 25.935621][ T504] __schedule_bug+0x195/0x260 [ 25.940135][ T504] ? ttwu_queue_wakelist+0x510/0x510 [ 25.945253][ T504] ? __send_signal+0x96f/0xcb0 [ 25.949859][ T504] __schedule+0xd19/0x1590 [ 25.954106][ T504] ? __kasan_check_write+0x14/0x20 [ 25.959051][ T504] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 25.964348][ T504] ? __sched_text_start+0x8/0x8 [ 25.969034][ T504] ? _raw_write_lock_irqsave+0x1e0/0x1e0 [ 25.974506][ T504] do_task_dead+0x99/0xa0 [ 25.978668][ T504] do_exit+0x2089/0x2ca0 [ 25.982748][ T504] ? put_task_struct+0x80/0x80 [ 25.987349][ T504] ? ptrace_notify+0x24c/0x350 [ 25.991948][ T504] ? do_notify_parent+0xa30/0xa30 [ 25.996811][ T504] do_group_exit+0x141/0x310 [ 26.001234][ T504] __x64_sys_exit_group+0x3f/0x40 [ 26.006094][ T504] do_syscall_64+0x3d/0xb0 [ 26.010349][ T504] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 26.016076][ T504] RIP: 0033:0x7f5bb48eda79 [ 26.020328][ T504] Code: Unable to access opcode bytes at RIP 0x7f5bb48eda4f. [ 26.027531][ T504] RSP: 002b:00007ffc13478e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [pid 512] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 512] <... bpf resumed>) = 3 [pid 510] <... bpf resumed>) = 3 [pid 512] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 510] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 512] <... bpf resumed>) = 4 [pid 510] <... bpf resumed>) = 4 [pid 512] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 510] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 295] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 512] <... bpf resumed>) = 5 [pid 510] <... bpf resumed>) = 5 [pid 512] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 510] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 512] <... bpf resumed>) = 0 [pid 510] <... bpf resumed>) = 0 [pid 295] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 512] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 510] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... openat resumed>) = 3 [pid 512] <... bpf resumed>) = 6 [pid 510] <... bpf resumed>) = 6 [pid 295] newfstatat(3, "", [pid 512] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 510] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 513] <... bpf resumed>) = 3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 513] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 295] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./42/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./42") = 0 [pid 295] mkdir("./43", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 515 ./strace-static-x86_64: Process 515 attached [pid 515] set_robust_list(0x555555cf9760, 24) = 0 [pid 515] chdir("./43") = 0 [pid 515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 515] setpgid(0, 0) = 0 [pid 515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 515] write(3, "1000", 4) = 4 [pid 515] close(3) = 0 [pid 515] symlink("/dev/binderfs", "./binderfs") = 0 [pid 515] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 515] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 512] <... bpf resumed>) = 7 [pid 509] +++ exited with 0 +++ [pid 515] <... bpf resumed>) = 4 [pid 513] <... bpf resumed>) = 4 [pid 510] <... bpf resumed>) = 7 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=509, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 513] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 512] exit_group(0 [pid 510] exit_group(0 [pid 515] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 513] <... bpf resumed>) = 5 [pid 512] <... exit_group resumed>) = ? [pid 510] <... exit_group resumed>) = ? [pid 513] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./40/binderfs" [pid 513] <... bpf resumed>) = 0 [pid 292] <... unlink resumed>) = 0 [pid 513] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] getdents64(3, [pid 515] <... bpf resumed>) = 5 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./40" [pid 513] <... bpf resumed>) = 6 [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./41", 0777 [pid 515] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 513] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 516 attached [pid 515] <... bpf resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 516 [pid 515] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 516] set_robust_list(0x555555cf9760, 24 [pid 515] <... bpf resumed>) = 6 [pid 516] <... set_robust_list resumed>) = 0 [pid 515] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 516] chdir("./41") = 0 [pid 516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 516] setpgid(0, 0) = 0 [pid 516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 516] write(3, "1000", 4) = 4 [pid 516] close(3) = 0 [pid 516] symlink("/dev/binderfs", "./binderfs") = 0 [pid 516] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 516] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 512] +++ exited with 0 +++ [pid 510] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=510, si_uid=0, si_status=0, si_utime=0, si_stime=20} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=512, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./39/binderfs", [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./39/binderfs" [pid 293] newfstatat(AT_FDCWD, "./42/binderfs", [pid 294] <... unlink resumed>) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] getdents64(3, [pid 293] unlink("./42/binderfs" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 293] <... unlink resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 293] getdents64(3, [pid 294] rmdir("./39" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 293] close(3 [pid 294] mkdir("./40", 0777 [pid 293] <... close resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 293] rmdir("./42" [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./43", 0777./strace-static-x86_64: Process 517 attached [pid 517] set_robust_list(0x555555cf9760, 24) = 0 [pid 517] chdir("./40" [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 517 [pid 293] <... mkdir resumed>) = 0 [pid 517] <... chdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 517] setpgid(0, 0) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 518 [pid 517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 517] write(3, "1000", 4) = 4 [pid 517] close(3) = 0 [ 26.035777][ T504] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5bb48eda79 [ 26.043590][ T504] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 26.051399][ T504] RBP: 00007f5bb4969370 R08: ffffffffffffffb8 R09: 00007ffc13478f1c [ 26.059218][ T504] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5bb4969370 [ 26.067025][ T504] R13: 0000000000000000 R14: 00007f5bb4969de0 R15: 00007f5bb48be4b0 [ 26.074843][ T504] [pid 517] symlink("/dev/binderfs", "./binderfs") = 0 [pid 517] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 517] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 518 attached [pid 518] set_robust_list(0x555555cf9760, 24) = 0 [pid 518] chdir("./43") = 0 [pid 518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 518] setpgid(0, 0) = 0 [pid 518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 518] write(3, "1000", 4) = 4 [pid 518] close(3) = 0 [pid 518] symlink("/dev/binderfs", "./binderfs") = 0 [pid 518] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 518] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 513] <... bpf resumed>) = 7 [pid 515] <... bpf resumed>) = 7 [pid 513] exit_group(0) = ? [pid 515] exit_group(0) = ? [pid 517] <... bpf resumed>) = 4 [pid 516] <... bpf resumed>) = 4 [pid 517] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 516] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 513] +++ exited with 0 +++ [pid 517] <... bpf resumed>) = 5 [pid 516] <... bpf resumed>) = 5 [pid 515] +++ exited with 0 +++ [pid 518] <... bpf resumed>) = 4 [pid 517] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 516] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=513, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 517] <... bpf resumed>) = 0 [pid 516] <... bpf resumed>) = 0 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 517] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 516] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 518] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 517] <... bpf resumed>) = 6 [pid 516] <... bpf resumed>) = 6 [pid 296] <... restart_syscall resumed>) = 0 [pid 517] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 516] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 518] <... bpf resumed>) = 5 [pid 295] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 518] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 518] <... bpf resumed>) = 0 [pid 518] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 518] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] getdents64(3, [pid 296] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./40/binderfs", [pid 295] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] unlink("./40/binderfs" [pid 295] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] unlink("./43/binderfs" [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 296] rmdir("./40" [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] rmdir("./43" [pid 296] mkdir("./41", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./44", 0777 [pid 296] <... mkdir resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 520 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 519 ./strace-static-x86_64: Process 519 attached [pid 519] set_robust_list(0x555555cf9760, 24) = 0 [pid 519] chdir("./44") = 0 [pid 519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 519] setpgid(0, 0) = 0 [pid 519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 519] write(3, "1000", 4) = 4 [pid 519] close(3) = 0 [pid 519] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 520 attached ) = 0 [pid 519] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 520] set_robust_list(0x555555cf9760, 24) = 0 [pid 520] chdir("./41") = 0 [pid 520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 519] <... bpf resumed>) = 3 [pid 519] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 520] <... prctl resumed>) = 0 [pid 520] setpgid(0, 0) = 0 [pid 520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 520] write(3, "1000", 4) = 4 [pid 520] close(3) = 0 [pid 520] symlink("/dev/binderfs", "./binderfs") = 0 [pid 520] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 520] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 519] <... bpf resumed>) = 4 [pid 518] <... bpf resumed>) = 7 [pid 517] <... bpf resumed>) = 7 [pid 516] <... bpf resumed>) = 7 [pid 519] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 518] exit_group(0 [pid 517] exit_group(0 [pid 516] exit_group(0 [pid 519] <... bpf resumed>) = 5 [pid 518] <... exit_group resumed>) = ? [pid 517] <... exit_group resumed>) = ? [pid 516] <... exit_group resumed>) = ? [pid 519] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 518] +++ exited with 0 +++ [pid 519] <... bpf resumed>) = 0 [pid 519] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 519] <... bpf resumed>) = 6 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 519] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./43/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./43") = 0 [pid 293] mkdir("./44", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 521 ./strace-static-x86_64: Process 521 attached [pid 521] set_robust_list(0x555555cf9760, 24) = 0 [pid 521] chdir("./44") = 0 [pid 521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 521] setpgid(0, 0) = 0 [pid 521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 521] write(3, "1000", 4) = 4 [pid 521] close(3) = 0 [pid 521] symlink("/dev/binderfs", "./binderfs") = 0 [pid 521] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 521] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 520] <... bpf resumed>) = 4 [pid 516] +++ exited with 0 +++ [pid 520] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=516, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 520] <... bpf resumed>) = 5 [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 520] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] <... restart_syscall resumed>) = 0 [pid 520] <... bpf resumed>) = 0 [pid 520] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 520] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./41/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./41") = 0 [pid 292] mkdir("./42", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 522 attached , child_tidptr=0x555555cf9750) = 522 [pid 522] set_robust_list(0x555555cf9760, 24) = 0 [pid 522] chdir("./42") = 0 [pid 522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 522] setpgid(0, 0) = 0 [pid 522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 522] write(3, "1000", 4) = 4 [pid 522] close(3) = 0 [pid 522] symlink("/dev/binderfs", "./binderfs") = 0 [pid 522] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 522] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 521] <... bpf resumed>) = 4 [pid 519] <... bpf resumed>) = 7 [pid 520] <... bpf resumed>) = 7 [pid 517] +++ exited with 0 +++ [pid 521] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 519] exit_group(0 [pid 522] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 521] <... bpf resumed>) = 5 [pid 519] <... exit_group resumed>) = ? [pid 520] exit_group(0 [pid 522] <... bpf resumed>) = 5 [pid 521] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 520] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 522] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 521] <... bpf resumed>) = 0 [pid 521] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 522] <... bpf resumed>) = 0 [pid 521] <... bpf resumed>) = 6 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 521] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 522] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... restart_syscall resumed>) = 0 [pid 522] <... bpf resumed>) = 6 [pid 294] umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW [pid 522] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./40/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./40") = 0 [pid 294] mkdir("./41", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 523 attached , child_tidptr=0x555555cf9750) = 523 [pid 523] set_robust_list(0x555555cf9760, 24) = 0 [pid 523] chdir("./41") = 0 [pid 523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 523] setpgid(0, 0) = 0 [pid 523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 523] write(3, "1000", 4) = 4 [pid 523] close(3) = 0 [pid 523] symlink("/dev/binderfs", "./binderfs") = 0 [pid 523] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 523] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 519] +++ exited with 0 +++ [pid 520] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=520, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=519, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 295] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", [pid 296] <... restart_syscall resumed>) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] newfstatat(AT_FDCWD, "./44/binderfs", [pid 296] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] newfstatat(3, "", [pid 295] unlink("./44/binderfs" [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./41/binderfs", [pid 295] close(3 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... close resumed>) = 0 [pid 296] unlink("./41/binderfs" [pid 295] rmdir("./44" [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] <... rmdir resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] mkdir("./45", 0777 [pid 296] close(3 [pid 295] <... mkdir resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] rmdir("./41"./strace-static-x86_64: Process 524 attached [pid 524] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./42", 0777 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 524 [pid 524] chdir("./45") = 0 [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 524] setpgid(0, 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 525 [pid 524] <... setpgid resumed>) = 0 [pid 524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 524] write(3, "1000", 4) = 4 [pid 524] close(3) = 0 [pid 524] symlink("/dev/binderfs", "./binderfs") = 0 [pid 524] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 524] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 525 attached [pid 525] set_robust_list(0x555555cf9760, 24) = 0 [pid 525] chdir("./42") = 0 [pid 525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 525] setpgid(0, 0) = 0 [pid 525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 525] write(3, "1000", 4) = 4 [pid 525] close(3) = 0 [pid 525] symlink("/dev/binderfs", "./binderfs") = 0 [pid 525] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 525] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 521] <... bpf resumed>) = 7 [pid 524] <... bpf resumed>) = 4 [pid 523] <... bpf resumed>) = 4 [pid 522] <... bpf resumed>) = 7 [pid 521] exit_group(0 [pid 524] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 523] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 521] <... exit_group resumed>) = ? [pid 525] <... bpf resumed>) = 4 [pid 524] <... bpf resumed>) = 5 [pid 523] <... bpf resumed>) = 5 [pid 522] exit_group(0 [pid 523] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 522] <... exit_group resumed>) = ? [pid 525] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 523] <... bpf resumed>) = 0 [pid 524] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 524] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 525] <... bpf resumed>) = 5 [pid 524] <... bpf resumed>) = 6 [pid 523] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 525] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 524] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 523] <... bpf resumed>) = 6 [pid 525] <... bpf resumed>) = 0 [pid 523] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 525] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 525] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 522] +++ exited with 0 +++ [pid 521] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=521, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... openat resumed>) = 3 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... openat resumed>) = 3 [pid 293] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] newfstatat(3, "", [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] newfstatat(AT_FDCWD, "./44/binderfs", [pid 292] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./44/binderfs" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 292] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... close resumed>) = 0 [pid 292] newfstatat(AT_FDCWD, "./42/binderfs", [pid 293] rmdir("./44") = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] mkdir("./45", 0777 [pid 292] unlink("./42/binderfs" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 526 attached [pid 292] <... unlink resumed>) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 526 [pid 526] set_robust_list(0x555555cf9760, 24) = 0 [pid 526] chdir("./45" [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 526] <... chdir resumed>) = 0 [pid 292] close(3 [pid 526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 292] <... close resumed>) = 0 [pid 526] setpgid(0, 0 [pid 292] rmdir("./42" [pid 526] <... setpgid resumed>) = 0 [pid 526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 292] <... rmdir resumed>) = 0 [pid 526] write(3, "1000", 4 [pid 292] mkdir("./43", 0777 [pid 526] <... write resumed>) = 4 [pid 526] close(3) = 0 [pid 526] symlink("/dev/binderfs", "./binderfs") = 0 [pid 292] <... mkdir resumed>) = 0 [pid 526] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 526] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 527 attached [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 527 [pid 527] set_robust_list(0x555555cf9760, 24) = 0 [pid 527] chdir("./43") = 0 [pid 527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 527] setpgid(0, 0) = 0 [pid 527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 527] write(3, "1000", 4) = 4 [pid 527] close(3) = 0 [pid 527] symlink("/dev/binderfs", "./binderfs") = 0 [pid 527] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 527] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 524] <... bpf resumed>) = 7 [pid 527] <... bpf resumed>) = 4 [pid 526] <... bpf resumed>) = 4 [pid 525] <... bpf resumed>) = 7 [pid 524] exit_group(0 [pid 523] <... bpf resumed>) = 7 [pid 527] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 524] <... exit_group resumed>) = ? [pid 527] <... bpf resumed>) = 5 [pid 526] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 525] exit_group(0 [pid 524] +++ exited with 0 +++ [pid 523] exit_group(0 [pid 527] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 526] <... bpf resumed>) = 5 [pid 525] <... exit_group resumed>) = ? [pid 523] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=524, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 527] <... bpf resumed>) = 0 [pid 527] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 526] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 527] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 526] <... bpf resumed>) = 0 [pid 526] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./45/binderfs", [pid 526] <... bpf resumed>) = 6 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 526] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] unlink("./45/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./45") = 0 [pid 295] mkdir("./46", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 528 ./strace-static-x86_64: Process 528 attached [pid 528] set_robust_list(0x555555cf9760, 24) = 0 [pid 528] chdir("./46") = 0 [pid 528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 528] setpgid(0, 0) = 0 [pid 528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 528] write(3, "1000", 4) = 4 [pid 528] close(3) = 0 [pid 528] symlink("/dev/binderfs", "./binderfs") = 0 [pid 528] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 528] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 525] +++ exited with 0 +++ [pid 523] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=525, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 294] umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 296] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 294] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./42/binderfs", [pid 294] newfstatat(AT_FDCWD, "./41/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./42/binderfs" [pid 294] unlink("./41/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] getdents64(3, [pid 296] close(3 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... close resumed>) = 0 [pid 294] close(3 [pid 296] rmdir("./42" [pid 294] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 294] rmdir("./41" [pid 296] mkdir("./43", 0777 [pid 294] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] mkdir("./42", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 529 ./strace-static-x86_64: Process 529 attached [pid 529] set_robust_list(0x555555cf9760, 24) = 0 [pid 529] chdir("./43" [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 530 [pid 529] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 530 attached [pid 530] set_robust_list(0x555555cf9760, 24 [pid 529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 529] setpgid(0, 0) = 0 [pid 530] <... set_robust_list resumed>) = 0 [pid 529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 530] chdir("./42") = 0 [pid 529] <... openat resumed>) = 3 [pid 529] write(3, "1000", 4 [pid 530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 529] <... write resumed>) = 4 [pid 530] <... prctl resumed>) = 0 [pid 530] setpgid(0, 0) = 0 [pid 529] close(3 [pid 530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 529] <... close resumed>) = 0 [pid 529] symlink("/dev/binderfs", "./binderfs" [pid 530] <... openat resumed>) = 3 [pid 529] <... symlink resumed>) = 0 [pid 530] write(3, "1000", 4) = 4 [pid 530] close(3 [pid 529] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 530] <... close resumed>) = 0 [pid 530] symlink("/dev/binderfs", "./binderfs") = 0 [pid 530] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 528] <... bpf resumed>) = 4 [pid 527] <... bpf resumed>) = 7 [pid 526] <... bpf resumed>) = 7 [pid 529] <... bpf resumed>) = 3 [pid 528] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 527] exit_group(0 [pid 526] exit_group(0 [pid 529] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 528] <... bpf resumed>) = 5 [pid 527] <... exit_group resumed>) = ? [pid 526] <... exit_group resumed>) = ? [pid 528] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 530] <... bpf resumed>) = 3 [pid 526] +++ exited with 0 +++ [pid 528] <... bpf resumed>) = 0 [pid 528] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=526, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 530] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 528] <... bpf resumed>) = 6 [pid 528] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./45/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./45") = 0 [pid 293] mkdir("./46", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 531 attached , child_tidptr=0x555555cf9750) = 531 [pid 531] set_robust_list(0x555555cf9760, 24) = 0 [pid 531] chdir("./46") = 0 [pid 531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 531] setpgid(0, 0) = 0 [pid 531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 531] write(3, "1000", 4) = 4 [pid 531] close(3) = 0 [pid 531] symlink("/dev/binderfs", "./binderfs") = 0 [pid 531] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 531] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 530] <... bpf resumed>) = 4 [pid 529] <... bpf resumed>) = 4 [pid 528] <... bpf resumed>) = 7 [pid 527] +++ exited with 0 +++ [pid 530] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 529] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 528] exit_group(0 [pid 531] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 530] <... bpf resumed>) = 5 [pid 529] <... bpf resumed>) = 5 [pid 528] <... exit_group resumed>) = ? [pid 531] <... bpf resumed>) = 5 [pid 530] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 529] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 528] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=527, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 530] <... bpf resumed>) = 0 [pid 529] <... bpf resumed>) = 0 [pid 530] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 529] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=528, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 531] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 530] <... bpf resumed>) = 6 [pid 529] <... bpf resumed>) = 6 [pid 295] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 530] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 529] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... restart_syscall resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(3, "", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] getdents64(3, [pid 292] <... openat resumed>) = 3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] newfstatat(3, "", [pid 295] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] newfstatat(AT_FDCWD, "./46/binderfs", [pid 292] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./46/binderfs" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... unlink resumed>) = 0 [pid 292] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] getdents64(3, [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] newfstatat(AT_FDCWD, "./43/binderfs", [pid 295] close(3 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./46" [pid 292] unlink("./43/binderfs" [pid 295] <... rmdir resumed>) = 0 [pid 292] <... unlink resumed>) = 0 [pid 295] mkdir("./47", 0777 [pid 292] getdents64(3, [pid 295] <... mkdir resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] close(3./strace-static-x86_64: Process 532 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 532 [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./43" [pid 532] set_robust_list(0x555555cf9760, 24) = 0 [pid 532] chdir("./47" [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./44", 0777 [pid 532] <... chdir resumed>) = 0 [pid 532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 532] setpgid(0, 0) = 0 [pid 532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... mkdir resumed>) = 0 [pid 532] <... openat resumed>) = 3 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 532] write(3, "1000", 4) = 4 [pid 532] close(3) = 0 [pid 532] symlink("/dev/binderfs", "./binderfs") = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 533 [pid 532] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 531] <... bpf resumed>) = 0 [pid 531] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 532] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 533 attached [pid 533] set_robust_list(0x555555cf9760, 24) = 0 [pid 533] chdir("./44") = 0 [pid 533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 533] setpgid(0, 0) = 0 [pid 531] <... bpf resumed>) = 6 [pid 533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 531] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 533] <... openat resumed>) = 3 [pid 533] write(3, "1000", 4) = 4 [pid 533] close(3) = 0 [pid 533] symlink("/dev/binderfs", "./binderfs") = 0 [pid 533] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 533] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 532] <... bpf resumed>) = 4 [pid 530] <... bpf resumed>) = 7 [pid 529] <... bpf resumed>) = 7 [pid 532] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 531] <... bpf resumed>) = 7 [pid 530] exit_group(0 [pid 529] exit_group(0 [pid 532] <... bpf resumed>) = 5 [pid 531] exit_group(0 [pid 530] <... exit_group resumed>) = ? [pid 529] <... exit_group resumed>) = ? [pid 532] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 531] <... exit_group resumed>) = ? [pid 530] +++ exited with 0 +++ [pid 532] <... bpf resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=530, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 532] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 532] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./42/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./42") = 0 [pid 294] mkdir("./43", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 534 ./strace-static-x86_64: Process 534 attached [pid 534] set_robust_list(0x555555cf9760, 24) = 0 [pid 534] chdir("./43") = 0 [pid 534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 534] setpgid(0, 0) = 0 [pid 534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 534] write(3, "1000", 4) = 4 [pid 534] close(3) = 0 [pid 534] symlink("/dev/binderfs", "./binderfs") = 0 [pid 534] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 534] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 533] <... bpf resumed>) = 4 [pid 531] +++ exited with 0 +++ [pid 529] +++ exited with 0 +++ [pid 533] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=531, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 533] <... bpf resumed>) = 5 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 533] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 533] <... bpf resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 533] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 296] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 533] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... openat resumed>) = 3 [pid 296] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 296] newfstatat(3, "", [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 296] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./46/binderfs", [pid 296] newfstatat(AT_FDCWD, "./43/binderfs", [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./46/binderfs" [pid 296] unlink("./43/binderfs" [pid 293] <... unlink resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 293] close(3 [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./43" [pid 293] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 293] rmdir("./46" [pid 296] mkdir("./44", 0777 [pid 293] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 293] mkdir("./47", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 535 ./strace-static-x86_64: Process 535 attached [pid 535] set_robust_list(0x555555cf9760, 24) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 536 [pid 535] chdir("./44") = 0 [pid 535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 535] setpgid(0, 0) = 0 [pid 535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 535] write(3, "1000", 4) = 4 [pid 535] close(3) = 0 [pid 535] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 536 attached ) = 0 [pid 535] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 536] set_robust_list(0x555555cf9760, 24) = 0 [pid 536] chdir("./47" [pid 535] <... bpf resumed>) = 3 [pid 535] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 536] <... chdir resumed>) = 0 [pid 536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 536] setpgid(0, 0) = 0 [pid 534] <... bpf resumed>) = 4 [pid 532] <... bpf resumed>) = 7 [pid 535] <... bpf resumed>) = 4 [pid 534] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 533] <... bpf resumed>) = 7 [pid 532] exit_group(0 [pid 536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 535] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 534] <... bpf resumed>) = 5 [pid 533] exit_group(0 [pid 532] <... exit_group resumed>) = ? [pid 536] <... openat resumed>) = 3 [pid 535] <... bpf resumed>) = 5 [pid 534] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 533] <... exit_group resumed>) = ? [pid 534] <... bpf resumed>) = 0 [pid 534] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 536] write(3, "1000", 4 [pid 535] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 534] <... bpf resumed>) = 6 [pid 535] <... bpf resumed>) = 0 [pid 534] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 535] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 536] <... write resumed>) = 4 [pid 536] close(3) = 0 [pid 536] symlink("/dev/binderfs", "./binderfs" [pid 535] <... bpf resumed>) = 6 [pid 536] <... symlink resumed>) = 0 [pid 535] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 536] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 536] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 533] +++ exited with 0 +++ [pid 532] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=533, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 292] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./47/binderfs", [pid 292] newfstatat(AT_FDCWD, "./44/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./47/binderfs" [pid 292] unlink("./44/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 295] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... close resumed>) = 0 [pid 292] close(3 [pid 295] rmdir("./47" [pid 292] <... close resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 292] rmdir("./44" [pid 295] mkdir("./48", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 292] mkdir("./45", 0777 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 537 ./strace-static-x86_64: Process 537 attached [pid 537] set_robust_list(0x555555cf9760, 24) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 538 [pid 537] chdir("./48") = 0 [pid 537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 538 attached [pid 538] set_robust_list(0x555555cf9760, 24 [pid 537] setpgid(0, 0) = 0 [pid 537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 538] <... set_robust_list resumed>) = 0 [pid 537] <... openat resumed>) = 3 [pid 538] chdir("./45" [pid 537] write(3, "1000", 4 [pid 538] <... chdir resumed>) = 0 [pid 537] <... write resumed>) = 4 [pid 538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 537] close(3 [pid 538] <... prctl resumed>) = 0 [pid 537] <... close resumed>) = 0 [pid 538] setpgid(0, 0 [pid 537] symlink("/dev/binderfs", "./binderfs" [pid 538] <... setpgid resumed>) = 0 [pid 538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 538] write(3, "1000", 4) = 4 [pid 537] <... symlink resumed>) = 0 [pid 538] close(3 [pid 537] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 538] <... close resumed>) = 0 [pid 538] symlink("/dev/binderfs", "./binderfs") = 0 [pid 537] <... bpf resumed>) = 3 [pid 537] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 538] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 538] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 535] <... bpf resumed>) = 7 [pid 534] <... bpf resumed>) = 7 [pid 537] <... bpf resumed>) = 4 [pid 536] <... bpf resumed>) = 4 [pid 535] exit_group(0 [pid 537] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 535] <... exit_group resumed>) = ? [pid 534] exit_group(0 [pid 536] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 538] <... bpf resumed>) = 4 [pid 537] <... bpf resumed>) = 5 [pid 535] +++ exited with 0 +++ [pid 534] <... exit_group resumed>) = ? [pid 536] <... bpf resumed>) = 5 [pid 537] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 537] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 536] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 534] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=535, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 538] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 537] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 536] <... bpf resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=534, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 536] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 296] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(AT_FDCWD, "./44/binderfs", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./44/binderfs" [pid 294] newfstatat(AT_FDCWD, "./43/binderfs", [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] unlink("./43/binderfs" [pid 296] close(3 [pid 294] <... unlink resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 294] getdents64(3, [pid 296] rmdir("./44" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 294] close(3) = 0 [pid 296] mkdir("./45", 0777 [pid 536] <... bpf resumed>) = 6 [pid 294] rmdir("./43" [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 536] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./44", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 539 ./strace-static-x86_64: Process 539 attached [pid 539] set_robust_list(0x555555cf9760, 24) = 0 [pid 539] chdir("./45" [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 539] <... chdir resumed>) = 0 [pid 539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 539] setpgid(0, 0) = 0 [pid 539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 540 [pid 539] write(3, "1000", 4) = 4 [pid 539] close(3) = 0 [pid 539] symlink("/dev/binderfs", "./binderfs") = 0 [pid 538] <... bpf resumed>) = 5 [pid 539] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 538] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 539] <... bpf resumed>) = 3 [pid 538] <... bpf resumed>) = 0 [pid 538] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 539] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 540 attached [pid 540] set_robust_list(0x555555cf9760, 24) = 0 [pid 540] chdir("./44") = 0 [pid 540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 540] setpgid(0, 0) = 0 [pid 540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 540] write(3, "1000", 4) = 4 [pid 540] close(3) = 0 [pid 540] symlink("/dev/binderfs", "./binderfs") = 0 [pid 538] <... bpf resumed>) = 6 [pid 540] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 538] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 540] <... bpf resumed>) = 3 [pid 540] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 537] <... bpf resumed>) = 7 [pid 536] <... bpf resumed>) = 7 [pid 539] <... bpf resumed>) = 4 [pid 537] exit_group(0 [pid 536] exit_group(0 [pid 538] <... bpf resumed>) = 7 [pid 539] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 537] <... exit_group resumed>) = ? [pid 536] <... exit_group resumed>) = ? [pid 538] exit_group(0 [pid 539] <... bpf resumed>) = 5 [pid 539] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 538] <... exit_group resumed>) = ? [pid 539] <... bpf resumed>) = 0 [pid 539] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 539] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 540] <... bpf resumed>) = 4 [pid 537] +++ exited with 0 +++ [pid 536] +++ exited with 0 +++ [pid 540] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 538] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=537, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 540] <... bpf resumed>) = 5 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=536, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 540] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... restart_syscall resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 540] <... bpf resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 540] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 540] <... bpf resumed>) = 6 [pid 295] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 540] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... openat resumed>) = 3 [pid 293] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 295] getdents64(3, [pid 293] newfstatat(3, "", [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 295] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] getdents64(3, [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] newfstatat(AT_FDCWD, "./48/binderfs", [pid 292] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] unlink("./48/binderfs" [pid 293] newfstatat(AT_FDCWD, "./47/binderfs", [pid 292] newfstatat(AT_FDCWD, "./45/binderfs", [pid 295] <... unlink resumed>) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] unlink("./47/binderfs" [pid 292] unlink("./45/binderfs" [pid 295] close(3) = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] rmdir("./48" [pid 293] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 295] mkdir("./49", 0777 [pid 293] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... close resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 293] rmdir("./47" [pid 292] close(3 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./48", 0777 [pid 292] <... close resumed>) = 0 ./strace-static-x86_64: Process 541 attached [pid 293] <... mkdir resumed>) = 0 [pid 541] set_robust_list(0x555555cf9760, 24 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 541 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] rmdir("./45"./strace-static-x86_64: Process 542 attached [pid 541] <... set_robust_list resumed>) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 542 [pid 292] <... rmdir resumed>) = 0 [pid 542] set_robust_list(0x555555cf9760, 24 [pid 541] chdir("./49" [pid 542] <... set_robust_list resumed>) = 0 [pid 541] <... chdir resumed>) = 0 [pid 292] mkdir("./46", 0777 [pid 542] chdir("./48" [pid 541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 542] <... chdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 541] <... prctl resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 541] setpgid(0, 0./strace-static-x86_64: Process 543 attached [pid 542] <... prctl resumed>) = 0 [pid 541] <... setpgid resumed>) = 0 [pid 543] set_robust_list(0x555555cf9760, 24 [pid 542] setpgid(0, 0 [pid 541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 543 [pid 543] <... set_robust_list resumed>) = 0 [pid 542] <... setpgid resumed>) = 0 [pid 541] <... openat resumed>) = 3 [pid 541] write(3, "1000", 4 [pid 542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 541] <... write resumed>) = 4 [pid 543] chdir("./46" [pid 541] close(3) = 0 [pid 543] <... chdir resumed>) = 0 [pid 542] <... openat resumed>) = 3 [pid 541] symlink("/dev/binderfs", "./binderfs" [pid 543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 542] write(3, "1000", 4 [pid 541] <... symlink resumed>) = 0 [pid 543] <... prctl resumed>) = 0 [pid 542] <... write resumed>) = 4 [pid 543] setpgid(0, 0 [pid 542] close(3 [pid 541] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 543] <... setpgid resumed>) = 0 [pid 542] <... close resumed>) = 0 [pid 543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 542] symlink("/dev/binderfs", "./binderfs" [pid 543] <... openat resumed>) = 3 [pid 542] <... symlink resumed>) = 0 [pid 543] write(3, "1000", 4 [pid 542] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 541] <... bpf resumed>) = 3 [pid 543] <... write resumed>) = 4 [pid 542] <... bpf resumed>) = 3 [pid 541] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 543] close(3 [pid 542] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 543] <... close resumed>) = 0 [pid 543] symlink("/dev/binderfs", "./binderfs") = 0 [pid 543] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 543] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 539] <... bpf resumed>) = 7 [pid 543] <... bpf resumed>) = 4 [pid 542] <... bpf resumed>) = 4 [pid 541] <... bpf resumed>) = 4 [pid 540] <... bpf resumed>) = 7 [pid 539] exit_group(0 [pid 543] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 542] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 541] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 540] exit_group(0 [pid 539] <... exit_group resumed>) = ? [pid 543] <... bpf resumed>) = 5 [pid 542] <... bpf resumed>) = 5 [pid 541] <... bpf resumed>) = 5 [pid 540] <... exit_group resumed>) = ? [pid 543] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 542] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 541] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 543] <... bpf resumed>) = 0 [pid 541] <... bpf resumed>) = 0 [pid 543] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 541] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 543] <... bpf resumed>) = 6 [pid 542] <... bpf resumed>) = 0 [pid 541] <... bpf resumed>) = 6 [pid 543] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 542] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 541] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 542] <... bpf resumed>) = 6 [pid 542] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 540] +++ exited with 0 +++ [pid 539] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=539, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=540, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 296] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] getdents64(3, [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./45/binderfs", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] unlink("./45/binderfs" [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./44/binderfs", [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 294] unlink("./44/binderfs" [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./45" [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 296] <... rmdir resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] mkdir("./46", 0777 [pid 294] close(3) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] rmdir("./44" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 544 attached [pid 294] mkdir("./45", 0777 [pid 544] set_robust_list(0x555555cf9760, 24 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 544 [pid 294] <... mkdir resumed>) = 0 [pid 544] <... set_robust_list resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 545 attached [pid 544] chdir("./46" [pid 545] set_robust_list(0x555555cf9760, 24 [pid 544] <... chdir resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 545 [pid 545] <... set_robust_list resumed>) = 0 [pid 544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 545] chdir("./45" [pid 544] <... prctl resumed>) = 0 [pid 545] <... chdir resumed>) = 0 [pid 544] setpgid(0, 0) = 0 [pid 545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 545] <... prctl resumed>) = 0 [pid 544] <... openat resumed>) = 3 [pid 545] setpgid(0, 0) = 0 [pid 545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 544] write(3, "1000", 4 [pid 545] <... openat resumed>) = 3 [pid 544] <... write resumed>) = 4 [pid 545] write(3, "1000", 4 [pid 544] close(3 [pid 545] <... write resumed>) = 4 [pid 544] <... close resumed>) = 0 [pid 545] close(3 [pid 544] symlink("/dev/binderfs", "./binderfs" [pid 545] <... close resumed>) = 0 [pid 545] symlink("/dev/binderfs", "./binderfs") = 0 [pid 544] <... symlink resumed>) = 0 [pid 545] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 544] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 545] <... bpf resumed>) = 3 [pid 544] <... bpf resumed>) = 3 [pid 545] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 544] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 543] <... bpf resumed>) = 7 [pid 541] <... bpf resumed>) = 7 [pid 545] <... bpf resumed>) = 4 [pid 544] <... bpf resumed>) = 4 [pid 543] exit_group(0 [pid 542] <... bpf resumed>) = 7 [pid 541] exit_group(0 [pid 545] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 543] <... exit_group resumed>) = ? [pid 541] <... exit_group resumed>) = ? [pid 542] exit_group(0 [pid 545] <... bpf resumed>) = 5 [pid 544] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 542] <... exit_group resumed>) = ? [pid 541] +++ exited with 0 +++ [pid 545] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 545] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 544] <... bpf resumed>) = 5 [pid 545] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=541, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 544] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 544] <... bpf resumed>) = 0 [pid 544] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./49/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./49") = 0 [pid 544] <... bpf resumed>) = 6 [pid 295] mkdir("./50", 0777 [pid 544] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 546 attached , child_tidptr=0x555555cf9750) = 546 [pid 546] set_robust_list(0x555555cf9760, 24) = 0 [pid 546] chdir("./50") = 0 [pid 546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 546] setpgid(0, 0) = 0 [pid 546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 546] write(3, "1000", 4) = 4 [pid 546] close(3) = 0 [pid 546] symlink("/dev/binderfs", "./binderfs") = 0 [pid 546] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 546] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 543] +++ exited with 0 +++ [pid 542] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=542, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=543, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 293] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 293] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 293] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./48/binderfs", [pid 292] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] unlink("./48/binderfs" [pid 292] newfstatat(AT_FDCWD, "./46/binderfs", [pid 293] <... unlink resumed>) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] getdents64(3, [pid 292] unlink("./46/binderfs" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3 [pid 292] <... unlink resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] getdents64(3, [pid 293] rmdir("./48" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] close(3 [pid 293] mkdir("./49", 0777 [pid 292] <... close resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] rmdir("./46" [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./47", 0777 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 547 ./strace-static-x86_64: Process 547 attached [pid 547] set_robust_list(0x555555cf9760, 24) = 0 [pid 547] chdir("./49" [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 547] <... chdir resumed>) = 0 [pid 547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 547] setpgid(0, 0) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 548 [pid 547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 547] write(3, "1000", 4) = 4 [pid 547] close(3) = 0 [pid 547] symlink("/dev/binderfs", "./binderfs") = 0 [pid 547] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 547] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 548 attached [pid 548] set_robust_list(0x555555cf9760, 24) = 0 [pid 548] chdir("./47") = 0 [pid 548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 548] setpgid(0, 0) = 0 [pid 548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 548] write(3, "1000", 4) = 4 [pid 548] close(3) = 0 [pid 548] symlink("/dev/binderfs", "./binderfs") = 0 [pid 548] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 548] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 545] <... bpf resumed>) = 7 [pid 547] <... bpf resumed>) = 4 [pid 546] <... bpf resumed>) = 4 [pid 544] <... bpf resumed>) = 7 [pid 547] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 546] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 545] exit_group(0 [pid 547] <... bpf resumed>) = 5 [pid 544] exit_group(0 [pid 546] <... bpf resumed>) = 5 [pid 547] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 545] <... exit_group resumed>) = ? [pid 544] <... exit_group resumed>) = ? [pid 546] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 547] <... bpf resumed>) = 0 [pid 548] <... bpf resumed>) = 4 [pid 547] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 548] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 547] <... bpf resumed>) = 6 [pid 546] <... bpf resumed>) = 0 [pid 548] <... bpf resumed>) = 5 [pid 547] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 546] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 548] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 546] <... bpf resumed>) = 6 [pid 548] <... bpf resumed>) = 0 [pid 546] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 548] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 548] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 545] +++ exited with 0 +++ [pid 544] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=545, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] <... restart_syscall resumed>) = 0 [pid 294] umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... openat resumed>) = 3 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] newfstatat(3, "", [pid 296] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] getdents64(3, [pid 296] unlink("./46/binderfs") = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, [pid 294] umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... close resumed>) = 0 [pid 294] newfstatat(AT_FDCWD, "./45/binderfs", [pid 296] rmdir("./46") = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] mkdir("./47", 0777) = 0 [pid 294] unlink("./45/binderfs" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 549 attached [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 549 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 549] set_robust_list(0x555555cf9760, 24 [pid 294] <... close resumed>) = 0 [pid 549] <... set_robust_list resumed>) = 0 [pid 549] chdir("./47" [pid 294] rmdir("./45" [pid 549] <... chdir resumed>) = 0 [pid 549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 549] setpgid(0, 0) = 0 [pid 549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 294] <... rmdir resumed>) = 0 [pid 549] <... openat resumed>) = 3 [pid 294] mkdir("./46", 0777 [pid 549] write(3, "1000", 4) = 4 [pid 549] close(3) = 0 [pid 549] symlink("/dev/binderfs", "./binderfs") = 0 [pid 294] <... mkdir resumed>) = 0 [pid 549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 550 attached [pid 550] set_robust_list(0x555555cf9760, 24 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 550 [pid 549] <... bpf resumed>) = 3 [pid 549] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 550] <... set_robust_list resumed>) = 0 [pid 550] chdir("./46") = 0 [pid 550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 550] setpgid(0, 0) = 0 [pid 550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 550] write(3, "1000", 4) = 4 [pid 550] close(3) = 0 [pid 550] symlink("/dev/binderfs", "./binderfs") = 0 [pid 550] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 550] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 547] <... bpf resumed>) = 7 [pid 550] <... bpf resumed>) = 4 [pid 549] <... bpf resumed>) = 4 [pid 548] <... bpf resumed>) = 7 [pid 547] exit_group(0 [pid 546] <... bpf resumed>) = 7 [pid 550] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 549] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 547] <... exit_group resumed>) = ? [pid 550] <... bpf resumed>) = 5 [pid 549] <... bpf resumed>) = 5 [pid 548] exit_group(0 [pid 547] +++ exited with 0 +++ [pid 546] exit_group(0 [pid 550] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 549] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 548] <... exit_group resumed>) = ? [pid 550] <... bpf resumed>) = 0 [pid 549] <... bpf resumed>) = 0 [pid 546] <... exit_group resumed>) = ? [pid 550] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 549] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 550] <... bpf resumed>) = 6 [pid 549] <... bpf resumed>) = 6 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 550] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 549] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./49/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./49") = 0 [pid 293] mkdir("./50", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 551 ./strace-static-x86_64: Process 551 attached [pid 551] set_robust_list(0x555555cf9760, 24) = 0 [pid 551] chdir("./50") = 0 [pid 551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 551] setpgid(0, 0) = 0 [pid 551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 551] write(3, "1000", 4) = 4 [pid 551] close(3) = 0 [pid 551] symlink("/dev/binderfs", "./binderfs") = 0 [pid 551] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 551] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 548] +++ exited with 0 +++ [pid 546] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=546, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=548, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 292] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... openat resumed>) = 3 [pid 295] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 295] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./50/binderfs", [pid 292] newfstatat(AT_FDCWD, "./47/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./50/binderfs" [pid 292] unlink("./47/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 292] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./50" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 292] close(3 [pid 295] mkdir("./51", 0777 [pid 292] <... close resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 292] rmdir("./47" [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./48", 0777 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 552 ./strace-static-x86_64: Process 552 attached [pid 552] set_robust_list(0x555555cf9760, 24) = 0 [pid 552] chdir("./51" [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 552] <... chdir resumed>) = 0 [pid 552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 552] setpgid(0, 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 553 [pid 552] <... setpgid resumed>) = 0 [pid 552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 552] write(3, "1000", 4) = 4 [pid 552] close(3) = 0 [pid 552] symlink("/dev/binderfs", "./binderfs") = 0 [pid 552] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 552] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 553 attached [pid 553] set_robust_list(0x555555cf9760, 24) = 0 [pid 553] chdir("./48") = 0 [pid 553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 553] setpgid(0, 0) = 0 [pid 553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 553] write(3, "1000", 4) = 4 [pid 553] close(3) = 0 [pid 553] symlink("/dev/binderfs", "./binderfs") = 0 [pid 553] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 553] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 550] <... bpf resumed>) = 7 [pid 549] <... bpf resumed>) = 7 [pid 552] <... bpf resumed>) = 4 [pid 551] <... bpf resumed>) = 4 [pid 550] exit_group(0 [pid 549] exit_group(0 [pid 552] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 551] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 550] <... exit_group resumed>) = ? [pid 549] <... exit_group resumed>) = ? [pid 552] <... bpf resumed>) = 5 [pid 551] <... bpf resumed>) = 5 [pid 550] +++ exited with 0 +++ [pid 549] +++ exited with 0 +++ [pid 552] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 551] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 553] <... bpf resumed>) = 4 [pid 552] <... bpf resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=549, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 551] <... bpf resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 553] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 552] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 551] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 553] <... bpf resumed>) = 5 [pid 552] <... bpf resumed>) = 6 [pid 553] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 552] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 553] <... bpf resumed>) = 0 [pid 553] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 551] <... bpf resumed>) = 6 [pid 551] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 553] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 294] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 294] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 294] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./47/binderfs", [pid 294] newfstatat(AT_FDCWD, "./46/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./47/binderfs" [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] unlink("./46/binderfs" [pid 296] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 294] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./47" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 294] close(3 [pid 296] mkdir("./48", 0777 [pid 294] <... close resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] rmdir("./46" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... rmdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 554 [pid 294] mkdir("./47", 0777./strace-static-x86_64: Process 554 attached [pid 554] set_robust_list(0x555555cf9760, 24) = 0 [pid 554] chdir("./48") = 0 [pid 294] <... mkdir resumed>) = 0 [pid 554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 554] <... prctl resumed>) = 0 [pid 554] setpgid(0, 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 555 [pid 554] <... setpgid resumed>) = 0 [pid 554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 554] write(3, "1000", 4) = 4 [pid 554] close(3) = 0 [pid 554] symlink("/dev/binderfs", "./binderfs") = 0 [pid 554] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 555 attached ) = 3 [pid 554] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 555] set_robust_list(0x555555cf9760, 24) = 0 [pid 555] chdir("./47") = 0 [pid 555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 555] setpgid(0, 0) = 0 [pid 555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 555] write(3, "1000", 4) = 4 [pid 555] close(3) = 0 [pid 555] symlink("/dev/binderfs", "./binderfs") = 0 [pid 555] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 555] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 552] <... bpf resumed>) = 7 [pid 554] <... bpf resumed>) = 4 [pid 553] <... bpf resumed>) = 7 [pid 552] exit_group(0 [pid 551] <... bpf resumed>) = 7 [pid 555] <... bpf resumed>) = 4 [pid 553] exit_group(0 [pid 552] <... exit_group resumed>) = ? [pid 555] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 554] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 553] <... exit_group resumed>) = ? [pid 552] +++ exited with 0 +++ [pid 551] exit_group(0 [pid 555] <... bpf resumed>) = 5 [pid 554] <... bpf resumed>) = 5 [pid 551] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=552, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 555] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 554] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 295] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./51/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./51") = 0 [pid 295] mkdir("./52", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 556 ./strace-static-x86_64: Process 556 attached [pid 556] set_robust_list(0x555555cf9760, 24) = 0 [pid 556] chdir("./52" [pid 554] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 555] <... bpf resumed>) = 0 [pid 554] <... bpf resumed>) = 6 [pid 555] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 556] <... chdir resumed>) = 0 [pid 554] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 555] <... bpf resumed>) = 6 [pid 556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 555] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 556] setpgid(0, 0) = 0 [pid 556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 556] write(3, "1000", 4) = 4 [pid 556] close(3) = 0 [pid 556] symlink("/dev/binderfs", "./binderfs") = 0 [pid 556] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 556] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 553] +++ exited with 0 +++ [pid 551] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=551, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=553, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 292] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./50/binderfs", [pid 292] newfstatat(AT_FDCWD, "./48/binderfs", [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./50/binderfs" [pid 292] unlink("./48/binderfs" [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 293] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... close resumed>) = 0 [pid 292] close(3 [pid 293] rmdir("./50" [pid 292] <... close resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] rmdir("./48" [pid 293] mkdir("./51", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] mkdir("./49", 0777 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 557 ./strace-static-x86_64: Process 557 attached [pid 557] set_robust_list(0x555555cf9760, 24) = 0 [pid 557] chdir("./51" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 558 [pid 557] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 558 attached [pid 557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 558] set_robust_list(0x555555cf9760, 24) = 0 [pid 557] setpgid(0, 0) = 0 [pid 557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 558] chdir("./49" [pid 557] write(3, "1000", 4) = 4 [pid 558] <... chdir resumed>) = 0 [pid 557] close(3 [pid 558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 557] <... close resumed>) = 0 [pid 558] <... prctl resumed>) = 0 [pid 557] symlink("/dev/binderfs", "./binderfs") = 0 [pid 558] setpgid(0, 0 [pid 557] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 558] <... setpgid resumed>) = 0 [pid 557] <... bpf resumed>) = 3 [pid 557] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 558] write(3, "1000", 4) = 4 [pid 558] close(3) = 0 [pid 558] symlink("/dev/binderfs", "./binderfs") = 0 [pid 558] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 558] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 554] <... bpf resumed>) = 7 [pid 558] <... bpf resumed>) = 4 [pid 557] <... bpf resumed>) = 4 [pid 556] <... bpf resumed>) = 4 [pid 555] <... bpf resumed>) = 7 [pid 554] exit_group(0 [pid 558] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 557] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 556] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 554] <... exit_group resumed>) = ? [pid 558] <... bpf resumed>) = 5 [pid 557] <... bpf resumed>) = 5 [pid 556] <... bpf resumed>) = 5 [pid 555] exit_group(0 [pid 558] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 557] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 556] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 555] <... exit_group resumed>) = ? [pid 558] <... bpf resumed>) = 0 [pid 557] <... bpf resumed>) = 0 [pid 556] <... bpf resumed>) = 0 [pid 556] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 558] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 557] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 556] <... bpf resumed>) = 6 [pid 556] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 557] <... bpf resumed>) = 6 [pid 557] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 558] <... bpf resumed>) = 6 [pid 558] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 554] +++ exited with 0 +++ [pid 555] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=554, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=555, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] <... restart_syscall resumed>) = 0 [pid 294] umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 296] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] newfstatat(3, "", [pid 296] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] newfstatat(3, "", [pid 294] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, [pid 294] umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./47/binderfs", [pid 296] newfstatat(AT_FDCWD, "./48/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./47/binderfs" [pid 296] unlink("./48/binderfs" [pid 294] <... unlink resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 296] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 296] close(3 [pid 294] <... close resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 294] rmdir("./47" [pid 296] rmdir("./48" [pid 294] <... rmdir resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 294] mkdir("./48", 0777 [pid 296] mkdir("./49", 0777 [pid 294] <... mkdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 559 attached [pid 559] set_robust_list(0x555555cf9760, 24) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 559 [pid 559] chdir("./48" [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 560 [pid 559] <... chdir resumed>) = 0 [pid 559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 559] setpgid(0, 0) = 0 [pid 559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 559] write(3, "1000", 4) = 4 [pid 559] close(3) = 0 [pid 559] symlink("/dev/binderfs", "./binderfs") = 0 [pid 559] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 560 attached [pid 560] set_robust_list(0x555555cf9760, 24) = 0 [pid 560] chdir("./49") = 0 [pid 560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 560] setpgid(0, 0) = 0 [pid 560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 560] write(3, "1000", 4) = 4 [pid 560] close(3) = 0 [pid 560] symlink("/dev/binderfs", "./binderfs") = 0 [pid 560] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 559] <... bpf resumed>) = 3 [pid 560] <... bpf resumed>) = 3 [pid 560] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 559] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 558] <... bpf resumed>) = 7 [pid 557] <... bpf resumed>) = 7 [pid 556] <... bpf resumed>) = 7 [pid 560] <... bpf resumed>) = 4 [pid 559] <... bpf resumed>) = 4 [pid 558] exit_group(0 [pid 557] exit_group(0 [pid 558] <... exit_group resumed>) = ? [pid 557] <... exit_group resumed>) = ? [pid 556] exit_group(0 [pid 560] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 559] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 558] +++ exited with 0 +++ [pid 557] +++ exited with 0 +++ [pid 556] <... exit_group resumed>) = ? [pid 560] <... bpf resumed>) = 5 [pid 556] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=556, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=558, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 560] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 559] <... bpf resumed>) = 5 [pid 293] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 560] <... bpf resumed>) = 0 [pid 559] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 560] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 559] <... bpf resumed>) = 0 [pid 295] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 559] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] newfstatat(3, "", [pid 293] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] getdents64(3, [pid 295] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(AT_FDCWD, "./52/binderfs", [pid 293] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] unlink("./52/binderfs" [pid 292] newfstatat(AT_FDCWD, "./49/binderfs", [pid 293] newfstatat(AT_FDCWD, "./51/binderfs", [pid 295] <... unlink resumed>) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./49/binderfs" [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] unlink("./51/binderfs" [pid 292] <... unlink resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] close(3 [pid 292] getdents64(3, [pid 293] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] rmdir("./52" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3 [pid 295] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 295] mkdir("./53", 0777 [pid 293] close(3 [pid 292] rmdir("./49" [pid 295] <... mkdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... close resumed>) = 0 [pid 292] mkdir("./50", 0777 [pid 293] rmdir("./51"./strace-static-x86_64: Process 561 attached [pid 561] set_robust_list(0x555555cf9760, 24) = 0 [pid 561] chdir("./53" [pid 292] <... mkdir resumed>) = 0 [pid 561] <... chdir resumed>) = 0 [pid 561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 561] setpgid(0, 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 561 [pid 293] mkdir("./52", 0777 [pid 561] <... setpgid resumed>) = 0 [pid 561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 561] write(3, "1000", 4) = 4 [pid 561] close(3) = 0 [pid 561] symlink("/dev/binderfs", "./binderfs") = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 562 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 561] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 560] <... bpf resumed>) = 6 [pid 559] <... bpf resumed>) = 6 [pid 561] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 559] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 563 [pid 560] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 561] <... bpf resumed>) = 4 [pid 561] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 561] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 561] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 ./strace-static-x86_64: Process 562 attached [pid 562] set_robust_list(0x555555cf9760, 24 [pid 561] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16./strace-static-x86_64: Process 563 attached [pid 562] <... set_robust_list resumed>) = 0 [pid 562] chdir("./50" [pid 563] set_robust_list(0x555555cf9760, 24) = 0 [pid 562] <... chdir resumed>) = 0 [pid 562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 563] chdir("./52" [pid 562] <... prctl resumed>) = 0 [pid 563] <... chdir resumed>) = 0 [pid 562] setpgid(0, 0 [pid 563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 562] <... setpgid resumed>) = 0 [pid 562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 563] <... prctl resumed>) = 0 [pid 561] <... bpf resumed>) = 7 [pid 560] <... bpf resumed>) = 7 [pid 559] <... bpf resumed>) = 7 [pid 562] <... openat resumed>) = 3 [pid 561] exit_group(0 [pid 560] exit_group(0 [pid 559] exit_group(0 [pid 563] setpgid(0, 0 [pid 560] <... exit_group resumed>) = ? [pid 559] <... exit_group resumed>) = ? [pid 563] <... setpgid resumed>) = 0 [pid 562] write(3, "1000", 4 [pid 561] <... exit_group resumed>) = ? [pid 560] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=560, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW [pid 562] <... write resumed>) = 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 562] close(3 [pid 296] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 562] <... close resumed>) = 0 [pid 296] newfstatat(3, "", [pid 562] symlink("/dev/binderfs", "./binderfs" [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 562] <... symlink resumed>) = 0 [pid 296] unlink("./49/binderfs" [pid 563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 562] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 563] <... openat resumed>) = 3 [pid 296] close(3) = 0 [pid 296] rmdir("./49" [pid 563] write(3, "1000", 4 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./50", 0777 [pid 563] <... write resumed>) = 4 [pid 563] close(3 [pid 296] <... mkdir resumed>) = 0 [pid 563] <... close resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 563] symlink("/dev/binderfs", "./binderfs" [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 564 ./strace-static-x86_64: Process 564 attached [pid 564] set_robust_list(0x555555cf9760, 24) = 0 [pid 564] chdir("./50" [pid 563] <... symlink resumed>) = 0 [pid 564] <... chdir resumed>) = 0 [pid 564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 564] setpgid(0, 0) = 0 [pid 564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 562] <... bpf resumed>) = 3 [pid 563] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 564] <... openat resumed>) = 3 [pid 564] write(3, "1000", 4) = 4 [pid 564] close(3) = 0 [pid 564] symlink("/dev/binderfs", "./binderfs") = 0 [pid 564] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 563] <... bpf resumed>) = 3 [pid 562] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 563] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 564] <... bpf resumed>) = 3 [pid 564] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 559] +++ exited with 0 +++ [pid 564] <... bpf resumed>) = 4 [pid 563] <... bpf resumed>) = 4 [pid 562] <... bpf resumed>) = 4 [pid 561] +++ exited with 0 +++ [pid 564] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 563] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 562] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=559, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 564] <... bpf resumed>) = 5 [pid 564] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 563] <... bpf resumed>) = 5 [pid 562] <... bpf resumed>) = 5 [pid 564] <... bpf resumed>) = 0 [pid 564] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 563] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 562] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 564] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW [pid 564] <... bpf resumed>) = 7 [pid 563] <... bpf resumed>) = 0 [pid 562] <... bpf resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 564] exit_group(0 [pid 563] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 562] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 564] <... exit_group resumed>) = ? [pid 295] <... openat resumed>) = 3 [pid 564] +++ exited with 0 +++ [pid 563] <... bpf resumed>) = 6 [pid 562] <... bpf resumed>) = 6 [pid 295] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 563] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 562] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=564, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 295] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 295] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... restart_syscall resumed>) = 0 [pid 295] newfstatat(AT_FDCWD, "./53/binderfs", [pid 294] umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] unlink("./53/binderfs" [pid 294] newfstatat(AT_FDCWD, "./48/binderfs", [pid 296] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... unlink resumed>) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] getdents64(3, [pid 294] unlink("./48/binderfs" [pid 296] <... openat resumed>) = 3 [pid 294] <... unlink resumed>) = 0 [pid 296] newfstatat(3, "", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] close(3 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 294] close(3 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] rmdir("./53" [pid 294] <... close resumed>) = 0 [pid 296] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] rmdir("./48" [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... rmdir resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./49", 0777 [pid 296] newfstatat(AT_FDCWD, "./50/binderfs", [pid 295] mkdir("./54", 0777 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./50/binderfs" [pid 294] <... mkdir resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] getdents64(3, [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 ./strace-static-x86_64: Process 565 attached [pid 296] rmdir("./50" [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 565 [pid 565] set_robust_list(0x555555cf9760, 24 [pid 296] <... rmdir resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 566 [pid 565] <... set_robust_list resumed>) = 0 [pid 296] mkdir("./51", 0777 [pid 565] chdir("./49" [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 565] <... chdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 567 [pid 565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 566 attached [pid 566] set_robust_list(0x555555cf9760, 24 [pid 565] setpgid(0, 0 [pid 566] <... set_robust_list resumed>) = 0 [pid 566] chdir("./54" [pid 565] <... setpgid resumed>) = 0 [pid 566] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 567 attached [pid 565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 566] setpgid(0, 0) = 0 [pid 566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 565] <... openat resumed>) = 3 [pid 565] write(3, "1000", 4) = 4 [pid 565] close(3 [pid 567] set_robust_list(0x555555cf9760, 24 [pid 566] <... openat resumed>) = 3 [pid 565] <... close resumed>) = 0 [pid 566] write(3, "1000", 4) = 4 [pid 566] close(3) = 0 [pid 566] symlink("/dev/binderfs", "./binderfs" [pid 567] <... set_robust_list resumed>) = 0 [pid 566] <... symlink resumed>) = 0 [pid 565] symlink("/dev/binderfs", "./binderfs" [pid 567] chdir("./51" [pid 565] <... symlink resumed>) = 0 [pid 567] <... chdir resumed>) = 0 [pid 567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 565] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 566] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 567] <... prctl resumed>) = 0 [pid 567] setpgid(0, 0) = 0 [pid 567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 567] write(3, "1000", 4) = 4 [pid 567] close(3) = 0 [pid 565] <... bpf resumed>) = 3 [pid 567] symlink("/dev/binderfs", "./binderfs") = 0 [pid 565] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 567] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 566] <... bpf resumed>) = 3 [pid 567] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 566] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 562] <... bpf resumed>) = 7 [pid 565] <... bpf resumed>) = 4 [pid 563] <... bpf resumed>) = 7 [pid 567] <... bpf resumed>) = 4 [pid 566] <... bpf resumed>) = 4 [pid 562] exit_group(0 [pid 567] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 566] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 563] exit_group(0 [pid 562] <... exit_group resumed>) = ? [pid 565] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 566] <... bpf resumed>) = 5 [pid 563] <... exit_group resumed>) = ? [pid 566] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 566] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 565] <... bpf resumed>) = 5 [pid 566] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 565] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 567] <... bpf resumed>) = 5 [pid 565] <... bpf resumed>) = 0 [pid 565] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 567] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 567] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 565] <... bpf resumed>) = 6 [pid 567] <... bpf resumed>) = 6 [pid 565] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 567] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 562] +++ exited with 0 +++ [pid 563] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=563, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... openat resumed>) = 3 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(3, "", [pid 292] newfstatat(AT_FDCWD, "./50/binderfs", [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] getdents64(3, [pid 292] unlink("./50/binderfs" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... unlink resumed>) = 0 [pid 293] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] getdents64(3, [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] newfstatat(AT_FDCWD, "./52/binderfs", [pid 292] close(3 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... close resumed>) = 0 [pid 293] unlink("./52/binderfs" [pid 292] rmdir("./50" [pid 293] <... unlink resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 293] getdents64(3, [pid 292] mkdir("./51", 0777 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 293] close(3 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... close resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 568 [pid 293] rmdir("./52"./strace-static-x86_64: Process 568 attached [pid 568] set_robust_list(0x555555cf9760, 24 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./53", 0777 [pid 568] <... set_robust_list resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 568] chdir("./51"./strace-static-x86_64: Process 569 attached [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 569 [pid 569] set_robust_list(0x555555cf9760, 24 [pid 568] <... chdir resumed>) = 0 [pid 569] <... set_robust_list resumed>) = 0 [pid 569] chdir("./53" [pid 568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 569] <... chdir resumed>) = 0 [pid 569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 569] setpgid(0, 0 [pid 568] <... prctl resumed>) = 0 [pid 569] <... setpgid resumed>) = 0 [pid 569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 568] setpgid(0, 0 [pid 569] <... openat resumed>) = 3 [pid 568] <... setpgid resumed>) = 0 [pid 568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 569] write(3, "1000", 4) = 4 [pid 569] close(3) = 0 [pid 569] symlink("/dev/binderfs", "./binderfs") = 0 [pid 568] <... openat resumed>) = 3 [pid 569] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 568] write(3, "1000", 4 [pid 569] <... bpf resumed>) = 3 [pid 568] <... write resumed>) = 4 [pid 569] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 568] close(3) = 0 [pid 568] symlink("/dev/binderfs", "./binderfs") = 0 [pid 568] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 568] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 566] <... bpf resumed>) = 7 [pid 565] <... bpf resumed>) = 7 [pid 569] <... bpf resumed>) = 4 [pid 568] <... bpf resumed>) = 4 [pid 567] <... bpf resumed>) = 7 [pid 566] exit_group(0 [pid 569] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 568] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 565] exit_group(0 [pid 568] <... bpf resumed>) = 5 [pid 567] exit_group(0 [pid 566] <... exit_group resumed>) = ? [pid 568] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 568] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 567] <... exit_group resumed>) = ? [pid 565] <... exit_group resumed>) = ? [pid 568] <... bpf resumed>) = 6 [pid 566] +++ exited with 0 +++ [pid 568] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16) = 7 [pid 568] exit_group(0) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=566, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 569] <... bpf resumed>) = 5 [pid 569] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 569] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./54/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./54") = 0 [pid 295] mkdir("./55", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 570 attached [pid 570] set_robust_list(0x555555cf9760, 24) = 0 [pid 570] chdir("./55") = 0 [pid 570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 570 [pid 570] <... prctl resumed>) = 0 [pid 570] setpgid(0, 0) = 0 [ 26.936614][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000103, exited with 00000102? [ 26.948440][ T569] BUG: scheduling while atomic: syz-executor156/569/0x00000002 [ 26.955895][ T569] Modules linked in: [ 26.959652][ T569] Preemption disabled at: [ 26.959658][ T569] [] __purge_vmap_area_lazy+0x28d/0x1690 [ 26.970866][ T569] CPU: 0 PID: 569 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 26.982292][ T569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 26.993857][ T569] Call Trace: [ 26.997478][ T569] [ 27.002713][ T569] dump_stack_lvl+0x151/0x1b7 [ 27.007441][ T569] ? __purge_vmap_area_lazy+0x28d/0x1690 [ 27.012905][ T569] ? __purge_vmap_area_lazy+0x28d/0x1690 [ 27.018555][ T569] ? io_uring_drop_tctx_refs+0x190/0x190 [ 27.024014][ T569] ? __purge_vmap_area_lazy+0x28d/0x1690 [ 27.029485][ T569] dump_stack+0x15/0x17 [ 27.033500][ T569] __schedule_bug+0x195/0x260 [ 27.037988][ T569] ? ttwu_queue_wakelist+0x510/0x510 [ 27.043107][ T569] __schedule+0xd19/0x1590 [ 27.047365][ T569] ? __kasan_check_write+0x14/0x20 [ 27.052313][ T569] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 27.057254][ T569] ? __sched_text_start+0x8/0x8 [ 27.061940][ T569] ? cgroup_update_frozen+0x15f/0x980 [ 27.067150][ T569] schedule+0x11f/0x1e0 [ 27.071143][ T569] ptrace_stop+0x4ea/0xa90 [ 27.075465][ T569] ptrace_notify+0x22b/0x350 [ 27.080162][ T569] ? do_notify_parent+0xa30/0xa30 [ 27.085137][ T569] ? __kasan_check_read+0x11/0x20 [ 27.089989][ T569] syscall_exit_to_user_mode+0xac/0x160 [ 27.095368][ T569] do_syscall_64+0x49/0xb0 [ 27.099622][ T569] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.105432][ T569] RIP: 0033:0x7f5bb48efb19 [ 27.109689][ T569] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 27.129129][ T569] RSP: 002b:00007ffc13478ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [pid 570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 570] write(3, "1000", 4) = 4 [pid 570] close(3) = 0 [pid 570] symlink("/dev/binderfs", "./binderfs") = 0 [pid 570] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 569] <... bpf resumed>) = 6 [pid 568] +++ exited with 0 +++ [pid 567] +++ exited with 0 +++ [pid 570] <... bpf resumed>) = 3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=567, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 570] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 569] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... openat resumed>) = 3 [pid 296] getdents64(3, [pid 292] newfstatat(3, "", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] getdents64(3, [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./51/binderfs" [pid 292] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... unlink resumed>) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] newfstatat(AT_FDCWD, "./51/binderfs", [pid 296] close(3 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... close resumed>) = 0 [pid 292] unlink("./51/binderfs" [pid 296] rmdir("./51" [pid 292] <... unlink resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 292] getdents64(3, [pid 296] mkdir("./52", 0777 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 292] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./51"./strace-static-x86_64: Process 573 attached [pid 573] set_robust_list(0x555555cf9760, 24) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 573 [pid 573] chdir("./52" [pid 292] mkdir("./52", 0777 [pid 573] <... chdir resumed>) = 0 [pid 573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 573] setpgid(0, 0) = 0 [pid 573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 573] write(3, "1000", 4 [pid 292] <... mkdir resumed>) = 0 [pid 573] <... write resumed>) = 4 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 573] close(3) = 0 [pid 573] symlink("/dev/binderfs", "./binderfs") = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 574 [pid 573] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 573] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 574 attached [pid 574] set_robust_list(0x555555cf9760, 24) = 0 [pid 574] chdir("./52") = 0 [pid 574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 574] setpgid(0, 0) = 0 [pid 574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 574] write(3, "1000", 4) = 4 [pid 574] close(3) = 0 [pid 574] symlink("/dev/binderfs", "./binderfs") = 0 [pid 574] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 574] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 570] <... bpf resumed>) = 4 [pid 565] +++ exited with 0 +++ [pid 570] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 574] <... bpf resumed>) = 4 [pid 573] <... bpf resumed>) = 4 [pid 570] <... bpf resumed>) = 5 [pid 569] <... bpf resumed>) = 7 [pid 574] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 573] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 570] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=565, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 574] <... bpf resumed>) = 5 [pid 573] <... bpf resumed>) = 5 [pid 570] <... bpf resumed>) = 0 [pid 569] exit_group(0 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 574] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 573] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 570] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 569] <... exit_group resumed>) = ? [pid 574] <... bpf resumed>) = 0 [pid 573] <... bpf resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 570] <... bpf resumed>) = 6 [pid 569] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=569, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 570] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 574] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 573] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./49/binderfs", [pid 293] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... openat resumed>) = 3 [pid 294] unlink("./49/binderfs" [pid 293] newfstatat(3, "", [pid 294] <... unlink resumed>) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 293] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] close(3 [pid 293] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] <... close resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./53/binderfs", [pid 294] rmdir("./49" [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 293] unlink("./53/binderfs" [pid 294] mkdir("./50", 0777 [pid 293] <... unlink resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 293] getdents64(3, [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 575 [pid 293] close(3./strace-static-x86_64: Process 575 attached ) = 0 [pid 293] rmdir("./53" [pid 575] set_robust_list(0x555555cf9760, 24) = 0 [pid 575] chdir("./50") = 0 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./54", 0777 [pid 575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 575] setpgid(0, 0) = 0 [pid 575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 575] write(3, "1000", 4) = 4 [pid 575] close(3) = 0 [pid 575] symlink("/dev/binderfs", "./binderfs") = 0 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 575] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 573] <... bpf resumed>) = 6 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 576 [pid 575] <... bpf resumed>) = 3 [pid 575] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 576 attached [pid 576] set_robust_list(0x555555cf9760, 24) = 0 [pid 576] chdir("./54") = 0 [pid 576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 576] setpgid(0, 0 [pid 573] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 576] <... setpgid resumed>) = 0 [pid 576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 574] <... bpf resumed>) = 6 [pid 576] write(3, "1000", 4) = 4 [pid 576] close(3) = 0 [pid 576] symlink("/dev/binderfs", "./binderfs") = 0 [pid 574] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 576] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 576] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 575] <... bpf resumed>) = 4 [pid 573] <... bpf resumed>) = 7 [pid 570] <... bpf resumed>) = 7 [pid 575] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 573] exit_group(0 [pid 570] exit_group(0 [pid 575] <... bpf resumed>) = 5 [pid 573] <... exit_group resumed>) = ? [pid 570] <... exit_group resumed>) = ? [pid 575] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [ 27.137373][ T569] RAX: 0000000000000006 RBX: 00000000000068ac RCX: 00007f5bb48efb19 [ 27.145192][ T569] RDX: 0000000000000090 RSI: 00000000200004c0 RDI: 0000000000000005 [ 27.153008][ T569] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc13478f1c [ 27.160808][ T569] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc13478f1c [ 27.168733][ T569] R13: 00007ffc13478f50 R14: 00007ffc13478f30 R15: 0000000000000035 [ 27.176549][ T569] [pid 575] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 575] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 574] <... bpf resumed>) = 7 [pid 576] <... bpf resumed>) = 4 [pid 570] +++ exited with 0 +++ [pid 576] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 574] exit_group(0 [pid 576] <... bpf resumed>) = 5 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=570, si_uid=0, si_status=0, si_utime=0, si_stime=22} --- [pid 574] <... exit_group resumed>) = ? [pid 576] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 576] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 576] <... bpf resumed>) = 6 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 576] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./55/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./55") = 0 [pid 295] mkdir("./56", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 577 attached , child_tidptr=0x555555cf9750) = 577 [pid 577] set_robust_list(0x555555cf9760, 24) = 0 [pid 577] chdir("./56") = 0 [pid 577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 577] setpgid(0, 0) = 0 [pid 577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 577] write(3, "1000", 4) = 4 [pid 577] close(3) = 0 [pid 577] symlink("/dev/binderfs", "./binderfs") = 0 [pid 577] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 575] <... bpf resumed>) = 7 [pid 573] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=573, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 575] exit_group(0) = ? [pid 296] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW [pid 577] <... bpf resumed>) = 3 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./52/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./52" [pid 577] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./53", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 578 attached [pid 578] set_robust_list(0x555555cf9760, 24 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 578 [pid 578] <... set_robust_list resumed>) = 0 [pid 578] chdir("./53") = 0 [pid 578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 578] setpgid(0, 0) = 0 [pid 578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 578] write(3, "1000", 4) = 4 [pid 578] close(3) = 0 [pid 578] symlink("/dev/binderfs", "./binderfs") = 0 [pid 578] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 578] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 576] <... bpf resumed>) = 7 [pid 574] +++ exited with 0 +++ [pid 576] exit_group(0) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./52/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./52") = 0 [pid 292] mkdir("./53", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 579 ./strace-static-x86_64: Process 579 attached [pid 579] set_robust_list(0x555555cf9760, 24) = 0 [pid 579] chdir("./53") = 0 [pid 579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 579] setpgid(0, 0) = 0 [pid 579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 579] write(3, "1000", 4) = 4 [pid 579] close(3) = 0 [pid 579] symlink("/dev/binderfs", "./binderfs") = 0 [pid 579] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 579] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 578] <... bpf resumed>) = 4 [pid 577] <... bpf resumed>) = 4 [pid 576] +++ exited with 0 +++ [pid 575] +++ exited with 0 +++ [pid 577] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 578] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 577] <... bpf resumed>) = 5 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=575, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=576, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 577] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 577] <... bpf resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 577] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 578] <... bpf resumed>) = 5 [pid 578] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 578] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 577] <... bpf resumed>) = 6 [pid 294] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 577] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 578] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 293] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 293] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./50/binderfs", [pid 293] newfstatat(AT_FDCWD, "./54/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./50/binderfs" [pid 293] unlink("./54/binderfs" [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 293] <... unlink resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] getdents64(3, [pid 294] close(3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... close resumed>) = 0 [pid 293] close(3 [pid 294] rmdir("./50" [pid 293] <... close resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 293] rmdir("./54" [pid 294] mkdir("./51", 0777 [pid 293] <... rmdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 293] mkdir("./55", 0777 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 580 ./strace-static-x86_64: Process 580 attached [pid 580] set_robust_list(0x555555cf9760, 24) = 0 [pid 580] chdir("./51") = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 581 [pid 580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 580] setpgid(0, 0) = 0 [pid 580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 579] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 580] <... openat resumed>) = 3 [pid 579] <... bpf resumed>) = 5 [pid 580] write(3, "1000", 4) = 4 [pid 580] close(3) = 0 [pid 580] symlink("/dev/binderfs", "./binderfs") = 0 [pid 579] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 580] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 579] <... bpf resumed>) = 0 [pid 579] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 580] <... bpf resumed>) = 3 [pid 579] <... bpf resumed>) = 6 [pid 580] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 579] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16./strace-static-x86_64: Process 581 attached [pid 581] set_robust_list(0x555555cf9760, 24) = 0 [pid 581] chdir("./55") = 0 [pid 581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 581] setpgid(0, 0) = 0 [pid 581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 581] write(3, "1000", 4) = 4 [pid 581] close(3) = 0 [pid 581] symlink("/dev/binderfs", "./binderfs") = 0 [pid 581] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 581] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 580] <... bpf resumed>) = 4 [pid 578] <... bpf resumed>) = 7 [pid 577] <... bpf resumed>) = 7 [pid 581] <... bpf resumed>) = 4 [pid 580] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 579] <... bpf resumed>) = 7 [pid 578] exit_group(0 [pid 580] <... bpf resumed>) = 5 [pid 578] <... exit_group resumed>) = ? [pid 577] exit_group(0 [pid 581] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 580] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 579] exit_group(0 [pid 578] +++ exited with 0 +++ [pid 577] <... exit_group resumed>) = ? [pid 580] <... bpf resumed>) = 0 [pid 580] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 581] <... bpf resumed>) = 5 [pid 580] <... bpf resumed>) = 6 [pid 579] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=578, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 580] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 581] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 581] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW [pid 581] <... bpf resumed>) = 6 [pid 581] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./53/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./53") = 0 [pid 296] mkdir("./54", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 582 ./strace-static-x86_64: Process 582 attached [pid 582] set_robust_list(0x555555cf9760, 24) = 0 [pid 582] chdir("./54") = 0 [pid 582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 582] setpgid(0, 0) = 0 [pid 582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 582] write(3, "1000", 4) = 4 [pid 582] close(3) = 0 [pid 582] symlink("/dev/binderfs", "./binderfs") = 0 [pid 582] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 582] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 577] +++ exited with 0 +++ [pid 580] <... bpf resumed>) = 7 [pid 580] exit_group(0) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=577, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./56/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./56") = 0 [pid 295] mkdir("./57", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 583 ./strace-static-x86_64: Process 583 attached [pid 583] set_robust_list(0x555555cf9760, 24) = 0 [pid 583] chdir("./57") = 0 [pid 583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 583] setpgid(0, 0) = 0 [pid 583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 583] write(3, "1000", 4) = 4 [pid 583] close(3) = 0 [pid 583] symlink("/dev/binderfs", "./binderfs") = 0 [pid 583] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 583] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 582] <... bpf resumed>) = 4 [pid 581] <... bpf resumed>) = 7 [pid 579] +++ exited with 0 +++ [pid 582] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 581] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=579, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 581] <... exit_group resumed>) = ? [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 582] <... bpf resumed>) = 5 [pid 292] <... restart_syscall resumed>) = 0 [pid 582] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 582] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./53/binderfs" [pid 582] <... bpf resumed>) = 6 [pid 582] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... unlink resumed>) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./53") = 0 [pid 292] mkdir("./54", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 584 ./strace-static-x86_64: Process 584 attached [pid 584] set_robust_list(0x555555cf9760, 24) = 0 [pid 584] chdir("./54") = 0 [pid 584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 584] setpgid(0, 0) = 0 [pid 584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 584] write(3, "1000", 4) = 4 [pid 584] close(3) = 0 [pid 584] symlink("/dev/binderfs", "./binderfs") = 0 [pid 584] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 584] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 583] <... bpf resumed>) = 4 [pid 581] +++ exited with 0 +++ [pid 583] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=581, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 583] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 583] <... bpf resumed>) = 0 [pid 583] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 583] <... bpf resumed>) = 6 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 583] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./55/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./55") = 0 [pid 293] mkdir("./56", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 585 ./strace-static-x86_64: Process 585 attached [pid 585] set_robust_list(0x555555cf9760, 24) = 0 [pid 585] chdir("./56") = 0 [pid 585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 585] setpgid(0, 0) = 0 [pid 585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 585] write(3, "1000", 4) = 4 [pid 585] close(3) = 0 [pid 585] symlink("/dev/binderfs", "./binderfs") = 0 [pid 585] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 585] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 584] <... bpf resumed>) = 4 [pid 583] <... bpf resumed>) = 7 [pid 582] <... bpf resumed>) = 7 [pid 580] +++ exited with 0 +++ [pid 583] exit_group(0) = ? [pid 585] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 584] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 582] exit_group(0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 582] <... exit_group resumed>) = ? [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 584] <... bpf resumed>) = 5 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 584] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 584] <... bpf resumed>) = 0 [pid 294] newfstatat(AT_FDCWD, "./51/binderfs", [pid 584] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./51/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./51") = 0 [pid 294] mkdir("./52", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 586 ./strace-static-x86_64: Process 586 attached [pid 586] set_robust_list(0x555555cf9760, 24) = 0 [pid 586] chdir("./52" [pid 584] <... bpf resumed>) = 6 [pid 586] <... chdir resumed>) = 0 [pid 584] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 586] setpgid(0, 0) = 0 [pid 586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 585] <... bpf resumed>) = 5 [pid 586] <... openat resumed>) = 3 [pid 585] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 586] write(3, "1000", 4 [pid 585] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 586] <... write resumed>) = 4 [pid 586] close(3 [pid 585] <... bpf resumed>) = 6 [pid 586] <... close resumed>) = 0 [pid 585] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 586] symlink("/dev/binderfs", "./binderfs") = 0 [pid 586] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 586] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 583] +++ exited with 0 +++ [pid 582] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=583, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=582, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] newfstatat(3, "", [pid 296] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] getdents64(3, [pid 296] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(AT_FDCWD, "./54/binderfs", [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] newfstatat(AT_FDCWD, "./57/binderfs", [pid 296] unlink("./54/binderfs" [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] unlink("./57/binderfs" [pid 296] getdents64(3, [pid 295] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 295] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./54" [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] close(3 [pid 296] mkdir("./55", 0777 [pid 295] <... close resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] rmdir("./57" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./58", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 587 ./strace-static-x86_64: Process 587 attached [pid 587] set_robust_list(0x555555cf9760, 24) = 0 [pid 587] chdir("./55" [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 587] <... chdir resumed>) = 0 [pid 587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 587] setpgid(0, 0) = 0 [pid 587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 588 [pid 587] <... openat resumed>) = 3 [pid 587] write(3, "1000", 4) = 4 [pid 587] close(3) = 0 [pid 587] symlink("/dev/binderfs", "./binderfs") = 0 [pid 587] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 ./strace-static-x86_64: Process 588 attached [pid 587] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 588] set_robust_list(0x555555cf9760, 24) = 0 [pid 588] chdir("./58") = 0 [pid 588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 588] setpgid(0, 0) = 0 [pid 588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 588] write(3, "1000", 4) = 4 [pid 588] close(3) = 0 [pid 588] symlink("/dev/binderfs", "./binderfs") = 0 [pid 588] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 588] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 584] <... bpf resumed>) = 7 [pid 587] <... bpf resumed>) = 4 [pid 586] <... bpf resumed>) = 4 [pid 585] <... bpf resumed>) = 7 [pid 584] exit_group(0 [pid 587] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 586] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 584] <... exit_group resumed>) = ? [pid 588] <... bpf resumed>) = 4 [pid 587] <... bpf resumed>) = 5 [pid 586] <... bpf resumed>) = 5 [pid 585] exit_group(0 [pid 588] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 587] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 586] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 585] <... exit_group resumed>) = ? [pid 588] <... bpf resumed>) = 5 [pid 587] <... bpf resumed>) = 0 [pid 586] <... bpf resumed>) = 0 [pid 586] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 588] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 587] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 586] <... bpf resumed>) = 6 [pid 588] <... bpf resumed>) = 0 [pid 586] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 588] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 587] <... bpf resumed>) = 6 [pid 587] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 588] <... bpf resumed>) = 6 [pid 588] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 584] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=584, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./54/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./54") = 0 [pid 292] mkdir("./55", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 589 ./strace-static-x86_64: Process 589 attached [pid 589] set_robust_list(0x555555cf9760, 24) = 0 [pid 589] chdir("./55") = 0 [pid 589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 589] setpgid(0, 0) = 0 [pid 589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 589] write(3, "1000", 4) = 4 [pid 589] close(3) = 0 [pid 589] symlink("/dev/binderfs", "./binderfs") = 0 [pid 589] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 589] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 587] <... bpf resumed>) = 7 [pid 586] <... bpf resumed>) = 7 [pid 589] <... bpf resumed>) = 4 [pid 588] <... bpf resumed>) = 7 [pid 585] +++ exited with 0 +++ [pid 587] exit_group(0 [pid 586] exit_group(0 [pid 587] <... exit_group resumed>) = ? [pid 586] <... exit_group resumed>) = ? [pid 589] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 588] exit_group(0 [pid 587] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 588] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=587, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 293] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 293] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] newfstatat(3, "", [pid 296] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] getdents64(3, [pid 296] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(AT_FDCWD, "./55/binderfs", [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] newfstatat(AT_FDCWD, "./56/binderfs", [pid 296] unlink("./55/binderfs" [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 293] unlink("./56/binderfs" [pid 296] getdents64(3, [pid 293] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] getdents64(3, [pid 296] close(3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... close resumed>) = 0 [pid 293] close(3 [pid 296] rmdir("./55" [pid 293] <... close resumed>) = 0 [pid 589] <... bpf resumed>) = 5 [pid 296] <... rmdir resumed>) = 0 [pid 293] rmdir("./56" [pid 589] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] mkdir("./56", 0777 [pid 293] <... rmdir resumed>) = 0 [pid 589] <... bpf resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 293] mkdir("./57", 0777 [pid 589] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 590 ./strace-static-x86_64: Process 590 attached [pid 590] set_robust_list(0x555555cf9760, 24) = 0 [pid 590] chdir("./56" [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 591 [pid 590] <... chdir resumed>) = 0 [pid 590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 590] setpgid(0, 0) = 0 [pid 590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 589] <... bpf resumed>) = 6 [pid 590] write(3, "1000", 4) = 4 [pid 590] close(3) = 0 [pid 590] symlink("/dev/binderfs", "./binderfs") = 0 [pid 589] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 590] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 591 attached ) = 3 [pid 591] set_robust_list(0x555555cf9760, 24) = 0 [pid 590] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 591] chdir("./57") = 0 [pid 591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 591] setpgid(0, 0) = 0 [pid 591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 591] write(3, "1000", 4) = 4 [pid 591] close(3) = 0 [pid 591] symlink("/dev/binderfs", "./binderfs") = 0 [pid 591] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 591] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 586] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./52/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./52") = 0 [pid 294] mkdir("./53", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 592 ./strace-static-x86_64: Process 592 attached [pid 592] set_robust_list(0x555555cf9760, 24) = 0 [pid 592] chdir("./53") = 0 [pid 592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 592] setpgid(0, 0) = 0 [pid 592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 592] write(3, "1000", 4) = 4 [pid 592] close(3) = 0 [pid 592] symlink("/dev/binderfs", "./binderfs") = 0 [pid 592] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 592] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 590] <... bpf resumed>) = 4 [pid 589] <... bpf resumed>) = 7 [pid 588] +++ exited with 0 +++ [pid 591] <... bpf resumed>) = 4 [pid 592] <... bpf resumed>) = 4 [pid 591] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 590] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 589] exit_group(0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 592] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 591] <... bpf resumed>) = 5 [pid 590] <... bpf resumed>) = 5 [pid 589] <... exit_group resumed>) = ? [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 592] <... bpf resumed>) = 5 [pid 591] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 590] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 589] +++ exited with 0 +++ [pid 295] <... restart_syscall resumed>) = 0 [pid 592] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 591] <... bpf resumed>) = 0 [pid 590] <... bpf resumed>) = 0 [pid 592] <... bpf resumed>) = 0 [pid 591] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 590] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 592] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 591] <... bpf resumed>) = 6 [pid 590] <... bpf resumed>) = 6 [pid 295] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=589, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 591] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 590] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 295] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] <... restart_syscall resumed>) = 0 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 592] <... bpf resumed>) = 6 [pid 295] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 592] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] newfstatat(AT_FDCWD, "./58/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./58/binderfs" [pid 292] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] <... openat resumed>) = 3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./58") = 0 [pid 292] newfstatat(3, "", [pid 295] mkdir("./59", 0777) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] getdents64(3, [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 593 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./55/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./55") = 0 [pid 292] mkdir("./56", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 594 ./strace-static-x86_64: Process 594 attached ./strace-static-x86_64: Process 593 attached [pid 594] set_robust_list(0x555555cf9760, 24) = 0 [pid 594] chdir("./56" [pid 593] set_robust_list(0x555555cf9760, 24 [pid 594] <... chdir resumed>) = 0 [pid 594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 594] setpgid(0, 0) = 0 [pid 594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 594] write(3, "1000", 4 [pid 593] <... set_robust_list resumed>) = 0 [pid 594] <... write resumed>) = 4 [pid 594] close(3) = 0 [pid 594] symlink("/dev/binderfs", "./binderfs") = 0 [pid 594] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 593] chdir("./59") = 0 [pid 593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 593] setpgid(0, 0) = 0 [pid 594] <... bpf resumed>) = 3 [pid 594] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 593] write(3, "1000", 4) = 4 [pid 593] close(3) = 0 [pid 593] symlink("/dev/binderfs", "./binderfs") = 0 [pid 593] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 593] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 591] <... bpf resumed>) = 7 [pid 590] <... bpf resumed>) = 7 [pid 592] <... bpf resumed>) = 7 [pid 591] exit_group(0 [pid 590] exit_group(0 [pid 592] exit_group(0 [pid 590] <... exit_group resumed>) = ? [pid 593] <... bpf resumed>) = 4 [pid 592] <... exit_group resumed>) = ? [pid 591] <... exit_group resumed>) = ? [pid 590] +++ exited with 0 +++ [pid 594] <... bpf resumed>) = 4 [pid 594] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 594] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 594] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=590, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 594] <... bpf resumed>) = 6 [pid 593] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 594] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 593] <... bpf resumed>) = 5 [pid 593] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 296] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./56/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./56") = 0 [pid 296] mkdir("./57", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 595 [pid 593] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 595 attached [pid 595] set_robust_list(0x555555cf9760, 24) = 0 [pid 595] chdir("./57") = 0 [pid 595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 595] setpgid(0, 0) = 0 [pid 595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 593] <... bpf resumed>) = 6 [pid 595] <... openat resumed>) = 3 [pid 595] write(3, "1000", 4) = 4 [pid 595] close(3) = 0 [pid 595] symlink("/dev/binderfs", "./binderfs" [pid 593] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 595] <... symlink resumed>) = 0 [pid 595] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 595] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 592] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=592, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./53/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./53") = 0 [pid 294] mkdir("./54", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 596 ./strace-static-x86_64: Process 596 attached [pid 596] set_robust_list(0x555555cf9760, 24) = 0 [pid 596] chdir("./54") = 0 [pid 596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 596] setpgid(0, 0) = 0 [pid 596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 596] write(3, "1000", 4) = 4 [pid 596] close(3) = 0 [pid 596] symlink("/dev/binderfs", "./binderfs") = 0 [pid 596] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 596] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 594] <... bpf resumed>) = 7 [pid 593] <... bpf resumed>) = 7 [pid 596] <... bpf resumed>) = 4 [pid 595] <... bpf resumed>) = 4 [pid 594] exit_group(0 [pid 593] exit_group(0 [pid 591] +++ exited with 0 +++ [pid 596] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 595] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 594] <... exit_group resumed>) = ? [pid 593] <... exit_group resumed>) = ? [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=591, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 596] <... bpf resumed>) = 5 [pid 595] <... bpf resumed>) = 5 [pid 595] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 596] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 595] <... bpf resumed>) = 0 [pid 596] <... bpf resumed>) = 0 [pid 595] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 596] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 595] <... bpf resumed>) = 6 [pid 595] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 596] <... bpf resumed>) = 6 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 596] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./57/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./57") = 0 [pid 293] mkdir("./58", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 597 ./strace-static-x86_64: Process 597 attached [pid 597] set_robust_list(0x555555cf9760, 24) = 0 [pid 597] chdir("./58") = 0 [pid 597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 597] setpgid(0, 0) = 0 [pid 597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 597] write(3, "1000", 4) = 4 [pid 597] close(3) = 0 [pid 597] symlink("/dev/binderfs", "./binderfs") = 0 [pid 597] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 597] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 594] +++ exited with 0 +++ [pid 593] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=593, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=594, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 292] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./59/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./56/binderfs", [pid 295] unlink("./59/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... unlink resumed>) = 0 [pid 292] unlink("./56/binderfs" [pid 295] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 292] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] rmdir("./59" [pid 292] close(3 [pid 295] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 295] mkdir("./60", 0777 [pid 292] rmdir("./56" [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 598 [pid 292] mkdir("./57", 0777./strace-static-x86_64: Process 598 attached [pid 598] set_robust_list(0x555555cf9760, 24) = 0 [pid 598] chdir("./60") = 0 [pid 598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 598] setpgid(0, 0) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 598] write(3, "1000", 4) = 4 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 599 [pid 598] close(3) = 0 [pid 598] symlink("/dev/binderfs", "./binderfs") = 0 [pid 598] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 598] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 599 attached [pid 599] set_robust_list(0x555555cf9760, 24) = 0 [pid 599] chdir("./57") = 0 [pid 599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 599] setpgid(0, 0) = 0 [pid 599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 599] write(3, "1000", 4) = 4 [pid 599] close(3) = 0 [pid 599] symlink("/dev/binderfs", "./binderfs") = 0 [pid 599] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 599] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 596] <... bpf resumed>) = 7 [pid 595] <... bpf resumed>) = 7 [pid 597] <... bpf resumed>) = 4 [pid 599] <... bpf resumed>) = 4 [pid 598] <... bpf resumed>) = 4 [pid 597] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 596] exit_group(0 [pid 595] exit_group(0 [pid 599] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 598] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 597] <... bpf resumed>) = 5 [pid 596] <... exit_group resumed>) = ? [pid 595] <... exit_group resumed>) = ? [pid 599] <... bpf resumed>) = 5 [pid 598] <... bpf resumed>) = 5 [pid 597] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 599] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 598] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 597] <... bpf resumed>) = 0 [pid 598] <... bpf resumed>) = 0 [pid 597] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 599] <... bpf resumed>) = 0 [pid 598] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 597] <... bpf resumed>) = 6 [pid 597] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 599] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 598] <... bpf resumed>) = 6 [pid 598] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 599] <... bpf resumed>) = 6 [pid 599] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 596] +++ exited with 0 +++ [pid 595] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 296] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] newfstatat(3, "", [pid 296] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] newfstatat(3, "", [pid 294] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./54/binderfs", [pid 296] newfstatat(AT_FDCWD, "./57/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./54/binderfs" [pid 296] unlink("./57/binderfs" [pid 294] <... unlink resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 294] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 294] close(3 [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./57" [pid 294] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 294] rmdir("./54" [pid 296] mkdir("./58", 0777 [pid 294] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] mkdir("./55", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 600 ./strace-static-x86_64: Process 600 attached [pid 600] set_robust_list(0x555555cf9760, 24) = 0 [pid 600] chdir("./58") = 0 [pid 600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 600] setpgid(0, 0) = 0 [pid 600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 601 [pid 600] <... openat resumed>) = 3 [pid 600] write(3, "1000", 4) = 4 [pid 600] close(3) = 0 [pid 600] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 601 attached ) = 0 [pid 600] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 601] set_robust_list(0x555555cf9760, 24) = 0 [pid 600] <... bpf resumed>) = 3 [pid 600] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 601] chdir("./55") = 0 [pid 601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 601] setpgid(0, 0) = 0 [pid 601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 601] write(3, "1000", 4) = 4 [pid 601] close(3) = 0 [pid 601] symlink("/dev/binderfs", "./binderfs") = 0 [pid 601] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 601] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 597] <... bpf resumed>) = 7 [pid 601] <... bpf resumed>) = 4 [pid 600] <... bpf resumed>) = 4 [pid 599] <... bpf resumed>) = 7 [pid 598] <... bpf resumed>) = 7 [pid 597] exit_group(0 [pid 601] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 600] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 599] exit_group(0 [pid 598] exit_group(0 [pid 597] <... exit_group resumed>) = ? [pid 601] <... bpf resumed>) = 5 [pid 600] <... bpf resumed>) = 5 [pid 599] <... exit_group resumed>) = ? [pid 598] <... exit_group resumed>) = ? [pid 597] +++ exited with 0 +++ [pid 601] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 600] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=597, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 600] <... bpf resumed>) = 0 [pid 601] <... bpf resumed>) = 0 [pid 600] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 601] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", [pid 600] <... bpf resumed>) = 6 [pid 601] <... bpf resumed>) = 6 [pid 600] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 601] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./58/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./58") = 0 [pid 293] mkdir("./59", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 602 attached [pid 602] set_robust_list(0x555555cf9760, 24 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 602 [pid 602] <... set_robust_list resumed>) = 0 [pid 602] chdir("./59") = 0 [pid 602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 602] setpgid(0, 0) = 0 [pid 602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 602] write(3, "1000", 4) = 4 [pid 599] +++ exited with 0 +++ [pid 602] close(3) = 0 [pid 598] +++ exited with 0 +++ [pid 602] symlink("/dev/binderfs", "./binderfs") = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=598, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=599, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 602] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 295] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 602] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 295] <... openat resumed>) = 3 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(3, "", [pid 292] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... openat resumed>) = 3 [pid 295] getdents64(3, [pid 292] newfstatat(3, "", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] getdents64(3, [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./60/binderfs", [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] unlink("./60/binderfs" [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 292] newfstatat(AT_FDCWD, "./57/binderfs", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... close resumed>) = 0 [pid 292] unlink("./57/binderfs" [pid 295] rmdir("./60") = 0 [pid 292] <... unlink resumed>) = 0 [pid 295] mkdir("./61", 0777) = 0 [pid 292] getdents64(3, [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 603 attached [pid 292] close(3 [pid 603] set_robust_list(0x555555cf9760, 24 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 603 [pid 603] <... set_robust_list resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./57" [pid 603] chdir("./61") = 0 [pid 292] <... rmdir resumed>) = 0 [pid 603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 292] mkdir("./58", 0777 [pid 603] <... prctl resumed>) = 0 [pid 603] setpgid(0, 0) = 0 [pid 603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 292] <... mkdir resumed>) = 0 [pid 603] write(3, "1000", 4 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 603] <... write resumed>) = 4 [pid 603] close(3) = 0 [pid 603] symlink("/dev/binderfs", "./binderfs") = 0 [pid 603] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 604 [pid 603] <... bpf resumed>) = 3 [pid 603] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 604 attached [pid 604] set_robust_list(0x555555cf9760, 24) = 0 [pid 604] chdir("./58") = 0 [pid 604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 604] setpgid(0, 0) = 0 [pid 604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 604] write(3, "1000", 4) = 4 [pid 604] close(3) = 0 [pid 604] symlink("/dev/binderfs", "./binderfs") = 0 [pid 604] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 604] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 600] <... bpf resumed>) = 7 [pid 604] <... bpf resumed>) = 4 [pid 603] <... bpf resumed>) = 4 [pid 602] <... bpf resumed>) = 4 [pid 601] <... bpf resumed>) = 7 [pid 600] exit_group(0 [pid 602] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 600] <... exit_group resumed>) = ? [pid 604] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 603] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 602] <... bpf resumed>) = 5 [pid 601] exit_group(0 [pid 604] <... bpf resumed>) = 5 [pid 603] <... bpf resumed>) = 5 [pid 602] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 601] <... exit_group resumed>) = ? [pid 604] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 603] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 602] <... bpf resumed>) = 0 [pid 602] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 604] <... bpf resumed>) = 0 [pid 603] <... bpf resumed>) = 0 [pid 604] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 603] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 602] <... bpf resumed>) = 6 [pid 604] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 602] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 603] <... bpf resumed>) = 6 [pid 603] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 601] +++ exited with 0 +++ [pid 600] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 296] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 294] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 294] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 294] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./58/binderfs", [pid 294] newfstatat(AT_FDCWD, "./55/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./58/binderfs" [pid 294] unlink("./55/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 294] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 296] close(3 [pid 294] <... close resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 294] rmdir("./55" [pid 296] rmdir("./58" [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./56", 0777 [pid 296] <... rmdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 296] mkdir("./59", 0777 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 605 ./strace-static-x86_64: Process 605 attached [pid 605] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 606 [pid 605] chdir("./56"./strace-static-x86_64: Process 606 attached [pid 606] set_robust_list(0x555555cf9760, 24 [pid 605] <... chdir resumed>) = 0 [pid 606] <... set_robust_list resumed>) = 0 [pid 605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 605] setpgid(0, 0) = 0 [pid 605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 606] chdir("./59") = 0 [pid 606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 605] <... openat resumed>) = 3 [pid 605] write(3, "1000", 4) = 4 [pid 605] close(3) = 0 [pid 605] symlink("/dev/binderfs", "./binderfs" [pid 606] <... prctl resumed>) = 0 [pid 606] setpgid(0, 0) = 0 [pid 606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 605] <... symlink resumed>) = 0 [pid 605] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 606] <... openat resumed>) = 3 [pid 606] write(3, "1000", 4) = 4 [pid 606] close(3) = 0 [pid 606] symlink("/dev/binderfs", "./binderfs") = 0 [pid 606] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 605] <... bpf resumed>) = 3 [pid 605] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 606] <... bpf resumed>) = 3 [pid 606] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 604] <... bpf resumed>) = 7 [pid 602] <... bpf resumed>) = 7 [pid 604] exit_group(0 [pid 603] <... bpf resumed>) = 7 [pid 604] <... exit_group resumed>) = ? [pid 604] +++ exited with 0 +++ [pid 603] exit_group(0 [pid 602] exit_group(0 [pid 603] <... exit_group resumed>) = ? [pid 602] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 605] <... bpf resumed>) = 4 [pid 605] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 605] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 605] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 603] +++ exited with 0 +++ [pid 605] <... bpf resumed>) = 6 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 605] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./58/binderfs") = 0 [pid 295] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] getdents64(3, [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] close(3 [pid 295] <... openat resumed>) = 3 [pid 292] <... close resumed>) = 0 [pid 295] newfstatat(3, "", [pid 292] rmdir("./58" [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 295] getdents64(3, [pid 292] mkdir("./59", 0777 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... mkdir resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./61/binderfs", [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./61/binderfs" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 607 ./strace-static-x86_64: Process 607 attached [pid 607] set_robust_list(0x555555cf9760, 24 [pid 295] <... unlink resumed>) = 0 [pid 607] <... set_robust_list resumed>) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./61" [pid 607] chdir("./59") = 0 [pid 295] <... rmdir resumed>) = 0 [pid 607] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 295] mkdir("./62", 0777 [pid 607] <... prctl resumed>) = 0 [pid 607] setpgid(0, 0) = 0 [pid 607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 607] write(3, "1000", 4) = 4 [pid 607] close(3) = 0 [pid 607] symlink("/dev/binderfs", "./binderfs") = 0 [pid 607] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 608 [pid 607] <... bpf resumed>) = 3 [pid 607] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 608 attached [pid 608] set_robust_list(0x555555cf9760, 24) = 0 [pid 608] chdir("./62") = 0 [pid 608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 608] setpgid(0, 0) = 0 [pid 608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 608] write(3, "1000", 4) = 4 [pid 608] close(3) = 0 [pid 608] symlink("/dev/binderfs", "./binderfs") = 0 [pid 608] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 608] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 602] +++ exited with 0 +++ [pid 605] <... bpf resumed>) = 7 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=602, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 607] <... bpf resumed>) = 4 [pid 606] <... bpf resumed>) = 4 [pid 605] exit_group(0) = ? [pid 606] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 607] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 605] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=605, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 606] <... bpf resumed>) = 5 [pid 606] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 607] <... bpf resumed>) = 5 [pid 606] <... bpf resumed>) = 0 [pid 607] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 606] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 608] <... bpf resumed>) = 4 [pid 607] <... bpf resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 293] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 294] umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] getdents64(3, [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 607] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 608] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 606] <... bpf resumed>) = 6 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 606] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] newfstatat(AT_FDCWD, "./56/binderfs", [pid 293] newfstatat(AT_FDCWD, "./59/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./56/binderfs" [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 608] <... bpf resumed>) = 5 [pid 607] <... bpf resumed>) = 6 [pid 294] <... unlink resumed>) = 0 [pid 293] unlink("./59/binderfs" [pid 608] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 607] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 293] <... unlink resumed>) = 0 [pid 608] <... bpf resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 293] getdents64(3, [pid 294] rmdir("./56" [pid 608] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... rmdir resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] mkdir("./57", 0777 [pid 293] close(3 [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... close resumed>) = 0 [pid 608] <... bpf resumed>) = 6 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 609 [pid 608] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] rmdir("./59") = 0 [pid 293] mkdir("./60", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 610 attached , child_tidptr=0x555555cf9750) = 610 [pid 610] set_robust_list(0x555555cf9760, 24./strace-static-x86_64: Process 609 attached ) = 0 [pid 609] set_robust_list(0x555555cf9760, 24 [pid 610] chdir("./60") = 0 [pid 610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 610] setpgid(0, 0) = 0 [pid 610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 609] <... set_robust_list resumed>) = 0 [pid 610] write(3, "1000", 4) = 4 [pid 610] close(3) = 0 [pid 610] symlink("/dev/binderfs", "./binderfs") = 0 [pid 610] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 609] chdir("./57") = 0 [pid 609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 609] setpgid(0, 0) = 0 [pid 610] <... bpf resumed>) = 3 [pid 610] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 609] write(3, "1000", 4) = 4 [pid 609] close(3) = 0 [pid 609] symlink("/dev/binderfs", "./binderfs") = 0 [pid 609] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 609] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 607] <... bpf resumed>) = 7 [pid 606] <... bpf resumed>) = 7 [pid 610] <... bpf resumed>) = 4 [pid 608] <... bpf resumed>) = 7 [pid 607] exit_group(0 [pid 610] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 607] <... exit_group resumed>) = ? [pid 606] exit_group(0 [pid 610] <... bpf resumed>) = 5 [pid 609] <... bpf resumed>) = 4 [pid 608] exit_group(0 [pid 607] +++ exited with 0 +++ [pid 606] <... exit_group resumed>) = ? [pid 608] <... exit_group resumed>) = ? [pid 610] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 610] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=607, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 610] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./59/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./59") = 0 [pid 292] mkdir("./60", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 611 ./strace-static-x86_64: Process 611 attached [pid 611] set_robust_list(0x555555cf9760, 24) = 0 [pid 611] chdir("./60") = 0 [pid 611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 611] setpgid(0, 0 [pid 609] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 611] <... setpgid resumed>) = 0 [pid 609] <... bpf resumed>) = 5 [pid 611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 609] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 609] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 611] <... openat resumed>) = 3 [pid 611] write(3, "1000", 4 [pid 609] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 611] <... write resumed>) = 4 [pid 611] close(3) = 0 [pid 611] symlink("/dev/binderfs", "./binderfs") = 0 [pid 611] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 611] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 608] +++ exited with 0 +++ [pid 606] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=608, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 296] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 296] unlink("./59/binderfs" [pid 295] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... unlink resumed>) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] getdents64(3, [pid 295] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... openat resumed>) = 3 [pid 296] close(3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] rmdir("./59" [pid 295] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./62/binderfs" [pid 296] <... rmdir resumed>) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] mkdir("./60", 0777 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./62" [pid 296] <... mkdir resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] mkdir("./63", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 613 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 612 ./strace-static-x86_64: Process 612 attached ./strace-static-x86_64: Process 613 attached [pid 612] set_robust_list(0x555555cf9760, 24 [pid 613] set_robust_list(0x555555cf9760, 24) = 0 [pid 612] <... set_robust_list resumed>) = 0 [pid 612] chdir("./60" [pid 613] chdir("./63" [pid 612] <... chdir resumed>) = 0 [pid 613] <... chdir resumed>) = 0 [pid 612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 612] <... prctl resumed>) = 0 [pid 613] <... prctl resumed>) = 0 [pid 612] setpgid(0, 0 [pid 613] setpgid(0, 0 [pid 612] <... setpgid resumed>) = 0 [pid 613] <... setpgid resumed>) = 0 [pid 612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 613] write(3, "1000", 4 [pid 612] <... openat resumed>) = 3 [pid 613] <... write resumed>) = 4 [pid 612] write(3, "1000", 4 [pid 613] close(3 [pid 612] <... write resumed>) = 4 [pid 612] close(3 [pid 613] <... close resumed>) = 0 [pid 612] <... close resumed>) = 0 [pid 613] symlink("/dev/binderfs", "./binderfs" [pid 612] symlink("/dev/binderfs", "./binderfs") = 0 [pid 613] <... symlink resumed>) = 0 [pid 613] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 612] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 613] <... bpf resumed>) = 3 [pid 612] <... bpf resumed>) = 3 [pid 613] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 612] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 610] <... bpf resumed>) = 7 [pid 613] <... bpf resumed>) = 4 [pid 612] <... bpf resumed>) = 4 [pid 611] <... bpf resumed>) = 4 [pid 610] exit_group(0 [pid 609] <... bpf resumed>) = 7 [pid 613] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 612] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 611] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 610] <... exit_group resumed>) = ? [pid 609] exit_group(0 [pid 613] <... bpf resumed>) = 5 [pid 611] <... bpf resumed>) = 5 [pid 609] <... exit_group resumed>) = ? [pid 613] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 613] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 611] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 613] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 612] <... bpf resumed>) = 5 [pid 611] <... bpf resumed>) = 0 [pid 612] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 611] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 612] <... bpf resumed>) = 0 [pid 611] <... bpf resumed>) = 6 [pid 611] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 612] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 612] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 610] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./60/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./60") = 0 [pid 293] mkdir("./61", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 614 ./strace-static-x86_64: Process 614 attached [pid 614] set_robust_list(0x555555cf9760, 24) = 0 [pid 614] chdir("./61") = 0 [pid 614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 614] setpgid(0, 0) = 0 [pid 614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 614] write(3, "1000", 4) = 4 [pid 614] close(3) = 0 [pid 614] symlink("/dev/binderfs", "./binderfs") = 0 [pid 614] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 614] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 613] <... bpf resumed>) = 7 [pid 611] <... bpf resumed>) = 7 [pid 614] <... bpf resumed>) = 4 [pid 612] <... bpf resumed>) = 7 [pid 609] +++ exited with 0 +++ [pid 613] exit_group(0 [pid 611] exit_group(0 [pid 613] <... exit_group resumed>) = ? [pid 612] exit_group(0 [pid 611] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 614] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 612] <... exit_group resumed>) = ? [pid 294] umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./57/binderfs" [pid 614] <... bpf resumed>) = 5 [pid 294] <... unlink resumed>) = 0 [pid 614] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 614] <... bpf resumed>) = 0 [pid 294] close(3 [pid 614] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... close resumed>) = 0 [pid 294] rmdir("./57") = 0 [pid 294] mkdir("./58", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 615 attached , child_tidptr=0x555555cf9750) = 615 [pid 615] set_robust_list(0x555555cf9760, 24) = 0 [pid 615] chdir("./58" [pid 614] <... bpf resumed>) = 6 [pid 615] <... chdir resumed>) = 0 [pid 615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 614] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 615] <... prctl resumed>) = 0 [pid 615] setpgid(0, 0) = 0 [pid 615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 615] write(3, "1000", 4) = 4 [pid 615] close(3) = 0 [pid 615] symlink("/dev/binderfs", "./binderfs") = 0 [pid 615] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 615] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 613] +++ exited with 0 +++ [pid 611] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 295] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 295] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 295] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 295] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(AT_FDCWD, "./63/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./60/binderfs", [pid 295] unlink("./63/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... unlink resumed>) = 0 [pid 292] unlink("./60/binderfs" [pid 295] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 295] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... close resumed>) = 0 [pid 292] close(3 [pid 295] rmdir("./63" [pid 292] <... close resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 292] rmdir("./60" [pid 295] mkdir("./64", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 292] mkdir("./61", 0777 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 616 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 616 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 617 ./strace-static-x86_64: Process 617 attached [pid 616] set_robust_list(0x555555cf9760, 24 [pid 617] set_robust_list(0x555555cf9760, 24 [pid 616] <... set_robust_list resumed>) = 0 [pid 617] <... set_robust_list resumed>) = 0 [pid 617] chdir("./61") = 0 [pid 616] chdir("./64" [pid 617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 617] setpgid(0, 0) = 0 [pid 616] <... chdir resumed>) = 0 [pid 617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 616] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 617] <... openat resumed>) = 3 [pid 616] <... prctl resumed>) = 0 [pid 617] write(3, "1000", 4) = 4 [pid 616] setpgid(0, 0 [pid 617] close(3 [pid 616] <... setpgid resumed>) = 0 [pid 617] <... close resumed>) = 0 [pid 616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 617] symlink("/dev/binderfs", "./binderfs") = 0 [pid 616] <... openat resumed>) = 3 [pid 617] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 616] write(3, "1000", 4 [pid 617] <... bpf resumed>) = 3 [pid 616] <... write resumed>) = 4 [pid 617] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 616] close(3) = 0 [pid 616] symlink("/dev/binderfs", "./binderfs") = 0 [pid 616] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 616] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 614] <... bpf resumed>) = 7 [pid 612] +++ exited with 0 +++ [pid 617] <... bpf resumed>) = 4 [pid 616] <... bpf resumed>) = 4 [pid 615] <... bpf resumed>) = 4 [pid 614] exit_group(0 [pid 617] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 616] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 615] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 614] <... exit_group resumed>) = ? [pid 617] <... bpf resumed>) = 5 [pid 616] <... bpf resumed>) = 5 [pid 615] <... bpf resumed>) = 5 [pid 614] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=612, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 617] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 616] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 615] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 617] <... bpf resumed>) = 0 [pid 616] <... bpf resumed>) = 0 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 615] <... bpf resumed>) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=614, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 617] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 616] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 615] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... restart_syscall resumed>) = 0 [pid 617] <... bpf resumed>) = 6 [pid 616] <... bpf resumed>) = 6 [pid 617] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 616] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 615] <... bpf resumed>) = 6 [pid 615] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 293] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./60/binderfs", [pid 293] newfstatat(AT_FDCWD, "./61/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./60/binderfs" [pid 293] unlink("./61/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 293] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] getdents64(3, [pid 296] close(3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... close resumed>) = 0 [pid 293] close(3 [pid 296] rmdir("./60" [pid 293] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./61", 0777 [pid 293] rmdir("./61" [pid 296] <... mkdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] mkdir("./62", 0777./strace-static-x86_64: Process 618 attached ) = 0 [pid 618] set_robust_list(0x555555cf9760, 24 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 618 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 619 attached [pid 618] <... set_robust_list resumed>) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 619 [pid 618] chdir("./61") = 0 [pid 619] set_robust_list(0x555555cf9760, 24) = 0 [pid 619] chdir("./62" [pid 618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 619] <... chdir resumed>) = 0 [pid 619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 619] setpgid(0, 0) = 0 [pid 619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 618] <... prctl resumed>) = 0 [pid 618] setpgid(0, 0 [pid 619] <... openat resumed>) = 3 [pid 618] <... setpgid resumed>) = 0 [pid 619] write(3, "1000", 4 [pid 618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 619] <... write resumed>) = 4 [pid 619] close(3 [pid 618] <... openat resumed>) = 3 [pid 619] <... close resumed>) = 0 [pid 619] symlink("/dev/binderfs", "./binderfs") = 0 [pid 618] write(3, "1000", 4 [pid 619] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 618] <... write resumed>) = 4 [pid 619] <... bpf resumed>) = 3 [pid 618] close(3) = 0 [pid 618] symlink("/dev/binderfs", "./binderfs" [pid 619] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 618] <... symlink resumed>) = 0 [pid 618] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 618] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 617] <... bpf resumed>) = 7 [pid 619] <... bpf resumed>) = 4 [pid 618] <... bpf resumed>) = 4 [pid 617] exit_group(0 [pid 616] <... bpf resumed>) = 7 [pid 615] <... bpf resumed>) = 7 [pid 619] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 618] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 617] <... exit_group resumed>) = ? [pid 616] exit_group(0 [pid 619] <... bpf resumed>) = 5 [pid 618] <... bpf resumed>) = 5 [pid 617] +++ exited with 0 +++ [pid 615] exit_group(0 [pid 616] <... exit_group resumed>) = ? [pid 619] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 618] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 615] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 619] <... bpf resumed>) = 0 [pid 618] <... bpf resumed>) = 0 [pid 292] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 619] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 618] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./61/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./61") = 0 [pid 292] mkdir("./62", 0777 [pid 619] <... bpf resumed>) = 6 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 619] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 618] <... bpf resumed>) = 6 ./strace-static-x86_64: Process 620 attached [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 620 [pid 620] set_robust_list(0x555555cf9760, 24) = 0 [pid 618] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 620] chdir("./62") = 0 [pid 620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 620] setpgid(0, 0) = 0 [pid 620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 620] write(3, "1000", 4) = 4 [pid 620] close(3) = 0 [pid 620] symlink("/dev/binderfs", "./binderfs") = 0 [pid 620] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 620] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 616] +++ exited with 0 +++ [pid 615] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=615, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 295] <... restart_syscall resumed>) = 0 [pid 294] <... restart_syscall resumed>) = 0 [pid 295] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 295] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 295] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(AT_FDCWD, "./64/binderfs", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] newfstatat(AT_FDCWD, "./58/binderfs", [pid 295] unlink("./64/binderfs" [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... unlink resumed>) = 0 [pid 294] unlink("./58/binderfs" [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... unlink resumed>) = 0 [pid 295] close(3 [pid 294] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] rmdir("./64" [pid 294] close(3 [pid 295] <... rmdir resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 295] mkdir("./65", 0777 [pid 294] rmdir("./58" [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./59", 0777 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 621 ./strace-static-x86_64: Process 621 attached [pid 621] set_robust_list(0x555555cf9760, 24 [pid 294] <... mkdir resumed>) = 0 [pid 621] <... set_robust_list resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 621] chdir("./65") = 0 [pid 621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 622 [pid 621] <... prctl resumed>) = 0 [pid 621] setpgid(0, 0) = 0 [pid 621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 621] write(3, "1000", 4) = 4 [pid 621] close(3) = 0 ./strace-static-x86_64: Process 622 attached [pid 621] symlink("/dev/binderfs", "./binderfs" [pid 622] set_robust_list(0x555555cf9760, 24) = 0 [pid 622] chdir("./59") = 0 [pid 622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 622] setpgid(0, 0) = 0 [pid 622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 622] write(3, "1000", 4) = 4 [pid 622] close(3 [pid 621] <... symlink resumed>) = 0 [pid 622] <... close resumed>) = 0 [pid 622] symlink("/dev/binderfs", "./binderfs" [pid 621] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 622] <... symlink resumed>) = 0 [pid 622] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 621] <... bpf resumed>) = 3 [pid 622] <... bpf resumed>) = 3 [pid 621] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 622] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 619] <... bpf resumed>) = 7 [pid 618] <... bpf resumed>) = 7 [pid 619] exit_group(0 [pid 618] exit_group(0 [pid 620] <... bpf resumed>) = 4 [pid 619] <... exit_group resumed>) = ? [pid 618] <... exit_group resumed>) = ? [pid 620] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 620] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 620] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 620] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 622] <... bpf resumed>) = 4 [pid 621] <... bpf resumed>) = 4 [pid 619] +++ exited with 0 +++ [pid 622] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 621] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 622] <... bpf resumed>) = 5 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=619, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 622] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 621] <... bpf resumed>) = 5 [pid 622] <... bpf resumed>) = 0 [pid 621] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 622] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 621] <... bpf resumed>) = 0 [pid 293] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 622] <... bpf resumed>) = 6 [pid 621] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 622] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./62/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./62") = 0 [pid 621] <... bpf resumed>) = 6 [pid 293] mkdir("./63", 0777 [pid 621] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 623 attached , child_tidptr=0x555555cf9750) = 623 [pid 623] set_robust_list(0x555555cf9760, 24) = 0 [pid 623] chdir("./63") = 0 [pid 623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 623] setpgid(0, 0) = 0 [pid 623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 623] write(3, "1000", 4) = 4 [pid 623] close(3) = 0 [pid 623] symlink("/dev/binderfs", "./binderfs") = 0 [pid 623] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 623] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 622] <... bpf resumed>) = 7 [pid 621] <... bpf resumed>) = 7 [pid 620] <... bpf resumed>) = 7 [pid 618] +++ exited with 0 +++ [pid 622] exit_group(0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=618, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 620] exit_group(0 [pid 622] <... exit_group resumed>) = ? [pid 620] <... exit_group resumed>) = ? [pid 623] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 620] +++ exited with 0 +++ [pid 296] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW [pid 623] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 623] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 623] <... bpf resumed>) = 6 [pid 621] exit_group(0 [pid 296] <... openat resumed>) = 3 [pid 623] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 621] <... exit_group resumed>) = ? [pid 292] <... restart_syscall resumed>) = 0 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 292] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... openat resumed>) = 3 [pid 296] newfstatat(AT_FDCWD, "./61/binderfs", [pid 292] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] unlink("./61/binderfs" [pid 292] getdents64(3, [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... close resumed>) = 0 [pid 292] newfstatat(AT_FDCWD, "./62/binderfs", [pid 296] rmdir("./61" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 292] unlink("./62/binderfs" [pid 296] mkdir("./62", 0777) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] getdents64(3, [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 624 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./62"./strace-static-x86_64: Process 624 attached [pid 624] set_robust_list(0x555555cf9760, 24) = 0 [pid 624] chdir("./62" [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./63", 0777 [pid 624] <... chdir resumed>) = 0 [pid 624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 624] setpgid(0, 0) = 0 [pid 624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 624] <... openat resumed>) = 3 [pid 624] write(3, "1000", 4) = 4 [pid 624] close(3 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 625 [pid 624] <... close resumed>) = 0 [pid 624] symlink("/dev/binderfs", "./binderfs") = 0 [pid 624] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 624] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 625 attached [pid 625] set_robust_list(0x555555cf9760, 24) = 0 [pid 625] chdir("./63") = 0 [pid 625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 625] setpgid(0, 0) = 0 [pid 625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 625] write(3, "1000", 4) = 4 [pid 625] close(3) = 0 [pid 625] symlink("/dev/binderfs", "./binderfs") = 0 [pid 625] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 625] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 622] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./59/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./59") = 0 [pid 294] mkdir("./60", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 626 attached , child_tidptr=0x555555cf9750) = 626 [pid 626] set_robust_list(0x555555cf9760, 24) = 0 [pid 626] chdir("./60") = 0 [pid 626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 626] setpgid(0, 0) = 0 [pid 626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 626] write(3, "1000", 4) = 4 [pid 626] close(3) = 0 [pid 626] symlink("/dev/binderfs", "./binderfs") = 0 [pid 626] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 626] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 625] <... bpf resumed>) = 4 [pid 624] <... bpf resumed>) = 4 [pid 623] <... bpf resumed>) = 7 [pid 626] <... bpf resumed>) = 4 [pid 621] +++ exited with 0 +++ [pid 625] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 624] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 623] exit_group(0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=621, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 626] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 625] <... bpf resumed>) = 5 [pid 624] <... bpf resumed>) = 5 [pid 623] <... exit_group resumed>) = ? [pid 626] <... bpf resumed>) = 5 [pid 625] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 624] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 623] +++ exited with 0 +++ [pid 626] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 625] <... bpf resumed>) = 0 [pid 624] <... bpf resumed>) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=623, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 626] <... bpf resumed>) = 0 [pid 625] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 624] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 626] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 625] <... bpf resumed>) = 6 [pid 293] <... restart_syscall resumed>) = 0 [pid 625] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 624] <... bpf resumed>) = 6 [pid 624] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 626] <... bpf resumed>) = 6 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 626] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 293] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 293] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./65/binderfs", [pid 293] newfstatat(AT_FDCWD, "./63/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./65/binderfs" [pid 293] unlink("./63/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 293] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 293] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 293] close(3 [pid 295] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 295] rmdir("./65" [pid 293] rmdir("./63" [pid 295] <... rmdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 295] mkdir("./66", 0777 [pid 293] mkdir("./64", 0777 [pid 295] <... mkdir resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 627 attached [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 627 ./strace-static-x86_64: Process 628 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 628 [pid 628] set_robust_list(0x555555cf9760, 24) = 0 [pid 628] chdir("./66") = 0 [pid 628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 628] setpgid(0, 0) = 0 [pid 628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 627] set_robust_list(0x555555cf9760, 24 [pid 628] <... openat resumed>) = 3 [pid 627] <... set_robust_list resumed>) = 0 [pid 628] write(3, "1000", 4) = 4 [pid 628] close(3) = 0 [pid 628] symlink("/dev/binderfs", "./binderfs") = 0 [pid 627] chdir("./64") = 0 [pid 628] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 628] <... bpf resumed>) = 3 [pid 627] <... prctl resumed>) = 0 [pid 628] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 627] setpgid(0, 0) = 0 [pid 627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 627] write(3, "1000", 4) = 4 [pid 627] close(3) = 0 [pid 627] symlink("/dev/binderfs", "./binderfs") = 0 [pid 627] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 627] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 625] <... bpf resumed>) = 7 [pid 626] <... bpf resumed>) = 7 [pid 625] exit_group(0 [pid 624] <... bpf resumed>) = 7 [pid 628] <... bpf resumed>) = 4 [pid 626] exit_group(0 [pid 625] <... exit_group resumed>) = ? [pid 628] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 627] <... bpf resumed>) = 4 [pid 626] <... exit_group resumed>) = ? [pid 625] +++ exited with 0 +++ [pid 624] exit_group(0 [pid 628] <... bpf resumed>) = 5 [pid 628] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 628] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 627] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 624] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 628] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 627] <... bpf resumed>) = 5 [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 627] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", [pid 627] <... bpf resumed>) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./63/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./63") = 0 [pid 292] mkdir("./64", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 629 ./strace-static-x86_64: Process 629 attached [pid 629] set_robust_list(0x555555cf9760, 24) = 0 [pid 629] chdir("./64" [pid 627] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 629] <... chdir resumed>) = 0 [pid 629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 629] setpgid(0, 0) = 0 [pid 629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 629] write(3, "1000", 4) = 4 [pid 629] close(3) = 0 [pid 629] symlink("/dev/binderfs", "./binderfs") = 0 [pid 629] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 627] <... bpf resumed>) = 6 [pid 627] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 629] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 628] <... bpf resumed>) = 7 [pid 626] +++ exited with 0 +++ [pid 628] exit_group(0) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./60/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./60") = 0 [pid 294] mkdir("./61", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 630 ./strace-static-x86_64: Process 630 attached [pid 630] set_robust_list(0x555555cf9760, 24) = 0 [pid 630] chdir("./61") = 0 [pid 630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 630] setpgid(0, 0) = 0 [pid 630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 630] write(3, "1000", 4) = 4 [pid 630] close(3) = 0 [pid 630] symlink("/dev/binderfs", "./binderfs") = 0 [pid 630] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 630] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 627] <... bpf resumed>) = 7 [pid 627] exit_group(0 [pid 624] +++ exited with 0 +++ [pid 627] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=624, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./62/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./62") = 0 [pid 296] mkdir("./63", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 631 ./strace-static-x86_64: Process 631 attached [pid 631] set_robust_list(0x555555cf9760, 24) = 0 [pid 631] chdir("./63") = 0 [pid 631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 631] setpgid(0, 0) = 0 [pid 631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 631] write(3, "1000", 4) = 4 [pid 631] close(3) = 0 [pid 631] symlink("/dev/binderfs", "./binderfs") = 0 [pid 631] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 631] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 630] <... bpf resumed>) = 4 [pid 630] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 628] +++ exited with 0 +++ [pid 629] <... bpf resumed>) = 4 [pid 630] <... bpf resumed>) = 5 [pid 627] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 629] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 631] <... bpf resumed>) = 4 [pid 630] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=627, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 630] <... bpf resumed>) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 630] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 629] <... bpf resumed>) = 5 [pid 293] <... restart_syscall resumed>) = 0 [pid 631] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 630] <... bpf resumed>) = 6 [pid 629] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 630] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 629] <... bpf resumed>) = 0 [pid 295] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW [pid 631] <... bpf resumed>) = 5 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW [pid 629] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 631] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... openat resumed>) = 3 [pid 293] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] newfstatat(3, "", [pid 293] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] newfstatat(3, "", [pid 295] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 629] <... bpf resumed>) = 6 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] getdents64(3, [pid 629] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(AT_FDCWD, "./66/binderfs", [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] newfstatat(AT_FDCWD, "./64/binderfs", [pid 295] unlink("./66/binderfs" [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... unlink resumed>) = 0 [pid 293] unlink("./64/binderfs" [pid 631] <... bpf resumed>) = 0 [pid 295] getdents64(3, [pid 293] <... unlink resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] getdents64(3, [pid 295] close(3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 631] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... close resumed>) = 0 [pid 293] close(3 [pid 295] rmdir("./66" [pid 293] <... close resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 293] rmdir("./64" [pid 631] <... bpf resumed>) = 6 [pid 295] mkdir("./67", 0777 [pid 293] <... rmdir resumed>) = 0 [pid 631] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... mkdir resumed>) = 0 [pid 293] mkdir("./65", 0777 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 632 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 632 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 633 [pid 632] set_robust_list(0x555555cf9760, 24) = 0 ./strace-static-x86_64: Process 633 attached [pid 632] chdir("./67" [pid 633] set_robust_list(0x555555cf9760, 24) = 0 [pid 632] <... chdir resumed>) = 0 [pid 632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 632] setpgid(0, 0 [pid 633] chdir("./65") = 0 [pid 632] <... setpgid resumed>) = 0 [pid 632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 632] <... openat resumed>) = 3 [pid 632] write(3, "1000", 4 [pid 633] setpgid(0, 0) = 0 [pid 632] <... write resumed>) = 4 [pid 632] close(3 [pid 633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 632] <... close resumed>) = 0 [pid 632] symlink("/dev/binderfs", "./binderfs") = 0 [pid 633] <... openat resumed>) = 3 [pid 632] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 631] <... bpf resumed>) = 7 [pid 630] <... bpf resumed>) = 7 [pid 629] <... bpf resumed>) = 7 [pid 633] write(3, "1000", 4 [pid 631] exit_group(0 [pid 630] exit_group(0 [pid 631] <... exit_group resumed>) = ? [pid 630] <... exit_group resumed>) = ? [pid 633] <... write resumed>) = 4 [pid 632] <... bpf resumed>) = 3 [pid 631] +++ exited with 0 +++ [pid 629] exit_group(0 [pid 633] close(3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 632] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 633] <... close resumed>) = 0 [pid 629] <... exit_group resumed>) = ? [pid 633] symlink("/dev/binderfs", "./binderfs") = 0 [pid 633] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 296] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 633] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./63/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./63") = 0 [pid 296] mkdir("./64", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 635 ./strace-static-x86_64: Process 635 attached [pid 635] set_robust_list(0x555555cf9760, 24) = 0 [pid 635] chdir("./64") = 0 [pid 635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 635] setpgid(0, 0) = 0 [pid 635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 635] write(3, "1000", 4) = 4 [pid 635] close(3) = 0 [pid 635] symlink("/dev/binderfs", "./binderfs") = 0 [pid 635] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 635] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 632] <... bpf resumed>) = 4 [pid 630] +++ exited with 0 +++ [pid 632] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=630, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 632] <... bpf resumed>) = 5 [pid 632] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 632] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 632] <... bpf resumed>) = 6 [pid 294] <... openat resumed>) = 3 [pid 632] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./61/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./61") = 0 [pid 294] mkdir("./62", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 636 ./strace-static-x86_64: Process 636 attached [pid 636] set_robust_list(0x555555cf9760, 24) = 0 [pid 636] chdir("./62") = 0 [pid 636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 636] setpgid(0, 0) = 0 [pid 636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 636] write(3, "1000", 4) = 4 [pid 636] close(3) = 0 [pid 636] symlink("/dev/binderfs", "./binderfs") = 0 [pid 636] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 636] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 635] <... bpf resumed>) = 4 [pid 633] <... bpf resumed>) = 4 [pid 632] <... bpf resumed>) = 7 [pid 636] <... bpf resumed>) = 4 [pid 629] +++ exited with 0 +++ [pid 635] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 633] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 632] exit_group(0 [pid 635] <... bpf resumed>) = 5 [pid 633] <... bpf resumed>) = 5 [pid 632] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=629, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 636] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 635] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 633] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 632] +++ exited with 0 +++ [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 635] <... bpf resumed>) = 0 [pid 633] <... bpf resumed>) = 0 [pid 636] <... bpf resumed>) = 5 [pid 633] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... restart_syscall resumed>) = 0 [pid 635] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 633] <... bpf resumed>) = 6 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 633] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 635] <... bpf resumed>) = 6 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 636] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 635] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] newfstatat(3, "", [pid 292] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 636] <... bpf resumed>) = 0 [pid 295] getdents64(3, [pid 292] <... openat resumed>) = 3 [pid 636] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] newfstatat(3, "", [pid 295] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./67/binderfs", [pid 292] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./67/binderfs" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 636] <... bpf resumed>) = 6 [pid 292] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... unlink resumed>) = 0 [pid 636] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] getdents64(3, [pid 292] newfstatat(AT_FDCWD, "./64/binderfs", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] close(3 [pid 292] unlink("./64/binderfs" [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./67" [pid 292] <... unlink resumed>) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./64" [pid 295] <... rmdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 295] mkdir("./68", 0777 [pid 292] mkdir("./65", 0777 [pid 295] <... mkdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 637 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 638 ./strace-static-x86_64: Process 638 attached ./strace-static-x86_64: Process 637 attached [pid 638] set_robust_list(0x555555cf9760, 24 [pid 637] set_robust_list(0x555555cf9760, 24 [pid 638] <... set_robust_list resumed>) = 0 [pid 638] chdir("./68" [pid 637] <... set_robust_list resumed>) = 0 [pid 637] chdir("./65" [pid 638] <... chdir resumed>) = 0 [pid 638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 637] <... chdir resumed>) = 0 [pid 638] setpgid(0, 0) = 0 [pid 638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 638] <... openat resumed>) = 3 [pid 638] write(3, "1000", 4) = 4 [pid 638] close(3 [pid 636] <... bpf resumed>) = 7 [pid 635] <... bpf resumed>) = 7 [pid 633] <... bpf resumed>) = 7 [pid 636] exit_group(0 [pid 633] exit_group(0 [pid 638] <... close resumed>) = 0 [pid 635] exit_group(0 [pid 636] <... exit_group resumed>) = ? [pid 635] <... exit_group resumed>) = ? [pid 633] <... exit_group resumed>) = ? [pid 638] symlink("/dev/binderfs", "./binderfs") = 0 [pid 638] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 636] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW [pid 637] setpgid(0, 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 637] <... setpgid resumed>) = 0 [pid 294] umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./62/binderfs" [pid 638] <... bpf resumed>) = 3 [pid 294] <... unlink resumed>) = 0 [pid 638] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./62" [pid 637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./63", 0777 [pid 637] <... openat resumed>) = 3 [pid 637] write(3, "1000", 4) = 4 [pid 637] close(3) = 0 [pid 637] symlink("/dev/binderfs", "./binderfs" [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 637] <... symlink resumed>) = 0 [pid 637] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 639 ./strace-static-x86_64: Process 639 attached [pid 637] <... bpf resumed>) = 3 [pid 637] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 639] set_robust_list(0x555555cf9760, 24) = 0 [pid 639] chdir("./63") = 0 [pid 639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 639] setpgid(0, 0) = 0 [pid 639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 639] write(3, "1000", 4) = 4 [pid 639] close(3) = 0 [pid 639] symlink("/dev/binderfs", "./binderfs") = 0 [pid 639] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 639] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 633] +++ exited with 0 +++ [pid 635] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=633, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 296] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./64/binderfs" [pid 293] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] rmdir("./64") = 0 [pid 293] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] mkdir("./65", 0777) = 0 [pid 293] <... openat resumed>) = 3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] newfstatat(3, "", ./strace-static-x86_64: Process 640 attached [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 640 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./65/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./65" [pid 640] set_robust_list(0x555555cf9760, 24 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./66", 0777 [pid 640] <... set_robust_list resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 641 attached [pid 640] chdir("./65" [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 641 [pid 640] <... chdir resumed>) = 0 [pid 640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 640] setpgid(0, 0) = 0 [pid 640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 640] write(3, "1000", 4) = 4 [pid 640] close(3) = 0 [pid 640] symlink("/dev/binderfs", "./binderfs" [pid 641] set_robust_list(0x555555cf9760, 24 [pid 640] <... symlink resumed>) = 0 [pid 640] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 641] <... set_robust_list resumed>) = 0 [pid 640] <... bpf resumed>) = 3 [pid 640] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 641] chdir("./66") = 0 [pid 641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 641] setpgid(0, 0) = 0 [pid 641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 641] write(3, "1000", 4) = 4 [pid 641] close(3) = 0 [pid 641] symlink("/dev/binderfs", "./binderfs") = 0 [pid 641] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 641] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 638] <... bpf resumed>) = 4 [pid 641] <... bpf resumed>) = 4 [pid 640] <... bpf resumed>) = 4 [pid 639] <... bpf resumed>) = 4 [pid 637] <... bpf resumed>) = 4 [pid 638] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 641] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 640] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 639] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 637] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 638] <... bpf resumed>) = 5 [pid 641] <... bpf resumed>) = 5 [pid 640] <... bpf resumed>) = 5 [pid 639] <... bpf resumed>) = 5 [pid 637] <... bpf resumed>) = 5 [pid 638] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 641] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 640] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 639] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 637] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 638] <... bpf resumed>) = 0 [pid 641] <... bpf resumed>) = 0 [pid 640] <... bpf resumed>) = 0 [pid 639] <... bpf resumed>) = 0 [pid 637] <... bpf resumed>) = 0 [pid 638] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 641] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 640] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 639] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 637] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 638] <... bpf resumed>) = 6 [pid 641] <... bpf resumed>) = 6 [pid 640] <... bpf resumed>) = 6 [pid 638] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 641] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 640] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 639] <... bpf resumed>) = 6 [pid 638] <... bpf resumed>) = 7 [pid 641] <... bpf resumed>) = 7 [pid 640] <... bpf resumed>) = 7 [pid 638] exit_group(0 [pid 641] exit_group(0 [pid 640] exit_group(0 [pid 639] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 637] <... bpf resumed>) = 6 [pid 638] <... exit_group resumed>) = ? [pid 641] <... exit_group resumed>) = ? [pid 640] <... exit_group resumed>) = ? [pid 639] <... bpf resumed>) = 7 [pid 637] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 638] +++ exited with 0 +++ [pid 641] +++ exited with 0 +++ [pid 639] exit_group(0) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=638, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", [pid 293] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] getdents64(3, [pid 293] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... openat resumed>) = 3 [pid 295] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] newfstatat(3, "", [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] newfstatat(AT_FDCWD, "./68/binderfs", [pid 293] getdents64(3, [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./68/binderfs" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... unlink resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] getdents64(3, [pid 293] newfstatat(AT_FDCWD, "./66/binderfs", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... close resumed>) = 0 [pid 293] unlink("./66/binderfs" [pid 295] rmdir("./68" [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 293] close(3 [pid 295] mkdir("./69", 0777 [pid 293] <... close resumed>) = 0 [pid 293] rmdir("./66") = 0 [pid 293] mkdir("./67", 0777 [pid 295] <... mkdir resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 642 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 643 ./strace-static-x86_64: Process 642 attached ./strace-static-x86_64: Process 643 attached [pid 643] set_robust_list(0x555555cf9760, 24 [pid 642] set_robust_list(0x555555cf9760, 24 [pid 643] <... set_robust_list resumed>) = 0 [pid 642] <... set_robust_list resumed>) = 0 [pid 643] chdir("./67" [pid 642] chdir("./69" [pid 643] <... chdir resumed>) = 0 [pid 642] <... chdir resumed>) = 0 [pid 642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 642] <... prctl resumed>) = 0 [pid 643] setpgid(0, 0 [pid 642] setpgid(0, 0 [pid 643] <... setpgid resumed>) = 0 [pid 642] <... setpgid resumed>) = 0 [pid 643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 643] <... openat resumed>) = 3 [pid 642] <... openat resumed>) = 3 [pid 643] write(3, "1000", 4 [pid 642] write(3, "1000", 4 [pid 643] <... write resumed>) = 4 [pid 642] <... write resumed>) = 4 [pid 643] close(3 [pid 642] close(3 [pid 643] <... close resumed>) = 0 [pid 642] <... close resumed>) = 0 [pid 643] symlink("/dev/binderfs", "./binderfs" [pid 642] symlink("/dev/binderfs", "./binderfs" [pid 643] <... symlink resumed>) = 0 [pid 642] <... symlink resumed>) = 0 [pid 643] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 642] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 643] <... bpf resumed>) = 3 [pid 642] <... bpf resumed>) = 3 [pid 642] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 643] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 637] <... bpf resumed>) = 7 [pid 640] +++ exited with 0 +++ [pid 637] exit_group(0) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./65/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./65") = 0 [pid 296] mkdir("./66", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 644 attached , child_tidptr=0x555555cf9750) = 644 [pid 644] set_robust_list(0x555555cf9760, 24) = 0 [pid 644] chdir("./66") = 0 [pid 644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 644] setpgid(0, 0) = 0 [pid 644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 644] write(3, "1000", 4) = 4 [pid 644] close(3) = 0 [pid 644] symlink("/dev/binderfs", "./binderfs") = 0 [pid 644] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 644] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16) = 4 [pid 643] <... bpf resumed>) = 4 [pid 642] <... bpf resumed>) = 4 [pid 639] +++ exited with 0 +++ [pid 637] +++ exited with 0 +++ [pid 644] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 643] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 642] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 644] <... bpf resumed>) = 5 [pid 643] <... bpf resumed>) = 5 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=637, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=639, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 642] <... bpf resumed>) = 5 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 643] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 644] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 643] <... bpf resumed>) = 0 [pid 642] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] <... restart_syscall resumed>) = 0 [pid 644] <... bpf resumed>) = 0 [pid 643] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 642] <... bpf resumed>) = 0 [pid 644] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 642] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] <... openat resumed>) = 3 [pid 642] <... bpf resumed>) = 6 [pid 294] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 643] <... bpf resumed>) = 6 [pid 642] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 644] <... bpf resumed>) = 6 [pid 643] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] getdents64(3, [pid 644] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] newfstatat(AT_FDCWD, "./63/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./65/binderfs", [pid 294] unlink("./63/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... unlink resumed>) = 0 [pid 292] unlink("./65/binderfs" [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] close(3 [pid 292] getdents64(3, [pid 294] <... close resumed>) = 0 [pid 294] rmdir("./63" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./64", 0777 [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./65" [pid 294] <... mkdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] mkdir("./66", 0777./strace-static-x86_64: Process 645 attached ) = 0 [pid 645] set_robust_list(0x555555cf9760, 24 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 645 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 645] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 646 attached [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 646 [pid 646] set_robust_list(0x555555cf9760, 24) = 0 [pid 646] chdir("./66" [pid 645] chdir("./64" [pid 646] <... chdir resumed>) = 0 [pid 646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 646] setpgid(0, 0) = 0 [pid 646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 645] <... chdir resumed>) = 0 [pid 646] write(3, "1000", 4) = 4 [pid 646] close(3) = 0 [pid 646] symlink("/dev/binderfs", "./binderfs") = 0 [pid 645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 646] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 645] <... prctl resumed>) = 0 [pid 646] <... bpf resumed>) = 3 [pid 645] setpgid(0, 0 [pid 646] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 645] <... setpgid resumed>) = 0 [pid 645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 645] write(3, "1000", 4) = 4 [pid 645] close(3) = 0 [pid 645] symlink("/dev/binderfs", "./binderfs") = 0 [pid 645] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 645] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 646] <... bpf resumed>) = 4 [pid 645] <... bpf resumed>) = 4 [pid 644] <... bpf resumed>) = 7 [pid 643] <... bpf resumed>) = 7 [pid 642] <... bpf resumed>) = 7 [pid 646] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 645] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 644] exit_group(0 [pid 643] exit_group(0 [pid 646] <... bpf resumed>) = 5 [pid 645] <... bpf resumed>) = 5 [pid 644] <... exit_group resumed>) = ? [pid 643] <... exit_group resumed>) = ? [pid 642] exit_group(0 [pid 646] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 646] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 643] +++ exited with 0 +++ [pid 642] <... exit_group resumed>) = ? [pid 646] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16) = 7 [pid 646] exit_group(0) = ? [pid 644] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 645] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=643, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 645] <... bpf resumed>) = 0 [pid 645] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 645] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... openat resumed>) = 3 [pid 296] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] newfstatat(3, "", [pid 296] <... openat resumed>) = 3 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] newfstatat(3, "", [pid 293] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, [pid 293] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] newfstatat(AT_FDCWD, "./67/binderfs", [pid 296] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] unlink("./67/binderfs" [pid 296] newfstatat(AT_FDCWD, "./66/binderfs", [pid 293] <... unlink resumed>) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] getdents64(3, [pid 296] unlink("./66/binderfs" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./67" [pid 296] <... unlink resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 296] getdents64(3, [pid 293] mkdir("./68", 0777 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 296] close(3 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... close resumed>) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 647 [pid 296] rmdir("./66"./strace-static-x86_64: Process 647 attached ) = 0 [pid 647] set_robust_list(0x555555cf9760, 24 [pid 296] mkdir("./67", 0777 [pid 647] <... set_robust_list resumed>) = 0 [pid 647] chdir("./68" [pid 296] <... mkdir resumed>) = 0 [pid 647] <... chdir resumed>) = 0 [pid 647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 647] <... prctl resumed>) = 0 [pid 647] setpgid(0, 0) = 0 [pid 647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 648 [pid 647] write(3, "1000", 4) = 4 [pid 647] close(3) = 0 [pid 647] symlink("/dev/binderfs", "./binderfs") = 0 [pid 647] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 647] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 648 attached [pid 648] set_robust_list(0x555555cf9760, 24) = 0 [pid 648] chdir("./67") = 0 [pid 648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 648] setpgid(0, 0) = 0 [pid 648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 648] write(3, "1000", 4) = 4 [pid 648] close(3) = 0 [pid 648] symlink("/dev/binderfs", "./binderfs") = 0 [pid 648] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 648] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 642] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=642, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./69/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./69") = 0 [pid 295] mkdir("./70", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 649 ./strace-static-x86_64: Process 649 attached [pid 649] set_robust_list(0x555555cf9760, 24) = 0 [pid 649] chdir("./70") = 0 [pid 649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 649] setpgid(0, 0) = 0 [pid 649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 649] write(3, "1000", 4) = 4 [pid 649] close(3) = 0 [pid 649] symlink("/dev/binderfs", "./binderfs") = 0 [pid 649] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 649] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 646] +++ exited with 0 +++ [pid 645] <... bpf resumed>) = 7 [pid 649] <... bpf resumed>) = 4 [pid 648] <... bpf resumed>) = 4 [pid 647] <... bpf resumed>) = 4 [pid 649] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 648] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 645] exit_group(0 [pid 649] <... bpf resumed>) = 5 [pid 648] <... bpf resumed>) = 5 [pid 647] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 645] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=646, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 649] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 648] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 647] <... bpf resumed>) = 5 [pid 649] <... bpf resumed>) = 0 [pid 648] <... bpf resumed>) = 0 [pid 649] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 648] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 649] <... bpf resumed>) = 6 [pid 648] <... bpf resumed>) = 6 [pid 647] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 645] +++ exited with 0 +++ [pid 649] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 648] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 647] <... bpf resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=645, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 647] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 647] <... bpf resumed>) = 6 [pid 292] <... openat resumed>) = 3 [pid 647] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./66/binderfs", [pid 294] umount2("./64", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] unlink("./66/binderfs" [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... unlink resumed>) = 0 [pid 294] umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] getdents64(3, [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./64/binderfs", [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] close(3 [pid 294] unlink("./64/binderfs") = 0 [pid 292] <... close resumed>) = 0 [pid 294] getdents64(3, [pid 292] rmdir("./66" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./64") = 0 [pid 292] <... rmdir resumed>) = 0 [pid 294] mkdir("./65", 0777) = 0 [pid 292] mkdir("./67", 0777 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 650 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 650 attached [pid 650] set_robust_list(0x555555cf9760, 24) = 0 [pid 650] chdir("./65" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 651 [pid 650] <... chdir resumed>) = 0 [pid 650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 650] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 651 attached [pid 650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 651] set_robust_list(0x555555cf9760, 24 [pid 650] <... openat resumed>) = 3 [pid 650] write(3, "1000", 4 [pid 651] <... set_robust_list resumed>) = 0 [pid 650] <... write resumed>) = 4 [pid 650] close(3) = 0 [pid 650] symlink("/dev/binderfs", "./binderfs") = 0 [pid 650] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 651] chdir("./67" [pid 650] <... bpf resumed>) = 3 [pid 650] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 651] <... chdir resumed>) = 0 [pid 651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 651] setpgid(0, 0) = 0 [pid 651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 651] write(3, "1000", 4) = 4 [pid 651] close(3) = 0 [pid 651] symlink("/dev/binderfs", "./binderfs") = 0 [pid 651] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 651] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 649] <... bpf resumed>) = 7 [pid 648] <... bpf resumed>) = 7 [pid 647] <... bpf resumed>) = 7 [pid 649] exit_group(0 [pid 648] exit_group(0 [pid 647] exit_group(0 [pid 649] <... exit_group resumed>) = ? [pid 648] <... exit_group resumed>) = ? [pid 647] <... exit_group resumed>) = ? [pid 651] <... bpf resumed>) = 4 [pid 650] <... bpf resumed>) = 4 [pid 649] +++ exited with 0 +++ [pid 650] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=649, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 651] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 650] <... bpf resumed>) = 5 [pid 650] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 295] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 650] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./70/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 650] <... bpf resumed>) = 6 [pid 295] rmdir("./70" [pid 650] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./71", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 652 attached , child_tidptr=0x555555cf9750) = 652 [pid 652] set_robust_list(0x555555cf9760, 24) = 0 [pid 651] <... bpf resumed>) = 5 [pid 652] chdir("./71" [pid 651] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 652] <... chdir resumed>) = 0 [pid 651] <... bpf resumed>) = 0 [pid 651] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 652] setpgid(0, 0) = 0 [pid 652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 652] write(3, "1000", 4) = 4 [pid 652] close(3) = 0 [pid 652] symlink("/dev/binderfs", "./binderfs") = 0 [pid 651] <... bpf resumed>) = 6 [pid 652] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 651] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 652] <... bpf resumed>) = 3 [pid 652] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 648] +++ exited with 0 +++ [pid 647] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=648, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 296] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(AT_FDCWD, "./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... openat resumed>) = 3 [pid 296] unlink("./67/binderfs" [pid 293] newfstatat(3, "", [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 293] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./67") = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] mkdir("./68", 0777 [pid 293] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 653 [pid 293] newfstatat(AT_FDCWD, "./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 ./strace-static-x86_64: Process 653 attached [pid 293] unlink("./68/binderfs" [pid 653] set_robust_list(0x555555cf9760, 24) = 0 [pid 293] <... unlink resumed>) = 0 [pid 653] chdir("./68" [pid 293] getdents64(3, [pid 653] <... chdir resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 293] close(3 [pid 653] <... prctl resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 653] setpgid(0, 0 [pid 293] rmdir("./68" [pid 653] <... setpgid resumed>) = 0 [pid 653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] <... rmdir resumed>) = 0 [pid 653] write(3, "1000", 4 [pid 293] mkdir("./69", 0777 [pid 653] <... write resumed>) = 4 [pid 653] close(3) = 0 [pid 653] symlink("/dev/binderfs", "./binderfs") = 0 [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 653] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 654 [pid 653] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 654 attached [pid 654] set_robust_list(0x555555cf9760, 24) = 0 [pid 654] chdir("./69") = 0 [pid 654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 654] setpgid(0, 0) = 0 [pid 654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 654] write(3, "1000", 4) = 4 [pid 654] close(3) = 0 [pid 654] symlink("/dev/binderfs", "./binderfs") = 0 [pid 654] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 654] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 650] <... bpf resumed>) = 7 [pid 651] <... bpf resumed>) = 7 [pid 653] <... bpf resumed>) = 4 [pid 652] <... bpf resumed>) = 4 [pid 650] exit_group(0 [pid 653] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 652] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 651] exit_group(0 [pid 650] <... exit_group resumed>) = ? [pid 654] <... bpf resumed>) = 4 [pid 653] <... bpf resumed>) = 5 [pid 652] <... bpf resumed>) = 5 [pid 651] <... exit_group resumed>) = ? [pid 653] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 652] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 653] <... bpf resumed>) = 0 [pid 652] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 653] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 652] <... bpf resumed>) = 6 [pid 653] <... bpf resumed>) = 6 [pid 653] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 652] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 654] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 654] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 654] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 654] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 651] +++ exited with 0 +++ [pid 650] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=650, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=651, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 294] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 294] umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 292] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./65/binderfs", [pid 292] newfstatat(AT_FDCWD, "./67/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./65/binderfs" [pid 292] unlink("./67/binderfs" [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 294] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... close resumed>) = 0 [pid 292] close(3 [pid 294] rmdir("./65" [pid 292] <... close resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 292] rmdir("./67" [pid 294] mkdir("./66", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 292] mkdir("./68", 0777 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 655 ./strace-static-x86_64: Process 655 attached [pid 655] set_robust_list(0x555555cf9760, 24) = 0 [pid 655] chdir("./66" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 656 [pid 655] <... chdir resumed>) = 0 [pid 655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 655] setpgid(0, 0) = 0 [pid 655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 656 attached [pid 655] write(3, "1000", 4 [pid 656] set_robust_list(0x555555cf9760, 24 [pid 655] <... write resumed>) = 4 [pid 656] <... set_robust_list resumed>) = 0 [pid 655] close(3 [pid 656] chdir("./68" [pid 655] <... close resumed>) = 0 [pid 656] <... chdir resumed>) = 0 [pid 655] symlink("/dev/binderfs", "./binderfs" [pid 656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 655] <... symlink resumed>) = 0 [pid 656] setpgid(0, 0) = 0 [pid 655] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 655] <... bpf resumed>) = 3 [pid 656] <... openat resumed>) = 3 [pid 655] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 656] write(3, "1000", 4) = 4 [pid 656] close(3) = 0 [pid 656] symlink("/dev/binderfs", "./binderfs") = 0 [pid 656] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 656] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 653] <... bpf resumed>) = 7 [pid 652] <... bpf resumed>) = 7 [pid 656] <... bpf resumed>) = 4 [pid 655] <... bpf resumed>) = 4 [pid 654] <... bpf resumed>) = 7 [pid 653] exit_group(0 [pid 656] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 655] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 654] exit_group(0 [pid 653] <... exit_group resumed>) = ? [pid 652] exit_group(0 [pid 656] <... bpf resumed>) = 5 [pid 655] <... bpf resumed>) = 5 [pid 654] <... exit_group resumed>) = ? [pid 653] +++ exited with 0 +++ [pid 652] <... exit_group resumed>) = ? [pid 655] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 655] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 656] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 655] <... bpf resumed>) = 6 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 655] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW [pid 656] <... bpf resumed>) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 656] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./68/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./68") = 0 [pid 296] mkdir("./69", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 657 ./strace-static-x86_64: Process 657 attached [pid 657] set_robust_list(0x555555cf9760, 24) = 0 [pid 657] chdir("./69" [pid 656] <... bpf resumed>) = 6 [pid 657] <... chdir resumed>) = 0 [pid 657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 657] setpgid(0, 0 [pid 656] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 657] <... setpgid resumed>) = 0 [pid 657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 657] write(3, "1000", 4) = 4 [pid 657] close(3) = 0 [pid 657] symlink("/dev/binderfs", "./binderfs") = 0 [pid 657] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 657] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 655] <... bpf resumed>) = 7 [pid 655] exit_group(0) = ? [pid 656] <... bpf resumed>) = 7 [pid 654] +++ exited with 0 +++ [pid 652] +++ exited with 0 +++ [pid 657] <... bpf resumed>) = 4 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=652, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=654, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 656] exit_group(0 [pid 295] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 295] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 293] <... restart_syscall resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./71/binderfs") = 0 [pid 656] <... exit_group resumed>) = ? [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./71") = 0 [pid 295] mkdir("./72", 0777) = 0 [pid 293] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 657] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 658 attached [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 658 [pid 657] <... bpf resumed>) = 5 [pid 658] set_robust_list(0x555555cf9760, 24 [pid 293] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 657] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 293] <... openat resumed>) = 3 [pid 658] <... set_robust_list resumed>) = 0 [pid 657] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] newfstatat(3, "", [pid 658] chdir("./72" [pid 657] <... bpf resumed>) = 6 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 658] <... chdir resumed>) = 0 [pid 293] getdents64(3, [pid 657] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 658] <... prctl resumed>) = 0 [pid 658] setpgid(0, 0 [pid 293] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 658] <... setpgid resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./69/binderfs", [pid 658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./69/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 658] <... openat resumed>) = 3 [pid 658] write(3, "1000", 4 [pid 293] close(3) = 0 [pid 658] <... write resumed>) = 4 [pid 293] rmdir("./69" [pid 658] close(3 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./70", 0777 [pid 658] <... close resumed>) = 0 [pid 658] symlink("/dev/binderfs", "./binderfs" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 659 ./strace-static-x86_64: Process 659 attached [pid 659] set_robust_list(0x555555cf9760, 24) = 0 [pid 659] chdir("./70" [pid 658] <... symlink resumed>) = 0 [pid 659] <... chdir resumed>) = 0 [pid 658] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 659] setpgid(0, 0) = 0 [ 28.580124][ C0] softirq: huh, entered softirq 3 NET_RX ffffffff83e88890 with preempt_count 00000102, exited with 00000101? [ 28.591636][ T659] BUG: scheduling while atomic: syz-executor156/659/0x00000002 [ 28.599004][ T659] Modules linked in: [ 28.602686][ T659] Preemption disabled at: [ 28.602696][ T659] [] is_module_text_address+0x1a/0x140 [ 28.613712][ T659] CPU: 0 PID: 659 Comm: syz-executor156 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 [ 28.625163][ T659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 28.635057][ T659] Call Trace: [ 28.638176][ T659] [ 28.640957][ T659] dump_stack_lvl+0x151/0x1b7 [ 28.645469][ T659] ? is_module_text_address+0x1a/0x140 [ 28.650763][ T659] ? is_module_text_address+0x1a/0x140 [ 28.656214][ T659] ? io_uring_drop_tctx_refs+0x190/0x190 [ 28.661679][ T659] ? is_module_text_address+0x1a/0x140 [ 28.666967][ T659] dump_stack+0x15/0x17 [ 28.670970][ T659] __schedule_bug+0x195/0x260 [ 28.675476][ T659] ? ttwu_queue_wakelist+0x510/0x510 [ 28.680688][ T659] __schedule+0xd19/0x1590 [ 28.684946][ T659] ? __kasan_check_write+0x14/0x20 [ 28.689891][ T659] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 28.694830][ T659] ? __sched_text_start+0x8/0x8 [ 28.699523][ T659] ? cgroup_update_frozen+0x15f/0x980 [ 28.704721][ T659] ? putname+0xfa/0x150 [ 28.708718][ T659] schedule+0x11f/0x1e0 [ 28.712711][ T659] ptrace_stop+0x4ea/0xa90 [ 28.716964][ T659] ptrace_notify+0x22b/0x350 [ 28.721538][ T659] ? do_notify_parent+0xa30/0xa30 [ 28.726390][ T659] ? __x64_sys_openat+0x243/0x290 [ 28.731250][ T659] ? __ia32_sys_open+0x270/0x270 [ 28.736024][ T659] syscall_exit_to_user_mode+0xac/0x160 [ 28.741412][ T659] do_syscall_64+0x49/0xb0 [ 28.745660][ T659] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 28.751387][ T659] RIP: 0033:0x7f5bb48eea51 [ 28.755642][ T659] Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 3a 96 07 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 93 00 00 00 48 8b 54 24 28 64 48 2b 14 25 [pid 659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 658] <... bpf resumed>) = 3 [pid 655] +++ exited with 0 +++ [pid 658] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 659] write(3, "1000", 4 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 659] <... write resumed>) = 4 [pid 659] close(3) = 0 [pid 659] symlink("/dev/binderfs", "./binderfs" [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 659] <... symlink resumed>) = 0 [pid 659] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./66/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 659] <... bpf resumed>) = 3 [pid 294] rmdir("./66" [pid 659] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./67", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 660 ./strace-static-x86_64: Process 660 attached [pid 660] set_robust_list(0x555555cf9760, 24) = 0 [pid 660] chdir("./67") = 0 [pid 659] <... bpf resumed>) = 4 [pid 658] <... bpf resumed>) = 4 [pid 657] <... bpf resumed>) = 7 [pid 656] +++ exited with 0 +++ [pid 658] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 657] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 658] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 657] <... exit_group resumed>) = ? [pid 658] <... bpf resumed>) = 0 [pid 658] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 657] +++ exited with 0 +++ [pid 292] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW [pid 658] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 660] <... prctl resumed>) = 0 [pid 659] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 660] setpgid(0, 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 659] <... bpf resumed>) = 5 [pid 659] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 660] <... setpgid resumed>) = 0 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 292] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 659] <... bpf resumed>) = 0 [pid 296] <... restart_syscall resumed>) = 0 [pid 292] <... openat resumed>) = 3 [pid 659] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 659] <... bpf resumed>) = 6 [pid 296] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] getdents64(3, [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 659] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... openat resumed>) = 3 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(3, "", [pid 292] newfstatat(AT_FDCWD, "./68/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] unlink("./68/binderfs" [pid 660] <... openat resumed>) = 3 [pid 296] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 660] write(3, "1000", 4) = 4 [pid 660] close(3 [pid 292] <... unlink resumed>) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./69/binderfs", [pid 292] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] unlink("./69/binderfs" [pid 660] <... close resumed>) = 0 [pid 660] symlink("/dev/binderfs", "./binderfs" [pid 296] <... unlink resumed>) = 0 [pid 292] close(3 [pid 296] getdents64(3, [pid 292] <... close resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] rmdir("./68" [pid 660] <... symlink resumed>) = 0 [pid 296] close(3 [pid 292] <... rmdir resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./69" [pid 292] mkdir("./69", 0777 [pid 660] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./70", 0777 [pid 292] <... mkdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 660] <... bpf resumed>) = 3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 660] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 661 attached [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 661 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 662 ./strace-static-x86_64: Process 662 attached [pid 662] set_robust_list(0x555555cf9760, 24) = 0 [pid 661] set_robust_list(0x555555cf9760, 24 [pid 662] chdir("./70") = 0 [pid 661] <... set_robust_list resumed>) = 0 [pid 662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 662] setpgid(0, 0) = 0 [pid 662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 661] chdir("./69") = 0 [pid 661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 662] <... openat resumed>) = 3 [pid 661] <... prctl resumed>) = 0 [pid 661] setpgid(0, 0) = 0 [pid 661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 662] write(3, "1000", 4 [pid 661] write(3, "1000", 4) = 4 [pid 661] close(3) = 0 [pid 661] symlink("/dev/binderfs", "./binderfs" [pid 662] <... write resumed>) = 4 [pid 661] <... symlink resumed>) = 0 [pid 662] close(3) = 0 [pid 662] symlink("/dev/binderfs", "./binderfs" [pid 661] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 662] <... symlink resumed>) = 0 [pid 662] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 658] <... bpf resumed>) = 7 [pid 658] exit_group(0 [pid 659] <... bpf resumed>) = 7 [pid 660] <... bpf resumed>) = 4 [pid 658] <... exit_group resumed>) = ? [pid 660] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 659] exit_group(0 [pid 662] <... bpf resumed>) = 3 [pid 661] <... bpf resumed>) = 3 [pid 660] <... bpf resumed>) = 5 [pid 659] <... exit_group resumed>) = ? [pid 662] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 660] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 661] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 660] <... bpf resumed>) = 0 [pid 660] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [ 28.775084][ T659] RSP: 002b:00007ffc13478990 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 28.783417][ T659] RAX: 0000000000000003 RBX: 0000000000080001 RCX: 00007f5bb48eea51 [ 28.791227][ T659] RDX: 0000000000080001 RSI: 00007f5bb4939125 RDI: 00000000ffffff9c [ 28.799031][ T659] RBP: 00007f5bb4939125 R08: 0000000000000000 R09: 0000000000000000 [ 28.806842][ T659] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc13478a30 [ 28.814656][ T659] R13: 00007ffc13478f50 R14: 00007ffc13478f30 R15: 0000000000000046 [ 28.822474][ T659] [pid 660] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 658] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=658, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./72/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./72") = 0 [pid 295] mkdir("./73", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 663 attached , child_tidptr=0x555555cf9750) = 663 [pid 663] set_robust_list(0x555555cf9760, 24) = 0 [pid 663] chdir("./73") = 0 [pid 663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 663] setpgid(0, 0) = 0 [pid 663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 663] write(3, "1000", 4) = 4 [pid 663] close(3) = 0 [pid 663] symlink("/dev/binderfs", "./binderfs") = 0 [pid 663] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 663] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 662] <... bpf resumed>) = 4 [pid 659] +++ exited with 0 +++ [pid 661] <... bpf resumed>) = 4 [pid 662] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 660] <... bpf resumed>) = 7 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=659, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 662] <... bpf resumed>) = 5 [pid 662] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 662] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 663] <... bpf resumed>) = 4 [pid 662] <... bpf resumed>) = 6 [pid 661] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 660] exit_group(0 [pid 663] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 662] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16) = 7 [pid 661] <... bpf resumed>) = 5 [pid 660] <... exit_group resumed>) = ? [pid 293] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 662] exit_group(0) = ? [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 662] +++ exited with 0 +++ [pid 293] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 661] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 660] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=662, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 661] <... bpf resumed>) = 0 [pid 293] <... openat resumed>) = 3 [pid 661] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] newfstatat(3, "", [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=660, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./70/binderfs") = 0 [pid 293] getdents64(3, [pid 294] <... restart_syscall resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3 [pid 296] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./67", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... close resumed>) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] rmdir("./70" [pid 296] <... openat resumed>) = 3 [pid 294] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 294] newfstatat(3, "", [pid 293] <... rmdir resumed>) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] mkdir("./71", 0777 [pid 661] <... bpf resumed>) = 6 [pid 296] getdents64(3, [pid 294] getdents64(3, [pid 293] <... mkdir resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 661] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./67/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(AT_FDCWD, "./70/binderfs", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 664 ./strace-static-x86_64: Process 664 attached [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] newfstatat(AT_FDCWD, "./67/binderfs", [pid 296] unlink("./70/binderfs" [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 664] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] unlink("./67/binderfs" [pid 296] getdents64(3, [pid 664] chdir("./71" [pid 294] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 294] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] rmdir("./70" [pid 294] close(3 [pid 664] <... chdir resumed>) = 0 [pid 664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 664] setpgid(0, 0 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./71", 0777 [pid 294] <... close resumed>) = 0 [pid 664] <... setpgid resumed>) = 0 [pid 664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 296] <... mkdir resumed>) = 0 [pid 294] rmdir("./67" [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 664] write(3, "1000", 4) = 4 [pid 664] close(3) = 0 [pid 664] symlink("/dev/binderfs", "./binderfs") = 0 [pid 294] <... rmdir resumed>) = 0 [pid 664] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] mkdir("./68", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 665 [pid 664] <... bpf resumed>) = 3 [pid 663] <... bpf resumed>) = 5 [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 664] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 665 attached [pid 665] set_robust_list(0x555555cf9760, 24) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 666 [pid 665] chdir("./71") = 0 [pid 665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 665] setpgid(0, 0) = 0 [pid 665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 663] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 665] <... openat resumed>) = 3 [pid 665] write(3, "1000", 4) = 4 [pid 665] close(3) = 0 [pid 665] symlink("/dev/binderfs", "./binderfs") = 0 [pid 663] <... bpf resumed>) = 0 [pid 665] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 663] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 665] <... bpf resumed>) = 3 [pid 665] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 663] <... bpf resumed>) = 6 [pid 663] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16./strace-static-x86_64: Process 666 attached [pid 666] set_robust_list(0x555555cf9760, 24) = 0 [pid 666] chdir("./68") = 0 [pid 666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 666] setpgid(0, 0) = 0 [pid 666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 666] write(3, "1000", 4) = 4 [pid 666] close(3) = 0 [pid 666] symlink("/dev/binderfs", "./binderfs") = 0 [pid 666] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 666] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 664] <... bpf resumed>) = 4 [pid 661] <... bpf resumed>) = 7 [pid 665] <... bpf resumed>) = 4 [pid 664] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 665] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 664] <... bpf resumed>) = 5 [pid 661] exit_group(0 [pid 664] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 663] <... bpf resumed>) = 7 [pid 661] <... exit_group resumed>) = ? [pid 665] <... bpf resumed>) = 5 [pid 664] <... bpf resumed>) = 0 [pid 664] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 665] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 664] <... bpf resumed>) = 6 [pid 663] exit_group(0 [pid 665] <... bpf resumed>) = 0 [pid 664] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 663] <... exit_group resumed>) = ? [pid 665] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 665] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 664] <... bpf resumed>) = 7 [pid 666] <... bpf resumed>) = 4 [pid 664] exit_group(0 [pid 661] +++ exited with 0 +++ [pid 666] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 664] <... exit_group resumed>) = ? [pid 666] <... bpf resumed>) = 5 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=661, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 666] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 292] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW [pid 666] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 666] <... bpf resumed>) = 6 [pid 292] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 666] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./69/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./69") = 0 [pid 292] mkdir("./70", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 667 ./strace-static-x86_64: Process 667 attached [pid 667] set_robust_list(0x555555cf9760, 24) = 0 [pid 667] chdir("./70") = 0 [pid 667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 667] setpgid(0, 0) = 0 [pid 667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 667] write(3, "1000", 4) = 4 [pid 667] close(3) = 0 [pid 667] symlink("/dev/binderfs", "./binderfs") = 0 [pid 667] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 667] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 665] <... bpf resumed>) = 7 [pid 663] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=663, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 665] exit_group(0) = ? [pid 295] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./73/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./73") = 0 [pid 295] mkdir("./74", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 668 ./strace-static-x86_64: Process 668 attached [pid 668] set_robust_list(0x555555cf9760, 24) = 0 [pid 668] chdir("./74") = 0 [pid 668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 668] setpgid(0, 0) = 0 [pid 668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 668] write(3, "1000", 4) = 4 [pid 668] close(3) = 0 [pid 668] symlink("/dev/binderfs", "./binderfs") = 0 [pid 668] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 668] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 667] <... bpf resumed>) = 4 [pid 666] <... bpf resumed>) = 7 [pid 667] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 666] exit_group(0 [pid 664] +++ exited with 0 +++ [pid 667] <... bpf resumed>) = 5 [pid 666] <... exit_group resumed>) = ? [pid 667] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=664, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 667] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 667] <... bpf resumed>) = 6 [pid 667] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./71/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./71") = 0 [pid 293] mkdir("./72", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 669 ./strace-static-x86_64: Process 669 attached [pid 669] set_robust_list(0x555555cf9760, 24) = 0 [pid 669] chdir("./72") = 0 [pid 669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 669] setpgid(0, 0) = 0 [pid 669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 669] write(3, "1000", 4) = 4 [pid 669] close(3) = 0 [pid 669] symlink("/dev/binderfs", "./binderfs") = 0 [pid 669] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 669] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 668] <... bpf resumed>) = 4 [pid 665] +++ exited with 0 +++ [pid 668] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 668] <... bpf resumed>) = 5 [pid 668] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 296] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW [pid 668] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 668] <... bpf resumed>) = 6 [pid 296] getdents64(3, [pid 668] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./71/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./71") = 0 [pid 296] mkdir("./72", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 670 ./strace-static-x86_64: Process 670 attached [pid 670] set_robust_list(0x555555cf9760, 24) = 0 [pid 670] chdir("./72") = 0 [pid 670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 670] setpgid(0, 0) = 0 [pid 670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 670] write(3, "1000", 4) = 4 [pid 670] close(3) = 0 [pid 670] symlink("/dev/binderfs", "./binderfs") = 0 [pid 670] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 670] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 667] <... bpf resumed>) = 7 [pid 667] exit_group(0) = ? [pid 667] +++ exited with 0 +++ [pid 669] <... bpf resumed>) = 4 [pid 669] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 666] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=666, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=667, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 669] <... bpf resumed>) = 5 [pid 294] umount2("./68", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 669] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... openat resumed>) = 3 [pid 669] <... bpf resumed>) = 0 [pid 294] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 669] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] newfstatat(3, "", [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 294] getdents64(3, [pid 669] <... bpf resumed>) = 6 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 669] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./68/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./68/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./70/binderfs", [pid 294] unlink("./68/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... unlink resumed>) = 0 [pid 292] unlink("./70/binderfs" [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] close(3 [pid 292] getdents64(3, [pid 294] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] rmdir("./68" [pid 292] close(3 [pid 294] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 294] mkdir("./69", 0777 [pid 292] rmdir("./70" [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./71", 0777 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 671 ./strace-static-x86_64: Process 671 attached [pid 671] set_robust_list(0x555555cf9760, 24) = 0 [pid 671] chdir("./69" [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 671] <... chdir resumed>) = 0 [pid 671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 671] setpgid(0, 0) = 0 [pid 671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 672 [pid 671] <... openat resumed>) = 3 [pid 671] write(3, "1000", 4) = 4 [pid 671] close(3) = 0 [pid 671] symlink("/dev/binderfs", "./binderfs") = 0 [pid 671] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 671] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 672 attached [pid 672] set_robust_list(0x555555cf9760, 24) = 0 [pid 672] chdir("./71") = 0 [pid 672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 672] setpgid(0, 0) = 0 [pid 672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 672] write(3, "1000", 4) = 4 [pid 672] close(3) = 0 [pid 672] symlink("/dev/binderfs", "./binderfs") = 0 [pid 672] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 672] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 668] <... bpf resumed>) = 7 [pid 671] <... bpf resumed>) = 4 [pid 670] <... bpf resumed>) = 4 [pid 669] <... bpf resumed>) = 7 [pid 668] exit_group(0 [pid 671] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 670] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 668] <... exit_group resumed>) = ? [pid 672] <... bpf resumed>) = 4 [pid 671] <... bpf resumed>) = 5 [pid 670] <... bpf resumed>) = 5 [pid 669] exit_group(0 [pid 672] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 670] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 669] <... exit_group resumed>) = ? [pid 670] <... bpf resumed>) = 0 [pid 670] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 671] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 671] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 670] <... bpf resumed>) = 6 [pid 671] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 670] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 672] <... bpf resumed>) = 5 [pid 672] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 672] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 672] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 671] <... bpf resumed>) = 7 [pid 668] +++ exited with 0 +++ [pid 671] exit_group(0) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=668, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./74/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./74") = 0 [pid 295] mkdir("./75", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 673 ./strace-static-x86_64: Process 673 attached [pid 673] set_robust_list(0x555555cf9760, 24) = 0 [pid 673] chdir("./75") = 0 [pid 673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 673] setpgid(0, 0) = 0 [pid 673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 673] write(3, "1000", 4) = 4 [pid 673] close(3) = 0 [pid 673] symlink("/dev/binderfs", "./binderfs") = 0 [pid 673] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 673] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 672] <... bpf resumed>) = 7 [pid 670] <... bpf resumed>) = 7 [pid 669] +++ exited with 0 +++ [pid 672] exit_group(0 [pid 671] +++ exited with 0 +++ [pid 670] exit_group(0 [pid 673] <... bpf resumed>) = 4 [pid 672] <... exit_group resumed>) = ? [pid 670] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=669, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 673] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 673] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 673] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", [pid 673] <... bpf resumed>) = 6 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 673] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./72/binderfs", [pid 294] umount2("./69", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] unlink("./72/binderfs" [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 293] <... unlink resumed>) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 294] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] close(3 [pid 294] umount2("./69/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... close resumed>) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] rmdir("./72" [pid 294] newfstatat(AT_FDCWD, "./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 294] unlink("./69/binderfs" [pid 293] mkdir("./73", 0777 [pid 294] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 293] <... mkdir resumed>) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] close(3./strace-static-x86_64: Process 674 attached ) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 674 [pid 294] rmdir("./69" [pid 674] set_robust_list(0x555555cf9760, 24) = 0 [pid 674] chdir("./73" [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./70", 0777 [pid 674] <... chdir resumed>) = 0 [pid 674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 674] setpgid(0, 0) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 674] write(3, "1000", 4 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 675 [pid 674] <... write resumed>) = 4 [pid 674] close(3) = 0 [pid 674] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 675 attached [pid 675] set_robust_list(0x555555cf9760, 24 [pid 674] <... symlink resumed>) = 0 [pid 675] <... set_robust_list resumed>) = 0 [pid 674] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 675] chdir("./70") = 0 [pid 675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 675] setpgid(0, 0) = 0 [pid 675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 675] write(3, "1000", 4) = 4 [pid 675] close(3) = 0 [pid 675] symlink("/dev/binderfs", "./binderfs" [pid 674] <... bpf resumed>) = 3 [pid 675] <... symlink resumed>) = 0 [pid 674] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 675] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 675] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 672] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=672, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./71/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./71") = 0 [pid 292] mkdir("./72", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 676 ./strace-static-x86_64: Process 676 attached [pid 676] set_robust_list(0x555555cf9760, 24) = 0 [pid 676] chdir("./72") = 0 [pid 676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 676] setpgid(0, 0) = 0 [pid 676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 676] write(3, "1000", 4) = 4 [pid 676] close(3) = 0 [pid 676] symlink("/dev/binderfs", "./binderfs") = 0 [pid 676] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 676] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 673] <... bpf resumed>) = 7 [pid 675] <... bpf resumed>) = 4 [pid 674] <... bpf resumed>) = 4 [pid 675] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 674] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 670] +++ exited with 0 +++ [pid 673] exit_group(0 [pid 675] <... bpf resumed>) = 5 [pid 675] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 674] <... bpf resumed>) = 5 [pid 673] <... exit_group resumed>) = ? [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 675] <... bpf resumed>) = 0 [pid 674] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 673] +++ exited with 0 +++ [pid 674] <... bpf resumed>) = 0 [pid 675] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 674] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 675] <... bpf resumed>) = 6 [pid 674] <... bpf resumed>) = 6 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=673, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 675] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 674] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 296] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] newfstatat(3, "", [pid 295] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] getdents64(3, [pid 295] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(AT_FDCWD, "./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./72/binderfs", [pid 295] unlink("./75/binderfs" [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] unlink("./72/binderfs" [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] close(3 [pid 296] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] rmdir("./75" [pid 296] close(3 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 295] mkdir("./76", 0777 [pid 296] rmdir("./72" [pid 295] <... mkdir resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] mkdir("./73", 0777./strace-static-x86_64: Process 677 attached [pid 677] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 677 [pid 677] chdir("./76") = 0 [pid 677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 677] setpgid(0, 0) = 0 [pid 677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 677] write(3, "1000", 4 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 678 [pid 677] <... write resumed>) = 4 [pid 677] close(3) = 0 [pid 677] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 678 attached [pid 677] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 678] set_robust_list(0x555555cf9760, 24) = 0 [pid 677] <... bpf resumed>) = 3 [pid 677] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 678] chdir("./73") = 0 [pid 678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 678] setpgid(0, 0) = 0 [pid 678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 678] write(3, "1000", 4) = 4 [pid 678] close(3) = 0 [pid 678] symlink("/dev/binderfs", "./binderfs") = 0 [pid 678] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 678] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 676] <... bpf resumed>) = 4 [pid 674] <... bpf resumed>) = 7 [pid 675] <... bpf resumed>) = 7 [pid 678] <... bpf resumed>) = 4 [pid 677] <... bpf resumed>) = 4 [pid 676] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 677] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 676] <... bpf resumed>) = 5 [pid 675] exit_group(0 [pid 674] exit_group(0 [pid 677] <... bpf resumed>) = 5 [pid 676] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 675] <... exit_group resumed>) = ? [pid 674] <... exit_group resumed>) = ? [pid 676] <... bpf resumed>) = 0 [pid 676] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 676] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 677] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 676] <... bpf resumed>) = 7 [pid 676] exit_group(0 [pid 677] <... bpf resumed>) = 0 [pid 676] <... exit_group resumed>) = ? [pid 677] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 678] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 677] <... bpf resumed>) = 6 [pid 677] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 678] <... bpf resumed>) = 5 [pid 678] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 678] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 678] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 675] +++ exited with 0 +++ [pid 674] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 294] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 294] umount2("./70", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 293] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 293] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./70/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./70/binderfs", [pid 293] newfstatat(AT_FDCWD, "./73/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./70/binderfs" [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... unlink resumed>) = 0 [pid 293] unlink("./73/binderfs" [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... unlink resumed>) = 0 [pid 294] close(3 [pid 293] getdents64(3, [pid 294] <... close resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] rmdir("./70" [pid 293] close(3 [pid 294] <... rmdir resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 294] mkdir("./71", 0777 [pid 293] rmdir("./73" [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./74", 0777 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 679 ./strace-static-x86_64: Process 679 attached [pid 679] set_robust_list(0x555555cf9760, 24) = 0 [pid 679] chdir("./71" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 679] <... chdir resumed>) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 680 [pid 679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 679] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 680 attached [pid 679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 680] set_robust_list(0x555555cf9760, 24 [pid 679] <... openat resumed>) = 3 [pid 680] <... set_robust_list resumed>) = 0 [pid 679] write(3, "1000", 4 [pid 680] chdir("./74" [pid 679] <... write resumed>) = 4 [pid 679] close(3) = 0 [pid 679] symlink("/dev/binderfs", "./binderfs" [pid 680] <... chdir resumed>) = 0 [pid 679] <... symlink resumed>) = 0 [pid 680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 679] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 680] <... prctl resumed>) = 0 [pid 680] setpgid(0, 0) = 0 [pid 680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 679] <... bpf resumed>) = 3 [pid 679] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 680] <... openat resumed>) = 3 [pid 680] write(3, "1000", 4) = 4 [pid 680] close(3) = 0 [pid 680] symlink("/dev/binderfs", "./binderfs") = 0 [pid 680] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 680] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 677] <... bpf resumed>) = 7 [pid 680] <... bpf resumed>) = 4 [pid 679] <... bpf resumed>) = 4 [pid 678] <... bpf resumed>) = 7 [pid 677] exit_group(0 [pid 676] +++ exited with 0 +++ [pid 680] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 679] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 678] exit_group(0 [pid 677] <... exit_group resumed>) = ? [pid 680] <... bpf resumed>) = 5 [pid 679] <... bpf resumed>) = 5 [pid 678] <... exit_group resumed>) = ? [pid 679] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=676, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 680] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 680] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 679] <... bpf resumed>) = 0 [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 679] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... restart_syscall resumed>) = 0 [pid 680] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 679] <... bpf resumed>) = 6 [pid 679] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./72/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./72") = 0 [pid 292] mkdir("./73", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 682 ./strace-static-x86_64: Process 682 attached [pid 682] set_robust_list(0x555555cf9760, 24) = 0 [pid 682] chdir("./73") = 0 [pid 682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 682] setpgid(0, 0) = 0 [pid 682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 682] write(3, "1000", 4) = 4 [pid 682] close(3) = 0 [pid 682] symlink("/dev/binderfs", "./binderfs") = 0 [pid 682] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 682] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 678] +++ exited with 0 +++ [pid 677] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=678, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 296] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 296] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 296] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./76/binderfs", [pid 296] newfstatat(AT_FDCWD, "./73/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./76/binderfs" [pid 296] unlink("./73/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 296] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 296] close(3 [pid 295] <... close resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./73" [pid 295] rmdir("./76" [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./74", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] mkdir("./77", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 683 ./strace-static-x86_64: Process 683 attached [pid 683] set_robust_list(0x555555cf9760, 24) = 0 [pid 683] chdir("./74" [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 684 [pid 683] <... chdir resumed>) = 0 [pid 683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 683] setpgid(0, 0) = 0 [pid 683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 684 attached ) = 3 [pid 684] set_robust_list(0x555555cf9760, 24 [pid 683] write(3, "1000", 4 [pid 684] <... set_robust_list resumed>) = 0 [pid 683] <... write resumed>) = 4 [pid 683] close(3 [pid 684] chdir("./77" [pid 683] <... close resumed>) = 0 [pid 684] <... chdir resumed>) = 0 [pid 683] symlink("/dev/binderfs", "./binderfs" [pid 684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 683] <... symlink resumed>) = 0 [pid 684] setpgid(0, 0 [pid 683] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 684] <... setpgid resumed>) = 0 [pid 683] <... bpf resumed>) = 3 [pid 684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 683] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 684] <... openat resumed>) = 3 [pid 684] write(3, "1000", 4) = 4 [pid 684] close(3) = 0 [pid 684] symlink("/dev/binderfs", "./binderfs") = 0 [pid 684] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 684] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 680] <... bpf resumed>) = 7 [pid 684] <... bpf resumed>) = 4 [pid 683] <... bpf resumed>) = 4 [pid 682] <... bpf resumed>) = 4 [pid 680] exit_group(0 [pid 679] <... bpf resumed>) = 7 [pid 684] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 683] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 682] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 680] <... exit_group resumed>) = ? [pid 684] <... bpf resumed>) = 5 [pid 683] <... bpf resumed>) = 5 [pid 682] <... bpf resumed>) = 5 [pid 679] exit_group(0 [pid 684] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 683] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 682] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 679] <... exit_group resumed>) = ? [pid 684] <... bpf resumed>) = 0 [pid 683] <... bpf resumed>) = 0 [pid 682] <... bpf resumed>) = 0 [pid 682] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 684] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 683] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 682] <... bpf resumed>) = 6 [pid 682] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 683] <... bpf resumed>) = 6 [pid 684] <... bpf resumed>) = 6 [pid 683] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 684] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 680] +++ exited with 0 +++ [pid 679] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=679, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./71", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 293] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... openat resumed>) = 3 [pid 294] getdents64(3, [pid 293] newfstatat(3, "", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] umount2("./71/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] getdents64(3, [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] newfstatat(AT_FDCWD, "./71/binderfs", [pid 293] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./71/binderfs" [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... unlink resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./74/binderfs", [pid 294] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] unlink("./74/binderfs" [pid 294] close(3 [pid 293] <... unlink resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 293] getdents64(3, [pid 294] rmdir("./71" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 293] close(3 [pid 294] mkdir("./72", 0777 [pid 293] <... close resumed>) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 293] rmdir("./74" [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./75", 0777 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 685 ./strace-static-x86_64: Process 685 attached [pid 685] set_robust_list(0x555555cf9760, 24) = 0 [pid 685] chdir("./72" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 685] <... chdir resumed>) = 0 [pid 685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 685] setpgid(0, 0) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 686 [pid 685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 686 attached [pid 685] write(3, "1000", 4 [pid 686] set_robust_list(0x555555cf9760, 24) = 0 [pid 685] <... write resumed>) = 4 [pid 686] chdir("./75" [pid 685] close(3 [pid 686] <... chdir resumed>) = 0 [pid 686] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 685] <... close resumed>) = 0 [pid 685] symlink("/dev/binderfs", "./binderfs" [pid 686] <... prctl resumed>) = 0 [pid 686] setpgid(0, 0 [pid 685] <... symlink resumed>) = 0 [pid 686] <... setpgid resumed>) = 0 [pid 686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 685] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 686] write(3, "1000", 4) = 4 [pid 686] close(3) = 0 [pid 686] symlink("/dev/binderfs", "./binderfs") = 0 [pid 686] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 685] <... bpf resumed>) = 3 [pid 685] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 686] <... bpf resumed>) = 3 [pid 686] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 682] <... bpf resumed>) = 7 [pid 684] <... bpf resumed>) = 7 [pid 683] <... bpf resumed>) = 7 [pid 682] exit_group(0 [pid 684] exit_group(0 [pid 682] <... exit_group resumed>) = ? [pid 684] <... exit_group resumed>) = ? [pid 683] exit_group(0 [pid 682] +++ exited with 0 +++ [pid 683] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=682, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./73/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./73") = 0 [pid 292] mkdir("./74", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 687 attached , child_tidptr=0x555555cf9750) = 687 [pid 687] set_robust_list(0x555555cf9760, 24) = 0 [pid 687] chdir("./74") = 0 [pid 687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 687] setpgid(0, 0) = 0 [pid 687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 687] write(3, "1000", 4) = 4 [pid 687] close(3) = 0 [pid 687] symlink("/dev/binderfs", "./binderfs") = 0 [pid 687] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 687] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 685] <... bpf resumed>) = 4 [pid 685] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 686] <... bpf resumed>) = 4 [pid 685] <... bpf resumed>) = 5 [pid 683] +++ exited with 0 +++ [pid 686] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 685] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 686] <... bpf resumed>) = 5 [pid 685] <... bpf resumed>) = 0 [pid 686] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 685] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=683, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 687] <... bpf resumed>) = 4 [pid 686] <... bpf resumed>) = 0 [pid 685] <... bpf resumed>) = 6 [pid 684] +++ exited with 0 +++ [pid 296] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 686] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 685] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 687] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=684, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 686] <... bpf resumed>) = 6 [pid 686] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 687] <... bpf resumed>) = 5 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... restart_syscall resumed>) = 0 [pid 296] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 687] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./74/binderfs", [pid 295] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 687] <... bpf resumed>) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 687] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] unlink("./74/binderfs" [pid 295] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... unlink resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 296] getdents64(3, [pid 295] newfstatat(3, "", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] close(3 [pid 295] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./74" [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... rmdir resumed>) = 0 [pid 295] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] mkdir("./75", 0777 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... mkdir resumed>) = 0 [pid 295] newfstatat(AT_FDCWD, "./77/binderfs", [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./77/binderfs" [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 688 ./strace-static-x86_64: Process 688 attached [pid 688] set_robust_list(0x555555cf9760, 24 [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3 [pid 688] <... set_robust_list resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 688] chdir("./75" [pid 295] rmdir("./77" [pid 687] <... bpf resumed>) = 6 [pid 688] <... chdir resumed>) = 0 [pid 688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 688] setpgid(0, 0) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 295] mkdir("./78", 0777 [pid 688] <... openat resumed>) = 3 [pid 688] write(3, "1000", 4) = 4 [pid 688] close(3) = 0 [pid 688] symlink("/dev/binderfs", "./binderfs") = 0 [pid 687] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 688] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 689 [pid 688] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 689 attached [pid 689] set_robust_list(0x555555cf9760, 24) = 0 [pid 689] chdir("./78") = 0 [pid 689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 689] setpgid(0, 0) = 0 [pid 689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 689] write(3, "1000", 4) = 4 [pid 689] close(3) = 0 [pid 689] symlink("/dev/binderfs", "./binderfs") = 0 [pid 689] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 689] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 686] <... bpf resumed>) = 7 [pid 685] <... bpf resumed>) = 7 [pid 686] exit_group(0 [pid 685] exit_group(0 [pid 686] <... exit_group resumed>) = ? [pid 685] <... exit_group resumed>) = ? [pid 689] <... bpf resumed>) = 4 [pid 688] <... bpf resumed>) = 4 [pid 687] <... bpf resumed>) = 7 [pid 686] +++ exited with 0 +++ [pid 688] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 689] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 687] exit_group(0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 687] <... exit_group resumed>) = ? [pid 689] <... bpf resumed>) = 5 [pid 688] <... bpf resumed>) = 5 [pid 688] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 688] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 689] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 688] <... bpf resumed>) = 6 [pid 293] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 688] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 689] <... bpf resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 689] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 689] <... bpf resumed>) = 6 [pid 293] <... openat resumed>) = 3 [pid 689] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./75/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./75") = 0 [pid 293] mkdir("./76", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 690 attached , child_tidptr=0x555555cf9750) = 690 [pid 690] set_robust_list(0x555555cf9760, 24) = 0 [pid 690] chdir("./76") = 0 [pid 690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 690] setpgid(0, 0) = 0 [pid 690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 690] write(3, "1000", 4) = 4 [pid 690] close(3) = 0 [pid 690] symlink("/dev/binderfs", "./binderfs") = 0 [pid 690] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 690] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 687] +++ exited with 0 +++ [pid 685] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=685, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./72", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 294] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 294] umount2("./72/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] newfstatat(AT_FDCWD, "./72/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./74/binderfs", [pid 294] unlink("./72/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... unlink resumed>) = 0 [pid 292] unlink("./74/binderfs" [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] close(3 [pid 292] getdents64(3, [pid 294] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] rmdir("./72" [pid 292] close(3 [pid 294] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 294] mkdir("./73", 0777 [pid 292] rmdir("./74" [pid 294] <... mkdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] mkdir("./75", 0777./strace-static-x86_64: Process 691 attached [pid 691] set_robust_list(0x555555cf9760, 24) = 0 [pid 691] chdir("./73" [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 691 [pid 292] <... mkdir resumed>) = 0 [pid 691] <... chdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 691] setpgid(0, 0) = 0 [pid 691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 692 [pid 691] write(3, "1000", 4) = 4 [pid 691] close(3) = 0 [pid 691] symlink("/dev/binderfs", "./binderfs") = 0 [pid 691] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 691] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 692 attached [pid 692] set_robust_list(0x555555cf9760, 24) = 0 [pid 692] chdir("./75") = 0 [pid 692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 692] setpgid(0, 0) = 0 [pid 692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 692] write(3, "1000", 4) = 4 [pid 692] close(3) = 0 [pid 692] symlink("/dev/binderfs", "./binderfs") = 0 [pid 692] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 692] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 689] <... bpf resumed>) = 7 [pid 688] <... bpf resumed>) = 7 [pid 691] <... bpf resumed>) = 4 [pid 690] <... bpf resumed>) = 4 [pid 689] exit_group(0 [pid 691] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 690] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 689] <... exit_group resumed>) = ? [pid 688] exit_group(0 [pid 692] <... bpf resumed>) = 4 [pid 691] <... bpf resumed>) = 5 [pid 690] <... bpf resumed>) = 5 [pid 689] +++ exited with 0 +++ [pid 688] <... exit_group resumed>) = ? [pid 692] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 691] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 690] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 688] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=688, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 690] <... bpf resumed>) = 0 [pid 690] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 692] <... bpf resumed>) = 5 [pid 691] <... bpf resumed>) = 0 [pid 690] <... bpf resumed>) = 6 [pid 691] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 690] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 692] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./75/binderfs", [pid 295] newfstatat(AT_FDCWD, "./78/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./75/binderfs" [pid 295] unlink("./78/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3 [pid 295] close(3 [pid 296] <... close resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 296] rmdir("./75" [pid 295] rmdir("./78" [pid 692] <... bpf resumed>) = 0 [pid 691] <... bpf resumed>) = 6 [pid 296] <... rmdir resumed>) = 0 [pid 691] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] mkdir("./76", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 692] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] <... mkdir resumed>) = 0 [pid 295] mkdir("./79", 0777 [pid 692] <... bpf resumed>) = 6 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... mkdir resumed>) = 0 [pid 692] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 693 attached [pid 691] <... bpf resumed>) = 7 [pid 690] <... bpf resumed>) = 7 [pid 692] <... bpf resumed>) = 7 [pid 692] exit_group(0 [pid 690] exit_group(0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 693 [pid 690] <... exit_group resumed>) = ? [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 694 [pid 691] exit_group(0) = ? ./strace-static-x86_64: Process 694 attached [pid 693] set_robust_list(0x555555cf9760, 24 [pid 692] <... exit_group resumed>) = ? [pid 690] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 693] <... set_robust_list resumed>) = 0 [pid 293] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./76/binderfs" [pid 694] set_robust_list(0x555555cf9760, 24 [pid 693] chdir("./76" [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3 [pid 694] <... set_robust_list resumed>) = 0 [pid 693] <... chdir resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 293] rmdir("./76" [pid 693] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 293] <... rmdir resumed>) = 0 [pid 693] <... prctl resumed>) = 0 [pid 293] mkdir("./77", 0777 [pid 693] setpgid(0, 0 [pid 694] chdir("./79" [pid 693] <... setpgid resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 694] <... chdir resumed>) = 0 [pid 694] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 695 attached [pid 693] <... openat resumed>) = 3 [pid 695] set_robust_list(0x555555cf9760, 24 [pid 694] <... prctl resumed>) = 0 [pid 693] write(3, "1000", 4 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 695 [pid 695] <... set_robust_list resumed>) = 0 [pid 693] <... write resumed>) = 4 [pid 693] close(3) = 0 [pid 693] symlink("/dev/binderfs", "./binderfs" [pid 695] chdir("./77" [pid 693] <... symlink resumed>) = 0 [pid 694] setpgid(0, 0 [pid 693] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 695] <... chdir resumed>) = 0 [pid 694] <... setpgid resumed>) = 0 [pid 694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 694] write(3, "1000", 4 [pid 693] <... bpf resumed>) = 3 [pid 695] setpgid(0, 0 [pid 694] <... write resumed>) = 4 [pid 693] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 695] <... setpgid resumed>) = 0 [pid 695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 694] close(3 [pid 695] write(3, "1000", 4 [pid 694] <... close resumed>) = 0 [pid 694] symlink("/dev/binderfs", "./binderfs" [pid 695] <... write resumed>) = 4 [pid 695] close(3) = 0 [pid 694] <... symlink resumed>) = 0 [pid 695] symlink("/dev/binderfs", "./binderfs") = 0 [pid 694] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 695] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 694] <... bpf resumed>) = 3 [pid 694] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 695] <... bpf resumed>) = 3 [pid 695] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 693] <... bpf resumed>) = 4 [pid 691] +++ exited with 0 +++ [pid 693] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=691, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 693] <... bpf resumed>) = 5 [pid 693] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 294] umount2("./73", MNT_FORCE|UMOUNT_NOFOLLOW [pid 693] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 693] <... bpf resumed>) = 6 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 693] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./73/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./73/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./73") = 0 [pid 294] mkdir("./74", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 696 attached , child_tidptr=0x555555cf9750) = 696 [pid 696] set_robust_list(0x555555cf9760, 24) = 0 [pid 696] chdir("./74") = 0 [pid 696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 696] setpgid(0, 0) = 0 [pid 696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 696] write(3, "1000", 4) = 4 [pid 696] close(3) = 0 [pid 696] symlink("/dev/binderfs", "./binderfs") = 0 [pid 696] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 696] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 695] <... bpf resumed>) = 4 [pid 694] <... bpf resumed>) = 4 [pid 692] +++ exited with 0 +++ [pid 695] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 694] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 693] <... bpf resumed>) = 7 [pid 695] <... bpf resumed>) = 5 [pid 694] <... bpf resumed>) = 5 [pid 696] <... bpf resumed>) = 4 [pid 695] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 693] exit_group(0 [pid 695] <... bpf resumed>) = 0 [pid 694] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 693] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 695] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 694] <... bpf resumed>) = 0 [pid 696] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 696] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 696] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 695] <... bpf resumed>) = 6 [pid 693] +++ exited with 0 +++ [pid 694] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 695] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 696] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... restart_syscall resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=693, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 694] <... bpf resumed>) = 6 [pid 296] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW [pid 694] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... openat resumed>) = 3 [pid 296] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", [pid 296] newfstatat(3, "", [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 296] getdents64(3, [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./76/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./75/binderfs", [pid 296] unlink("./76/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... unlink resumed>) = 0 [pid 292] unlink("./75/binderfs" [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] close(3 [pid 292] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] rmdir("./76" [pid 292] close(3 [pid 296] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 296] mkdir("./77", 0777 [pid 292] rmdir("./75" [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./76", 0777 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 697 ./strace-static-x86_64: Process 697 attached [pid 697] set_robust_list(0x555555cf9760, 24) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 697] chdir("./77") = 0 [pid 697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 698 [pid 697] setpgid(0, 0) = 0 [pid 697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 697] write(3, "1000", 4./strace-static-x86_64: Process 698 attached ) = 4 [pid 697] close(3) = 0 [pid 697] symlink("/dev/binderfs", "./binderfs") = 0 [pid 697] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 698] set_robust_list(0x555555cf9760, 24) = 0 [pid 697] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 698] chdir("./76") = 0 [pid 698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 698] setpgid(0, 0) = 0 [pid 698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 698] write(3, "1000", 4) = 4 [pid 698] close(3) = 0 [pid 698] symlink("/dev/binderfs", "./binderfs") = 0 [pid 698] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 698] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 696] <... bpf resumed>) = 7 [pid 695] <... bpf resumed>) = 7 [pid 694] <... bpf resumed>) = 7 [pid 697] <... bpf resumed>) = 4 [pid 696] exit_group(0 [pid 695] exit_group(0 [pid 696] <... exit_group resumed>) = ? [pid 695] <... exit_group resumed>) = ? [pid 694] exit_group(0 [pid 697] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 694] <... exit_group resumed>) = ? [pid 697] <... bpf resumed>) = 5 [pid 697] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 697] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 697] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 698] <... bpf resumed>) = 4 [pid 696] +++ exited with 0 +++ [pid 695] +++ exited with 0 +++ [pid 698] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 694] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 698] <... bpf resumed>) = 5 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=694, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 698] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 294] <... restart_syscall resumed>) = 0 [pid 698] <... bpf resumed>) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 698] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 294] umount2("./74", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 698] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 295] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./74/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./74/binderfs", [pid 295] newfstatat(AT_FDCWD, "./79/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./74/binderfs" [pid 295] unlink("./79/binderfs" [pid 294] <... unlink resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 295] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 295] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 295] close(3 [pid 294] <... close resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 294] rmdir("./74" [pid 293] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] rmdir("./79" [pid 294] <... rmdir resumed>) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 294] mkdir("./75", 0777 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] mkdir("./80", 0777 [pid 294] <... mkdir resumed>) = 0 [pid 293] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 699 attached [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... openat resumed>) = 3 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 699 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 700 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 699] set_robust_list(0x555555cf9760, 24./strace-static-x86_64: Process 700 attached [pid 700] set_robust_list(0x555555cf9760, 24) = 0 [pid 700] chdir("./80" [pid 699] <... set_robust_list resumed>) = 0 [pid 293] getdents64(3, [pid 700] <... chdir resumed>) = 0 [pid 700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 700] setpgid(0, 0) = 0 [pid 700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 293] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 700] <... openat resumed>) = 3 [pid 700] write(3, "1000", 4 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 700] <... write resumed>) = 4 [pid 699] chdir("./75" [pid 700] close(3) = 0 [pid 700] symlink("/dev/binderfs", "./binderfs") = 0 [pid 700] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 699] <... chdir resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./77/binderfs", [pid 699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 700] <... bpf resumed>) = 3 [pid 699] <... prctl resumed>) = 0 [pid 293] unlink("./77/binderfs" [pid 700] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 699] setpgid(0, 0) = 0 [pid 699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] <... unlink resumed>) = 0 [pid 699] write(3, "1000", 4) = 4 [pid 699] close(3) = 0 [pid 699] symlink("/dev/binderfs", "./binderfs") = 0 [pid 699] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 293] getdents64(3, [pid 699] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./77") = 0 [pid 293] mkdir("./78", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 701 attached [pid 701] set_robust_list(0x555555cf9760, 24) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 701 [pid 701] chdir("./78") = 0 [pid 701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 701] setpgid(0, 0) = 0 [pid 701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 701] write(3, "1000", 4) = 4 [pid 701] close(3) = 0 [pid 701] symlink("/dev/binderfs", "./binderfs") = 0 [pid 701] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 698] <... bpf resumed>) = 7 [pid 697] <... bpf resumed>) = 7 [pid 700] <... bpf resumed>) = 4 [pid 699] <... bpf resumed>) = 4 [pid 700] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 699] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 698] exit_group(0 [pid 700] <... bpf resumed>) = 5 [pid 699] <... bpf resumed>) = 5 [pid 698] <... exit_group resumed>) = ? [pid 697] exit_group(0 [pid 700] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 699] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 698] +++ exited with 0 +++ [pid 700] <... bpf resumed>) = 0 [pid 699] <... bpf resumed>) = 0 [pid 697] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=698, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 700] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 699] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW [pid 697] +++ exited with 0 +++ [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=697, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 699] <... bpf resumed>) = 6 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./76/binderfs" [pid 700] <... bpf resumed>) = 6 [pid 699] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... unlink resumed>) = 0 [pid 700] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./76" [pid 701] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 292] <... rmdir resumed>) = 0 [pid 296] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] mkdir("./77", 0777 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... mkdir resumed>) = 0 [pid 296] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 702 attached [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 702 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 702] set_robust_list(0x555555cf9760, 24 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./77/binderfs" [pid 702] <... set_robust_list resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 702] chdir("./77" [pid 296] close(3) = 0 [pid 702] <... chdir resumed>) = 0 [pid 296] rmdir("./77") = 0 [pid 296] mkdir("./78", 0777 [pid 702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 296] <... mkdir resumed>) = 0 [pid 702] <... prctl resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 702] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 703 attached [pid 703] set_robust_list(0x555555cf9760, 24) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 703 [pid 703] chdir("./78" [pid 702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 703] <... chdir resumed>) = 0 [pid 702] write(3, "1000", 4) = 4 [pid 702] close(3 [pid 703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 702] <... close resumed>) = 0 [pid 703] <... prctl resumed>) = 0 [pid 702] symlink("/dev/binderfs", "./binderfs" [pid 703] setpgid(0, 0) = 0 [pid 703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 702] <... symlink resumed>) = 0 [pid 703] write(3, "1000", 4 [pid 702] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 703] <... write resumed>) = 4 [pid 703] close(3) = 0 [pid 703] symlink("/dev/binderfs", "./binderfs") = 0 [pid 703] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 702] <... bpf resumed>) = 3 [pid 702] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 703] <... bpf resumed>) = 3 [pid 703] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 700] <... bpf resumed>) = 7 [pid 699] <... bpf resumed>) = 7 [pid 700] exit_group(0) = ? [pid 701] <... bpf resumed>) = 4 [pid 700] +++ exited with 0 +++ [pid 699] exit_group(0 [pid 701] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 699] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=700, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 701] <... bpf resumed>) = 5 [pid 702] <... bpf resumed>) = 4 [pid 702] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 702] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 702] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 699] +++ exited with 0 +++ [pid 703] <... bpf resumed>) = 4 [pid 702] <... bpf resumed>) = 6 [pid 701] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 295] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW [pid 701] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=699, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 702] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 701] <... bpf resumed>) = 6 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 701] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./75", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 295] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] getdents64(3, [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./80/binderfs", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] umount2("./75/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] unlink("./80/binderfs" [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... unlink resumed>) = 0 [pid 294] newfstatat(AT_FDCWD, "./75/binderfs", [pid 295] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] unlink("./75/binderfs" [pid 295] close(3 [pid 294] <... unlink resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 294] getdents64(3, [pid 295] rmdir("./80" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 294] close(3 [pid 295] mkdir("./81", 0777 [pid 294] <... close resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 294] rmdir("./75" [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... rmdir resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 704 [pid 294] mkdir("./76", 0777./strace-static-x86_64: Process 704 attached [pid 704] set_robust_list(0x555555cf9760, 24) = 0 [pid 704] chdir("./81" [pid 294] <... mkdir resumed>) = 0 [pid 704] <... chdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 704] setpgid(0, 0) = 0 [pid 704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 705 [pid 704] write(3, "1000", 4 [pid 703] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 704] <... write resumed>) = 4 [pid 703] <... bpf resumed>) = 5 [pid 704] close(3 [pid 703] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 704] <... close resumed>) = 0 [pid 704] symlink("/dev/binderfs", "./binderfs") = 0 [pid 703] <... bpf resumed>) = 0 [pid 704] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 703] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 704] <... bpf resumed>) = 3 [pid 703] <... bpf resumed>) = 6 [pid 704] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 703] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16./strace-static-x86_64: Process 705 attached [pid 705] set_robust_list(0x555555cf9760, 24) = 0 [pid 705] chdir("./76") = 0 [pid 705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 705] setpgid(0, 0) = 0 [pid 705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 705] write(3, "1000", 4) = 4 [pid 705] close(3) = 0 [pid 705] symlink("/dev/binderfs", "./binderfs") = 0 [pid 705] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 705] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 701] <... bpf resumed>) = 7 [pid 704] <... bpf resumed>) = 4 [pid 703] <... bpf resumed>) = 7 [pid 702] <... bpf resumed>) = 7 [pid 701] exit_group(0 [pid 704] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 703] exit_group(0 [pid 702] exit_group(0 [pid 701] <... exit_group resumed>) = ? [pid 705] <... bpf resumed>) = 4 [pid 704] <... bpf resumed>) = 5 [pid 703] <... exit_group resumed>) = ? [pid 702] <... exit_group resumed>) = ? [pid 701] +++ exited with 0 +++ [pid 705] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 704] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 704] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 705] <... bpf resumed>) = 5 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 705] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 704] <... bpf resumed>) = 6 [pid 705] <... bpf resumed>) = 0 [pid 704] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... restart_syscall resumed>) = 0 [pid 705] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./78/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./78" [pid 705] <... bpf resumed>) = 6 [pid 705] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./79", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 706 ./strace-static-x86_64: Process 706 attached [pid 706] set_robust_list(0x555555cf9760, 24) = 0 [pid 706] chdir("./79") = 0 [pid 706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 706] setpgid(0, 0) = 0 [pid 706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 706] write(3, "1000", 4) = 4 [pid 706] close(3) = 0 [pid 706] symlink("/dev/binderfs", "./binderfs") = 0 [pid 706] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 706] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 703] +++ exited with 0 +++ [pid 702] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=703, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=702, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 296] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(3, "", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] getdents64(3, [pid 292] <... openat resumed>) = 3 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] newfstatat(3, "", [pid 296] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] getdents64(3, [pid 296] newfstatat(AT_FDCWD, "./78/binderfs", [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./78/binderfs" [pid 292] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... unlink resumed>) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] newfstatat(AT_FDCWD, "./77/binderfs", [pid 296] close(3 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... close resumed>) = 0 [pid 292] unlink("./77/binderfs" [pid 296] rmdir("./78" [pid 292] <... unlink resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 292] getdents64(3, [pid 296] mkdir("./79", 0777 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 292] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./77" [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 707 ./strace-static-x86_64: Process 707 attached [pid 707] set_robust_list(0x555555cf9760, 24) = 0 [pid 707] chdir("./79" [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./78", 0777 [pid 707] <... chdir resumed>) = 0 [pid 707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 707] setpgid(0, 0 [pid 292] <... mkdir resumed>) = 0 [pid 707] <... setpgid resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 707] write(3, "1000", 4 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 708 [pid 707] <... write resumed>) = 4 [pid 707] close(3) = 0 [pid 707] symlink("/dev/binderfs", "./binderfs") = 0 [pid 707] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 707] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 708 attached [pid 708] set_robust_list(0x555555cf9760, 24) = 0 [pid 708] chdir("./78") = 0 [pid 708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 708] setpgid(0, 0) = 0 [pid 708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 708] write(3, "1000", 4) = 4 [pid 708] close(3) = 0 [pid 708] symlink("/dev/binderfs", "./binderfs") = 0 [pid 708] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 708] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 704] <... bpf resumed>) = 7 [pid 707] <... bpf resumed>) = 4 [pid 706] <... bpf resumed>) = 4 [pid 705] <... bpf resumed>) = 7 [pid 704] exit_group(0 [pid 707] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 704] <... exit_group resumed>) = ? [pid 705] exit_group(0 [pid 706] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 707] <... bpf resumed>) = 5 [pid 705] <... exit_group resumed>) = ? [pid 707] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 706] <... bpf resumed>) = 5 [pid 707] <... bpf resumed>) = 0 [pid 707] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 706] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 707] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 706] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 706] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 705] +++ exited with 0 +++ [pid 708] <... bpf resumed>) = 4 [pid 704] +++ exited with 0 +++ [pid 708] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=705, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 708] <... bpf resumed>) = 5 [pid 294] umount2("./76", MNT_FORCE|UMOUNT_NOFOLLOW [pid 708] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW [pid 708] <... bpf resumed>) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 708] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 295] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./76/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./81/binderfs", [pid 294] newfstatat(AT_FDCWD, "./76/binderfs", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./81/binderfs" [pid 294] unlink("./76/binderfs" [pid 295] <... unlink resumed>) = 0 [pid 295] getdents64(3, [pid 294] <... unlink resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] getdents64(3, [pid 295] close(3 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... close resumed>) = 0 [pid 294] close(3 [pid 295] rmdir("./81" [pid 708] <... bpf resumed>) = 6 [pid 294] <... close resumed>) = 0 [pid 708] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... rmdir resumed>) = 0 [pid 294] rmdir("./76" [pid 295] mkdir("./82", 0777 [pid 294] <... rmdir resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 294] mkdir("./77", 0777 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 709 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 710 ./strace-static-x86_64: Process 710 attached [pid 710] set_robust_list(0x555555cf9760, 24) = 0 [pid 710] chdir("./77"./strace-static-x86_64: Process 709 attached ) = 0 [pid 709] set_robust_list(0x555555cf9760, 24 [pid 710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 710] setpgid(0, 0) = 0 [pid 710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 709] <... set_robust_list resumed>) = 0 [pid 710] <... openat resumed>) = 3 [pid 710] write(3, "1000", 4) = 4 [pid 710] close(3) = 0 [pid 709] chdir("./82" [pid 710] symlink("/dev/binderfs", "./binderfs" [pid 709] <... chdir resumed>) = 0 [pid 709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 709] setpgid(0, 0 [pid 710] <... symlink resumed>) = 0 [pid 708] <... bpf resumed>) = 7 [pid 707] <... bpf resumed>) = 7 [pid 706] <... bpf resumed>) = 7 [pid 708] exit_group(0 [pid 707] exit_group(0 [pid 706] exit_group(0 [pid 708] <... exit_group resumed>) = ? [pid 707] <... exit_group resumed>) = ? [pid 706] <... exit_group resumed>) = ? [pid 710] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 709] <... setpgid resumed>) = 0 [pid 707] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 709] write(3, "1000", 4) = 4 [pid 709] close(3) = 0 [pid 709] symlink("/dev/binderfs", "./binderfs" [pid 296] <... restart_syscall resumed>) = 0 [pid 296] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./79/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./79" [pid 710] <... bpf resumed>) = 3 [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./80", 0777 [pid 710] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 709] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 711 attached [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 711 [pid 711] set_robust_list(0x555555cf9760, 24 [pid 709] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 711] <... set_robust_list resumed>) = 0 [pid 711] chdir("./80" [pid 709] <... bpf resumed>) = 3 [pid 711] <... chdir resumed>) = 0 [pid 709] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 711] setpgid(0, 0) = 0 [pid 711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 711] write(3, "1000", 4) = 4 [pid 711] close(3) = 0 [pid 711] symlink("/dev/binderfs", "./binderfs") = 0 [pid 711] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 711] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 708] +++ exited with 0 +++ [pid 706] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=706, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=708, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 293] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 293] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 293] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] newfstatat(AT_FDCWD, "./79/binderfs", [pid 292] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] unlink("./79/binderfs" [pid 292] newfstatat(AT_FDCWD, "./78/binderfs", [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] unlink("./78/binderfs" [pid 293] close(3 [pid 292] <... unlink resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] getdents64(3, [pid 293] rmdir("./79" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] close(3 [pid 293] mkdir("./80", 0777 [pid 292] <... close resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] rmdir("./78" [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 712 [pid 292] mkdir("./79", 0777./strace-static-x86_64: Process 712 attached [pid 712] set_robust_list(0x555555cf9760, 24) = 0 [pid 712] chdir("./80" [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 712] <... chdir resumed>) = 0 [pid 712] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 713 attached [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 713 [pid 712] <... prctl resumed>) = 0 [pid 712] setpgid(0, 0) = 0 [pid 712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 712] write(3, "1000", 4) = 4 [pid 712] close(3) = 0 [pid 712] symlink("/dev/binderfs", "./binderfs" [pid 713] set_robust_list(0x555555cf9760, 24 [pid 712] <... symlink resumed>) = 0 [pid 712] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 713] <... set_robust_list resumed>) = 0 [pid 713] chdir("./79") = 0 [pid 713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 712] <... bpf resumed>) = 3 [pid 713] <... prctl resumed>) = 0 [pid 713] setpgid(0, 0 [pid 712] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 713] <... setpgid resumed>) = 0 [pid 713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 713] write(3, "1000", 4) = 4 [pid 713] close(3) = 0 [pid 713] symlink("/dev/binderfs", "./binderfs" [pid 710] <... bpf resumed>) = 4 [pid 710] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 709] <... bpf resumed>) = 4 [pid 711] <... bpf resumed>) = 4 [pid 710] <... bpf resumed>) = 5 [pid 709] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 710] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 712] <... bpf resumed>) = 4 [pid 710] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 709] <... bpf resumed>) = 5 [pid 712] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 712] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 712] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 710] <... bpf resumed>) = 6 [pid 709] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 710] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 709] <... bpf resumed>) = 0 [pid 711] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 710] <... bpf resumed>) = 7 [pid 709] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 710] exit_group(0) = ? [pid 712] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 711] <... bpf resumed>) = 5 [pid 712] <... bpf resumed>) = 7 [pid 711] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 712] exit_group(0 [pid 711] <... bpf resumed>) = 0 [pid 712] <... exit_group resumed>) = ? [pid 711] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 709] <... bpf resumed>) = 6 [pid 711] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 709] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 713] <... symlink resumed>) = 0 [pid 713] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 713] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 710] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=710, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./77", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./77/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./77/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./77") = 0 [pid 294] mkdir("./78", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 714 attached , child_tidptr=0x555555cf9750) = 714 [pid 714] set_robust_list(0x555555cf9760, 24) = 0 [pid 714] chdir("./78") = 0 [pid 714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 714] setpgid(0, 0) = 0 [pid 714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 714] write(3, "1000", 4) = 4 [pid 714] close(3) = 0 [pid 714] symlink("/dev/binderfs", "./binderfs") = 0 [pid 714] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 714] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 711] <... bpf resumed>) = 7 [pid 713] <... bpf resumed>) = 4 [pid 712] +++ exited with 0 +++ [pid 711] exit_group(0 [pid 709] <... bpf resumed>) = 7 [pid 713] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 711] <... exit_group resumed>) = ? [pid 714] <... bpf resumed>) = 4 [pid 713] <... bpf resumed>) = 5 [pid 709] exit_group(0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=712, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 713] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 709] <... exit_group resumed>) = ? [pid 714] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 713] <... bpf resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 713] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 714] <... bpf resumed>) = 5 [pid 293] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./80/binderfs") = 0 [pid 713] <... bpf resumed>) = 6 [pid 293] getdents64(3, [pid 714] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 713] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 714] <... bpf resumed>) = 0 [pid 293] rmdir("./80" [pid 714] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./81", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 715 ./strace-static-x86_64: Process 715 attached [pid 715] set_robust_list(0x555555cf9760, 24) = 0 [pid 715] chdir("./81") = 0 [pid 715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 715] setpgid(0, 0) = 0 [pid 714] <... bpf resumed>) = 6 [pid 715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 714] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 715] write(3, "1000", 4) = 4 [pid 715] close(3) = 0 [pid 715] symlink("/dev/binderfs", "./binderfs") = 0 [pid 715] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 715] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 711] +++ exited with 0 +++ [pid 709] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=709, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./80/binderfs", [pid 295] newfstatat(AT_FDCWD, "./82/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./80/binderfs" [pid 295] unlink("./82/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 295] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] getdents64(3, [pid 296] close(3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... close resumed>) = 0 [pid 295] close(3 [pid 296] rmdir("./80" [pid 295] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] rmdir("./82" [pid 296] mkdir("./81", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] mkdir("./83", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... mkdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 716 ./strace-static-x86_64: Process 716 attached [pid 716] set_robust_list(0x555555cf9760, 24) = 0 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 717 [pid 716] chdir("./81"./strace-static-x86_64: Process 717 attached [pid 717] set_robust_list(0x555555cf9760, 24 [pid 716] <... chdir resumed>) = 0 [pid 716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 716] setpgid(0, 0 [pid 717] <... set_robust_list resumed>) = 0 [pid 716] <... setpgid resumed>) = 0 [pid 717] chdir("./83") = 0 [pid 717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 716] write(3, "1000", 4 [pid 717] <... prctl resumed>) = 0 [pid 716] <... write resumed>) = 4 [pid 716] close(3) = 0 [pid 716] symlink("/dev/binderfs", "./binderfs" [pid 717] setpgid(0, 0) = 0 [pid 717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 716] <... symlink resumed>) = 0 [pid 716] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 717] <... openat resumed>) = 3 [pid 716] <... bpf resumed>) = 3 [pid 717] write(3, "1000", 4) = 4 [pid 716] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 717] close(3) = 0 [pid 717] symlink("/dev/binderfs", "./binderfs") = 0 [pid 717] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 717] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 713] <... bpf resumed>) = 7 [pid 716] <... bpf resumed>) = 4 [pid 715] <... bpf resumed>) = 4 [pid 714] <... bpf resumed>) = 7 [pid 713] exit_group(0 [pid 716] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 715] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 713] <... exit_group resumed>) = ? [pid 717] <... bpf resumed>) = 4 [pid 716] <... bpf resumed>) = 5 [pid 715] <... bpf resumed>) = 5 [pid 714] exit_group(0 [pid 715] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 714] <... exit_group resumed>) = ? [pid 717] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 716] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 715] <... bpf resumed>) = 0 [pid 717] <... bpf resumed>) = 5 [pid 717] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 717] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 715] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 716] <... bpf resumed>) = 0 [pid 717] <... bpf resumed>) = 6 [pid 715] <... bpf resumed>) = 6 [pid 716] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 715] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 717] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 716] <... bpf resumed>) = 6 [pid 716] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 714] +++ exited with 0 +++ [pid 713] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=714, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=713, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 294] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 294] umount2("./78", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 294] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 294] umount2("./78/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] newfstatat(AT_FDCWD, "./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] unlink("./78/binderfs" [pid 292] newfstatat(AT_FDCWD, "./79/binderfs", [pid 294] <... unlink resumed>) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] getdents64(3, [pid 292] unlink("./79/binderfs" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] rmdir("./78" [pid 292] getdents64(3, [pid 294] <... rmdir resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] mkdir("./79", 0777 [pid 292] close(3 [pid 294] <... mkdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./79" [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./80", 0777 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 718 ./strace-static-x86_64: Process 718 attached [pid 718] set_robust_list(0x555555cf9760, 24) = 0 [pid 718] chdir("./79") = 0 [pid 292] <... mkdir resumed>) = 0 [pid 718] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 718] <... prctl resumed>) = 0 [pid 718] setpgid(0, 0) = 0 [pid 718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 719 [pid 718] write(3, "1000", 4) = 4 [pid 718] close(3) = 0 [pid 718] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 719 attached ) = 0 [pid 718] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 719] set_robust_list(0x555555cf9760, 24) = 0 [pid 718] <... bpf resumed>) = 3 [pid 718] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 719] chdir("./80") = 0 [pid 719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 719] setpgid(0, 0) = 0 [pid 719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 719] write(3, "1000", 4) = 4 [pid 719] close(3) = 0 [pid 719] symlink("/dev/binderfs", "./binderfs") = 0 [pid 719] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 719] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 717] <... bpf resumed>) = 7 [pid 718] <... bpf resumed>) = 4 [pid 717] exit_group(0 [pid 716] <... bpf resumed>) = 7 [pid 715] <... bpf resumed>) = 7 [pid 718] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 717] <... exit_group resumed>) = ? [pid 719] <... bpf resumed>) = 4 [pid 718] <... bpf resumed>) = 5 [pid 717] +++ exited with 0 +++ [pid 716] exit_group(0 [pid 715] exit_group(0 [pid 718] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 716] <... exit_group resumed>) = ? [pid 715] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=717, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 718] <... bpf resumed>) = 0 [pid 718] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 718] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 719] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 295] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./83/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./83") = 0 [pid 295] mkdir("./84", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 720 ./strace-static-x86_64: Process 720 attached [pid 720] set_robust_list(0x555555cf9760, 24) = 0 [pid 720] chdir("./84" [pid 719] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 720] <... chdir resumed>) = 0 [pid 719] <... bpf resumed>) = 0 [pid 720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 719] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 720] setpgid(0, 0) = 0 [pid 719] <... bpf resumed>) = 6 [pid 720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 719] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 720] <... openat resumed>) = 3 [pid 720] write(3, "1000", 4) = 4 [pid 720] close(3) = 0 [pid 720] symlink("/dev/binderfs", "./binderfs") = 0 [pid 720] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 720] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 716] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=716, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 296] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./81/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./81") = 0 [pid 296] mkdir("./82", 0777) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 721 ./strace-static-x86_64: Process 721 attached [pid 721] set_robust_list(0x555555cf9760, 24) = 0 [pid 721] chdir("./82") = 0 [pid 721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 721] setpgid(0, 0) = 0 [pid 721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 721] write(3, "1000", 4) = 4 [pid 721] close(3) = 0 [pid 721] symlink("/dev/binderfs", "./binderfs") = 0 [pid 721] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 721] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 718] <... bpf resumed>) = 7 [pid 719] <... bpf resumed>) = 7 [pid 721] <... bpf resumed>) = 4 [pid 720] <... bpf resumed>) = 4 [pid 719] exit_group(0 [pid 718] exit_group(0 [pid 715] +++ exited with 0 +++ [pid 718] <... exit_group resumed>) = ? [pid 721] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 721] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 720] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 719] <... exit_group resumed>) = ? [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=715, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW [pid 721] <... bpf resumed>) = 0 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 721] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 720] <... bpf resumed>) = 5 [pid 721] <... bpf resumed>) = 6 [pid 720] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 293] <... openat resumed>) = 3 [pid 720] <... bpf resumed>) = 0 [pid 293] newfstatat(3, "", [pid 720] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 721] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] getdents64(3, [pid 720] <... bpf resumed>) = 6 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 720] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 293] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./81/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./81") = 0 [pid 293] mkdir("./82", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 722 ./strace-static-x86_64: Process 722 attached [pid 722] set_robust_list(0x555555cf9760, 24) = 0 [pid 722] chdir("./82") = 0 [pid 722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 722] setpgid(0, 0) = 0 [pid 722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 722] write(3, "1000", 4) = 4 [pid 722] close(3) = 0 [pid 722] symlink("/dev/binderfs", "./binderfs") = 0 [pid 722] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 722] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 718] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=718, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./79", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./79/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./79/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./79") = 0 [pid 294] mkdir("./80", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 723 ./strace-static-x86_64: Process 723 attached [pid 723] set_robust_list(0x555555cf9760, 24) = 0 [pid 723] chdir("./80") = 0 [pid 723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 723] setpgid(0, 0) = 0 [pid 723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 723] write(3, "1000", 4) = 4 [pid 723] close(3) = 0 [pid 723] symlink("/dev/binderfs", "./binderfs") = 0 [pid 723] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 723] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 721] <... bpf resumed>) = 7 [pid 720] <... bpf resumed>) = 7 [pid 722] <... bpf resumed>) = 4 [pid 721] exit_group(0 [pid 720] exit_group(0 [pid 719] +++ exited with 0 +++ [pid 722] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 721] <... exit_group resumed>) = ? [pid 720] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 722] <... bpf resumed>) = 5 [pid 292] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW [pid 722] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 722] <... bpf resumed>) = 0 [pid 292] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 722] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./80/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./80") = 0 [pid 292] mkdir("./81", 0777 [pid 722] <... bpf resumed>) = 6 [pid 292] <... mkdir resumed>) = 0 [pid 722] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 724 ./strace-static-x86_64: Process 724 attached [pid 724] set_robust_list(0x555555cf9760, 24) = 0 [pid 724] chdir("./81") = 0 [pid 724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 724] setpgid(0, 0) = 0 [pid 724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 724] write(3, "1000", 4) = 4 [pid 724] close(3) = 0 [pid 724] symlink("/dev/binderfs", "./binderfs") = 0 [pid 724] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 724] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 723] <... bpf resumed>) = 4 [pid 723] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 723] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 723] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 723] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 724] <... bpf resumed>) = 4 [pid 723] <... bpf resumed>) = 7 [pid 722] <... bpf resumed>) = 7 [pid 721] +++ exited with 0 +++ [pid 720] +++ exited with 0 +++ [pid 724] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=721, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 724] <... bpf resumed>) = 5 [pid 722] exit_group(0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=720, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 724] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 722] <... exit_group resumed>) = ? [pid 724] <... bpf resumed>) = 0 [pid 724] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 296] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 724] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 295] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./82/binderfs", [pid 295] newfstatat(AT_FDCWD, "./84/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./82/binderfs" [pid 295] unlink("./84/binderfs" [pid 723] exit_group(0 [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 723] <... exit_group resumed>) = ? [pid 295] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] getdents64(3, [pid 296] close(3 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... close resumed>) = 0 [pid 295] close(3 [pid 296] rmdir("./82" [pid 295] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 295] rmdir("./84" [pid 296] mkdir("./83", 0777 [pid 295] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 295] mkdir("./85", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... mkdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 725 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 726 ./strace-static-x86_64: Process 726 attached [pid 726] set_robust_list(0x555555cf9760, 24) = 0 [pid 726] chdir("./85") = 0 [pid 726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 726] setpgid(0, 0) = 0 [pid 726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 725 attached [pid 726] write(3, "1000", 4) = 4 [pid 726] close(3) = 0 [pid 726] symlink("/dev/binderfs", "./binderfs") = 0 [pid 725] set_robust_list(0x555555cf9760, 24 [pid 726] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 725] <... set_robust_list resumed>) = 0 [pid 726] <... bpf resumed>) = 3 [pid 725] chdir("./83" [pid 726] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 725] <... chdir resumed>) = 0 [pid 725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 725] setpgid(0, 0) = 0 [pid 725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 725] write(3, "1000", 4) = 4 [pid 725] close(3) = 0 [pid 725] symlink("/dev/binderfs", "./binderfs") = 0 [pid 725] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 725] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 724] <... bpf resumed>) = 7 [pid 724] exit_group(0 [pid 722] +++ exited with 0 +++ [pid 724] <... exit_group resumed>) = ? [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./82/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./82") = 0 [pid 293] mkdir("./83", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 727 ./strace-static-x86_64: Process 727 attached [pid 727] set_robust_list(0x555555cf9760, 24) = 0 [pid 727] chdir("./83") = 0 [pid 727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 727] setpgid(0, 0) = 0 [pid 727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 727] write(3, "1000", 4) = 4 [pid 727] close(3) = 0 [pid 727] symlink("/dev/binderfs", "./binderfs") = 0 [pid 727] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 727] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 726] <... bpf resumed>) = 4 [pid 726] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 727] <... bpf resumed>) = 4 [pid 726] <... bpf resumed>) = 5 [pid 723] +++ exited with 0 +++ [pid 724] +++ exited with 0 +++ [pid 727] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 726] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 725] <... bpf resumed>) = 4 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 727] <... bpf resumed>) = 5 [pid 726] <... bpf resumed>) = 0 [pid 725] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 727] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 726] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 725] <... bpf resumed>) = 5 [pid 294] <... restart_syscall resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=724, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 727] <... bpf resumed>) = 0 [pid 726] <... bpf resumed>) = 6 [pid 725] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 727] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 726] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 725] <... bpf resumed>) = 0 [pid 292] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW [pid 727] <... bpf resumed>) = 6 [pid 725] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] umount2("./80", MNT_FORCE|UMOUNT_NOFOLLOW [pid 727] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... openat resumed>) = 3 [pid 294] getdents64(3, [pid 292] newfstatat(3, "", [pid 725] <... bpf resumed>) = 6 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 725] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./80/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./80/binderfs", [pid 292] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./80/binderfs" [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... unlink resumed>) = 0 [pid 292] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] close(3 [pid 292] newfstatat(AT_FDCWD, "./81/binderfs", [pid 294] <... close resumed>) = 0 [pid 294] rmdir("./80") = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] mkdir("./81", 0777 [pid 292] unlink("./81/binderfs") = 0 [pid 294] <... mkdir resumed>) = 0 [pid 292] getdents64(3, [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./81"./strace-static-x86_64: Process 728 attached ) = 0 [pid 728] set_robust_list(0x555555cf9760, 24 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 728 [pid 292] mkdir("./82", 0777 [pid 728] <... set_robust_list resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 729 attached [pid 728] chdir("./81" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 729 [pid 729] set_robust_list(0x555555cf9760, 24 [pid 728] <... chdir resumed>) = 0 [pid 729] <... set_robust_list resumed>) = 0 [pid 728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 729] chdir("./82" [pid 728] setpgid(0, 0 [pid 729] <... chdir resumed>) = 0 [pid 728] <... setpgid resumed>) = 0 [pid 728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 728] <... openat resumed>) = 3 [pid 728] write(3, "1000", 4 [pid 729] setpgid(0, 0) = 0 [pid 728] <... write resumed>) = 4 [pid 729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 728] close(3) = 0 [pid 728] symlink("/dev/binderfs", "./binderfs" [pid 729] <... openat resumed>) = 3 [pid 729] write(3, "1000", 4 [pid 728] <... symlink resumed>) = 0 [pid 729] <... write resumed>) = 4 [pid 729] close(3) = 0 [pid 728] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 729] symlink("/dev/binderfs", "./binderfs") = 0 [pid 729] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 728] <... bpf resumed>) = 3 [pid 728] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 729] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 726] <... bpf resumed>) = 7 [pid 729] <... bpf resumed>) = 4 [pid 728] <... bpf resumed>) = 4 [pid 727] <... bpf resumed>) = 7 [pid 726] exit_group(0 [pid 725] <... bpf resumed>) = 7 [pid 729] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 728] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 727] exit_group(0 [pid 726] <... exit_group resumed>) = ? [pid 725] exit_group(0 [pid 729] <... bpf resumed>) = 5 [pid 728] <... bpf resumed>) = 5 [pid 727] <... exit_group resumed>) = ? [pid 725] <... exit_group resumed>) = ? [pid 726] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=726, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 729] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 728] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW [pid 729] <... bpf resumed>) = 0 [pid 728] <... bpf resumed>) = 0 [pid 729] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 728] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 728] <... bpf resumed>) = 6 [pid 728] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./85/binderfs") = 0 [pid 295] getdents64(3, [pid 729] <... bpf resumed>) = 6 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./85") = 0 [pid 295] mkdir("./86", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 730 attached , child_tidptr=0x555555cf9750) = 730 [pid 729] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 730] set_robust_list(0x555555cf9760, 24) = 0 [pid 730] chdir("./86") = 0 [pid 730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 730] setpgid(0, 0) = 0 [pid 730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 730] write(3, "1000", 4) = 4 [pid 730] close(3) = 0 [pid 730] symlink("/dev/binderfs", "./binderfs") = 0 [pid 730] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 730] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 727] +++ exited with 0 +++ [pid 725] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=727, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 293] <... restart_syscall resumed>) = 0 [pid 296] <... restart_syscall resumed>) = 0 [pid 293] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... openat resumed>) = 3 [pid 296] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 293] getdents64(3, [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./83/binderfs", [pid 293] newfstatat(AT_FDCWD, "./83/binderfs", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./83/binderfs" [pid 293] unlink("./83/binderfs" [pid 296] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 293] <... unlink resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] getdents64(3, [pid 296] close(3 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... close resumed>) = 0 [pid 293] close(3 [pid 296] rmdir("./83" [pid 293] <... close resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 293] rmdir("./83" [pid 296] mkdir("./84", 0777 [pid 293] <... rmdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 293] mkdir("./84", 0777 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 731 ./strace-static-x86_64: Process 731 attached [pid 731] set_robust_list(0x555555cf9760, 24) = 0 [pid 731] chdir("./84") = 0 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 732 [pid 731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 731] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 732 attached [pid 731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 732] set_robust_list(0x555555cf9760, 24 [pid 731] <... openat resumed>) = 3 [pid 731] write(3, "1000", 4) = 4 [pid 731] close(3) = 0 [pid 731] symlink("/dev/binderfs", "./binderfs") = 0 [pid 732] <... set_robust_list resumed>) = 0 [pid 731] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 732] chdir("./84") = 0 [pid 732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 731] <... bpf resumed>) = 3 [pid 732] setpgid(0, 0 [pid 731] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 732] <... setpgid resumed>) = 0 [pid 732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 732] write(3, "1000", 4) = 4 [pid 732] close(3) = 0 [pid 732] symlink("/dev/binderfs", "./binderfs") = 0 [pid 732] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 732] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 728] <... bpf resumed>) = 7 [pid 730] <... bpf resumed>) = 4 [pid 729] <... bpf resumed>) = 7 [pid 728] exit_group(0 [pid 730] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 729] exit_group(0 [pid 728] <... exit_group resumed>) = ? [pid 732] <... bpf resumed>) = 4 [pid 731] <... bpf resumed>) = 4 [pid 730] <... bpf resumed>) = 5 [pid 729] <... exit_group resumed>) = ? [pid 730] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 732] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 732] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 732] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 730] <... bpf resumed>) = 0 [pid 732] <... bpf resumed>) = 6 [pid 731] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 730] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 732] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 731] <... bpf resumed>) = 5 [pid 731] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 731] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 730] <... bpf resumed>) = 6 [pid 731] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 730] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 729] +++ exited with 0 +++ [pid 728] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=728, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=729, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 294] <... restart_syscall resumed>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 294] umount2("./81", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 294] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 294] umount2("./81/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] newfstatat(AT_FDCWD, "./81/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./82/binderfs", [pid 294] unlink("./81/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... unlink resumed>) = 0 [pid 292] unlink("./82/binderfs" [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] close(3 [pid 292] getdents64(3, [pid 294] <... close resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] rmdir("./81" [pid 292] close(3 [pid 294] <... rmdir resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 294] mkdir("./82", 0777 [pid 292] rmdir("./82" [pid 294] <... mkdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] mkdir("./83", 0777./strace-static-x86_64: Process 733 attached [pid 733] set_robust_list(0x555555cf9760, 24) = 0 [pid 733] chdir("./82" [pid 292] <... mkdir resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 733 [pid 733] <... chdir resumed>) = 0 [pid 733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 733] setpgid(0, 0) = 0 [pid 733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 733] <... openat resumed>) = 3 [pid 733] write(3, "1000", 4) = 4 [pid 733] close(3) = 0 [pid 733] symlink("/dev/binderfs", "./binderfs") = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 734 [pid 733] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 734 attached ) = 3 [pid 733] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 734] set_robust_list(0x555555cf9760, 24) = 0 [pid 734] chdir("./83") = 0 [pid 734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 734] setpgid(0, 0) = 0 [pid 734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 734] write(3, "1000", 4) = 4 [pid 734] close(3) = 0 [pid 734] symlink("/dev/binderfs", "./binderfs") = 0 [pid 734] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 734] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 732] <... bpf resumed>) = 7 [pid 733] <... bpf resumed>) = 4 [pid 732] exit_group(0 [pid 731] <... bpf resumed>) = 7 [pid 730] <... bpf resumed>) = 7 [pid 733] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 732] <... exit_group resumed>) = ? [pid 734] <... bpf resumed>) = 4 [pid 733] <... bpf resumed>) = 5 [pid 732] +++ exited with 0 +++ [pid 731] exit_group(0 [pid 730] exit_group(0 [pid 731] <... exit_group resumed>) = ? [pid 730] <... exit_group resumed>) = ? [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=732, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 733] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 293] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 733] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 734] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./84/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./84") = 0 [pid 293] mkdir("./85", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 735 ./strace-static-x86_64: Process 735 attached [pid 735] set_robust_list(0x555555cf9760, 24) = 0 [pid 735] chdir("./85" [pid 733] <... bpf resumed>) = 6 [pid 734] <... bpf resumed>) = 5 [pid 735] <... chdir resumed>) = 0 [pid 735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 735] setpgid(0, 0) = 0 [pid 735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 733] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 735] write(3, "1000", 4) = 4 [pid 735] close(3) = 0 [pid 735] symlink("/dev/binderfs", "./binderfs") = 0 [pid 734] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 735] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 734] <... bpf resumed>) = 0 [pid 735] <... bpf resumed>) = 3 [pid 734] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 735] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 734] <... bpf resumed>) = 6 [pid 734] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 731] +++ exited with 0 +++ [pid 730] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=730, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 296] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... openat resumed>) = 3 [pid 296] getdents64(3, [pid 295] newfstatat(3, "", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] getdents64(3, [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] newfstatat(AT_FDCWD, "./84/binderfs", [pid 295] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] unlink("./84/binderfs" [pid 295] newfstatat(AT_FDCWD, "./86/binderfs", [pid 296] <... unlink resumed>) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] getdents64(3, [pid 295] unlink("./86/binderfs" [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... unlink resumed>) = 0 [pid 296] close(3 [pid 295] getdents64(3, [pid 296] <... close resumed>) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] rmdir("./84" [pid 295] close(3 [pid 296] <... rmdir resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 296] mkdir("./85", 0777 [pid 295] rmdir("./86" [pid 296] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 736 attached [pid 295] <... rmdir resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 736 [pid 736] set_robust_list(0x555555cf9760, 24) = 0 [pid 736] chdir("./85" [pid 295] mkdir("./87", 0777 [pid 736] <... chdir resumed>) = 0 [pid 736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 736] setpgid(0, 0) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 736] <... openat resumed>) = 3 [pid 736] write(3, "1000", 4) = 4 [pid 736] close(3 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 737 [pid 736] <... close resumed>) = 0 [pid 736] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 737 attached ) = 0 [pid 736] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 737] set_robust_list(0x555555cf9760, 24 [pid 736] <... bpf resumed>) = 3 [pid 737] <... set_robust_list resumed>) = 0 [pid 736] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 737] chdir("./87") = 0 [pid 737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 735] <... bpf resumed>) = 4 [pid 734] <... bpf resumed>) = 7 [pid 733] <... bpf resumed>) = 7 [pid 737] setpgid(0, 0 [pid 736] <... bpf resumed>) = 4 [pid 735] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 734] exit_group(0 [pid 735] <... bpf resumed>) = 5 [pid 734] <... exit_group resumed>) = ? [pid 733] exit_group(0 [pid 737] <... setpgid resumed>) = 0 [pid 736] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 735] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 733] <... exit_group resumed>) = ? [pid 737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 736] <... bpf resumed>) = 5 [pid 735] <... bpf resumed>) = 0 [pid 734] +++ exited with 0 +++ [pid 733] +++ exited with 0 +++ [pid 737] <... openat resumed>) = 3 [pid 736] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 735] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=734, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 737] write(3, "1000", 4 [pid 736] <... bpf resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=733, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 737] <... write resumed>) = 4 [pid 736] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 737] close(3 [pid 736] <... bpf resumed>) = 6 [pid 735] <... bpf resumed>) = 6 [pid 294] <... restart_syscall resumed>) = 0 [pid 737] <... close resumed>) = 0 [pid 736] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 737] symlink("/dev/binderfs", "./binderfs" [pid 735] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 737] <... symlink resumed>) = 0 [pid 294] umount2("./82", MNT_FORCE|UMOUNT_NOFOLLOW [pid 737] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 737] <... bpf resumed>) = 3 [pid 294] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 737] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 294] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 292] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] getdents64(3, [pid 292] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... openat resumed>) = 3 [pid 294] umount2("./82/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] newfstatat(3, "", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(AT_FDCWD, "./82/binderfs", [pid 292] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] unlink("./82/binderfs" [pid 292] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... unlink resumed>) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] getdents64(3, [pid 292] newfstatat(AT_FDCWD, "./83/binderfs", [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] close(3 [pid 292] unlink("./83/binderfs" [pid 294] <... close resumed>) = 0 [pid 292] <... unlink resumed>) = 0 [pid 294] rmdir("./82" [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 292] close(3 [pid 294] mkdir("./83", 0777 [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./83" [pid 294] <... mkdir resumed>) = 0 [pid 292] <... rmdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] mkdir("./84", 0777./strace-static-x86_64: Process 738 attached ) = 0 [pid 738] set_robust_list(0x555555cf9760, 24 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 738 [pid 738] <... set_robust_list resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 738] chdir("./83"./strace-static-x86_64: Process 739 attached ) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 739 [pid 739] set_robust_list(0x555555cf9760, 24 [pid 738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 739] <... set_robust_list resumed>) = 0 [pid 738] setpgid(0, 0) = 0 [pid 739] chdir("./84" [pid 738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 739] <... chdir resumed>) = 0 [pid 739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 738] <... openat resumed>) = 3 [pid 739] <... prctl resumed>) = 0 [pid 738] write(3, "1000", 4 [pid 739] setpgid(0, 0 [pid 738] <... write resumed>) = 4 [pid 739] <... setpgid resumed>) = 0 [pid 738] close(3 [pid 739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 738] <... close resumed>) = 0 [pid 738] symlink("/dev/binderfs", "./binderfs" [pid 739] <... openat resumed>) = 3 [pid 739] write(3, "1000", 4 [pid 738] <... symlink resumed>) = 0 [pid 739] <... write resumed>) = 4 [pid 738] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 739] close(3) = 0 [pid 739] symlink("/dev/binderfs", "./binderfs") = 0 [pid 739] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 738] <... bpf resumed>) = 3 [pid 739] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 738] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 736] <... bpf resumed>) = 7 [pid 739] <... bpf resumed>) = 4 [pid 737] <... bpf resumed>) = 4 [pid 736] exit_group(0 [pid 735] <... bpf resumed>) = 7 [pid 739] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 738] <... bpf resumed>) = 4 [pid 737] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 736] <... exit_group resumed>) = ? [pid 739] <... bpf resumed>) = 5 [pid 738] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 737] <... bpf resumed>) = 5 [pid 735] exit_group(0 [pid 738] <... bpf resumed>) = 5 [pid 735] <... exit_group resumed>) = ? [pid 737] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 739] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 739] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 738] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 737] <... bpf resumed>) = 0 [pid 738] <... bpf resumed>) = 0 [pid 737] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 738] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 739] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 737] <... bpf resumed>) = 6 [pid 738] <... bpf resumed>) = 6 [pid 738] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 737] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 736] +++ exited with 0 +++ [pid 735] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=736, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... openat resumed>) = 3 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(3, "", [pid 293] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... openat resumed>) = 3 [pid 296] getdents64(3, [pid 293] newfstatat(3, "", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 296] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] newfstatat(AT_FDCWD, "./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] unlink("./85/binderfs" [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... unlink resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./85/binderfs", [pid 296] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] unlink("./85/binderfs" [pid 296] close(3 [pid 293] <... unlink resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 293] getdents64(3, [pid 296] rmdir("./85" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./85" [pid 296] <... rmdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 296] mkdir("./86", 0777 [pid 293] mkdir("./86", 0777 [pid 296] <... mkdir resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 741 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 740 ./strace-static-x86_64: Process 741 attached [pid 741] set_robust_list(0x555555cf9760, 24) = 0 [pid 741] chdir("./86"./strace-static-x86_64: Process 740 attached ) = 0 [pid 740] set_robust_list(0x555555cf9760, 24) = 0 [pid 740] chdir("./86" [pid 741] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 740] <... chdir resumed>) = 0 [pid 741] <... prctl resumed>) = 0 [pid 741] setpgid(0, 0 [pid 740] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 741] <... setpgid resumed>) = 0 [pid 740] <... prctl resumed>) = 0 [pid 741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 740] setpgid(0, 0) = 0 [pid 741] <... openat resumed>) = 3 [pid 740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 741] write(3, "1000", 4 [pid 740] <... openat resumed>) = 3 [pid 741] <... write resumed>) = 4 [pid 740] write(3, "1000", 4 [pid 741] close(3 [pid 740] <... write resumed>) = 4 [pid 741] <... close resumed>) = 0 [pid 740] close(3 [pid 741] symlink("/dev/binderfs", "./binderfs" [pid 740] <... close resumed>) = 0 [pid 741] <... symlink resumed>) = 0 [pid 740] symlink("/dev/binderfs", "./binderfs") = 0 [pid 741] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 740] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 741] <... bpf resumed>) = 3 [pid 740] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 741] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 739] <... bpf resumed>) = 7 [pid 739] exit_group(0 [pid 738] <... bpf resumed>) = 7 [pid 737] <... bpf resumed>) = 7 [pid 739] <... exit_group resumed>) = ? [pid 739] +++ exited with 0 +++ [pid 738] exit_group(0 [pid 737] exit_group(0 [pid 738] <... exit_group resumed>) = ? [pid 737] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=739, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 740] <... bpf resumed>) = 4 [pid 740] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 741] <... bpf resumed>) = 4 [pid 741] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 740] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 741] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 740] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 741] <... bpf resumed>) = 0 [pid 740] <... bpf resumed>) = 6 [pid 741] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 740] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 741] <... bpf resumed>) = 6 [pid 292] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 741] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... openat resumed>) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./84/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./84") = 0 [pid 292] mkdir("./85", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 743 ./strace-static-x86_64: Process 743 attached [pid 743] set_robust_list(0x555555cf9760, 24) = 0 [pid 743] chdir("./85") = 0 [pid 743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 743] setpgid(0, 0) = 0 [pid 743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 743] write(3, "1000", 4) = 4 [pid 743] close(3) = 0 [pid 743] symlink("/dev/binderfs", "./binderfs") = 0 [pid 743] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 743] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 738] +++ exited with 0 +++ [pid 737] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=738, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] umount2("./83", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 294] newfstatat(3, "", [pid 295] newfstatat(3, "", [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, [pid 295] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./83/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./83/binderfs", [pid 295] newfstatat(AT_FDCWD, "./87/binderfs", [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./83/binderfs" [pid 295] unlink("./87/binderfs" [pid 294] <... unlink resumed>) = 0 [pid 295] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 295] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 295] close(3 [pid 294] <... close resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 295] rmdir("./87" [pid 294] rmdir("./83" [pid 295] <... rmdir resumed>) = 0 [pid 295] mkdir("./88", 0777 [pid 294] <... rmdir resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 294] mkdir("./84", 0777 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 744 ./strace-static-x86_64: Process 744 attached [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 745 [pid 744] set_robust_list(0x555555cf9760, 24) = 0 [pid 744] chdir("./88"./strace-static-x86_64: Process 745 attached ) = 0 [pid 744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 745] set_robust_list(0x555555cf9760, 24 [pid 744] <... prctl resumed>) = 0 [pid 745] <... set_robust_list resumed>) = 0 [pid 744] setpgid(0, 0) = 0 [pid 745] chdir("./84" [pid 744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 745] <... chdir resumed>) = 0 [pid 744] write(3, "1000", 4 [pid 745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 744] <... write resumed>) = 4 [pid 745] <... prctl resumed>) = 0 [pid 744] close(3) = 0 [pid 745] setpgid(0, 0 [pid 744] symlink("/dev/binderfs", "./binderfs" [pid 745] <... setpgid resumed>) = 0 [pid 744] <... symlink resumed>) = 0 [pid 744] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 744] <... bpf resumed>) = 3 [pid 745] <... openat resumed>) = 3 [pid 744] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 745] write(3, "1000", 4) = 4 [pid 745] close(3) = 0 [pid 745] symlink("/dev/binderfs", "./binderfs") = 0 [pid 745] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 745] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 740] <... bpf resumed>) = 7 [pid 743] <... bpf resumed>) = 4 [pid 740] exit_group(0 [pid 741] <... bpf resumed>) = 7 [pid 745] <... bpf resumed>) = 4 [pid 744] <... bpf resumed>) = 4 [pid 740] <... exit_group resumed>) = ? [pid 741] exit_group(0 [pid 743] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 743] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 743] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 745] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 744] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 741] <... exit_group resumed>) = ? [pid 744] <... bpf resumed>) = 5 [pid 744] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 743] <... bpf resumed>) = 6 [pid 745] <... bpf resumed>) = 5 [pid 744] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 745] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 743] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 745] <... bpf resumed>) = 0 [pid 744] <... bpf resumed>) = 6 [pid 745] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 744] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 745] <... bpf resumed>) = 6 [pid 745] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 740] +++ exited with 0 +++ [pid 741] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=741, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 296] <... restart_syscall resumed>) = 0 [pid 296] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... restart_syscall resumed>) = 0 [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, [pid 293] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... openat resumed>) = 3 [pid 296] newfstatat(AT_FDCWD, "./86/binderfs", [pid 293] newfstatat(3, "", [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./86/binderfs" [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 296] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] close(3 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./86/binderfs", [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./86" [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./86/binderfs") = 0 [pid 296] <... rmdir resumed>) = 0 [pid 293] getdents64(3, [pid 296] mkdir("./87", 0777 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./86" [pid 296] <... mkdir resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] mkdir("./87", 0777) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 746 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 747 attached , child_tidptr=0x555555cf9750) = 747 [pid 747] set_robust_list(0x555555cf9760, 24./strace-static-x86_64: Process 746 attached [pid 746] set_robust_list(0x555555cf9760, 24) = 0 [pid 747] <... set_robust_list resumed>) = 0 [pid 746] chdir("./87") = 0 [pid 746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 746] setpgid(0, 0) = 0 [pid 747] chdir("./87" [pid 746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 747] <... chdir resumed>) = 0 [pid 746] <... openat resumed>) = 3 [pid 746] write(3, "1000", 4 [pid 747] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 746] <... write resumed>) = 4 [pid 746] close(3) = 0 [pid 746] symlink("/dev/binderfs", "./binderfs" [pid 747] <... prctl resumed>) = 0 [pid 747] setpgid(0, 0) = 0 [pid 746] <... symlink resumed>) = 0 [pid 746] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 747] write(3, "1000", 4) = 4 [pid 746] <... bpf resumed>) = 3 [pid 746] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 747] close(3) = 0 [pid 747] symlink("/dev/binderfs", "./binderfs") = 0 [pid 747] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 747] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 743] <... bpf resumed>) = 7 [pid 746] <... bpf resumed>) = 4 [pid 745] <... bpf resumed>) = 7 [pid 744] <... bpf resumed>) = 7 [pid 743] exit_group(0 [pid 746] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 745] exit_group(0 [pid 744] exit_group(0 [pid 743] <... exit_group resumed>) = ? [pid 745] <... exit_group resumed>) = ? [pid 744] <... exit_group resumed>) = ? [pid 746] <... bpf resumed>) = 5 [pid 746] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 746] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 743] +++ exited with 0 +++ [pid 746] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=743, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./85/binderfs") = 0 [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./85") = 0 [pid 292] mkdir("./86", 0777) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 748 ./strace-static-x86_64: Process 748 attached [pid 748] set_robust_list(0x555555cf9760, 24) = 0 [pid 748] chdir("./86") = 0 [pid 748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 748] setpgid(0, 0) = 0 [pid 748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 748] write(3, "1000", 4) = 4 [pid 748] close(3) = 0 [pid 748] symlink("/dev/binderfs", "./binderfs") = 0 [pid 748] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 748] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 747] <... bpf resumed>) = 4 [pid 746] <... bpf resumed>) = 7 [pid 744] +++ exited with 0 +++ [pid 747] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 746] exit_group(0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=744, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 747] <... bpf resumed>) = 5 [pid 746] <... exit_group resumed>) = ? [pid 747] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 747] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 295] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 747] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 295] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 295] newfstatat(AT_FDCWD, "./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./88/binderfs") = 0 [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] close(3) = 0 [pid 295] rmdir("./88") = 0 [pid 295] mkdir("./89", 0777) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 749 ./strace-static-x86_64: Process 749 attached [pid 749] set_robust_list(0x555555cf9760, 24) = 0 [pid 749] chdir("./89") = 0 [pid 749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 749] setpgid(0, 0) = 0 [pid 749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 749] write(3, "1000", 4) = 4 [pid 749] close(3) = 0 [pid 749] symlink("/dev/binderfs", "./binderfs") = 0 [pid 749] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 749] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 748] <... bpf resumed>) = 4 [pid 746] +++ exited with 0 +++ [pid 745] +++ exited with 0 +++ [pid 748] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=746, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 748] <... bpf resumed>) = 5 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=745, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 748] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 748] <... bpf resumed>) = 0 [pid 296] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW [pid 748] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 294] <... restart_syscall resumed>) = 0 [pid 748] <... bpf resumed>) = 6 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 748] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] umount2("./84", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] getdents64(3, [pid 294] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... openat resumed>) = 3 [pid 296] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] newfstatat(3, "", [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] newfstatat(AT_FDCWD, "./87/binderfs", [pid 294] getdents64(3, [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] unlink("./87/binderfs" [pid 294] umount2("./84/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... unlink resumed>) = 0 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] getdents64(3, [pid 294] newfstatat(AT_FDCWD, "./84/binderfs", [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] close(3 [pid 294] unlink("./84/binderfs" [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./87" [pid 294] <... unlink resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 294] getdents64(3, [pid 296] mkdir("./88", 0777 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... close resumed>) = 0 [pid 294] rmdir("./84" [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 750 ./strace-static-x86_64: Process 750 attached [pid 750] set_robust_list(0x555555cf9760, 24 [pid 294] <... rmdir resumed>) = 0 [pid 294] mkdir("./85", 0777 [pid 750] <... set_robust_list resumed>) = 0 [pid 750] chdir("./88") = 0 [pid 750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 294] <... mkdir resumed>) = 0 [pid 750] setpgid(0, 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 750] <... setpgid resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 751 [pid 750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 751 attached ) = 3 [pid 750] write(3, "1000", 4 [pid 751] set_robust_list(0x555555cf9760, 24 [pid 750] <... write resumed>) = 4 [pid 750] close(3 [pid 751] <... set_robust_list resumed>) = 0 [pid 750] <... close resumed>) = 0 [pid 750] symlink("/dev/binderfs", "./binderfs") = 0 [pid 751] chdir("./85" [pid 750] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 751] <... chdir resumed>) = 0 [pid 750] <... bpf resumed>) = 3 [pid 750] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 751] setpgid(0, 0) = 0 [pid 751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 751] write(3, "1000", 4) = 4 [pid 751] close(3) = 0 [pid 751] symlink("/dev/binderfs", "./binderfs") = 0 [pid 751] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 751] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 747] <... bpf resumed>) = 7 [pid 751] <... bpf resumed>) = 4 [pid 750] <... bpf resumed>) = 4 [pid 749] <... bpf resumed>) = 4 [pid 748] <... bpf resumed>) = 7 [pid 747] exit_group(0 [pid 750] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 749] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 748] exit_group(0 [pid 747] <... exit_group resumed>) = ? [pid 751] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 750] <... bpf resumed>) = 5 [pid 749] <... bpf resumed>) = 5 [pid 748] <... exit_group resumed>) = ? [pid 751] <... bpf resumed>) = 5 [pid 750] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 749] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 751] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 750] <... bpf resumed>) = 0 [pid 750] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 749] <... bpf resumed>) = 0 [pid 751] <... bpf resumed>) = 0 [pid 750] <... bpf resumed>) = 6 [pid 751] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 749] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 750] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 749] <... bpf resumed>) = 6 [pid 751] <... bpf resumed>) = 6 [pid 749] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 751] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 747] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=747, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./87/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./87") = 0 [pid 293] mkdir("./88", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 752 attached [pid 752] set_robust_list(0x555555cf9760, 24 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 752 [pid 752] <... set_robust_list resumed>) = 0 [pid 752] chdir("./88") = 0 [pid 752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 752] setpgid(0, 0) = 0 [pid 752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 752] write(3, "1000", 4) = 4 [pid 752] close(3) = 0 [pid 752] symlink("/dev/binderfs", "./binderfs") = 0 [pid 752] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 752] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 750] <... bpf resumed>) = 7 [pid 749] <... bpf resumed>) = 7 [pid 752] <... bpf resumed>) = 4 [pid 751] <... bpf resumed>) = 7 [pid 750] exit_group(0 [pid 748] +++ exited with 0 +++ [pid 752] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 5 [pid 751] exit_group(0 [pid 750] <... exit_group resumed>) = ? [pid 749] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=748, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 752] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 751] <... exit_group resumed>) = ? [pid 752] <... bpf resumed>) = 0 [pid 752] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 750] +++ exited with 0 +++ [pid 749] <... exit_group resumed>) = ? [pid 752] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=750, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, [pid 296] <... restart_syscall resumed>) = 0 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./86/binderfs", [pid 296] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... openat resumed>) = 3 [pid 296] newfstatat(3, "", [pid 292] unlink("./86/binderfs" [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... unlink resumed>) = 0 [pid 296] getdents64(3, [pid 292] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] close(3 [pid 296] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./86" [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... rmdir resumed>) = 0 [pid 296] newfstatat(AT_FDCWD, "./88/binderfs", [pid 292] mkdir("./87", 0777 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 296] unlink("./88/binderfs" [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... unlink resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 753 ./strace-static-x86_64: Process 753 attached [pid 296] getdents64(3, [pid 753] set_robust_list(0x555555cf9760, 24 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 753] <... set_robust_list resumed>) = 0 [pid 296] close(3 [pid 753] chdir("./87" [pid 296] <... close resumed>) = 0 [pid 753] <... chdir resumed>) = 0 [pid 296] rmdir("./88" [pid 753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 753] setpgid(0, 0) = 0 [pid 753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 296] <... rmdir resumed>) = 0 [pid 296] mkdir("./89", 0777 [pid 753] <... openat resumed>) = 3 [pid 753] write(3, "1000", 4 [pid 296] <... mkdir resumed>) = 0 [pid 753] <... write resumed>) = 4 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 753] close(3) = 0 [pid 753] symlink("/dev/binderfs", "./binderfs") = 0 [pid 753] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144./strace-static-x86_64: Process 754 attached [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 754 [pid 754] set_robust_list(0x555555cf9760, 24 [pid 753] <... bpf resumed>) = 3 [pid 753] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 754] <... set_robust_list resumed>) = 0 [pid 754] chdir("./89") = 0 [pid 754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 754] setpgid(0, 0) = 0 [pid 754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 754] write(3, "1000", 4) = 4 [pid 754] close(3) = 0 [pid 754] symlink("/dev/binderfs", "./binderfs") = 0 [pid 754] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 754] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 752] <... bpf resumed>) = 7 [pid 751] +++ exited with 0 +++ [pid 752] exit_group(0) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=751, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 294] umount2("./85", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./85/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./85/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./85") = 0 [pid 294] mkdir("./86", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 755 attached [pid 755] set_robust_list(0x555555cf9760, 24) = 0 [pid 755] chdir("./86") = 0 [pid 755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 755] setpgid(0, 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 755 [pid 755] <... setpgid resumed>) = 0 [pid 755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 755] write(3, "1000", 4) = 4 [pid 755] close(3) = 0 [pid 755] symlink("/dev/binderfs", "./binderfs") = 0 [pid 755] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 755] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 753] <... bpf resumed>) = 4 [pid 749] +++ exited with 0 +++ [pid 752] +++ exited with 0 +++ [pid 754] <... bpf resumed>) = 4 [pid 755] <... bpf resumed>) = 4 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 755] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 295] <... restart_syscall resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 755] <... bpf resumed>) = 5 [pid 755] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 295] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 755] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 753] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 293] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 755] <... bpf resumed>) = 6 [pid 754] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 753] <... bpf resumed>) = 5 [pid 295] newfstatat(3, "", [pid 293] <... openat resumed>) = 3 [pid 753] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 753] <... bpf resumed>) = 0 [pid 293] newfstatat(3, "", [pid 753] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 295] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 755] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] getdents64(3, [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 295] newfstatat(AT_FDCWD, "./89/binderfs", [pid 293] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] unlink("./89/binderfs" [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... unlink resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./88/binderfs", [pid 295] getdents64(3, [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] unlink("./88/binderfs" [pid 295] close(3 [pid 293] <... unlink resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 293] getdents64(3, [pid 295] rmdir("./89" [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] <... rmdir resumed>) = 0 [pid 293] close(3 [pid 295] mkdir("./90", 0777 [pid 293] <... close resumed>) = 0 [pid 295] <... mkdir resumed>) = 0 [pid 293] rmdir("./88" [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./89", 0777 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 756 ./strace-static-x86_64: Process 756 attached [pid 756] set_robust_list(0x555555cf9760, 24) = 0 [pid 756] chdir("./90" [pid 293] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 756] <... chdir resumed>) = 0 [pid 756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 756] setpgid(0, 0) = 0 [pid 756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 757 [pid 756] write(3, "1000", 4) = 4 [pid 756] close(3) = 0 [pid 753] <... bpf resumed>) = 6 [pid 756] symlink("/dev/binderfs", "./binderfs") = 0 [pid 756] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 753] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 756] <... bpf resumed>) = 3 [pid 754] <... bpf resumed>) = 5 [pid 756] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 757 attached [pid 754] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 757] set_robust_list(0x555555cf9760, 24) = 0 [pid 757] chdir("./89") = 0 [pid 757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 754] <... bpf resumed>) = 0 [pid 757] <... prctl resumed>) = 0 [pid 757] setpgid(0, 0) = 0 [pid 757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 754] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 757] <... openat resumed>) = 3 [pid 757] write(3, "1000", 4) = 4 [pid 757] close(3) = 0 [pid 757] symlink("/dev/binderfs", "./binderfs") = 0 [pid 757] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 754] <... bpf resumed>) = 6 [pid 757] <... bpf resumed>) = 3 [pid 754] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 757] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 755] <... bpf resumed>) = 7 [pid 756] <... bpf resumed>) = 4 [pid 755] exit_group(0 [pid 753] <... bpf resumed>) = 7 [pid 757] <... bpf resumed>) = 4 [pid 756] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 755] <... exit_group resumed>) = ? [pid 754] <... bpf resumed>) = 7 [pid 757] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 756] <... bpf resumed>) = 5 [pid 755] +++ exited with 0 +++ [pid 753] exit_group(0 [pid 757] <... bpf resumed>) = 5 [pid 756] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 754] exit_group(0 [pid 753] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=755, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 757] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 756] <... bpf resumed>) = 0 [pid 757] <... bpf resumed>) = 0 [pid 756] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 757] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 756] <... bpf resumed>) = 6 [pid 754] <... exit_group resumed>) = ? [pid 757] <... bpf resumed>) = 6 [pid 756] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 757] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] umount2("./86", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] umount2("./86/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 294] newfstatat(AT_FDCWD, "./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] unlink("./86/binderfs") = 0 [pid 294] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3) = 0 [pid 294] rmdir("./86") = 0 [pid 294] mkdir("./87", 0777) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 758 ./strace-static-x86_64: Process 758 attached [pid 758] set_robust_list(0x555555cf9760, 24) = 0 [pid 758] chdir("./87") = 0 [pid 758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 758] setpgid(0, 0) = 0 [pid 758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 758] write(3, "1000", 4) = 4 [pid 758] close(3) = 0 [pid 758] symlink("/dev/binderfs", "./binderfs") = 0 [pid 758] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 758] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 757] <... bpf resumed>) = 7 [pid 756] <... bpf resumed>) = 7 [pid 753] +++ exited with 0 +++ [pid 757] exit_group(0 [pid 756] exit_group(0 [pid 754] +++ exited with 0 +++ [pid 758] <... bpf resumed>) = 4 [pid 757] <... exit_group resumed>) = ? [pid 756] <... exit_group resumed>) = ? [pid 758] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=754, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=753, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 758] <... bpf resumed>) = 5 [pid 296] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW [pid 758] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 758] <... bpf resumed>) = 0 [pid 292] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 758] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 296] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 296] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 296] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./89/binderfs", [pid 292] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./89/binderfs" [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... unlink resumed>) = 0 [pid 292] newfstatat(AT_FDCWD, "./87/binderfs", [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] close(3 [pid 292] unlink("./87/binderfs" [pid 296] <... close resumed>) = 0 [pid 296] rmdir("./89" [pid 292] <... unlink resumed>) = 0 [pid 296] <... rmdir resumed>) = 0 [pid 292] getdents64(3, [pid 296] mkdir("./90", 0777 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 292] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./87" [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 759 ./strace-static-x86_64: Process 759 attached [pid 759] set_robust_list(0x555555cf9760, 24) = 0 [pid 759] chdir("./90" [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./88", 0777 [pid 759] <... chdir resumed>) = 0 [pid 759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 759] setpgid(0, 0) = 0 [pid 759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] <... mkdir resumed>) = 0 [pid 759] <... openat resumed>) = 3 [pid 758] <... bpf resumed>) = 6 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 759] write(3, "1000", 4) = 4 [pid 759] close(3) = 0 [pid 759] symlink("/dev/binderfs", "./binderfs") = 0 [pid 758] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 760 [pid 759] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 759] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16./strace-static-x86_64: Process 760 attached [pid 760] set_robust_list(0x555555cf9760, 24) = 0 [pid 760] chdir("./88") = 0 [pid 760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 760] setpgid(0, 0) = 0 [pid 760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 760] write(3, "1000", 4) = 4 [pid 760] close(3) = 0 [pid 760] symlink("/dev/binderfs", "./binderfs") = 0 [pid 760] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 760] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 757] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=757, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./89/binderfs") = 0 [pid 293] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./89") = 0 [pid 293] mkdir("./90", 0777) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cf9750) = 761 ./strace-static-x86_64: Process 761 attached [pid 761] set_robust_list(0x555555cf9760, 24) = 0 [pid 761] chdir("./90") = 0 [pid 761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 761] setpgid(0, 0) = 0 [pid 761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 761] write(3, "1000", 4) = 4 [pid 761] close(3) = 0 [pid 761] symlink("/dev/binderfs", "./binderfs") = 0 [pid 761] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 761] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 756] +++ exited with 0 +++ [pid 758] <... bpf resumed>) = 7 [pid 759] <... bpf resumed>) = 4 [pid 761] <... bpf resumed>) = 4 [pid 760] <... bpf resumed>) = 4 [pid 759] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 758] exit_group(0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=756, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 761] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 760] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 758] <... exit_group resumed>) = ? [pid 761] <... bpf resumed>) = 5 [pid 759] <... bpf resumed>) = 5 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 760] <... bpf resumed>) = 5 [pid 760] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4) = 0 [pid 758] +++ exited with 0 +++ [pid 761] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 760] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 759] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 295] <... restart_syscall resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=758, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 761] <... bpf resumed>) = 0 [pid 760] <... bpf resumed>) = 6 [pid 759] <... bpf resumed>) = 0 [pid 760] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 759] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 761] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 759] <... bpf resumed>) = 6 [pid 294] umount2("./87", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW [pid 759] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 294] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 294] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] getdents64(3, [pid 294] getdents64(3, [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 761] <... bpf resumed>) = 6 [pid 295] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 761] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./87/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] newfstatat(AT_FDCWD, "./90/binderfs", [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] newfstatat(AT_FDCWD, "./87/binderfs", [pid 295] unlink("./90/binderfs" [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 295] <... unlink resumed>) = 0 [pid 294] unlink("./87/binderfs" [pid 295] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] <... unlink resumed>) = 0 [pid 295] close(3) = 0 [pid 294] getdents64(3, [pid 295] rmdir("./90" [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 294] close(3 [pid 295] <... rmdir resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 295] mkdir("./91", 0777 [pid 294] rmdir("./87" [pid 295] <... mkdir resumed>) = 0 [pid 294] <... rmdir resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] mkdir("./88", 0777./strace-static-x86_64: Process 762 attached ) = 0 [pid 762] set_robust_list(0x555555cf9760, 24 [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 762 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 763 attached [pid 762] <... set_robust_list resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 763 [pid 763] set_robust_list(0x555555cf9760, 24 [pid 762] chdir("./91" [pid 763] <... set_robust_list resumed>) = 0 [pid 763] chdir("./88" [pid 762] <... chdir resumed>) = 0 [pid 763] <... chdir resumed>) = 0 [pid 763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 763] setpgid(0, 0) = 0 [pid 763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 762] setpgid(0, 0) = 0 [pid 763] <... openat resumed>) = 3 [pid 762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 763] write(3, "1000", 4) = 4 [pid 762] <... openat resumed>) = 3 [pid 763] close(3) = 0 [pid 762] write(3, "1000", 4 [pid 763] symlink("/dev/binderfs", "./binderfs" [pid 762] <... write resumed>) = 4 [pid 763] <... symlink resumed>) = 0 [pid 762] close(3 [pid 763] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 762] <... close resumed>) = 0 [pid 762] symlink("/dev/binderfs", "./binderfs" [pid 763] <... bpf resumed>) = 3 [pid 763] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 762] <... symlink resumed>) = 0 [pid 762] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 762] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 763] <... bpf resumed>) = 4 [pid 762] <... bpf resumed>) = 4 [pid 761] <... bpf resumed>) = 7 [pid 760] <... bpf resumed>) = 7 [pid 759] <... bpf resumed>) = 7 [pid 761] exit_group(0 [pid 759] exit_group(0 [pid 760] exit_group(0 [pid 762] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 761] <... exit_group resumed>) = ? [pid 760] <... exit_group resumed>) = ? [pid 759] <... exit_group resumed>) = ? [pid 759] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=759, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 762] <... bpf resumed>) = 5 [pid 296] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW [pid 762] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 762] <... bpf resumed>) = 0 [pid 296] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 762] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 296] newfstatat(AT_FDCWD, "./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] unlink("./90/binderfs") = 0 [pid 296] getdents64(3, 0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] close(3) = 0 [pid 296] rmdir("./90") = 0 [pid 296] mkdir("./91", 0777) = 0 [pid 762] <... bpf resumed>) = 6 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 762] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 764 ./strace-static-x86_64: Process 764 attached [pid 764] set_robust_list(0x555555cf9760, 24 [pid 763] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 764] <... set_robust_list resumed>) = 0 [pid 763] <... bpf resumed>) = 5 [pid 764] chdir("./91" [pid 763] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 764] <... chdir resumed>) = 0 [pid 763] <... bpf resumed>) = 0 [pid 764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 763] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 764] <... prctl resumed>) = 0 [pid 763] <... bpf resumed>) = 6 [pid 764] setpgid(0, 0) = 0 [pid 763] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 764] write(3, "1000", 4) = 4 [pid 764] close(3) = 0 [pid 764] symlink("/dev/binderfs", "./binderfs") = 0 [pid 764] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 764] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 761] +++ exited with 0 +++ [pid 760] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=760, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./90", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 292] newfstatat(3, "", [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, [pid 292] getdents64(3, [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] umount2("./90/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./90/binderfs", [pid 292] newfstatat(AT_FDCWD, "./88/binderfs", [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./90/binderfs" [pid 292] unlink("./88/binderfs" [pid 293] <... unlink resumed>) = 0 [pid 293] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 293] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 293] <... close resumed>) = 0 [pid 292] close(3 [pid 293] rmdir("./90" [pid 292] <... close resumed>) = 0 [pid 293] <... rmdir resumed>) = 0 [pid 292] rmdir("./88" [pid 293] mkdir("./91", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 293] <... mkdir resumed>) = 0 [pid 292] mkdir("./89", 0777 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... mkdir resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 765 ./strace-static-x86_64: Process 765 attached [pid 765] set_robust_list(0x555555cf9760, 24) = 0 [pid 765] chdir("./91" [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 766 [pid 765] <... chdir resumed>) = 0 [pid 765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 765] setpgid(0, 0) = 0 [pid 765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 766 attached [pid 766] set_robust_list(0x555555cf9760, 24 [pid 765] <... openat resumed>) = 3 [pid 766] <... set_robust_list resumed>) = 0 [pid 765] write(3, "1000", 4 [pid 766] chdir("./89" [pid 765] <... write resumed>) = 4 [pid 765] close(3 [pid 766] <... chdir resumed>) = 0 [pid 765] <... close resumed>) = 0 [pid 766] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 765] symlink("/dev/binderfs", "./binderfs" [pid 766] <... prctl resumed>) = 0 [pid 765] <... symlink resumed>) = 0 [pid 766] setpgid(0, 0) = 0 [pid 765] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 765] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 766] <... openat resumed>) = 3 [pid 766] write(3, "1000", 4) = 4 [pid 766] close(3) = 0 [pid 766] symlink("/dev/binderfs", "./binderfs") = 0 [pid 766] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 766] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 762] <... bpf resumed>) = 7 [pid 766] <... bpf resumed>) = 4 [pid 765] <... bpf resumed>) = 4 [pid 764] <... bpf resumed>) = 4 [pid 763] <... bpf resumed>) = 7 [pid 762] exit_group(0 [pid 765] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 764] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 762] <... exit_group resumed>) = ? [pid 766] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 765] <... bpf resumed>) = 5 [pid 764] <... bpf resumed>) = 5 [pid 763] exit_group(0 [pid 765] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 764] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 763] <... exit_group resumed>) = ? [pid 766] <... bpf resumed>) = 5 [pid 765] <... bpf resumed>) = 0 [pid 764] <... bpf resumed>) = 0 [pid 764] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 6 [pid 764] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 766] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 765] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 766] <... bpf resumed>) = 0 [pid 766] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 765] <... bpf resumed>) = 6 [pid 765] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 766] <... bpf resumed>) = 6 [pid 766] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 764] <... bpf resumed>) = 7 [pid 766] <... bpf resumed>) = 7 [pid 765] <... bpf resumed>) = 7 [pid 764] exit_group(0 [pid 763] +++ exited with 0 +++ [pid 762] +++ exited with 0 +++ [pid 765] exit_group(0 [pid 764] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=762, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=763, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 766] exit_group(0) = ? [pid 765] <... exit_group resumed>) = ? [pid 764] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] umount2("./88", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 294] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... openat resumed>) = 3 [pid 295] newfstatat(3, "", [pid 294] <... openat resumed>) = 3 [pid 296] <... restart_syscall resumed>) = 0 [pid 295] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] newfstatat(3, "", [pid 295] getdents64(3, [pid 294] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] getdents64(3, [pid 296] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] umount2("./88/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 296] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 295] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 294] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... openat resumed>) = 3 [pid 295] newfstatat(AT_FDCWD, "./91/binderfs", [pid 294] newfstatat(AT_FDCWD, "./88/binderfs", [pid 296] newfstatat(3, "", [pid 295] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 294] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 296] getdents64(3, [pid 295] unlink("./91/binderfs" [pid 294] unlink("./88/binderfs" [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 294] <... unlink resumed>) = 0 [pid 296] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 295] <... unlink resumed>) = 0 [pid 294] getdents64(3, [pid 296] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 295] getdents64(3, [pid 294] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] newfstatat(AT_FDCWD, "./91/binderfs", [pid 295] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 296] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 294] close(3 [pid 296] unlink("./91/binderfs" [pid 295] close(3 [pid 294] <... close resumed>) = 0 [pid 296] <... unlink resumed>) = 0 [pid 294] rmdir("./88" [pid 296] getdents64(3, [pid 295] <... close resumed>) = 0 [pid 296] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 295] rmdir("./91" [pid 294] <... rmdir resumed>) = 0 [pid 296] close(3 [pid 295] <... rmdir resumed>) = 0 [pid 294] mkdir("./89", 0777 [pid 296] <... close resumed>) = 0 [pid 295] mkdir("./92", 0777 [pid 296] rmdir("./91") = 0 [pid 294] <... mkdir resumed>) = 0 [pid 296] mkdir("./92", 0777 [pid 295] <... mkdir resumed>) = 0 [pid 296] <... mkdir resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 768 attached ./strace-static-x86_64: Process 767 attached [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555cf9750) = 768 ./strace-static-x86_64: Process 769 attached [pid 768] set_robust_list(0x555555cf9760, 24 [pid 767] set_robust_list(0x555555cf9760, 24 [pid 294] <... clone resumed>, child_tidptr=0x555555cf9750) = 767 [pid 768] <... set_robust_list resumed>) = 0 [pid 767] <... set_robust_list resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x555555cf9750) = 769 [pid 769] set_robust_list(0x555555cf9760, 24 [pid 767] chdir("./89" [pid 769] <... set_robust_list resumed>) = 0 [pid 769] chdir("./92" [pid 767] <... chdir resumed>) = 0 [pid 769] <... chdir resumed>) = 0 [pid 767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 768] chdir("./92" [pid 767] <... prctl resumed>) = 0 [pid 769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 768] <... chdir resumed>) = 0 [pid 767] setpgid(0, 0 [pid 769] <... prctl resumed>) = 0 [pid 767] <... setpgid resumed>) = 0 [pid 768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 769] setpgid(0, 0 [pid 767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 769] <... setpgid resumed>) = 0 [pid 768] <... prctl resumed>) = 0 [pid 767] <... openat resumed>) = 3 [pid 769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 768] setpgid(0, 0 [pid 767] write(3, "1000", 4 [pid 768] <... setpgid resumed>) = 0 [pid 767] <... write resumed>) = 4 [pid 767] close(3 [pid 769] <... openat resumed>) = 3 [pid 768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 767] <... close resumed>) = 0 [pid 769] write(3, "1000", 4 [pid 767] symlink("/dev/binderfs", "./binderfs" [pid 769] <... write resumed>) = 4 [pid 768] <... openat resumed>) = 3 [pid 769] close(3) = 0 [pid 767] <... symlink resumed>) = 0 [pid 769] symlink("/dev/binderfs", "./binderfs" [pid 768] write(3, "1000", 4 [pid 767] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 769] <... symlink resumed>) = 0 [pid 768] <... write resumed>) = 4 [pid 768] close(3) = 0 [pid 768] symlink("/dev/binderfs", "./binderfs" [pid 767] <... bpf resumed>) = 3 [pid 769] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 768] <... symlink resumed>) = 0 [pid 767] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 768] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 769] <... bpf resumed>) = 3 [pid 769] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 768] <... bpf resumed>) = 3 [pid 768] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 766] +++ exited with 0 +++ [pid 765] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=766, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=765, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] umount2("./91", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] umount2("./89", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 292] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 293] <... openat resumed>) = 3 [pid 293] newfstatat(3, "", [pid 292] <... openat resumed>) = 3 [pid 293] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] newfstatat(3, "", [pid 293] getdents64(3, [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 292] getdents64(3, [pid 293] umount2("./91/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 3 entries */, 32768) = 80 [pid 293] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] umount2("./89/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] newfstatat(AT_FDCWD, "./91/binderfs", [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 293] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] newfstatat(AT_FDCWD, "./89/binderfs", [pid 293] unlink("./91/binderfs" [pid 292] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... unlink resumed>) = 0 [pid 292] unlink("./89/binderfs" [pid 293] getdents64(3, [pid 292] <... unlink resumed>) = 0 [pid 293] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] getdents64(3, [pid 293] close(3 [pid 292] <... getdents64 resumed>0x555555cfa7f0 /* 0 entries */, 32768) = 0 [pid 292] close(3 [pid 293] <... close resumed>) = 0 [pid 293] rmdir("./91" [pid 292] <... close resumed>) = 0 [pid 292] rmdir("./89" [pid 293] <... rmdir resumed>) = 0 [pid 293] mkdir("./92", 0777 [pid 292] <... rmdir resumed>) = 0 [pid 292] mkdir("./90", 0777 [pid 293] <... mkdir resumed>) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 770 attached [pid 770] set_robust_list(0x555555cf9760, 24) = 0 [pid 770] chdir("./92" [pid 293] <... clone resumed>, child_tidptr=0x555555cf9750) = 770 [pid 770] <... chdir resumed>) = 0 [pid 770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 770] setpgid(0, 0 [pid 292] <... clone resumed>, child_tidptr=0x555555cf9750) = 771 [pid 770] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 771 attached [pid 770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 771] set_robust_list(0x555555cf9760, 24 [pid 770] <... openat resumed>) = 3 [pid 770] write(3, "1000", 4) = 4 [pid 771] <... set_robust_list resumed>) = 0 [pid 770] close(3 [pid 771] chdir("./90" [pid 770] <... close resumed>) = 0 [pid 770] symlink("/dev/binderfs", "./binderfs" [pid 771] <... chdir resumed>) = 0 [pid 770] <... symlink resumed>) = 0 [pid 770] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 771] setpgid(0, 0) = 0 [pid 771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 771] write(3, "1000", 4) = 4 [pid 771] close(3) = 0 [pid 771] symlink("/dev/binderfs", "./binderfs" [pid 770] <... bpf resumed>) = 3 [pid 770] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 771] <... symlink resumed>) = 0 [pid 771] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x200002c0, license="GPL", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 771] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kmem_cache_free", prog_fd=3}}, 16 [pid 767] <... bpf resumed>) = 4 [pid 770] <... bpf resumed>) = 4 [pid 769] <... bpf resumed>) = 4 [pid 768] <... bpf resumed>) = 4 [pid 767] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 770] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 767] <... bpf resumed>) = 5 [pid 771] <... bpf resumed>) = 4 [pid 770] <... bpf resumed>) = 5 [pid 769] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 768] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 767] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 770] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 769] <... bpf resumed>) = 5 [pid 767] <... bpf resumed>) = 0 [pid 770] <... bpf resumed>) = 0 [pid 768] <... bpf resumed>) = 5 [pid 767] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 771] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 770] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 769] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 768] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 767] <... bpf resumed>) = 6 [pid 771] <... bpf resumed>) = 5 [pid 770] <... bpf resumed>) = 6 [pid 769] <... bpf resumed>) = 0 [pid 768] <... bpf resumed>) = 0 [pid 767] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 770] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=6}}, 16 [pid 769] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 768] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=24, 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=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144 [pid 767] <... bpf resumed>) = 7 [pid 771] bpf(BPF_MAP_FREEZE, {map_fd=5}, 4 [pid 770] <... bpf resumed>) = 7 [pid 767] exit_group(0 [pid 770] exit_group(0 [pid 769] <... bpf resumed>) = 6 [pid 767] <... exit_group resumed>) = ?